BIBLIOGRAPHY OMANEY, MARK S. APRIL...

BIBLIOGRAPHY

OMANEY, MARK S. APRIL 2010. Growth and Yield Performance of Potato
Entries Under Bulalacao Mankayan Benguet Condition. Benguet State University, La
Trinidad Benguet.
Adviser: Esther Josephine D. Sagalla, MSc.
ABSTRACT
The study was conducted to determine the growth and yield of different potato
entries under Mankayan condition; identify the best performing variety based on yield
and resistance to pest and disease; and to determine the profitability of the different
potato entries.

Among all the entries evaluated, CIP 380241.17, Igorota, and Ganza had the
highest number and weight of tubers, highest total and computed yield, and return on
cash expense. These entries were also observed to be resistant to leaf miner and late
blight.

TABLE OF CONTENTS
Page
Bibliography……………………………………………………………………... i
Abstract ……… ………………………………………………………………… i
Table of content ………………………………………………………………….. ii

INTRODUCTION ……………………………………………………………… 1

REVIEW OF LITERATURE …………………………………………………… 2
Climatic Requirement of Potato ……………………………………………… 2
Importance of Potato ………………………………………………………….. 2
Evaluation of Potato ………………………………………………………….. 2
Importance of Elevation in Potato Production ……………………………….. 3
Harvesting of Potato ………………………………………………………….. 4
Results of Past Studies ……………………………………………………….. 4
MATERIALS AND METHODS ……………………………………………….. 6
RESULTS AND DISCUSSION …………………………………………….…. 11
Meteorological Data …………………………………………………………… 11
Percent Survival ………………………………………………………………… 12
Plant Vigor ……………………………………………………………………… 12
Canopy Cover ………………………………………………………………… 13
Plant Height …………………………………………………………………… 15
Late Blight Incidence ………………………………………………………… 16
Bacterial Wilt infestation ……………………………………………………… 17
Leaf Miner Incidence …………………………………………………………… 18
ii

Number of Marketable and Non marketable Tubers …………………………… 20
Weight of Marketable and Non-marketable Tubers …………………………… 20
Total Yield and Computed Yield ……………………………………………… 26
Dry Matter Content …………………………………………………………… 27
Return on Cash Expenses ……………………………………………………… 29
SUMMARY, CONCLUSION AND RECOMMENDATIONS………………..
30
LITARATURE CITED…………………………………………………………… 32
APPENDICES…………………………………………………………………….. 34

iii

INTRODUCTION

Potato (Solanum tuberosum) ranks among the high value crops grown in
Mankayan during the months of September until January.

Farmers in this locality usually grow one variety namely, ‘granola’ every year. As
a result, the variety becomes more prone to pest and diseases such as leaf miner and late
blight (Perez et al., 2006) leading to losses in yield. For instance, yield losses of about
70 -100% is mainly due to the infestation of pest particularly leaf miner (Verzola et al,
1999).
One way to overcome the problem on yield loss and pest and disease occurrence
is to evaluate other varieties that are high yielding and resistant to pest and diseases.

Moreover, evaluation of different varieties of potato may provide a wide range of
traits which could guide farmers to select their preferred varieties (Baidu – Forson, 1997)

Thus, it is the objective of this study to:

1. determine the growth and yield of different potato entries under Mankayan
condition;

2. identify the best performing variety based on yield and resistance to pest and
disease; and

3. determine the profitability of the different potato entries.

This study was conducted at Bulalacao, Mankayan, Benguet from December 2008
to March 2009.

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

2
REVIEW OF LITERATURE

Climatic Requirement of Potato

Potato grows mainly in cool, high altitude areas with well distributed rainfall
(Simongo, 2007). It is best grown in areas with temperature ranging from 17- 21oC and an
average humidity of 86%. Potato can be produced on wide range of soils, ranging from
sandy loam, silt loam, loam and clay soil. The soil should be well aerated, fairly deep and
well supplied with organic matter. Well drained sandy loam and loam soils, rich in humus
are most suitable for potato (Liejder, 1996).

Importance of Potato

From utilization perspective, the importance of potato is related to the
importance of the food crops it represents. Potato is the world’s 4th most important food
crop (after rice, wheat and maize) in terms of production and area cultivated (Razdan and
Matto, 2005).

Potato exceeds all other crops in providing calories, protein and several other
nutrients and a very good source of vitamin C. Potatoes are both affordable and can be
prepared in a greater variety of ways than most food so people are quite happy eating them
as a major component of their diets. The potato crop is one of the most important of all in
the rural economy (Guilford and Grubb, 2006).

Evaluation of Potato

Beukema in 1985 stated that clonal selection and evaluation is important in a
breeding program. Procedures involve the production of healthy good looking plants,
resistance to pest and disease and high yielding. Tubers of each selected varieties are
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

3
harvested and kept separate to be planted in the next trials. Plants are carefully inspected
for any abnormalities. First generation (F1), which are found to have some abnormalities
are rejected and removed away from fields.

Importance of Elevation in Potato Production

Production system in temperature and high elevation areas particularly over
2,000 meters ASL is more common with each other than with lowland production systems.
Systems in Mediterranean and mid elevation highlands are intermediate in many respects.
For some examples, temperate and high elevation areas have cold winters so farmers
usually grow potatoes on summer, which is favorable in the growth of potato. Lowland
zones have hot summers so farmer usually grows potato in the winters. In mid elevation
and Mediterranean zones, farmers grow potatoes at various times of the year depending on
market and climate conditions. Seed potatoes are produced in temperate and highland zones
and shipped to lowland and Mediterranean zones. Storage is easier in temperate and high
zones where potatoes are harvested at the beginning of hot season (Horton, 1987).
Potatoes are grown in higher elevation than any other major crops. In the
tropics, the typical mountain areas that produce potatoes is cold, best temperature
fluctuated sharply from day to night. And the average relative humidity is high. Soils are
well drained, but there is great variation in altitude, slopes, soil fertility and other
environmental variables that influence yields. Production hazards like frost causes low
yields in highland areas, where the chances of crop failure are great, Farmers often
economize to purchase inputs in order to minimize their financial risks (Horton, 1987).
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

4
Harvesting of Potato
Time to harvest is determined largely by price prospect on the market, the weather
and to some extent the availability of labor. It is highly desirable to allow the crops to
attain as much maturity as possible for harvesting. A more mature potato usually is for
higher specific gravity or higher solid content and can be harvested with less skinning
and bruising injuries (Smith, 1997).

Result of Past Studies

Lem-ew in 2007 said that entries 5.19.2.2 and 380241.17 significantly obtain
the highest plant survival, plant height, plant vigor and canopy cover at Cabutotan,
Benguet. Also they were highly resistant to leaf miner and least infected with late blight
and produced the highest yield.

Tabon in 2007 conducted his study in mid and high elevation and results
revealed that accession 5.19.2.2 obtained the highest percentage of plant survival, highly
vigorous plants, widest canopy cover, tallest plants, and resistance to late blight infection
and produced the highest computed and total yield.

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

5
MATERIALS AND METHODS

An area of 165m2 was thoroughly prepared and divided into three blocks. Each
block was subdivided into 11 plots measuring 1m x 5m. One tuber was planted per hill at
a distance of 25cm x 30 cm in between hills and rows. Chicken manure and Triple 14
were applied following the recommended rate for potato production.

