BIBLIOGRAPHY BANGLIG, WILMA S. APRIL...

BIBLIOGRAPHY

BANGLIG, WILMA S. APRIL 2007. Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition. Benguet State University, La Trinidad, Benguet.
Adviser: Macario D. Cadatal, PhD
ABSTRACT

The study aimed to evaluate and compare fifteen entries of rice in terms of growth
and gain yields, and resistance to insect pest (stemborer) and disease (neck rot blast) and
determine which are suited to the conditions of BSU, La Trinidad, Benguet.

The different entries were: PSB Rc rice, IR rice and Pinidua selection.
Results showed that PR 34131-B-2-1 (5605.10 kg/ha) performed the best under
BSU, La Trinidad condition in terms of plant height, grain yields, panicle exertion,
spikelet fertility and resistance to insect pests (stem borer) and diseases (neck rot blast)
and lodging.

PR 27137-CR 153 (4513.90 kg/ha) and PR34110-B-3-1 (4017.90 kg/ha) can be
alternative to PR 34131-B-2-1 having obtained comparable grain yields and the other
agronomic characteristics.
PR 34131-B-2-1, PR 27137-CR 153 and PR-34110-B-3-1, therefore are highly
recommended under BSU, La Trinidad condition.

TABLE OF CONTENTS

Page
Bibliography……………………………………………………………………... i
Abstract …………………………………………………………………………..
i
Table of Contents ………………………………………………………………..
ii
INTRODUCTION ……………………………………………………………….
1
REVIEW OF RELATED LITERATURE ……………………………………….
2
MATERIALS AND METHODS ………………………………………………..
8
RESULTS AND DISCUSSION …………………………………………………
15
Seedling color ……………………………………………………….......
15
Seedling vigor …………………………………………………………...
15
Days from transplanting to heading ……………………………………..
16
Productive tillers …………………………………………………………
17
Panicle length ……………………………………………………………
17
Final plant height ………………………………………………………...
17
Panicle exertion ………………………………………………………….
18
Panicle threshability ……………………………………………………..
19
Spikelet fertility ………………………………………………………….
20
Lodging resistance ……………………………………………………...
21
Blast resistance ………………………………………………………….
22
Stemborer damage evaluation (white head) ……………………………..
22
Yield per plot ……………………………………………………...........
23
ii

Computed yield per hectare …………………………………………….
24
Weight of 1,000filled grains …………………………………………...
25
Meteorological data ……………………………………………………...
25
SUMMARY, CONCLUSION AND RECOMMENDATION…………………..
26
Summary…………………………………………………………………..
26
Conclusion…………………………………………………………….. ….
27
Recommendation…………………………………………………………
27
LITERATURE CITED …………………………………………………………..
28
APPENDICIES …………………………………………………………………..
30

iii

INTRODUCTION

Rice
(Oryza sativa L.) belongs to the family Graminae, which is an annual crop.
Genus Oryza can adapt to a wide range of ecological diversity from rain fed-dry land to
deep water flooded conditions. This crop is able to transport oxygen to the submerged
roots from leaves where oxygen is released thru photosynthesis (Catling, 1992).

Rice is the main cereal crop of the Filipino and a staple food of more than 80% of
the population, not only Philippines but in other Asian countries. Rice grains contain
protein, fats, carbohydrates and sufficient amount of vitamins. Aside from this, it is a
good source of flour; rice straw is also useful as a feed for animals, can be a culture bed
for mushrooms and as a fertilizer to maintain soil condition (UPLB, 1982).
Shortage of food supply is a major problem today because of continuous increase
in population while the production area is decreasing. In order to feed the population,
there should be remedies for farmers to increase yield as well as to increase income.
Selection and evaluation of high yielding varieties that have good eating quality, short
maturity, resistant to pest and diseases, good adaptability and resistant to drought and
flooding should be a continuing process.
This study was conducted to evaluate and compare the best promising rice entries
in terms of growth, grain yields and resistance to insect pest (stemborer) and disease
(neck rot blast) and determine which entries are best suited under BSU, La Trinidad
condition.
This study was conducted at the Benguet State University (BSU) Experimental
Farm, Cabanao, La Trinidad, Benguet from June 2005 to December 2005.

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La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

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REVIEW OF LITERATURE

Varietal Evaluation

A varietal evaluation on high yielding varieties of rice was conducted at
Tagudtod, Bagulin, La Union during the 1996 rainy season. Result show that PSB Rc 34
gave the highest number of tillers at maximum tillering stage and productive tillers. This
variety gave the highest yield and had a soft grain when cooked while PSB Rc 28 gave
the lowest yield (Itong, 1997).

A varietal trial conducted by Belino (2005) at Poblacion, Kibungan, Benguet
condition showed that SN – 73 obtained a mean yield of 3 t/ha, while Balinsanga and
PSB Rc 18 had 2.5 t/ha, respectively.

In the evaluation of eight varieties of rice in Bilis, Burgos, La Union, result
showed that PSB Rc 96 had both the highest number of productive tillers and highest
number of grains per panicle, hence had the highest grain per plot and per hectare,
followed by PSB Rc 44 (Batani, 2004).

NCT rice was tested at Baoy, Poblacion, Bakun, Benguet from December 1998 to
July 1999. Among the four varieties of National Cooperative Test rice tested, SN – 73
produced high yield followed by NCT 6, NCT 5 and PJ-2 had the lowest grain yield
(Berry, 1999).

Amonte (1999) evaluated high yielding varieties of rice at Masla, Mountain
Province. The result showed that NCT 5 out yielded the other varieties due to its high
harvest index and yield. However, Gohang performed better in terms of the number of
productive tillers, length of maturity, plant height, number of grain and filled grain per
panicle and total plant weight.

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Different high yielding varieties of rice were evaluated at Der-an, San Mateo,
Isabela. PSB Rc 10 performed best in terms of yield, number of grams per panicle and
number of productive tillers (Tegui-in, 1997).

Malondon (1997) reported that nine NCT entries were tested under BSU
condition. Among the entries tested, NCT – 8 performed the best and produced the
highest mean yield of 1.98 t/ha.

Under Cadtay, Kapangan, Benguet condition, Holanio (2001) found that PSB Rc
56 was the earliest to produced tillers, to produce heads and earliest to mature together
with PSB Rc 34, while Bayabas (check variety) had the least tillers.

According to Balaso (1998), among the six different high yielding varieties of rice
evaluated at Ekip, Bokod, Benguet. SN – 73 obtained the highest yield per plot. It was
also resistant to whorl maggot infestation while Bungabong was moderately susceptible.

Among the high yielding varieties of rice tested and evaluated at Kayapa, Nueva,
Viscaya condition, PSB Rc 58 and PSB Rc 54 were the first to recover at 10 days while
PR 27137-CR 153 (SN-73) and PSB Rc 46 ( Sumadel) were the latest with 13 days from
the time transplanting (Eliseo, 2001).

