BIBLIOGRAPHY BINWAG, JOVELYN Y. APRIL...
BIBLIOGRAPHY
BINWAG, JOVELYN Y. APRIL 2013. Performance of Selected Bush Snap Bean
Varieties under Organic Production System. Benguet State University, La Trinidad,
Benguet.
Adviser: Alfredo C. Tipayno, Ph.D.
ABSTRACT
This thesis was conducted to evaluate the yield performance of the five bush bean
varieties. Specifically, it aimed to determine the growth, yield and profitability of growing
bush snap bean under organic farming system.
The results of the study revealed that ‘Contender’ had the least number of days to
germinate. ‘China 804’ obtained the heaviest marketable pods ‘China 804’ led on the
computed marketable yield per plot with a mean of 6.17 kg/ 5m2 followed by ‘Sablan’
(5.16 kg/ 5 m2), ‘Contender’ (4.73 kg/ 5 m2), ‘Bokod’ (3.87 kg/ 5m2) and the lowest is the
‘French bean’ (3.63 kg/ 5 m2).
As to profitability, ‘French bean’ obtained the highest return on investment (ROI)
of 90.06% or PhP 0.90 for every peso invested in the production followed by ‘China 804’
(71.24%), ‘Sablan’ (43.38%), ‘Contender’ (35.53%) and ‘Bokod bean’ (12.93%).
Performance of Selected Bush Snap Bean Varieties under Organic Production System |
BINWAG, JOVELYN Y. APRIL 2013
RESULTS AND DISCUSSION
Number of days from sowing to 50% emergence
With regards to the number of days from sowing to 50% emergence, significant
differences were obtained as shown in Table1. ‘Contender’ was the earliest to attain 50%
emergence having a mean of 7.67 corresponding to 7days compared to the ‘French bean’
which has the longest number of days before attaining the 50% emergence with a mean of
8.67. The other varieties (‘Bokod’, ‘Sablan’, and ‘China 804’) had comparable means of
8.0.
Table 1. Number of days from sowing to 50% emergence
TREATMENT
MEAN
Bokod
8.0b
Sablan
`
8.0b
French bean
8.67 a
China 804
8.0b
Contender
7.67b
CV (%)
3.93
Means with a common letter do not differ significantly at 5% level by DMRT
This result differs from the report of Jose (2004) that recorded the ‘Contender’
reached 9 days to attain the 50% of emergence. The differences in the germination period
can be attributed to their inherent varietal characteristics.
Performance of Selected Bush Snap Bean Varieties under Organic Production System |
BINWAG, JOVELYN Y. APRIL 2013
Number of days from sowing to first harvest
The number of days from sowing to first harvest is shown in Table 2. The five
varieties did not manifest significant differences as far as the period from sowing to the fist
harvest is concerned.
Table 2.Number of days from sowing to first harvest
TREATMENT
MEAN
Bokod
55a
Sablan
55a
French bean
55a
China 804
55a
Contender
55 a
Means with a common letter do not differ significantly at 5% DMRT
It has been observed that although the five varieties differ in the number of days
from sowing to emergence they are almost equal in terms of pod development which is 55
days from sowing to first harvest.
Performance of Selected Bush Snap Bean Varieties under Organic Production System |
BINWAG, JOVELYN Y. APRIL 2013
Occurrence of Bean Rust and Pod Borer
It has been observed that numerically, ‘French bean’ plant were the most
susceptible to bean rust although showed mild resistance to pod borer. However, statistical
analysis revealed no significant differences among the five varieties.
Table 3. Insect Pest and Diseases Infestation
TREATMENT
Pod borer
Bean rust
Bokod
moderate resistant
Susceptible
Sablan
moderate resistant
Susceptible
French bean
mild resistant
moderate resistant
China 804
moderate resistant
Susceptible
Contender
moderate resistant
Susceptible
In the study of Wesley (2007), it has been reported that ‘Contender’ had moderate
resistance to pod borer. This study revealed different observation with that of Pastor (2005)
who reported that ‘Contender’ had moderate resistance to bean rust. This study showed
otherwise, being one of the susceptible varieties to the fungus. The differences observed
may be attributed to the different farming practices applied and also the location of the
previous study.