All recommended cultural management practices were done uniformly in all
treatments.
The treatments which were replicated 3 times were:
Code

Entry

Source
E1

2.21.6.2

Philippines
E2

5.19.2.2 Philippines
E3

573275 CIP

E4

676070 CIP
E5

96-06
/
380241.17
CIP
E6

IGOROTA
Philippines
E7

GANZA CIP

E8

GRANOLA
Germany
E9

FARMER
BPI
E10

RECOLTA
BPI
E11

SIGNAL
BPI

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

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Figure 1. Overview of experimental area and harvesting of eleven potato entries at
Bulalacao,
Mankayan

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

7
Data Gathered

1. Meteorological data. Temperature, relative humidity and rainfall were taken
every two weeks. Temperature and relative humidity were taken using a compact
hygrometer while rainfall was taken by placing cans in the field to collect water during
precipitation. The volume of water collected will be measured using a beaker.
2. Percent plant survival. This was taken at 30 days after planting (DAP) using the
formula:
Number
of
plants
survived

% Plant survival =

x 100

Number of plants planted

3. Plant vigor. This was taken at 30, 45, and 60 days after planting using the
following scale (CIP, 2004):
Scale Description

Remarks
5
Plants are strong with robust stem and leaves, Highly vigorous

leaves are light to dark in color

4
Plants are moderate with robust stem and
Moderately vigorous
leaves, leaves are light green in color.

3
Better than less vigorous

Vigorous

2
Plants are weak with few stem and leaves pale Less vigorous

1
Plants are weak with few stem and leaves are Poor vigor

very pale

4. Canopy cover. This was gathered at 30, 45, 60 DAP using a wooden
frame measuring 120cm x 60cm and having equal sized 12cm x 6cm grids.
5. Initial plant height (cm). This was measured at 30 days after planting from the
base of the plant to tallest shoot of ten sample plants.
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

8
6. Final plant height (cm). This was measured at maturity from base of the plant
to tallest shoot of ten sample plants.
7. Leaf miner incidence. This was observed at 30, 45, 60, 75 DAP using the
following scale (CIP, 2001):
Scale
Description
Remarks
1
Less infested (1-20%)
Highly Resistant
2
Infested (21-40%)
Moderately Resistant
3
Moderate infested (41-60%) Susceptible
4
Several infested (61-80%) Moderately Susceptible
5
Most infested (81-100%)
Very Susceptible
8. Late blight incidence. This was observed at 30, 45, 60, 75 DAP using the
following rating scale (Henfling, 1987):
Blight (%) CIP Scale Value Description of Corresponding Symptoms
0
1
No blight can be observed.
Trace - >5
2
Late blight present; maximum of 10 lesions/plant
5 ->15
3
Plant look healthy but lesions are easily seen at
closer distance. Maximum foliage area affected by
lesions or destroyed corresponds to know more
than 20 leaflets.

15 - <35
4
Late blight easily seen on most plant about 25 % of
the foliages is covered with lesions or destroyed.

35 - <65
5
Plot look green; however all plants are affected,
lower leaves are dead. About half of foliage are
destroyed.

65 - <85
6
Plot look green with brown flecks about 75% of
each plant is affected leaves of the lower half the
foliage are destroyed.

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

9
85 - <95
7
Plot neither predominantly green nor brown; only
top leaves are green; many stems have large
lesions.

95 - < 100
8
Plot is brown colored; few leaves still have green
areas; most stem have lesion or are dead.

100 9
All
dead.

9. Bacterial wilt infestation. This was obtained at 30, 45, 60, 75 DAP using the
formula:

Number of Plant Infested
% Bacterial wilt infestation =
x 100

Number of Plant Planted

10. Number and weight of marketable tubers per plot (kg). Marketable tuber free
from injuries, cracks, not malformed and not attacked by pests were counted and weighed
at harvest.
11.
Number and weight of non-marketable tubers per plot (kg). Non-
marketable tubers such as those malformed, damaged by pest and injured were counted
and weighed at harvest.
12. Total yield per plot (kg). This was the weight of marketable and non
marketable tubers.
13. Computed yield per hectare (tons/ha). This was computed using the formula:

Total Weight Per Plot

Yield (ton/ha) = x 10, 000/1000

Plot Size (m2)

14. Dry matter content (DMC). Tubers were weighed into 100g/sample, sliced
into cubes, and oven dried at 80°C for 72 hours. The DMC was computed using the
formula:

% Dry Matter Content (DMC) =100% -% MC
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

10
Where:

Fresh Weight – Oven Dry Weight
% Moisture Content (MC) = x 100

Oven Dry Weight

15. Return on cash expense (ROCE). This was computed by using the formula:

Gross
Sale-Total
Expenses

ROCE= x
100

Total Expenses

Analysis of Data

All quantitative data were analyzed using analysis of variance (ANOVA) for
randomized complete block design (RCBD) with 3 replications. The significance of
difference among treatments was tested using the Duncan’s Multiple Range Test (DMRT)
at 5% level of significance.

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

11
RESULTS AND DISCUSSION

Meteorological Data
The temperature during the conduct of the study ranged from 16oC to 24oC which
is within the optimum temperature favorable for potato growth (Table 1). The optimum
temperature for potato growth is ranging from 17oC to 22oC (Horton, 1987).
The highest relative humidity recorded was 91% during the eighth and eleventh
week of potato growth. The average relative humidity during the twelve weeks of potato
growth is within the optimum relative humidity for potato production which is 86%
(Horton, 1987).
There was no rain fall from first to sixth week. The highest rainfall was during
February (2.7 L). This minimal rainfall is favorable for potato growth since potatoes are
adapted to low rainfall (HARRDEC, 1996).

Table 1. Rainfall, temperature and relative humidity from December to March

TEMPERATURE
RELATIVE
RAINFALL
MONTH WEEK
(oC)
HUMIDITY (%)
(L)
December 1st week
18
73
-
January 2nd week
16
80
-
January 3rd week 17
81
-
January 4th week 22
84
-
January 5th week 22
83
-
January 6th week 21
76
-
February 7th week 23
84
1.73
February 8th week
24
91
2.70
February 9th week 23
84
1.13
February 10th week 23
84
1.33
March 11th week
21
91
0.07
March 12th week
23
84
-

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

12
Percent Survival

Significant difference on percent survival can be observed among the different
potato entries. Entries Recolta, Farmer, Signal and the two check varieties Igorota and
Ganza gave the highest percentage survival of 100% while PHIL 5.19.2.2 and the check
variety Granola had the least survival.

The high percentage of survival could be due to the favorable environmental
condition during the growth of potato entries. The potato seed tubers used were also
disease-free.

Plant Vigor

Significant differences in plant vigor were noted from the potato entries at 45
and 60 DAP (Table 2). All entries were vigorous (3) to highly vigorous (5) at 30 and 45
and at 60 DAP.

Entries Farmer and Recolta were observed to have poor vigor (1) at 60 DAP.
The decrease of vigor in some entries could be due to late blight infection and leaf
miner infestation observed at 45 DAP. The entries which were highly vigorous may
indicate resistance against late blight and leaf miner.

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

13
Table 2. Percentage survival and plant vigor at 30, 45, and 60 DAP

SURVIVAL
PLANT VIGOR
(%)
DAYS AFTER PLANTING
ENTRY
30 45 60

PHIL 2.21.6.2
83
4 5a
5a

PHIL 5.19.2.2
75
4 5a
5a

CIP 380241.17
84
4
5a
5a

CIP 676070
93
4 5a
5a

CIP 573275
80
5 5a
5a

Signal
100
4 4b
4b

Recolta
100
3 3c
1c

Farmer
100
3 3c
1c

Granola
76
3 4b
4b

Ganza
100
4
5a
5a

Igorota 100
5 5a
5a

CV (%)
3.76
8.27
8.27
5.79
*Means with the same letter are not significantly different at 5% level by DMRT.

Rating Scale: 1–poor vigor; 2– less vigorous; 3–vigorous; 4-moderately vigorous;
5 –highly vigorous

Canopy Cover

Analysis shows significant differences on the canopy cover of potato entries from
30 to 75 DAP (Table 3). Increasing canopy was noted in all entries at 30, 45, and 60 DAP
except entries Recolta and Farmer. These entries had decreasing canopy due to late blight
infection.
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

14
Entries CIP 573275, PHIL 2.21.6.2 and the two check varieties Ganza and
Igorota had the widest canopy cover at 75 DAP.
The widening canopy of most potato entries could be attributed to the optimum
environmental condition and an indication of their resistance to late blight.
The difference also in canopy cover of the entries might be attributed to the
earliness or lateness of tuber formation. It was found that entries which tuberize later
develop more canopies of longer duration than entries which tuberize earlier. (Cardesa et
al., 2001).