Five cultivars were tested in Antadao, Sagada, Mountain Province. As to the
result, Monay was the tallest with a mean height of 130.87 cm. while Kor-J was the
shortest with the length of 52.33 cm. Monay variety had the longest panicle, 34.14 cm,
and more resistant to rice and likewise had the highest yield (Salbino, 1997).

Chagwasi (1996) stated that the rate of recovery did not differ among the varieties
evaluated at tillering stage. It was also observed that all the varieties produced tillers 25
days after transplanting. PSB Rc 10 produced the highest number of tillers followed by
SM and IR-60. In terms of yield, PSB Rc 18 produced the highest yield.
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An evaluation conducted at Nalbuan, Baay- Licuan, Abra by Valera (2003),
showed that PSB Rc 46 had the highest number of productive tillers, longest length of
panicle and had the highest grain yield. Hybrid-mestiso had the highest weight of 1,000
filed grains and its yield is comparable to inbreed PSB Rc 46.

Another variety trial of high yielding varieties of rice was conducted in Tubo,
Abra. PSB Rc 74 was the first to ripen, had the longest panicle and had the highest
number of filled grains per panicle (Mateo, 2000).

Seven varieties of rice were evaluated at Kadayakan, Maria Aurora. Results
showed that NSIC Rc 110 was the earliest to mature and had the tallest plants among the
deferent varieties. However this NSIC 110 did not obtain the highest yield (Siteng, 2005).

Cayomba (2004) found out that PSB Rc 60 was resistant to lodging and stem
borer but not suited or adaptable as shown by their few number of grains per panicle and
low production per hectare under Manubo, Abra conditions.

Space and Depth of Planting

PhilRice (1992) reported that the rice spacing should be 20cm x 20 cm and 15cm
x 20 cm, depending on the variety to be planted, soil fertility and the season of planting.
However, too far spacing, lessen the plant population needed to produce maximum yield.
Transplant two or three seedlings per hill at a depth of two to three centimeters during the
wet season.

Effect of Pest and Diseases

In the Philippines, the diseases that causes serious damage to rice crop includes
rice blast, bacterial blight, rugged stunt and smut. The most important insect pest is the
brown plant hopper, leafhoppers and stemborer. Several outbreaks of the fungal disease,
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rugged stunt, rice blast, and brown plant hopper have occurred in recent years. Sheath
blight had also become a major disease problem, particularly for rice in the upland areas
(UPLB, 1983) as cited by Belino (2005).

Rice blast is the most important fungal disease of rice. It inflicts as much as 50%
loss in areas where severe outbreaks occur. This disease produces spots on the lesions on
leaves, nodes, and parts of the panicle and grains. Infected nodes turn black and break
easily. However, rice blast is controlled by planting resistant varieties integrated with
some cultural management procedures which include: raising seedlings in wetland
condition avoid excess nitrogen fertilization and split applications of fertilizers containing
nitrogen (UPLB, 1982).

Harvesting and Threshing
PhilRice (1993) as cited by Agungan (2000) started that when 80-85% of the
grains at the upper portion of the panicle are yellow or straw colored, and those at the
base are at the hard dough stage it is time to harvest.
In order to produce maximum yield of high milling quality, rice should be
harvested when moisture content of the grains of standing rice has dropped to 18-27%. At
that moisture, the grains in the lower heads are in the hard dough stage, while those in the
upper portion of the head are ripe (Martin and Leonard, 1975).
PhilRice (1993) cited that after harvesting, the rice is threshed immediately.
Threshing can be done manually or mechanically. The manual methods are threshing by
feet, frail threshing and beating against tubs; another is the “Hampasan Method” in which
harvested rice is beaten against a solid object.
PCARRD (1981) proposed that to reach the maximum rice yield with high milling
quality, rice grains are to be harvested 30 days after flowering or when at least, 80-95%
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of the grains of the middle portions of the panicle turn yellow.

Soil and Water Requirement
Soil that have clay content of 40-60%; a 2:1 type clay mineral, a medium organic
content that have degree of humification but not extensive drainage is good for rice. The
depth topsoil may vary from 18-22 cm (UPLB, 1960) as cited by Chagwasi (1996).
Irrigation will be done three days after transplanting at a depth of 2-3 cm if wet
bed seedlings and 1 cm. for “dapog” seedlings. At the initial stage of the vegetative
phase, water is increased from 3-10 cm. As the reproductive stage begins, the depth of 5-
10 cm. is maintained. Severe water stress causes high percentage of sterility, thereby
reducing grain yield (IRRI, 1986) as stated by Belino (2005).

Fertilizer Requirement
Navora (1997) concluded that application of 100% pure inorganic fertilizer would
give more income than fertilizer application. However, in terms of soil improvement and
conservation, organic fertilizer is still advisable to decrease acidity as cited by Agungan
(2000).
Sung-ag (1997) as cited by Agungan (2000) stated that the use of chicken manure,
pig manure and cow manure as source of organic fertilizer in HYV rice can be an
effective and efficient substitute with chemical fertilizers. Among these, chicken manure
was the best which favored growth and development of HYV rice resulting to increased
yields and has the highest return.

Effects of Temperature/ Moisture
Low temperature often causes low rice yields. An examination of rainfall patterns
of some upland rice growing areas using 200 mm/ month as the baseline, it appears that
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varieties that mature in less than 100 days would be desirable for the unimodal pattern. It
was found out in Bukidnon, Philippines that the rainfall pattern is also unimodal but
duration is longer and varieties that mature in 100-150 days should perform well (De
Datta, 1981).
Furthermore, he mentioned that temperature regime greatly influences not only
the growth durations but also the growth pattern of the rice plant. During the growing
seasons, the mean temperature, and the temperature sum, range distribution patterns, and
diurnal changes, and a combination of these, may be highly correlated with grain yields.

Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

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MATERIALS AND METHODS

Aside from the two Philippine Seed Board (PSB) varieties serving as a check, the
research used thirteen (13) different National Cooperative Test (NCT) entries of rice
which were assigned as treatments:

ENTRY RACE

PSB Rc 96 (check)
Indica
PSB Rc 46 (check)
Indica
IR 72509 – B-44-3-1-1
Indica
IR 72509- B- 55-3-3-1
Indica
IR 72507-B-16-1-1-2
Indica
PR 30756-2-2
Indica
PR 28703-2B-2
Japonica
PR 28669-2B-7
Japonica

Pinidua Selection Tropical
Japonica

PR 26383- 4B-1-1-20-5-3-2-1
Japonica

PR 29814-B-5-3-1-1
Japonica

PR 27981- M-1-1-3
Japonica

PR 34110-B-3-1
Japonica

PR 27137-CR 153 (SN-73)
Japonica

PR 34131- B-2-1
Japonica

The entries PSB Rc 96 and PSB Rc 46 (Philippine Seed Board Rice) are check
varieties. Pinidua selection is an entry which was selected twice by breeders at PhilRice.
All entries were acquired from PhilRice.
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Indica varieties are short or dwarf while Japonica varieties are tall.

Seed Bed and Land Preparation

Fifteen seedbeds were prepared for the fifteen different entries. One entry was
sown in each seedbed measuring 1m x 1m for each entry to avoid mixtures of the
different entries with necessary label placed for proper identification.