Scale Followed in Determining Degrees of Resistance to Pod Borer and Bean Rust
Scale
Percent infestation
Description
1
No infestation
Highly Resistant
2
1-25% of the plant/plot infected
Mild Resistant
3
26-50% of the plant/plot infected
Moderately Resistant
4
51-75% of the plant/plot infected
Susceptible
5
76-100% of the plant/plot infected Very susceptible
Performance of Selected Bush Snap Bean Varieties under Organic Production System |
BINWAG, JOVELYN Y. APRIL 2013
Total Yield (kg)
The total weight of pods per plot produced by the different cultivars is presented in
Table 4. Numerically, ‘China 804’ produced the heaviest pods having a mean of 5.10 kg
per plot while ‘French beans’ had the lowest which has a mean of 3.06 kg.
Table 4. Total yield per plot (kg)
TREATMENT
MEAN
Bokod
3.97a
Sablan
4.10a
French bean
3.06a
China 804
5.10a
Contender
4.76a
CV (%)
23.12
Means with a common letter do not differ significantly at 5% DMRT
Statistical analysis, however, showed that differences among the five bean varieties
were not significant.
Performance of Selected Bush Snap Bean Varieties under Organic Production System |
BINWAG, JOVELYN Y. APRIL 2013
Weight of Marketable Yield (kg) in 5 sq.m Area
Table 5 shows the marketable yield of the five bush snap bean. There were no
significant differences observed among the varieties evaluated.
Table 5. Weight of marketable pods (kg) in 5 sq. m area
TREATMENT
MEAN
Bokod
1.94a
Sablan
2.58a
French bean
1.82a
China 804
3.08a
Contender
2.37a
CV (%)
20.50
Means with a common letter do not differ significantly at 5% DMRT
Numerically, however, ‘China 804’ produced the heaviest weight of marketable
pods with a mean of 3.08 kg while ‘French bean’ had the lowest. ‘French bean’ variety
which produced the lowest marketable pods. This can be attributed to the small sizes of its
individual pods yielding only a mean of 1.82 kg of pods per 5 sq. m area as compared to
the other varieties evaluated.
Performance of Selected Bush Snap Bean Varieties under Organic Production System |
BINWAG, JOVELYN Y. APRIL 2013
Weight of Non-marketable Pods
Table 6 shows the weight of non-marketable yield of the five bush snap bean
varieties. ‘Contender’ produced the heaviest weight of non-marketable pods, while ‘French
bean’ the lowest. This observation differs from the findings of Novida (2007) who reported
that ‘Contender’ had the lowest non-marketable pods. These differences might be due to
different farm management practices applied on both studies.
Table 6.Weight of non-marketable pods (kg) in 5 sq. m area
TREATMENT
MEAN
Bokod
2.04a
Sablan
1.65a
French bean
1.24a
China 804
1.75a
Contender
2.39a
Means with a common letter do not differ significantly at 5% DMRT
Despite the numerical differences however, statistical analysis showed no
significant differences among the five bushsnap bean varieties evaluated.
Computed Marketable Yield
Table 7 shows that numerically, ‘China 804’, ‘Sablan’, and ‘Contender’ had higher
yield per hectare compared to the ‘Bokod’ and ‘French bean’.
Statistical analysis however, showed that there were no significant differences
observed among the five varieties of bush snapbean.
Performance of Selected Bush Snap Bean Varieties under Organic Production System |
BINWAG, JOVELYN Y. APRIL 2013
Table 7. Computed marketable yield in tons per hectare
TREATMENT
MEAN
Bokod
3.87a
Sablan
5.16a
French bean
3.63a
China 804
6.17a
Contender
4.73a
Means with a common letter do not differ significantly at 5% DMRT
Meteorological Data
Table 8 shows the amount of rainfall, RH, maximum and minimum temperature
and sunshine duration during the conduct of the study.
The mean rainfall were 21, 1.33, 0.1, and 0.5mm; relative humidity were 83, 80, 84
and 98%; maximum temperature were 22.2, 19.9, 20.6 and 23.7oC, while minimum
temperature were 15.1, 13.1, 13.2 and 18.8; sunshine durations were 343.7, 329, 377.7 and
360.0 minutes in October, November, December and January, respectively.