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

15
Table 3. Canopy cover at 30, 45, 60 and 75 DAP of the eleven potato entries

CANOPY COVER
ENTRY
DAYS AFTER PLANTING
30
45 60 75

PHIL 2.21.6.2
42ab
56abc
61a
68

PHIL 5.19.2.2
30b
38bcde
47ab
61

CIP 380241.17
37b
44abcde
50ab
58

CIP 676070
30b
38bcd
49ab
55

CIP 573275
45ab 58ab
63a
71

Signal
45ab 53abcd
56a
71

Recolta
30b
33de
27b
0

Farmer
28b
30e 26b
0

Granola
31b
36cde
45ab
56

Ganza
42ab
54abcd
59a 65

Igorota 55a 62a
63a
67

CV (%)
24.37
24.25
20.09
14.65
*Means with the same letter are not significantly different at 5% level by DMRT.

0 = no canopy cover

Plant Height

Highly significant differences were observed in both initial and final plant height
of different potato entries (Table 4). Igorota had the tallest plants at 30 DAP while entries
PHIL 5.19.2.2 and Ganza had the shortest plants.
CIP 380241.17 was the tallest among all entries at 80 DAP. Entries Farmer and
Recolta died at 75 DAP due to late blight and leaf miner incidence.
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

16
Table 4. Plant height at 30 and 80 DAP of the eleven potato entries

ENTRY HEIGHT
(cm)

30DAP 80DAP

PHIL 2.21.6.2
22.7bc
56.1a

PHIL 5.19.2.2
10.7e
56.2a

CIP 380241.17
20.0bcd
56.4a

CIP 676070
18.3cd
47.5bc

CIP 573275
18.8bcd
45.0c

Signal
26.0ab
33.2d

Recolta
21.5bc
0

Farmer
12.9de
0

Granola
15.3cde
46.3bc

Ganza
10.6c
36.1e

Igorota
30.4a
48.0b

CV (%)
20.92
3.90
*Means with the same letter are not significantly different at 5% level by DMRT.

**Note: Entries with 0 = died at 75 DAP

The difference in height of potato entries might be due to their genotypic
characteristics (Sano, 1980).

Late Blight Incidence

All entries except for Farmer and Recolta were rated as highly resistant to late
blight at 30 DAP (Table 5). At 45 DAP, Recolta was rated as moderately susceptible
while Farmer and Granola were rated as moderately resistant and the rest of the entries
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

17
were resistant to highly resistant. Most of the entries at 60 DAP were resistant to
moderately resistant. At 75 DAP, most of the entries were rated as moderately resistant
except for PHIL 2.21.6.2, CIP 676070 and Ganza which remained to be moderately
resistant. Granola and Signal had shown susceptibility to late blight infection at 75 DAP.

Incidence of late blight in entries Farmer and Recolta at 45 DAP might be
attributed to their genetic make up and reflected by their deteriorating canopy cover
during their growth period. Resistance of most entries to late blight may be due to the
favorable conditions such as minimal rainfall and optimum temperature. Late blight is
usually prevalent during heavy rain and during wet and cool seasons (Ganga, et al 1989).

Bacterial Wilt Infestation

There was no bacterial wilt observed during the conduct of the study. The
planting materials used and the area where potato entries were planted were bacterial
wilt-free.

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

18
Table 5. Reaction to Late blight incidence at 30, 45, 60 and 75 DAP of potato entries

REACTION TO LATE BLIGHT
ENTRY
DAYS AFTER PLANTING
30
45 60 75

PHIL 2.21.6.2
1
1
2 3

PHIL 5.19.2.2
1
1
2 3

CIP 380241.17
1
1
2
3

CIP 676070
1
1 2 3

CIP 573275
1
1 2 4

Signal
1 2 4 7

Recolta
4 6 8 9

Farmer
4 5 8 9

Granola
1 3 4 6

Ganza
1
1 2 3

Igorota
1 2 3 4
Rating Scale: 1 –highly resistant; 2 – 3 – moderately resistant; 4 – 5 – resistant
6 – 7 - moderately susceptible; 8 – 9 – highly susceptible

Leaf Miner Incidence

Result shows that all entries at 30 DAP were highly resistant to leaf miner
(Table 6). At 45 DAP, entries Signal, Recolta and Farmer were susceptible to the pest.

CIP 380241.17, CIP 573275 and Ganza were moderately resistant at 60 DAP but
at 75 DAP all entries became susceptible to leaf miner except CIP 380241.17 which
remained moderately resistant.
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

19

Occurrence of leaf miner during the conduct of the study may be due to late
planting. When most of the farmers had harvested their potato, leaf miner was prevalent
in the area.

Table 6. Reaction to Leaf miner incidence at 30, 45, 60 and 75 DAP of eleven the potato
entries

REACTION TO LEAF MINER
ENTRY
DAYS AFTER PLANTING

30 45 60
75

PHIL 2.21.6.2
1 2 2
3

PHIL 5.19.2.2
1 2 2 3

CIP 380241.17
1
2
2
2

CIP 676070
1 2 3
3

CIP 573275
1 2 2
3

Signal
1 3 4
4

Recolta
1 3 5
-

Farmer
1 3 5
-

Granola
1 2 3
4

Ganza
1 2 2
3

Igorota
1 2 3
3
Rating Scale: 1 –highly resistant; 2 –moderately resistant; 3-susceptible
4 -moderately susceptible; 5 –very susceptible

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

20
Number of marketable and non marketable tubers

Table 7 shows significant differences on the number of marketable and non-
marketable tubers (Fig. 2). Marketable tubers were classified as super extra large (SXL),
extra big, big and marble tubers.

The number of super extra large tubers was highest in entries PHIL 5.19.2.2, CIP
380241.17 and Ganza. Entry igorota had the highest number (110) of extra large tuber
while entry signal had the highest number for big and marble-sized tubers. Check variety
Ganza had the highest number of non-marketable tubers among all entries.

High number of super extra large tubers of entries CIP 380241.17, PHIL 5.19.2.2
and Ganza (cv) might be attributed to their wide canopy, good vigor, resistance to late
blight and leaf miner and favorable environmental condition such as minimal rainfall and
optimum relative humidity.

Weight of marketable and non marketable tubers

Entries CIP 380241.17 and Ganza obtained the heaviest super extra large tubers
(Table 8). Igorota and Signal had the heaviest extra large, big and marble tubers,
respectively (Fig. 2).

For non-marketable tubers, CIP 573275 had the heaviest tubers while entry
Farmer had the least.

The low yield of entries Farmer and Recolta may be attributed to their poor vigor
and susceptibility to late blight and leaf miner.