An experimental area of 432.0 square meters was prepared for the fifteen different
entries which were replicated three times. Each plot measures 1.6m x 6 m.

Before transplanting, the area was prepared thoroughly; the soil was puddled and
leveled for easy transplanting. The land was irrigated after it has been prepared to hasten
the decomposition of weeds. During the leveling and final harrowing, the required N-P-K
fertilizer at the rate of 60-30-30kg/ha was incorporated. Five days before panicle
initiation urea was top-dressed at the rate of 30-0-0 kg NPK per hectare.

Layout and Transplanting

After land preparation, the experimental plots were laid-out and labelled
accordingly. Seedlings were planted in the designated plots for each entry following the
Randomized complete Block Design (RCBD).

Each of the fifteen entries was planted at two seedlings per hill in a straight row
spaced at 20 cm x 20 cm between hills and rows.

Weeds, Insect Pests and Disease Control

Hand weeding was done when necessary after transplanting. Insect pests and
diseases were controlled and monitored to reduce economic losses. Other recommended
cultural management practices were followed to ensure better yield.
The data gathered were:
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A. Agronomic Characteristics

All ratings used were the rating scale by PhilRice (1996).
1. Seedling color. This was observed before the seedlings were transplanted using
this following scale:
SCALE DESCRIPTION (Seedlings)
1 Dark
Green
3 Light
Green
5 Yellow
7 Brown
9 Dead

2. Seedling vigor. This was taken before transplanting using the following scale:
SCALE DESCRIPTION
REMARKS
1
Majority of the seedlings have 5 or more leaves
Very Vigorous
with 2-3 tillers.
3
Majority of the seedlings have 1-5 leaves with 1-2
Vigorous
tillers
5
Most of the seedlings have 4 leaves without tiller
Normal
7
Most of the seedlings have 3-4 leaves without tiller
Weak
9
Most of the seedlings turned yellow and thin
Very Weak

3. Days from transplanting to heading. This was taken when 50% of the plants
produced heads as observed.
4. Productive tillers. The productive tillers produced was taken from ten random
sample hills per treatment a week before harvest. Only those that produced panicles were
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counted and considered.
5. Panicle length (cm). This was measured from the panicle base to the tip of the
panicle excluding the awn using 10 sample panicles taken at random at harvest.
6. Final plant height (cm). The final height of the plant was measured from the
soil surface to the tip of the tallest panicle excluding the awn.
7. Panicle exertion. This was taken using this scale as follows:

SCALE DESCRIPTION
REMARKS
1
Panicles are well exerted
well exerted
3
Panicles are moderately exerted
moderately exerted
5
Panicles are just exerted
Just exerted
7
Panicles are partly exerted
Partly exerted
9 Panicles
are
enclosed
Enclosed

8. Panicle threshability. This was recorded during harvest using the following
scale:

SCALE DESCRIPTION
REMARKS
1
Grains are difficult to thresh (less then 1%)
Difficult
3
Grains are moderately difficult to thresh (1-5%)
Moderately difficult
5
Grains are less difficult to thresh (6-25%)
Intermediate
7
Grains are easily thresh (26-50%)
Loose
9
Grains are very easy to thresh (51- 100 %)
Easy

9. Spikelet fertility. Spikelet fertility was taken using the following scale. Ten
panicles taken at random were examined as follows:
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SCALE DESCRIPTION
REMARKS
1
More than 80 % of the grains in a panicle are
Highly fertile
fertile
3
More than 61-80% of the grains in a panicle are
Moderately fertile
fertile
5
More than 41- 60 % of the grains in a panicle
Intermediate
are fertile
7
More than 11- 40% of the grains in a panicle are
Moderately Unfertile
fertile
9
Les than 11% of the gains in a panicle are fertile
Unfertile

10. Lodging resistance. Lodging incidence was recorded at two weeks after
heading and at maturity using the following scale:

SCALE DESCRIPTION
REMARKS
1
All plants are erect
Resistant
3
Plants are leaning at an angle of 700, about 70
Moderately resistant
% of the population are affected
5
Plants are leaning at an angle of 450, more
Intermediate
than 50% of the population are affected
7
Plants are leaning at an angle 300 , more than
Moderately susceptible
50% of the population are affected
9
All plants are fallen on the ground
Susceptible

11. Blast resistance (neck rot). Evaluation of the severity of rice blast was taken
from the plant at the center rows at hills 4-21. Ten sample hills were taken at random.
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Computation on percent infection was done using the formula (PhilRice, 1996).

% Infection = No. of panicle Infected x 100

Total number of Panicles

SCALE
DESCRIPTION
RATING
INDEX
1
0-5% are affected by blast
Resistant
2
6-25% are affected by blast
Intermediate
3
26% and above are affected by blast
Susceptible

12. Stemborer damage evaluation (white heads). Field rating was based on actual
number of panicles affected using the three middle rows of the plot as sampling area. Ten
sample hills were selected at random where white heads were counted ten days before
harvest. The following standard scale was used:

SCALE DESCRIPTION
RATING
1
1-5 White heads/10 sample hills
R
3
6-10 White heads/10 sample hills
MR
5
11-15 White heads/10 sample hills
I
7
16-25 White heads/10 sample hills
MS
9
25 and above
S

Where:
R
–
Resistant
I
–
Intermediate

MR – Moderately Resistant

MS – Moderately Susceptible
S
-
Susceptible

B. Yield

1. Yield per plot (6.72 sq.m) (kg). Grain yield per plot was taken after threshing
and drying at 14% moisture content (MC) then weighed.
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2. Computed yield per hectare (kg). This was taken by converting grain yield per
treatment into yield per hectare using ratio and proportion.
Yield/ ha = Yield per plot (kg) x x
6.72 sq m 10,000 sq m

3. Weight of 1,000 filled grain (kg). One thousand seeds selected at random after
free drying at about 14% moisture content were counted then weighed.
4. Yield per plant (kg). Yield of 4 hills after 5 days continuous sun drying. Plants
were cut from the soil surface then dried after which the whole plant shall be weighed,
grains and straw.

C. Meteorological data. The temperature, relative humidity (RH), total bright sunshine
and rainfall during the conduct of the study were obtained from BSU-PAG-ASA Office
based at BSU, La Trinidad, Benguet. The elevation of BSU, La Trinidad was also
obtained.

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RESULTS AND DISCUSSION

Seedling Color

Seedlings were observed before transplanting. It is shown in Table 1 that most of
the entries were dark green in color except PSB Rc 46 and PR 2703-2B-2 that were light
green in color.

Seedling Vigor

Table 1 shows the seedling vigor. It was observed that PSB Rc 96, IR 72509-B-
44-3-1-1 and IR 72507-B-16-1-1-2 were vigorous as compared with the other entries. On
the other hand PSB Rc 46, PR 34131-B-2-1 and PR 34110-B-3-1 were rated weak.