Table 8. Meteorological data
MONTH
TEMPERATURE (oC)
RH (%)
RAINFALL SUNSHINE
MIN
MAX
AMOUNT
(MINUTES)
(mm)
October
15.1
22.2
83
21
343.7
November
13.1
19.9
80
1.33
329
December
13.2
20.6
84
0.1
377.7
January
18.8
23.7
98
0.5
360.0
Performance of Selected Bush Snap Bean Varieties under Organic Production System |
BINWAG, JOVELYN Y. APRIL 2013
Economic Analysis
Under organic farming system ‘French bean’ obtained the highest return on
investment of 90.06% or PhP 0.90 for every peso invested in the production despite that it
is one of the lowest in marketable yield. This can be attributed to the fact that ‘French bean’
has the highest price in the market as compared to the other varieties. This was followed
by ‘Sablan’, ‘China 804’, ‘Contender’ and ‘Bokod’, respectively in that order.
Table 9. Economic analysis of the different varieties in 75 sq. m area
CULTIVARS
Bokod
Sablan
French
China Contender
PARTI C
C ontend
ULAR
Bean
804
Marketable
Yield (kg)
6.1
7.745
5.45
9.25
7.095
Gross Sales (P)
366
464.7
654
555
425.7
Expenses:
Seeds
75
75
95
75
65
PCM
30
30
30
30
30
Wood vinegar 32
32
32
32
32
Plastic
49
49
49
49
49
Tractor
22.5
22.5
22.5
22.5
22.5
Labor
115.6
115.6
115.6
115.6
115.6
Total expenses
324.1
324.1
344.1
324.1
314.1
Net profit
41.9
140.6
306.9
230.9
111.6
ROI (%)
12.93
43.38
90.06
71.24
35.53
RANK
5
3
1
2
4
Note: Selling price at the BSU ORGANIC MARKET
French beans= PhP 120 per kilo
China 804, Sablan, Bokod, and Contender = PhP 60 per kilo
Performance of Selected Bush Snap Bean Varieties under Organic Production System |
BINWAG, JOVELYN Y. APRIL 2013
SUMMARY, CONCLUSIONS AND RECOMMENDATIONS
Summary
The study was conducted at Balili Experimental Area Benguet State University La,
Trinidad Benguet from October 2012 until January 2013, to determine the growth, yield
and profitability of selected bush beans grown under the organic production system.
The results of the study revealed that ‘Contender’ has the least number of days to
attain 50% emergence having a mean of 7.67 compared to the ‘ French bean’ which has
the longest number of days with a mean of 8.67. However, there were no differences
observed among the treatments with regards to the number of days from sowing to first
harvest. ‘French bean' is the most resistant variety against pod borer. Bean rust infection
was noted on all of the varieties evaluated. ‘China 804’ produced the highest pod yield
with 5.10kg per plot followed by ‘Contender’, ‘Sablan’ ‘Bokod’ and ‘French beans’ with
4.76, 4.10, and 3.97 kilogram per plot, respectively. ‘China 804’ obtained the heaviest
marketable pods with 3.08 kg mean, compared to ‘French bean’ having the lowest mean of
1.82 kg. ‘China 804’ produced the highest computed marketable yield with a mean of 6.17
kg followed by ‘Sablan’ (5.16 kg), ‘Contender’ (4.73 kg), ‘Bokod’ (3.87 kg) and the lowest
is the ‘French bean’ (3.63 kg).
As to profitability, ‘French bean’ obtained the highest return on investment (ROI)
of 90.06% or PhP 0.90 for every peso invested in production followed by ‘China 804’
(71.24%), ‘Sablan’ (43.38%), ‘Contender’ (35.53%) and ‘Bokod bean’ (12.93%).
Performance of Selected Bush Snap Bean Varieties under Organic Production System |
BINWAG, JOVELYN Y. APRIL 2013
Conclusions
Based on the results ‘China 804’ produced the highest yield per plot and the second
highest return on investment, whereas ‘French bean’ gave the highest return on investment
despite of being the lowest in weight, since it has the highest selling price of PhP 120 per
kilo compared to the other varieties that was sold PhP 60 per kilo at the BSU Organic
Market.
Recommendations
It is therefore recommended that ‘French bean’ be used for planting in order
to obtain higher return on investment. It is also recommended that ‘China 804’ be planted
for its heavy weight of marketable pods under organic production system. To verify the
results of this study, planting at other times of the year is recommended to verify the
performance of the five varieties evaluated in this study.
Performance of Selected Bush Snap Bean Varieties under Organic Production System |
BINWAG, JOVELYN Y. APRIL 2013
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Performance of Selected Bush Snap Bean Varieties under Organic Production System |
BINWAG, JOVELYN Y. APRIL 2013