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

21
Table 7. Number of marketable and non–marketable tubers of eleven potato entries

ENTRY
MARKETABLE TUBERS

NON-MARKETABLE
Super
TUBERS
Extra
Extra-
Big Marble TOTAL
Big
large

PHIL 2.21.6.2
35a 97ab
81ab
31bc
244
28abc

PHIL 5.19.2.2
42a
72bcd
49bc
29bc
192
26abc

CIP 380241.17
42a
84bc
65abc
32bc
227 22abcd

CIP 676070
37a
64bcd
53bc
28bc
183 7cd

CIP 573275
30a
60bcd
60bc
30bc
180 14bcd

Signal
12b
60bcd
98a
72a
243 28abc

Recolta
1b
12d
31c
34bc
78 23abcd

Farmer 0b
3bcd
55bc
49b
107 5d

Granola
32a
50cd
34c
20c
135 8bcd

Ganza
42a
62bcd
55bc
37bc
195 37a

Igorota 38a
110ab
72ab
53ab
273 29ab

CV (%)
12.74
27.75
9.79
12.12
21.00
21.29
*Means with the same letter are not significantly different at 5% level by DMRT

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

22
Table 8. Weight of marketable and non-marketable tubers of eleven potato entries

ENTRY
MARKETABLE TUBERS
NON-
(Kg/5m2)
MARKETABLE
Super
TUBERS
Extra
Extra-
Big Marble
TOTAL (Kg/5m2)
Large
large

PHIL 2.21.6.2
3.0ab
3.07d
1.67ab
0.22c
8.00
0.38

PHIL 5.19.2.2
3.0a
2.9bc
1.05bcd
0.30bc
8.55 0.47

CIP 380241.17
4.0a
3.55ab
1.58abc
0.30bc
9.48
0.22

CIP 676070
3.0a
2.47bc
0.87cd
0.22c
6.73 0.10

CIP 573275
2.0ab
2.35bc
1.68ab
0.32bc
7.63 0.53

Signal
1.0bc
1.98c
2.12a
0.92a
5.67 0.15

Recolta
0.0c
0.35d
0.37e
0.25bc
1.37 0.12

Farmer
0.0c
0.1d
0.83cd
0.38bc
1.34 0.03

Granola
3.0a
1.83c
0.75cd
0.22c
5.93 0.13

Ganza
4.0a
3.55ab
1.25bcd
0.42bc
9.30 0.42

Igorota 3.0ab
4.2a
1.58abc
0.53b
9.10 0.13

CV (%)
15.9
27.88
11.74
10.35 23.95
15.37
*Means with the same letter are not significantly different at 5% level by DMRT

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

23

PHIL 2.21.6.2

IGOROTA

CIP 573275

PHIL 5.19.2.2

GRANOLA

RECOLTA

SIGNAL GANZA

FARMER

CIP 676070

CIP 380241.17

Figure 2. Marketable and non-marketable tubers of the eleven potato entries

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

24
Total Yield and Computed Yield

Analysis revealed highly significant differences on the yield per plot of potato
entries (Table 9). Entry CIP 380241.17 produced the highest total yield of 9.48 Kg/5m2.
The rest of the entries except for Farmer and Recolta produced more yield than the check
variety Granola.
Similarly, entry CIP 380241.17 had the highest computed yield of 18.97 t ha-1
significantly outyielding the check variety Ganza and Igorota with yields of 18.60 and
18.20 t ha-1 respectively. The lowest yield was noted from entries Recolta and Farmer
which were observed to be susceptible to late blight and leaf miner.

The yield was generally high due to the optimum environmental condition, good
growth stand, and resistance to pest and diseases during the growth period of the potato
entries.

Dry Matter Content
Results show significant differences on tuber dry matter content of the entries
grown at Bulalacao, Mankayan (Table 10). All entries evaluated had high dry matter
content ranging from 17 to 23%.
PHIL 2.21.6.2 had the highest tuber dry matter content of 23% while entry
Recolta had the lowest tuber dry matter of 17%.

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

25
Table 9. Total and computed yield of eleven potato entries

TOTAL YIELD
COMPUTEDYIELD
ENTRY
(Kg/5m2)
(t ha-1)

PHIL 2.21.6.2
8.00ab
16.00ab

PHIL 5.19.2.2
8.55ab
17.10ab

CIP 380241.17
9.48a
18.97a

CIP 676070
6.73ab
13.51ab

CIP 573275
7.63ab
15.27ab

Signal
5.67b
11.33b

Recolta
1.37c
2.73c

Farmer
1.34c
2.67c

Granola
5.93b
11.87b

Ganza
9.30a
18.60a

Igorota 9.10a
18.20a

CV (%)
23.95
23.95
*Means with the same letter are not significantly different at 5% level by DMRT

The high tuber dry matter content of the different potato entries might be due
to their genotypic characteristics since dry matter is an inherited characteristic
(Rastovski, 1981).

Kellock in 1995 stated that tubers with high dry matter content are suitable for
processing. Results also show that tubers with high dry matter have good keeping quality,
high yield, and is the most suitable for cultivation, table consumption, and chip
production (Panley and Singh, 2008).
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

26
Table 10. Dry matter content of the potato entries

ENTRY
DRY MATTER CONTENT
(%)

PHIL 2.21.6.2
23a

PHIL 5.19.2.2
21ab

CIP 380241.17
20abc

CIP 676070
19bc

CIP 573275
21ab

Signal
18bc

Recolta
17c

Farmer
20abc

Granola
19bc

Ganza
20abc

Igorota 21ab

CV (%)
10.03
*Means with the same letter are not significantly different at 5% level by DMRT

Return on Cash Expenses (ROCE)

The potato entries gave a positive return on cash expense except for entries
Signal, Recolta and Farmer (Table 11). CIP 382241.17 gave the highest ROCE of
66.97% followed by Ganza (63.73%) and Igorota (60.27%) while the entries Recolta,
Farmer and Signal gave negative ROCE. Entries with negative ROCE had low yield as a
result of their susceptibility to leaf miner and late blight.

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

27
Table 11. Return on cash expense of the eleven potato entries

COST OF
MARKETABLE GROSS
NET
ROCE
ENTRY
PRODUC-
TUBERS
SALE
INCOME
(%)
TION (PhP)
(kg/5m2)
(PhP)
(PhP)
PHIL 2.21.6.2
153.30
8.00
216.00
62.70
40.90
PHIL 5.19.2.2
153.30
8.50
230.85
77.85
50.78
CIP 380241.17
153.30
9.48
255.96
102.66
66.97
CIP 676070
153.30
6.73
181.76
28.46
18.56
CIP 573275
153.30
7.63
206.01
52.71
34.38
Signal 153.30
5.67
153.09
-0.21
-0.14
Recolta 153.30
1.37
36.99
-116.31
-75.87
Farmer 153.30
1.34
36.18
117.12
-76.39
Granola 153.30
5.93
160.11
6.81
4.44
Ganza
153.30
9.30
251.10
97.70
63.73
Igorota
153.30
9.10
245.70
92.40
60.27
* Total cost of production includes cost of planting materials, insecticides, fertilizers and
labor.

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

28
SUMMARY, CONCLUSIONS AND RECOMMENDATIONS

Summary

The study was conducted to determine which entries of potato perform best based
on growth and yield and resistance to pest and diseases and to know the economic value
of each potato entry grown under Bulalacao, Mankayan, Benguet condition.
Temperature, relative humidity and rainfall from December to March were noted
to be at optimum level for potato production.
Highest plant survival was obtained from entries Recolta, Farmer, Signal, Ganza
and Igorota while PHIL 5.19.2.2 had the lowest survival. Most of the entries were
vigorous except entries Farmer and Recolta.

Igorota (cv) and CIP 573275 had the widest canopy at 60 DAP. Igorota and
CIP 380241.17 were the tallest at 30 and 80 DAP, respectively.
Most of the entries at 60 DAP were resistant to moderately resistant to late blight
except entries Farmer and Recolta which were susceptible to the disease as early as
45 DAP.

All entries at 30 DAP were recorded to be highly resistant to leaf miner and at 45
DAP most of the entries were moderately resistant. Most entries at 75 DAP were
susceptible to leaf miner except CIP 380241.17 which was moderately resistant to leaf
miner.

PHIL 5.19.2.2, CIP 380241.17, Ganza, Igorota and PHIL 2.21.6.2 had the most
number and heaviest weight of Super Extra Large (SXL) tubers. Ganza had the highest
number and weight of non-marketable tubers.
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

29

CIP 380241.17 had the highest total (kg/5m2) and computed yield (t ha-1) while
Farmer had the lowest.
The highest tuber dry matter was obtained from PHIL 2.21.6.2 and the lowest was
from entry Recolta.
Out of the eleven potato entries planted, CIP 380241.17 gave the highest return
on cash expense followed by Ganza and Igorota.