Table 1. Seedling color and seedling vigor of the different promising rice entries

ENTRY COLOR
VIGOR
PSB Rc 96 (check)
Dark green
Vigorous
P 46(check)
Light green
Weak
IR 72509 – B-44-3-1-1
Dark green
Vigorous
IR 72509-B-55-3-3-1
Dark green
Vigorous
IR 72507-B-16-1-1-2
Dark green
Normal
PR 30756-2-2
Dark green
Normal
PR 28703-2B-2
Light green
Normal
PR 8669-2B-7
Dark green
Normal
Pinidua Selection Dark
green
Normal
PR 26383-4B-1-1-20-5-3-2-1
Dark green
Normal
PR 29814-B-5-3-1-1
Dark green
Normal
PR 27981-M-1-1-3
Dark green
Normal
PR 34110-B-3-1
Dark green
Weak
PR 27137-CR 153 (SN-73)
Dark green
Normal
PR 34131-B-2-1
Dark green
Weak

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Days from Transplanting to Heading
Days
from
transplanting to heading of rice is shown in Table 3. Among the
promising entries, PR 30756-2-2 significantly produced heads earlier than the other
entries including the two check entries with a mean of 62 days. PR 30756-2-2 could be
classified as an early maturing variety which resulted to its early heading.

Table 2. Days from transplanting to heading and productive tillers of the different
promising rice entries

ENTRY DAYS
PRODUCTIVE
TILLERS
PSB Rc 96 (check)
77c
21a
PSB Rc 46 (check)
88h
13cde
IR 72509 – B-44-3-1-1
79d
15bed
IR 72509-B-55-3-3-1
85g
21a
IR 72507-B-16-1-1-2
82f
13cde
PR 30756-2-2
62a
6g
PR 28703-2B-2
70b
8fg
PR 8669-2B-7
82f
17b
Pinidua Selection 70b
12de
PR 26383-4B-1-1-20-5-3-2-1
80e
13cde
PR 29814-B-5-3-1-1
77c
14cd
PR 27981-M-1-1-3
93i
10ef
PR 34110-B-3-1
88h
12dc
PR 27137-CR 153 (SN-73)
82f
14cd
PR 34131-B-2-1
82f
16bc
CV (%)
1.16
12.03
Means with common letters are not significantly different at 5% level of significance
using DMRT

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Productive Tillers Per Hill

Table 2 shows the productive tillers per hill. Among the treatments, PSB Rc 96
and IR 72509-B-55-3-3-1 recorded the highest number of productive tillers per hill with
the same mean of 21, while PR 30756-2-2 recorded the least number of productive tillers
per hill with a mean of 6. Such significant differences among entries could be attributed
to their varietal characteristics.

Panicle Length

The length of panicle at harvest is shown in Table 3. Among the promising entries
evaluated, PR 2798-M-1-1-3, with a mean of 26.00 cm significantly had the longest
panicle among the promising rice entries including the two checks. PR 8669-2B-7 had the
shortest panicle with the mean of 17.60 cm. Such differences could be attributed by their
varietal characteristics.

Final Plant Height

Final plant height at harvest is shown in Table 3. Analysis shows that PR34110-
B-3-1 was significantly taller than the other promising entries including the two checks
with a mean of 112.70 cm. The shortest among the entries evaluated was IR 72507-B-16-
1-1-2 with a mean of 67.80 cm. Significant difference in height could be due to their
varietal characteristics.

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Table 3. Panicle length and final height of the different promising rice entries

ENTRY PANICLE
LENGHT
PLANT HEIGHT
(cm)
(cm)
PSB Rc 96 (check)
22.00bc
85.20e
PSB Rc 46 (check)
20.50cde
87.80de
IR 72509 – B-44-3-1-1
20.60cde
74.80f
IR 72509-B-55-3-3-1
19.50def
68.80g
IR 72507-B-16-1-1-2
19.50def
67.80g
PR 30756-2-2
18.20f
85.10e
PR 28703-2B-2
19.60def
100.90b
PR 8669-2B-7
17.60f
110.60a
Pinidua Selection 21.40bed
101.90b
PR 26383-4B-1-1-20-5-3-2-1
22.00bc
76.30f
PR 29814-B-5-3-1-1
23.00b
107.50a
PR 27981-M-1-1-3
26.00a
92.10cd
PR 34110-B-3-1
20.80cde
112.70a
PR 27137-CR 153 (SN-73)
18.80ef
93.90c
PR 34131-B-2-1
20.90cde
108.70a
CV (%)
5.83
3.24
Means with common letters are not significantly at 5% level of significance using DMRT

Panicle Exertion

Table 4 shows the panicle of the different entries. It was observed that PR 27137-
CR153 (SN-73) and PR 34131-B-2-1 were well exerted. On the other hand PSB Rc 46,
IR 72509-B-44-3-1-1, IR 72509-B-55-3-3-1, IR 72507-B-16-1-1-2 and PR 26383-4B-1-
1-20-5-3-2-1 were enclosed. Panicle exertion characteristics may have differences on the
number of grains in a panicle and important in harvesting most especially on manual
harvesting that well exerted is recommendable for those practicing “ani” system in
harvesting. Differences could be attributed to their varietal characteristics.
Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

19
Table 4. Panicle exertion of the different promising rice entries
ENTRY PANICLE
EXERTION
PSB Rc 96 (check)
Partly exerted
PSB Rc 46 (check)
Enclosed
IR 72509 – B-44-3-1-1
Enclosed
IR 72509-B-55-3-3-1
Enclosed
IR 72507-B-16-1-1-2
Enclosed
PR 30756-2-2
Partly exerted
PR 28703-2B-2
Well exerted
PR 8669-2B-7
Moderately exerted
Pinidua Selection Just
exerted
PR 26383-4B-1-1-20-5-3-2-1
Enclosed
PR 29814-B-5-3-1-1
Moderately exerted
PR 27981-M-1-1-3
Moderately exerted
PR 34110-B-3-1
Moderately exerted
PR 27137-CR 153 (SN-73)
Well exerted
PR 34131-B-2-1
Well exerted

Panicle Threshability

Panicle threshability was based on seed shattering during threshing as shown in
Table 5. It was observed that Indica varieties were loose while Japonica varieties were
characteristically difficult to thresh. Non-shattering varieties are preferred by farmers
who practice the “ani” system of harvesting and those who practice the use of mortar and
pestle as a way of producing milled rice. Variation in the threshability could be attributed
to their varietal characteristics.

Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

20
Table 5. Panicle threshability of the different promising rice entries
ENTRY PANICLE
THRESHABILITY
PSB Rc 96 (check)
Loose
PSB Rc 46 (check)
Loose
IR 72509 – B-44-3-1-1
Loose
IR 72509-B-55-3-3-1
Loose
IR 72507-B-16-1-1-2
Loose
PR 30756-2-2
Loose
PR28703-2B-2
Moderately difficult
PR8669-2B-7
Moderately difficult
Pinidua Selection
Moderately difficult
PR 26383-4B-1-1-20-5-3-2-1
Moderately difficult
PR 29814-B-5-3-1-1
Moderately difficult
PR 27981-M-1-1-3
Moderately difficult
PR 34110-B-3-1
Moderately difficult
PR 27137-CR 153 (SN-73)
Intermediate
PR 34131-B-2-1
Intermediate

Spikelet Fertility

Table 6 shows that PR 26383-4B-1-120-5-3-2-1, PR 27981-B-1-1-3 PR 34110-B-
3-1, PR 27137-CR 153 (SN-73) and IR 34131-B-2-1 were highly fertile. It was observed
that PSB Rc 96, PSB Rc 46, Pinidua Selection, IR 72509-B-55-3-3-1, IR 72507-B-16-1-
1-2 and PR 30756-2-2 were unfertile. The rest of the entries are either moderately
unfertile to intermediate. Fertility of rice could be affected by the environment
particularly temperature during the conduct of the study. Temperature affects the plant at
all stages of growth especially during the stage of panicle initiation. Temperature lower
than 17oC during panicle initiation stage will cause severe spikelet sterility (UPLB,
1983).
Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

21

IRRI (1983) stated that the percentage of filled spikelets of a rice crop is affected
by such factors as climate, soil, variety, and nitrogen fertilization. Low percentages of
filled spikelets usually indicate adverse climates at the reduction division stage, at
flowering and during the ripening period.

Lodging Resistance

Lodging resistance was recorded two weeks after heading and at maturity. It was
observed that most of the entries were resistant to lodging except PR 29814-B-5-3-1-1
and PR 34131-B-2-1 which were moderately resistant to lodging.

Table 6. Spikelet fertility of the different promising rice entries
ENTRY SPIKELET
FERTILITY
PSB Rc 96 (check)
Unfertile
PSB Rc 46 (check)
Unfertile
IR 72509 – B-44-3-1-1
Moderately unfertile
IR 72509-B-55-3-3-1
Unfertile
IR 72507-B-16-1-1-2
Unfertile
PR 30756-2-2
Unfertile
PR 28703-2B-2
Moderately unfertile
PR 8669-2B-7
Moderately unfertile
Pinidua Selection Unfertile
PR 26383-4B-1-1-20-5-3-2-1
Highly fertile
PR 29814-B-5-3-1-1
Intermediate
PR 27981-M-1-1-3
Highly fertile
PR 34110-B-3-1
Highly fertile
PR 27137-CR 153
Highly fertile
PR 34131-B-2-1
Highly fertile

Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

22
Blast Resistance (Neck rot)

Table 7 shows the blast resistance of the different promising rice entries. It was
observed that most of the promising entries are resistant with one intermediate (PR 2703-
2B-2), one moderately susceptible (IR 72507-B-16-1-1-2) and one susceptible (PR
30756-2-2) compared to the two checks which are both moderately susceptible.
Resistance to blast, a major disease concern among Cordillera rice farmers, is a major
consideration in developing rice varieties for the cool elevated areas of Cordillera.

Stemborer Damage Evaluation (white heads)

Stemborer damage evaluation was observed ten days before harvest. It was
observed that no occurrence of stemborer in all the entries evaluated.

Table 7. Blast resistance (Neck rot) of the different promising rice entries

ENTRY RESISTANCE
RATING
PSB Rc 96 (check)
Moderately Susceptible
PSB Rc 46 (check)
Moderately Susceptible
IR 72509 – B-44-3-1-1
Resistant
IR 72509-B-55-3-3-1
Resistant
IR 72507-B-16-1-1-2
Moderately Susceptible
PR 30756-2-2
Susceptible
PR 28703-2B-2
Intermediate
PR 8669-2B-7
Resistant
Pinidua Selection Resistant
PR 26383-4B-1-1-20-5-3-2-1
Resistant
PR 29814-B-5-3-1-1
Resistant
PR 27981-M-1-1-3
Resistant
PR 34110-B-3-1
Resistant
PR 27137-CR 153 (SN-73)
Resistant
PR 34131-B-2-1
Resistant
Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

23
Yield Per Plot (6.72 sq m) (kg)

Yield per plot was taken by winnowing the grain after drying at approximately
14% moisture content to separate unfilled grains and other debris then weighed. Table 8
shows that PR 34131-B-2-1 significantly obtained the highest grain yield with a mean of
3.80 kg but comparable to PR 27137-CR 153 (SN-73) and PR 34110-B-3-1 with mean of
3.03 kg and 2.70 kg, respectively. This is because of varietal differences such as number
of productive tillers, length of panicles, and spikelet fertility.

Table 8. Yield per plot and computed yield per hectare of the different promising rice
entries

ENTRY
YIELD PER PLOT
COMPUTED YIELD PER
HECTARE
(kg/6.72 sq.m)
(kg/ha)
PSB Rc 96 (check)
0.22d
327.40d
PSB Rc 46 (check)
0.23d
342.30d
IR 72509 – B-44-3-1-1
0.70d
685.50d
IR 72509-B-55-3-3-1
1.20cd
1780.80cd
IR 72507-B-16-1-1-2
0.22d
327.40d
PR 30756-2-2
0.14d
213.30d
PR 28703-2B-2
1.67bcd
2485.10bcd
PR 8669-2B-7
1.93cd
2877.00bcd
Pinidua Selection 0.30d
451.40d
PR 26383-4B-1-1-20-5-3-2-1
0.50d
709.30d
PR 29814-B-5-3-1-1
1.60bcd
2381.00bcd
PR 27981-M-1-1-3
1.60bcd
2351.20bcd
PR 34110-B-3-1
2.70abc
4017.90abc
PR 27137-CR 153 (SN-73)
3.03ab
4513.90ab
PR 34131-B-2-1
3.80a
5605.10a
CV (%)
19.14
27.09
Means with common letters are not significantly different at 5% level of significance
using DMRT
Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

24
Computed Yield Per Hectare

Table 8 also shows the computed yield per hectare of the different promising
entries. Results followed the same pattern in the grain yield per plot.

Table 9. Weight of 1,000 filled grains of the different promising rice entries
ENTRY
WT. OF 1,000 FILLED GRAINS
(g)
PSB Rc 96 (check)
26ab
PSB Rc 46 (check)
24bc
IR 72509 – B-44-3-1-1
23bc
IR 72509-B-55-3-3-1
31a
IR 72507-B-16-1-1-2
19c
PR 30756-2-2
24bc
PR 28703-2B-2
21bc
PR 8669-2B-7
25abc
Pinidua Selection 22bc
PR 26383-4B-1-1-20-5-3-2-1
27ab
PR 29814-B-5-3-1-1
27ab
PR 27981-M-1-1-3
24bc
PR 34110-B-3-1
23bc
PR 27137-CR 153 (SN-73)
26ab
PR 34131-B-2-1
26ab
CV (%)
13.89
Means with common letters are not significantly different at 5% level of significance
using DMRT

Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

25
Weight of 1,000 Filled Grains

The weight of 1,000 filled grains is shown in Table 9. Among the fifteen entries
evaluated, it was observed that IR 72509-B-55-3-31 with a mean of 31g gave the highest
weight of 1,000 filled grains which is significantly different with other entries. IR 72507-
B-16-1-1-2 obtained the lowest weight of 1,000 filled grains with a mean of 19g.