Conclusion

Among all the potato entries evaluated under Bulalacao, Mankayan, Benguet
condition from December to March, CIP 380241.17, Igorota and Ganza performed best.
These entries produced high yields, were resistant to leaf miner and late blight and gave
high returns on cash expense.

Recommendation

Based on findings, Ganza, Igorota, and CIP 380241.17 are recommended for
cultivation at Bulalacao, Mankayan, Benguet.

Continuous evaluation and selection of potato entries is recommended at
Bulalacao and some part of Mankayan until a variety with a stable performance will be
recommended.

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

30
LITERATURE CITED

BAIDU-FORSON, J.1997. On Station Farmer Participatory Varietal Evaluation: A
Strategy for Client-oriented Breeding. .Accessed at
http://journals.cambridge.org/action/displayAbstact;jsessionid=E4d53E20C712
C5345B7BA6B2EEE64CD6.tomcot1?fromPage=online&aid=2711

BEUKEMA, H.P. 1985. Seed Quality, Seed Use, Seed Supply and Seed Production.
International Agricultural Center. Wageringen, Netherland. P. 98.

CARDESA, Y., WONG VON CHEONG, K and N.GOVIDEN. 2001. Tropical potato
clones with larger canopies do not affect growth, yield and yield components of
intercropped sugarcane. Accessed at http://www.bioline.br/request?cs01035

CENTRO INTERNACIONAL de la PAPA (CIP ). 2004. Fact Sheet. International Potato
Center. Benguet State University. La Trinidad Benguet. P. 5.

GANGA, Z.N., E.O.BADOL and S. GAYAO 1989. Potato germplasm evaluation for late
blight resistance at diverse highland location during different seasons. Research
Result Present in a series of working paper Vol. 11 NPRCRTC Benguet State
University. La Trinidad Benguet. Pp.6-8.

GUILFORD, W.S and E.H. GRUBB. 2006. The Potato: A Compilation of Information
From Available Source. Accessed at
http://chestofbooks.com/food/ingredients/Potato-Compilation/Chapter-I-
Importance-Of-The-Potato.html

HIGHLAND AGRICULTURE AND RESOURCES RESEARCH AND
DEVELOPMENT CONCERTIUM ( HARRDEC ) 1996. Highland potato
techno guide (3rd edition).Benguet State University. La Trinidad Benguet Pp1-
5.

HENFLING, J.W. 1987. Techno Guide Information Bulletin 4. Late Blight of Potato. P.5.

HORTON, D. S. 1987. Potatoes: Production, Marketing and Programs for Developing
Countries. Win Rock International, West View Press. Pp. 113-115.

KELLOCK J.A. 1995. Potatoes; Factor affecting dry matter. Access at
http://www.dpi.vic.gov.au/DPI/nrerninf.nsf/childdocs/.

LEM-EW, J.A. 2007. Growth and Yield of Organically Grown Potato Entries in Two
Location of Benguet. BS Thesis: Benguet State University, La Trinidad,
Benguet. P.7

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31
LIEJDER, R. A. 1996. Fertilization of Potato Crops in Sustainable Agriculture.
International Agriculture Center. P. 4

PANLEY S.K., and B. SINGH 2008. Assessment of Processing Potato Varieties for Dry
Matter, Yield and Storage Behaviour at Deesa. Journal of the Indian Potato
Association. Access at
http://www.cababstractsplus.org/abstracts/Abstract.aspx?AcNo=20033204699
PEREZ, J. C., P. A. DALANG, C. G.KISWA, W. L. MARQUEZ, L. M. PACUS, and
G.S. BACKIAN. 2006. Improvement of Potato Seeds Production Technology in
the Philippines. NPRCTC Working Series. La Trinidad Benguet.
RASTOVSKI, A..1981. Storage f potato post-harvest behavior, Storage design, storage
practice, handling. Center for Agriculture Publishing and Documentation
Wageningen. P.31
RAZDAN, M. K. and A. K. MATTOO. 2005. Genetic Improvement of Solanaeceous
Crop V.1: Potato.

SANO, L., 1980 Rate of tuber production of three white potato varieties grown under six
fertility levels. MS Thesis Mountain State Agricultural College La Trinidad
Benguet P.5

SIMONGO, D. K. 2007. Growth, Yield and Dry Matter Partioning of Potato Genotype
Under Organic Prodction of La Trinidad Benguet. Benguet State University. La
Trinidad Benguet.

SMITH, O.A. 1997 Potatoes; Production, Processing. Third Edition. Avi Publishing
Company, Inc. Westport Connecticut.

TABON C.S. 2007.Agronomic Characteristics of Potato Accessions Grown organically
Mid and High-Elevation of Benguet BS Thesis. Benguet State University. La
Trinidad Benguet

VERZOLA, E.A., JOSHI R.C. TIONCO E. R. and N.S BAUCAS. 1999. Potato Leaf
Miner Task Force. Inter Agency Investigating Team Philippines DA – RFU –
CAR – BPI Compound Baguio City.

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

32
APPENDICES

Appendix Table 1. Percent survival at 30 DAP

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
90
85
75 250 83

PHIL 5.19.2.2
80
75
70 225 75

CIP 380241.17
93
80
78 251 84

CIP 676070
95
90
93 278 93

CIP 573275
85
80
75 240 80

Signal
100
100
100 300 100

Recolta
100
100
100 300 100

Farmer
100
100
100 300 100

Granola
78
78
73 229 76

Ganza
100
100
100 300 100

Igorota
100
100
100 300 100

TOTAL 1021
988
964
2973
90

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
148.909
74.455

Treatment
10
3310.061
331.006
28.81**
2.35
3.37

Error
20
229.758
11.488

TOTAL
32
3688.727
**= Highly significant Coefficient of Variation (%) = 3.76
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

33
Appendix Table 2a. Plant vigor at 30 DAP

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
4
4
4 12 4

PHIL 5.19.2.2
5
3
4 12 4

CIP 380241.17
5
3
4 12 4

CIP 676070
4
4
4 12 4

CIP 573275
5
5
4 14 5

Signal
3
5
5 13 4

Recolta
2
3
3 8 3

Farmer
3
3
3 9 3

Granola
3
4
3 10 3

Ganza
5
3
4 12 4

Igorota
4
5
5 14 5

TOTAL 45
43
43
131
4

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
0.727
0.364

Treatment
10
26.303
2.630
20.18**
2.35
3.37

Error
20
2.606
0.130

TOTAL
32
29.636
**= Highly significant Coefficient of Variation (%) = 8.27
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

34
Appendix Table 2b. Plant vigor at 45 DAP

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
5
5
5 15
5a

PHIL 5.19.2.2
5
5
5 15
5a

CIP 380241.17
5
5
5 15
5a

CIP 676070
5
5
5 15
5a

CIP 573275
5
5
5 15
5a

Signal
3
4
4 11
4a

Recolta
3
2
3 8
3c

Farmer
2
3
3 8
3c

Granola
4
4
5 13
4b

Ganza
5
5
5 15
5a

Igorota
4
5
5 14
5a

TOTAL 46
48
50
144
4

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
0.727
0.364

Treatment
10
26.303
2.630
20.18**
2.35
3.37

Error
20
2.66
0.130

TOTAL
32
29.636
**= Highly significant Coefficient of Variation (%) = 8.27
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

35
Appendix Table 2c. Plant vigor at 60 DAP.

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
5
5
5 15
5a

PHIL 5.19.2.2
5
5
5 15
5a

CIP 380241.17
5
5
5 15
5a

CIP 676070
5
5
5 15
5a

CIP 573275
5
5
5 15
5a

Signal
3
4
4 11
4b

Recolta
1
1
1 3
1c

Farmer
1
1
1 3
1c

Granola
4
4
4 12
4b

Ganza
5
5
5 15
5a

Igorota
4
5
5 14
5a

TOTAL 43
45
45
133
4

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
0.242
0.121

Treatment
10
73.636
7.364
135.0**
2.35
3.37

Error
20
1.091
0.055

TOTAL
32
74.970
**= Highly significant Coefficient of Variation (%) = 5.79
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