Meteorological Data

Mean monthly temperature, sunshine duration, relative humidity, and rainfall
throughout the conduct of the study are shown in Table 10.

Maximum temperature (24.0) was highest during the month of June, while, the
minimum temperature (14.6) was lowest in the month of December.

Total bright sunshine ranged from 298.2 to 180.0 minutes. Relative humidity
ranged from 79 to 88%, minimum rainfall amount occurred from November to
December.

Table 10. Meteological data gathered during the conduct of the study

TEMPERATU
RH
TOTAL RAINFALL
TOTAL LIGHT
MONTH
(0C)
(%)
AMOUNT
DURATION
MAX MIN
(mm)
(min.)
JUNE 24.0
18.4
85
16.3
228.4
JULY 23.4
17.2
84
12.9
264.1
AUGUST 22.8
17.2
88
23.7
144.7
SEPTEMBER 22.6 17.1
87
22.6
180.0
OCTOBER 23.3
16.0
81
8.2
298.2
NOVEMBER 23.6 15.6
80
1.5
322.8
DECEMBER 22.5 14.6
79
1.6
242.3

Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

26
SUMMARY, CONCLUSION AND RECOMMENDATION

Summary

Thirteen NCT entries which were supposed to be high yielding entries of rice and
two PSB varieties serving as checks were planted and evaluated at BSU experimental
area, La Trinidad, Benguet from June 2005 to December 2005. There were three IR
entries, nine PR entries and a Pinidua Selection by PhilRice and two check varieties
(PSB Rc 46 and PSB Rc 96).

The study aimed to evaluate and compare the best promising rice entries in terms
of growth, grain yields and resistance to insect pest (stemborer) and disease (neck rot
blast) and to determine which entries are best suited under BSU, La Trinidad condition.
Seedling color was observed before transplanting, all the entries were dark green
except PSB Rc 46 and IR 72507-B-16-1-1-2 which were light green in color.
As to vigor it was observed that most of the entries were normal and vigorous except PR
34131-B-2-1, PR 34110-B-3-1 and PSB Rc 46 which were weak.

PR 30756-2-2 was the earliest to produce panicles, however it was susceptible to
blast that resulted to low yield. IR 72509-B-55-3-3-1 had produced the highest number of
productive tillers.

The panicle length at the time of harvest showed that PR 27981-M-1-1-3 had the
longest with a mean of 26.0 cm compared to PR 30756-2-2 which had the shortest
panicle length of 18.20 cm. PR 34110-B-3-1 was the tallest among the entries with a
mean height of 112.70 cm compared to IR 72507-B-16-1-1-2 which was the shortest
(67.80 cm).

The computed yield per hectare showed that PR 34131-B-2-1 had the highest
production of 5,605.10 kg per hectare. The same entry had good characteristics of well
Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

27
exerted panicle, fertile spikelet, resistant to insert pest (stemborer), disease (neck rot
blast) and lodging.

All the entries evaluated were resistant to stem borer and lodging.

Conclusion

Based on the results, PR 34131-B-2-1 performed best under La Trinidad condition
in terms of height, grain yields, panicle exertion, spikelet fertility and resistance to insect
pest (stemborer) and disease (neck rot blast) and lodging.

Recommendation

In view of the foregoing statements, PR 34131-B-2-1 is highly recommended
under La Trinidad condition.

PR 30756-2-2 is not recommendable to farmers because of it’s susceptibility to
blast although an early maturing entry.

PR 27137-CR 153 and PR 34110-B-3-1 are also recommended as alternative to
PR 34131-B-2-1 because they are comparable in grain yield and the other agronomic
characteristics.

Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

28
LITERATURE CITED

AGUNGAN, D. 2000. Evaluation of high yielding varieties of rice in Bitnong, Dupax del
Norte, Nueva Vizcaya condition. BS Thesis. BSU, La Trinidad, Benguet. Pp. 10,
19.

AMONTE, L. 1999. Evaluation of pre -released NCT rice under Masala, Tadian,
Mountain Province condition. BS Thesis. BSU, La Trinidad, Benguet. P. 20

BALASO, E. 1998. Varietal evaluation of high yielding varieties of rice under Ekip,
Bokod, Benguet condition. BS Thesis. BSU, La Trinidad, Benguet. P. 30.

BATANI, E. 2004. Evaluation of high yielding varieties of rice under Bilis, Burgos, La
Union condition. BS Thesis. BSU, La Trinidad, Benguet. P. 30.

BELINO, M. 2005. Evaluation of high yielding varieties of rice under Poblacion,
Kibungan, Benguet condition. BS Thesis. BSU, La Trinidad, Benguet. Pp.22, 7, 5.

BERRY, E. 1999. Evaluation of National Cooperative Test (NCT) rice under Baoy,
Bakun, Benguet condition. BS Thesis. BSU, La Trinidad, Benguet. P.34.

CATLING, D. 1992. Rice in deep water. The Macmillan Press .L.T.D.London and
Basingstoke. Pp.9-10,17.

CAYOMBA, E. 2004. Evaluation of high yielding varieties of rice under Manabo, Abra
condition. BS Thesis. BSU, La Trinidad, Benguet. P.31.

CHAGWASI, M. 1996. Yield evaluation of rice HYV's under Tabuk, Kalinga condition.
BS Thesis. BSU, La Trinidad, Benguet. Pp. 29, 5.

DE DATTA, S.K. 1981. Principles and practices of rice production. The International
Rice Research Institute, Los Ba¤os, Laguna. Pp. 297-298.

ELISEO, F. 2001. Evaluation of high yielding varieties of rice under Kayapa, Nueva
Vizcaya condition. BS Thesis. BSU, La Trinidad, Benguet. P. 25.

HOLANIO, M. 2001. Evaluation of high yielding varieties (HYV's) of rice in Cadtay,
Kapangan, Benguet condition. BS Thesis. BSU, La Trinidad, Benguet. P.28.

IRRI, 1987. Weather and rice, Los Baños, Laguna, Philippines. p 58.

IRRI, 1983. Potential Productivity of Field Crops Under Different Environments. Los
Baños, Laguna, Philippines. Pp. 112-121.

ITONG, E. 1997. Varietal evaluation of high yielding varieties of rice under Tagud-tod,
La Union condition. BS Thesis. BSU, La Trinidad, Benguet. P.33.
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La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

29
MALONDON, J. 1997. Performance of National Cooperative Testing rice under Benguet
State University, La Trinidad, Benguet condition. BS Thesis. BSU, La Trinidad,
Benguet. P. 28-29.

MARTIN, J.H. and W.H. Leonard.1975.Principles of field crop production. 3rd ed. New
York, Macmillan Company. Pp.25-30.

MATEO, J. 2000, Growth and yield performance of high yielding varieties of rice under
Tubo, Abra condition BS Thesis. BSU, La Trinidad, Benguet. P. 39.

PCARRD, 1981. Palawan technoguide on rice. P.7.

PHILRICE. 1992. Rice production technoguide. Second Edition. UPLB Philrice, Los
Baños, Laguna. P.18.

PHILRICE. 1993. Rice production technoguide. P. 10, 136.

PHILRICE. 1996. Rice production technoguide. Pp. 37-42.

SALBINO, A. Jr.,1997. Varietal evaluation of high yielding varieties of rice in Antadao,
Sagada, Mountain Province condition. BS Thesis. BSU, La Trinidad, Benguet.
P. 27.

SITENG, B. 2005. Performance of high yielding varieties of rice under Kadayakan,
Maria Aurara condition. BS Thesis. BSU, La Trinidad, Benguet. P. 25.

TEGUI-IN, R.A.1997. Varietal evaluation of high yielding varieties of rice in Der-am,
San Mateo, Isabela. BS Thesis. BSU, La Trinidad, Benguet. Pp.2, 26-29.

UPLB. 1982. Rice production manual. University of the Philippines, Los Banos, Laguna,
P. 29.

VALERA, G. 2003. Evaluation of hybrid rice in Nalbuan, Baay-licuan, Abra condition.
BS Thesis . BSU, La Trinidad, Benguet. P. 26.

Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

30
APPENDICES

Appendix 1. Days from transplanting to heading of the different promising rice entries

BLOCK

TREATMENT
I
II
III
TOTAL MEAN
PSB Rc 96 (check)
77
77
77
231
77
PSB Rc 46 (check)
88
88
88
264
88
IR 72509 – B-44-3-1-1
79
79
79
237
79
IR 72509-B-55-3-3-1
85
85
85
255
85
IR 72507-B-16-1-1-2
83
83
83
245
82
PR 30756-2-2
62
62
62
186
62
PR 28703-2B-2
70
70
70
210
70
PR 8669-2B-7
83
83
83
245
82
Pinidua Selection 70
70
70
210
70
PR 26383-4B-1-1-20-5-3-2-1
81
81
81
241
80
PR 29814-B-5-3-1-1
77
77
77
231
77
PR 27981-M-1-1-3
93
93
93
279
93
PR 34110-B-3-1
88
88
88
264
88
PR 27137-CR 153 (SN-73)
81
81
81
247
82
PR 34131-B-2-1
83
83
83
247
82
TOTAL 1200
1200
1200
3600
80

ANALYSIS OF VARIANCE

SOURCE OF
DEGREE
SUM. OF
COMPUTED

VARIANCE
OF
SQUARES
F
TABULAR F
FREEDOM
0.05 0.01
Treatment 14
2.643.244
188.803
221.91**
2.06
Block 2
2.511
2.756

2.80
Error 28
23.822
0.851

TOTAL 44
2672.578

** Highly significant

CV = 1.16
Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

31
Appendix 2. Productive tillers per hill of the different promising rice entries

BLOCK

TREATMENT
I
II
III
TOTAL MEAN
PSB Rc 96 (check)
21
23
20
64
21
PSB Rc 46 (check)
12
14
14
40
13
IR 72509 – B-44-3-1-1
14
15
17
46
15
IR 72509-B-55-3-3-1
20
21
21
62
21
IR 72507-B-16-1-1-2
13
13
13
39
13
PR 30756-2-2
5
6
7
18
68
PR 28703-2B-2
7
10
6
23
8
PR 8669-2B-7
16
14
21
51
17
Pinidua Selection 11
10
15
26
12
PR 26383-4B-1-1-20-5-3-2-1
12
14
13
39
13
PR 29814-B-5-3-1-1
15
14
14
43
14
PR 27981-M-1-1-3
9
11
9
29
10
PR 34110-B-3-1
10
12
13
35
12
PR 27137-CR 153 (SN-73)
13
13
15
41
14
PR 34131-B-2-1
18
17
14
49
16
TOTAL 196
207
212
605
18

ANALYSIS OF VARIANCE

SOURCE OF
DEGREE
SUM. OF
COMPUTED

VARIANCE
OF
SQUARES
F
TABULAR F
FREEDOM
0.05 0.01
Treatment 14
743.33
19.63**
2.06
2.80
Block 2
8.933

Error 28
75.733

TOTAL 44
828.000

** Highly significant

CV% = 12.03

Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

32
Appendix 3. Panicle length (cm) of the different promising rice entries

BLOCK

TREATMENT
I
II
III
TOTAL MEAN
PSB Rc 96 (check)
21.60
22.00
22.70
66.30
22.00
PSB Rc 46 (check)
20.10
20.30
21.20
61.60
20.50
IR 72509 – B-44-3-1-1
21.40
22.00
18.30
61.70
20.60
IR 72509-B-55-3-3-1
19.70
19.60
19.10
58.40
19.50
IR 72507-B-16-1-1-2
19.10
19.90
19.30
58.30
19.50
PR 30756-2-2
18.80
17.60
18.20
54.60
18.20
PR 28703-2B-2
20.30
19.80
18.80
58.90
19.60
PR 8669-2B-7
18.50
16.00
18.20
52.70
17.60
Pinidua Selection 21.30
21.30
21.50
64.10
21.40
PR 26383-4B-1-1-20-5-3-2-1
19.60
21.60
24.80
66.00
22.00
PR 29814-B-5-3-1-1
23.30
23.20
22.50
69.00
23.00
PR 27981-M-1-1-3
25.80
25.80
26.50
78.10
26.00
PR 34110-B-3-1
20.50
21.20
20.70
62.40
20.80
PR 27137-CR 153 (SN-73)
18.80
18.50
19.10
56.40
18.80
PR 34131-B-2-1
23.50
20.20
19.00
62.70
20.90
TOTAL 312.30
309.00
309.90
931.20
20.70

ANALYSIS OF VARIANCE

SOURCE OF
DEGREE
SUM. OF
MOS
COMPUTED
VARIANCE
OF
SQUARES
F TABULAR
F
FREEDOM
0.05 0.01
Treatment 14
185.595
13.257
9.11**
2.06
2.80
Block 2
0.388
0.194

Error 28
40.765
1.456

TOTAL 44
226.748

** Highly significant

CV = 1.83%

Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

33
Appendix 4. Final plant height (cm) of the different promising rice entries

BLOCK

TREATMENT
I
II
III TOTAL MEAN
PSB Rc 96 (check)
84.70
85.20
85.60
255.50
85.20
PSB Rc 46 (check)
88.40
87.20
87.70
263.30
87.80
IR 72509 – B-44-3-1-1
76.00
73.60
74.90
224.50
74.80
IR 72509-B-55-3-3-1
68.70
69.30
68.30
206.30
68.80
IR 72507-B-16-1-1-2
67.40
67.50
68.40
203.30
67.80
PR 30756-2-2
85.00
85.40
85.00
255.40
85.10
PR 28703-2B-2
96.10
101.60
103.60
301.30 100.90
PR 8669-2B-7
110.40
114.00
107.30
331.70 110.60
Pinidua Selection 100.20
102.90
102.50
305.60 101.90
PR 26383-4B-1-1-20-5-3-2-1
71.40
85.10
72.30
228.80
76.30
PR 29814-B-5-3-1-1
104.90
107.20
110.30
322.40 107.50
PR 27981-M-1-1-3
96.70
95.60
94.10
276.40
92.10
PR 34110-B-3-1
112.60
113.30
112.30
338.20 112.70
PR 27137-CR 153 (SN-73)
87.60
94.20
93.90
281.70
93.90
PR 34131-B-2-1
106.60
110.30
109.10
326.00 108.70
TOTAL 1356.70
1392.40
1375.30
4120.40
91.57