36
Appendix Table 3a. Canopy cover at 30 DAP

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
41
38
47 126
42ab

PHIL 5.19.2.2
30
29
30 89
30b

CIP 380241.17
45
43
23 111
37b

CIP 676070
20
30
40 90
30b

CIP 573275
40
50
46 136
45ab

Signal
24
50
60 134
45ab

Recolta
40
29
21 90
30b

Farmer
30
25
28 83
28b

Granola
24
31
37 92
31b

Ganza
40
43
43 126
42ab

Igorota
45
51
69 165
55a

TOTAL 379
419
444
1242
38

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
195.455
97.727

Treatment
10
2330.303
233.030
2.77*
2.35
3.37

Error
20
1681.636
84.094

TOTAL
32
4207.636
*= Significant Coefficient of Variation (%) = 24.37
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

37
Appendix Table 3b. Canopy covers at 45 DAP.

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
69
43
57 169
56abc

PHIL 5.19.2.2
42
33
39 114
38bcde

CIP 380241.17
50
55
28 133
44abcde

CIP 676070
26
32
56 114
38bcd

CIP 573275
61
59
53 173
58ab

Signal
30
70
60 160
53abcd

Recolta
40
34
25 99
33de

Farmer
32
25
33 90
30e

Granola
34
38
37 109
36cde

Ganza
52
57
54 163
54abcd

Igorota
54
63
69 186
62a

TOTAL 490
509
511
1510
46

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
24.424
12.212

Treatment
10
3812.061
381.206
3.10*
2.35
3.37

Error
20
2461.061
123.079

TOTAL
32
6298.061
*= Significant Coefficient of Variation (%) = 24.25
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

38
Appendix Table 3c. Canopy covers at 60 DAP.

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
71
49
63 183 61

PHIL 5.19.2.2
60
39
43 142 47

CIP 380241.17
53
59
38 150 50

CIP 676070
36
47
65 148 49

CIP 573275
68
60
60 188 63

Signal
30
75
64 169 56

Recolta
30
25
25 81 27

Farmer
26
27
26 78 26

Granola
50
43
43 136 45

Ganza
55
65
57 177 59

Igorota
60
65
63 188 63

TOTAL 559
563
556
1678
51

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
10.242
5.121

Treatment
10
5087.636
508.764
4.22**
2.35
3.37

Error
20
2411.091
120.555

TOTAL
32
7508.970
*= Significant Coefficient of Variation (%) = 22.09
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

39
Appendix Table 3d. Canopy covers at 75 DAP.

BLOCK

ENTRY
I II
TOTAL

III
MEAN

PHIL 2.21.6.2
75
56
73 204 68

PHIL 5.19.2.2
73
52
59 184 61

CIP 380241.17
61
63
51 175 58

CIP 676070
41
53
70 164 55

CIP 573275
72
67
75 214 71

Signal
71
75
67 213 71

Recolta
0
0
0 0 0

Farmer
0
0
0 0 0

Granola
63
50
56 169 56

Ganza
63
71
60 194 65

Igorota
68
60
73 201 67

TOTAL 627
547
584
1758
53

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
90.242
90.242

Treatment
10
20811.879 20811.879
35.77**
2.35
3.37

Error
20
1163.758
58.188

TOTAL
32
22065.879
**= Highly significant Coefficient of Variation (%) = 14.65
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

40
Appendix Table 4a. Initial Plant height at 30 DAP

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
25.3
18.2
24.6
68.1
22.7

PHIL 5.19.2.2
12.7
115
8.4
32.2
10.7

CIP 380241.17
22.6
14.6
23.0
60.2
20.0

CIP 676070
22.0
18.0
15.1 55.1
18.3

CIP 573275
20.4
21.3
14.8
56.5
18.8

Signal
21.7
29.8
26.5 78.0 26.0

Recolta
21.5
28.6
14.5
64.6
21.5

Farmer
12.7
15.2
11.0 38.9 12.9

Granola
12.6
21.3
12.2 44.1 15.3

Ganza
11.3
11.0
9.6 31.9
10.6

Igorota
29.4
36.5
25.5 91.4 30.4

TOTAL 212.5
226.0
184.8
620.8
18.83

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
80.494
40.247

Treatment
10
1173.069
117.307
7.51*
2.35
3.37

Error
20
312.466
15.622

TOTAL
32
1566.009
**= Highly significant Coefficient of Variation (%) = 20.92%
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

41
Appendix Table 4b. Final Height at 75 DAP

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
55.0
58.3
55.0
168.3 56.1

PHIL 5.19.2.2
55.8
57.4
55.5
168.7 56.2

CIP 380241.17
56.2
56.8
56.2 169.2 56.4

CIP 676070
46.8
47.6
46.9 141.3 47.1

CIP 573275
43.7
44.5
46.8 135.0 45.0

Signal
32.3
33.6
33.7 99.6 33.2

Recolta
0
0
0 0 0

Farmer
0
0
0 0 0

Granola
46.4
46.9
46.7 139.1 46.3

Ganza
32.2
36.3
40.1
108.3 36.1

Igorota
48.6
49.4
46.2 144.2 48.0

TOTAL 417
429.6
427.1
1273.7
39.4

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
8.092
4.046

Treatment
10
12637.510 1263.751
558.09**
2.35
3.37

Error
20
45.228
2.264

TOTAL
32
12690.890
**= Highly significant Coefficient of Variation (%) = 3.90
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

42
Appendix Table 5a. Late blight incidence at 30 DAP

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
1
1
1 3 1

PHIL 5.19.2.2
1
1
1 3 1

CIP 380241.17
1
1
1 3 1

CIP 676070
1
1
1 3 1

CIP 573275
1
1
1 3 1

Signal
1
1
1 3 1

Recolta
3
5
5 13 4

Farmer
4
4
4 12 4

Granola
1
1
2 4 1

Ganza
1
1
1 3 1

Igorota
1
1
1 3 1

TOTAL 16
18
19
53
2

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

43
Appendix Table 5b. Late blight incidence at 45 DAP

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
1
1
1 3 1

PHIL 5.19.2.2
1
1
1 3 1

CIP 380241.17
1
1
1 3 1

CIP 676070
1
1
1 3 1

CIP 573275
1
1
1
3
1

Signal
3
1
2 6 2

Recolta
6
6
5 17 6

Farmer
4
5
5 14 5

Granola
4
4
2 10 3

Ganza
1
1
1 3 1

Igorota
3
1
2
6 2

TOTAL 26
24
22
72
2

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

44
Appendix Table 5c. Late blight incidence at 60 DAP

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
2
2
2
6
2

PHIL 5.19.2.2
2
2
2
6
2

CIP 380241.17
2
2
2
6
2

CIP 676070
3
2
2 7 2

CIP 573275
2
3
2 7 2

Signal
5
5
4 13 4

Recolta
8
8
8 24 8

Farmer
8
8 8
24
8

Granola
4
5
4 13 4

Ganza
3
2
2 7 2

Igorota
3
2
3 8 3

TOTAL 44
43
42
129
4

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

45
Appendix Table 5d. Late blight incidence at 75 DAP

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
3
3
3 9 3

PHIL 5.19.2.2
4
3
4
11 4

CIP 380241.17
3
3
3 9 3

CIP 676070
4
3
3 10 3

CIP 573275
4
4
4 12 4

Signal
7
7
7 21 7

Recolta
9
9
9 27 9

Farmer
9
9
9 27 9

Granola
5
7
6 18 6

Ganza
4
3
3
10 3

Igorota
4
3 4
12
4

TOTAL 56
54
56
166
5

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

46
Appendix Table 6a. Leafminer incidence at 30 DAP

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
1
1
1 3 1

PHIL 5.19.2.2
1
1
1 3 1

CIP 380241.17
1
1
1 3 1

CIP 676070
1
1
1 3 1

CIP 573275
1
1
1 3 1

Signal
2
1
1 4 1

Recolta
2
1
1 4 1

Farmer
1
1
1 3 1

Granola
1
1
1 3 1

Ganza
1
1
1 3 1

Igorota
1
1
1 3 1

TOTAL 13
11
11
35
1

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

47
Appendix Table 6b. Leafminer incidence at 45 DAP

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
2
2
1 5 2

PHIL 5.19.2.2
2
2
2 6 2

CIP 380241.17
1
2
2 5 2

CIP 676070
1
4
2 7 2

CIP 573275
2
1
2 5 2

Signal
3
3
3 9 3

Recolta
3
3
4 10 3

Farmer
4
2
4 10 3

Granola
3
1
2
6 2

Ganza
2
2
2 6 2

Igorota
2
3
2 7 2

TOTAL 26
25
27
78
2

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

48
Appendix Table 6c. Leafminer incidence at 60 DAP

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
2
2
3 7 2

PHIL 5.19.2.2
3
2
2
7
2

CIP 380241.17
2
2
3
7
2

CIP 676070
2
4
2
8 3

CIP 573275
2
2
2
6 2

Signal
4
5
3
12 4

Recolta
5
5
5 15 5

Farmer
5
5
5 15 5

Granola
3
4
3 10 3

Ganza
2
3
2 7 2

Igorota
2
3 2
7
2

TOTAL 33
39
32
104
3

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

49
Appendix Table 6d. Leaf miner incidence at 75 DAP

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
3
3
3 9 3

PHIL 5.19.2.2
3
3
3 9 3

CIP 380241.17
2
2
3 7 3

CIP 676070
3
4
3 10 3

CIP 573275
2
3
3 7 3

Signal
4
5
4 13 4

Recolta
-
-
- - -

Farmer
-
- -
-
-

Granola
4
4
3 11 4

Ganza
3
3
2 8 3

Igorota
3
4
3 10 3

TOTAL 38
41
38
117
4

Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

50
Appendix Table 7a. Number of super extra-large tubers per plot

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
23
39
43 105 35

PHIL 5.19.2.2
46
35
43 125 42

CIP 380241.17
45
60
32 127 42

CIP 676070
36
28
46 110 37

CIP 573275
32
19
38 89 30

Signal
9
14
13 36 12

Recolta
1
0
1 2 1

Farmer
0
0
0 0 0

Granola
26
14
56 96 32

Ganza
37
38
50
125 42

Igorota
37
24
54 115 38

TOTAL 292
271
376
939
28

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
561.273
280.636

Treatment
10
8133.515
813.352
8.22**
2.35
3.37

Error
20
1979.394
98.970

TOTAL
32
10674.182
**= Highly significant Coefficient of Variation (%) = 12.74
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

51
Appendix Table 7b. Number of extra large tubers per plot

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
96
120
74 290 97

PHIL 5.19.2.2
47
125
45 217 72

CIP 380241.17
75
87
91 253 84

CIP 676070
58
81
54 193 64

CIP 573275
42
59
78 179 60

Signal
58
73
50 181 60

Recolta
8
16
13 37 12

Farmer
2
7
0 9 3

Granola
47
46
56 149 50

Ganza
42
75
69 186 62

Igorota
80
144
107 331 110

TOTAL 555
833
637
2025
61

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
3709.818 1854.909

Treatment
10
30757.636 3075.764
10.61**
2.35
3.37

Error
20
5798.182
289.909

TOTAL
32
40265.636
**= Highly significant Coefficient of Variation (%) = 27.75
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

52
Appendix Table 7c. Number of big tubers per plot

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
70
99
75 244 81

PHIL 5.19.2.2
52
75
21 148 49

CIP 380241.17
80
48
67 195 65

CIP 676070
53
61
46 160 53

CIP 573275
26
95
60 181 60

Signal
87
86
122 295 98

Recolta
30
25
38 93 31

Farmer
69
47
50 166 55

Granola
13
25
63 101 34

Ganza
45
64
56 165 55

Igorota
66
83
66 215 72

TOTAL 591
708
664
1963
59

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
634.970
317.485

Treatment
10
11466.909 1146.691
3.15*
2.35
3.37

Error
20
7274.364
363.718

TOTAL
32
19376.242
*= Significant Coefficient of Variation (%) =9.79
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

53
Appendix Table 7d. Number of marble tubers per plot

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
32
34
27 93 31

PHIL 5.19.2.2
21
47
18 86 29

CIP 380241.17
22
30
43 95 32

CIP 676070
40
16
29 85 28

CIP 573275
12
60
18 90 30

Signal
62
87
67 216 72

Recolta
34
31
38 103 34

Farmer
53
39
54 146 49

Granola
17
10
33 60 20

Ganza
25
31
54 110 37

Igorota
47
53
58 158 53

TOTAL 365
438
439
1242
38

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
327.455
163.727

Treatment
10
6468.970
646.897
3.79*
2.35
3.37

Error
20
3411.212
170.561

TOTAL
32
10207.636
*= Significant Coefficient of Variation (%) =12.12
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

54
Appendix Table 7e. Number of non-marketable tubers per plot

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
6
40
39
85 28

PHIL 5.19.2.2
33
29
16
78 26

CIP 380241.17
23
25
18
66 22

CIP 676070
18
1
3
22 7

CIP 573275
2
13
28
43 14

Signal
22
20
42
84 28

Recolta
24
23
23
70 23

Farmer
9
5
0
14 5

Granola
2
4
19
25 8

Ganza
21
31
58
110 37

Igorota
24
36
27
87 29

TOTAL 184
227
273
684 21

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
360.182
180.091

Treatment
10
3303.879
330.388
2.75*
2.35
3.37

Error
20
2406.485
120.324

TOTAL
32
6070.545
*= Significant Coefficient of Variation (%) =21.29
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

55
Appendix Table 8. Total number of marketable tubers kg/5m2

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
221
292
219
732 244

PHIL 5.19.2.2
166
282
127
575 192

CIP 380241.17
222
225
233
680 227

CIP 676070
187
186
175
548 183

CIP 573275
112
233
194
539 180

Signal 216
260
252
728 243

Recolta 73
72
90
235 78

Farmer 124
93
104
321 107

Granola 103
95
208
406 135

Ganza 149
208
229
586 195

Igorota 230
304
285
819 273

TOTAL 1803
2250
2116
6169 187

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
9567.697 4783.848

Treatment
10
109076.545 10907.655
7.08**
2.35
3.37

Error
20
30817.636 1540.882

TOTAL
32
149461.879
**= Highly significant Coefficient of Variation (%) = 21.00%
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

56
Appendix Table 9a. Weight of super extra-large tubers per plot (kg)

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
1.4
3.0
3.6
8
3.0

PHIL 5.19.2.2
4.0
3.1
3.1
10.2 3.0

CIP 380241.17
3.9
5.1
2.5
11.5 4.0

CIP 676070
3.0
3.0
3.3
9.3
3.0

CIP 573275
2.5
2.0
2.5
7
2.0

Signal
0.5
1.4
0.9
2.8
1.0

Recolta
0.1
0
0.1
0.2
0.0

Farmer
0
0
0
0
0.0

Granola
2.0
1.3
5.8
9.1
3.0

Ganza
3.0
3.7
3.8
10.5 4.0

Igorota
2.8
1.9
3.3
8
3.0

TOTAL
23.2
24.5
28.9
76.6
2.0

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
1.622
0.811

Treatment
10
55.768
5.577
5.98**
2.35
3.37

Error
20
18.644
0.932

TOTAL
32
76.035
**= Highly significant Coefficient of Variation (%) =15.9
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