ANALYSIS OF VARIANCE

SOURCE OF
DEGREE
SUM. OF
MOS
COMPUTED
VARIANCE
OF
SQUARES
F TABULAR
F
FREEDOM
0.05 0.01
Treatment 14
9726.360
694.740
7851**
2.06
2.80
Block 2
75.610
37.805

Error 28
247.158
8.827

TOTAL 44
10047.128

** Highly significant

CV = 7.46%

Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

34
Appendix 5. Yield per plot (kg) of the different promising rice entries

BLOCK

TREATMENT
I
II
III
TOTAL MEAN
PSB Rc 96 (check)
0.32
0.22
0.12
0.66
0.22
PSB Rc 46 (check)
0.36
0.13
0.20
0.69
0.23
IR 72509 – B-44-3-1-1
0.72
0.90
0.41
2.03
0.70
IR 72509-B-55-3-3-1
1.90
0.79
0.90
3.59
1.20
IR 72507-B-16-1-1-2
0.40
0.15
0.11
0.66
0.22
PR 30756-2-2
0.18
0.10
0.15
0.43
0.14
PR 28703-2B-2
2.10
1.58
1.33
5.01
1.67
PR 8669-2B-7
1.80
2.50
1.50
5.80
1.93
Pinidua Selection 0.41
0.32
0.18
0.91
3.30
PR 26383-4B-1-1-20-5-3-2-1
0.64
0.38
0.41
1.43
0.50
PR 29814-B-5-3-1-1
1.70
1.70
1.40
4.80
1.60
PR 27981-M-1-1-3
1.74
2.00
1.00
4.74
1.60
PR 34110-B-3-1
2.70
2.70
2.70
8.10
2.70
PR 27137-CR 153 (SN-73)
2.80
3.10
3.20
9.10
3.03
PR 34131-B-2-1
1.40
2.40
7.50
11.30
3.80
TOTAL 19.17
18.97
21.11
59.25
19.75

ANALYSIS OF VARIANCE

SOURCE OF
DEGREE
SUM. OF
MOS
COMPUTED
VARIANCE
OF
SQUARES
F TABULAR
F
FREEDOM
0.05 0.01
Treatment 14
55.911
3.994
4.70**
2.06
2.80
Block 2
0.186
0.093

Error 28
23.779
0.849

TOTAL 44
79.877

** Highly significant

CV = 19.14%

Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

35
Appendix 6. Computed yield per hectare (kg) of the different promising rice entries

BLOCK

TREATMENT
I
II
III
TOTAL MEAN
PSB Rc 96 (check)
476.20
327.40
178.60
982.20
327.40
PSB Rc 46 (check)
535.70
193.50
297.60
1026.80
342.30
IR 72509 – B-44-3-1-1
107.10
1339.30
610.10
2056.50
685.50
IR 72509-B-55-3-3-1
2827.40
1175.60
1339.30
5342.30 1780.80
IR 72507-B-16-1-1-2
595.20
223.20
163.70
982.10
327.40
PR 30756-2-2
267.90
148.80
223.20
639.90
213.30
PR 28703-2B-2
3125.00
2851.20
1979.20
7455.40 2485.10
PR 8669-2B-7
2678.60
3720.20
2232.10
8630.90 2877.00
Pinidua Selection 610.10
476.20
267.90
1354.00
451.40
PR 26383-4B-1-1-20-5-3-2-1
952.40
565.50
610.10
2128.00
709.30
PR 29814-B-5-3-1-1
2529.80
2529.80
2083.30
7142.90 2381.00
PR 27981-M-1-1-3
2589.30
2976.20
1488.10
7053.60 2351.20
PR 34110-B-3-1
4017.90
4017.90
4017.90 12053.70 4017.90
PR 27137-CR 153 (SN-73)
4166.70
4613.10
4761.90 13541.70 4513.90
PR 34131-B-2-1
2083.30
3571.40
11160.70 16815.40 5605.10
TOTAL 23395.00
28229.30
31413.70
80152.00
1937.91

ANALYSIS OF VARIANCE

SOURCE OF
DEGREE
SUM. OF
MOS
COMPUTED
VARIANCE
OF
SQUARES
F TABULAR
F
FREEDOM
0.05 0.01
Treatment 14
9726.360
694.740
7851**
2.06
2.80
Block 2
75.610
37.805

Error 28
247.158
8.827

TOTAL 44
10047.128

** Highly significant

CV = 27.09%

Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

36
Appendix 7. Weight of 1,000 filled grains (g) of the different promising rice entries

BLOCK

TREATMENT
I
II
III
TOTAL MEAN
PSB Rc 96 (check)
18
29
31
78
26
PSB Rc 46 (check)
25
23
23
71
24
IR 72509 – B-44-3-1-1
23
21
24
68
23
IR 72509-B-55-3-3-1
30
30
32
92
31
IR 72507-B-16-1-1-2
21
24
12
57
19
PR 30756-2-2
23
23
26
72
24
PR 28703-2B-2
22
21
20
63
21
PR 8669-2B-7
28
23
25
76
25
Pinidua Selection 23
26
18
67
22
PR 26383-4B-1-1-20-5-3-2-1
30
24
27
81
27
PR 29814-B-5-3-1-1
29
24
29
82
27
PR 27981-M-1-1-3
22
26
24
72
24
PR 34110-B-3-1
24
24
21
69
23
PR 27137-CR 153 (SN-73)
26
27
24
78
26
PR 34131-B-2-1
26
22
30
78
26
TOTAL 371
367
366
1104
25

ANALYSIS OF VARIANCE

SOURCE OF
DEGREE
SUM. OF
MOS
COMPUTED
VARIANCE
OF
SQUARES
F TABULAR
F
FREEDOM
0.05 0.01
Treatment 14
9726.360
694.740
7851**
2.06
2.80
Block 2
75.610
37.805

Error 28
247.158
8.827

TOTAL 44
10047.128

** Highly significant

CV = 13.89%

Evaluation of Promising Rice Entries under
La Trinidad, Benguet Condition / Wilma S. Banglig. 2007

Document Outline

Evaluation of Promising Rice Entries under La Trinidad, Benguet Condition.
- BIBLIOGRAPHY
- ABSTRACT
- TABLE OF CONTENTS
- INTRODUCTION
- REVIEW OF LITERATURE
- MATERIALS AND METHODS
- RESULTS AND DISCUSSION
- SUMMARY, CONCLUSION AND RECOMMENDATION
- LITERATURE CITED
- APPENDICES