57
Appendix Table 9b. Weight of extra large tubers per plot (kg)

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
3.5
2.0
3.7 9.2
3.07

PHIL 5.19.2.2
3.0
2.0
3.7
8.7
2.9

CIP 380241.17
2.9
3.75
4.0 10.65
3.55

CIP 676070
2.1
3.4
1.9 7.4
2.47

CIP 573275
2.0
2.3
2.75
7.05
2.35

Signal
1.8
2.75
1.4
5.95
1.98

Recolta
0.25
0.4
0.4
1.05
0.35

Farmer
0.1
0.2
0
0.3
0.1

Granola
1.9
2.0
1.6 5.5
1.83

Ganza
2.90
3.75
4.0 10.65
3.55

Igorota
3.5
5.5
3.6
12.6
4.2

TOTAL
23.95
28.05
27.05
79.05
2

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
0.831
0.415

Treatment
10
49.720
4.972
11.15**
2.35
3.37

Error
20
8.921
0.446

TOTAL
32
59.472
**= Highly significant Coefficient of Variation (%) = 27.88
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

58
Appendix Table 9c. Weight of big tubers per plot (kg)

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
1.5
1.9
1.6
5
1.67

PHIL 5.19.2.2
1.5
1.25
0.4
3.15
1.05

CIP 380241.17
1.75
1.25
1.75
4.75
1.58

CIP 676070
1.25
0.6
0.75
2.6
0.87

CIP 573275
1.7
2.1
1.25
5.05
1.68

Signal
1.75
2.0
2.6
6.35
2.12

Recolta
0.25
0.25
0.6
1.1
0.37

Farmer
1.0
0.75
0.75
2.5
0.83

Granola
0.25
0.5
1.5
2.25
0.75

Ganza
1.0
1.25
1.5
3.75
1.25

Igorota
1.6
1.75
1.4
4.75
1.58

TOTAL
13.55
13.6
14.1
41.25
1.25

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
0.017
0.008

Treatment
10
8.177
0.818
5.34**
2.35
3.37

Error
20
3.062
0.153

TOTAL
32
11.255
**= Highly significant Coefficient of Variation (%) =11.74
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

59
Appendix Table 9d. Weight of marble tubers per plot (kg)

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
0.15
0.25
0.25
0.65
0.22

PHIL 5.19.2.2
0.4
0.3
0.2
0.9
0.30

CIP 380241.17
0.25
0.25
0.4
0.9
0.30

CIP 676070
0.3
0.1
0.25
0.65
0.22

CIP 573275
0.1
0.6
0.25
0.95
0.32

Signal
0.75
1.0
1.0
2.75
0.92

Recolta
0.25
0.25
0.25
0.75
0.25

Farmer
0.3
0.25
0.6
1.15
0.38

Granola
0.2
0.1
0.35
0.65
0.22

Ganza
0.25
0.25
0.75
1.25
0.42

Igorota
0.6
0.4
0.6
1.6
0.53

TOTAL
3.55
3.75
4.9
12.2
0.37

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
0.097
0.048

Treatment
10
1.276
0.128
5.84**
2.35
3.37

Error
20
0.437
0.022

TOTAL
32
1.810
**= Highly significant Coefficient of Variation (%) =10.35
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

60
Appendix Table 9e. Weight of non-marketable tubers per plot (kg)

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
0.05
0.5
0.6
1.15
0.38

PHIL 5.19.2.2
1.1
0.15
0.15
1.4
0.47

CIP 380241.17
0.15
0.25
0.25
0.65
0.22

CIP 676070
0.25
0.02
0.02
0.29
0.10

CIP 573275
0.1
1.1
0.4
1.6
0.53

Signal
0.1
0.1
0.25
0.45
0.15

Recolta
0.1
0.15
0.1
0.35
0.12

Farmer
0.05
0.02
0.02
0.09
0.03

Granola
0.1
0.05
0.25
0.4
0.13

Ganza
0.25
0.4
0.6
1.25
0.42

Igorota
0.1
0.15
0.15
0.4
0.13

TOTAL
2.35
2.89
2.79
8.03
0.24

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
0.015
0.008

Treatment
10
0.901
0.090
1.26ns
2.35
3.37

Error
20
1.429
0.071

TOTAL
32
2.345
ns= Not significant Coefficient of Variation (%) =15.37
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

61
Appendix Table 10. Total weight of marketable tubers per plot (kg)

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
6.6
7.65
9.75
24
8.00

PHIL 5.19.2.2
10.0
10.3
5.35
25.65
8.55

CIP 380241.17
8.95
10.6
8.9
28.45
9.48

CIP 676070
6.9
7.12
6.17
20.19
6.73

CIP 573275
6.4
8.1
8.4
22.9
7.63

Signal
4.9
6.85
5.25
17
5.67

Recolta
0.95
1.05
2.1
4.1
1.37

Farmer
1.45
1.22
1.35
4.02
1.34

Granola
4.45
3.9
9.45
17.8
5.93

Ganza
7.45
8.85
11.6
27.9
9.30

Igorota
8.55
9.75
9.0
27.3
9.10

TOTAL
66.6
75.39
77.32
219.31
6.65

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
5.937
2.968

Treatment
10
255.146
25.515
10.07**
2.35
3.37

Error
20
50.658
2.533

TOTAL
32
311.741
**= Highly significant Coefficient of Variation (%) = 23.95
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

62
Appendix Table 11. Computed yield t ha-1

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
13.2
15.3
19.5 48
16.00

PHIL 5.19.2.2
20.0
20.6
10.7 51.3
17.10

CIP 380241.17
17.9
21.2
17.8 56.9
18.97

CIP 676070
13.8
14.4
12.34 40.54 13.51

CIP 573275
12.8
16.2
16.8 45.8
15.27

Signal
9.8
13.7
10.5 34
11.33

Recolta
1.9
2.1
4.2 8.2
2.73

Farmer
2.9
2.41
2.7 8.01
2.67

Granola
8.9
7.8
18.9 35.6
11.87

Ganza
14.9
17.7
23.2 55.8
18.60

Igorota
17.1
19.5
18.0 54.6
18.20

TOTAL 133.2
150.91
154.64
438.75
13.30

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
23.855
11.928

Treatment
10
1021.283
102.128
10.07**
2.35
3.37

Error
20
202.804
10.140

TOTAL
32
1247.943
**= Highly significant Coefficient of Variation (%) = 23.95
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

63
Appendix Table 12. Dry matter content of potato entries

BLOCK

ENTRY

TOTAL
MEAN
I II
III

PHIL 2.21.6.2
24
22
24 70 23

PHIL 5.19.2.2
18
22
24 64 21

CIP 380241.17
22
18
20 60 20

CIP 676070
20
18
18 56 19

CIP 573275
20
20
22 62 21

Signal
18
20
16 54 18

Recolta
16
14
20 50 17

Farmer
20
18
22 60 20

Granola
20
20
16 56 19

Ganza
20
18
22 60 20

Igorota
20
20
22 62 21

TOTAL 218
210
226
654
20

ANALYSIS OF VARIANCE

SOURCE OF DEGREES
SUM OF
MEAN
COMPUTED TABULATED
VARIATION
OF
SQUARES SQUARE
F
F
FREEDOM
0.05 0.01

Block
2
11.636
5.818

Treatment
10
96.242
9.624
2.43*
2.35
3.37

Error
20
79.909
3.952

TOTAL
32
*= Highly significant Coefficient of Variation (%) = 10.03
Growth and Yield Performance of Potato Entries
Under Bulalacao Mankayan Benguet Condition / Mark S. Omaney. 2010

Document Outline

Growth and Yield Performance of Potato Entries Under Bulalacao Mankayan Benguet Condition
- BIBLIOGRAPHY
- ABSTRACT
- TABLE OF CONTENTS
- INTRODUCTION
- REVIEW OF LITERATURE
- MATERIALS AND METHODS
- RESULTS AND DISCUSSION
- SUMMARY, CONCLUSIONS AND RECOMMENDATIONS
- LITERATURE CITED
- APPENDICES