response of chickpea entries to transient...
TRANSCRIPT
RESPONSE OF CHICKPEA ENTRIES TO TRANSIENT WATERLOGGING IN THE
PHILIPPINE HIGHLANDS
BELINDA A. TAD-AWANCHARLOTTE C. SHAGOLHILDA V. PALAESDepartment of Agronomy, College of AgricultureBenguet State University, La Trinidad, Benguet, Philippines
BSU International Conference on Food, Environment and Culture
May 15-17, 2017Supreme Hotel, Baguio City,
Philippines
• Chickpea and other food legume crops play a significant role in overcoming problems related to food and nutritional insecurity in developing countries.
• The stability and increasing the production should be met.
Rationale
Rationale• Legume production in the Philippine
highlands is highly seasonal and is largely dependent on the growing environment.
• Waterlogging brought by excessive rainfall contributes to low productivity during the wet season.
Rationale• Evaluation of potential crops
like chickpea as an alternative crop and selection of appropriate and resistant varieties capable of growing and yielding satisfactorily under waterlogging conditions is important for successful production.
Objectives• The study was conducted to
determine the influence of waterlogging at different growth stages of chickpea and to determine chickpea entries resistantto waterlogging.
Site Site Balili, La Trinidad, Benguet, Philippines
(1,332 m asl)Experimental Treatments and DesignStage of waterlogging
• SW0-no waterlogging at any stage• SW1-waterlogged at vegetative stage
(21 days after sowing)• SW2-waterlogged at flowering stage
(50% of plants with one open flower)• SW3-waterlogged during pod fill
(30 days after 50% flowering) Entry
• ICCV 09304, ICCV 92311, ICCV 95332,CCV 08202 and ICCV 92966
Split plot design, 3 replications
METHODOLOGY
MethodologyWaterloggingImposition Chauhan, 1997 Potted plants were
soaked into 50 x 450 cm soil tank
Plants were subjected to artificial waterlogging for 120-144 hours.
Results
35.53
26.19
8.47
22.78
0
10
20
30
40
Stage of Waterlogging
Stage of waterlogging
Control
Vegetative
Flowering
Pod filling
Figure 1. 100-seeds weight of five chickpea entries undertransient waterlogging
42.12
21.2 23.1612.48 17.25
0
20
40
60
Category 1
Entry
ICCV 09304 ICCV 95332 ICCV 92311 ICCV 08202 ICCV 92966
100-
Seed
s W
eigh
t (g
)
1.4 1.28
0.15
0.81
0
0.5
1
1.5
Stage of Waterlogging
Stage of waterlogging
ControlVegetativeFloweringPod filling
Figure 2. Seed yield of five chickpea entries undertransient waterlogging
1.32
0.75 0.75 0.720.99
0
1
2
Category 1
Entry
ICCV 09304 ICCV 95332 ICCV 92311 ICCV 08202 ICCV 92966
Seed
Yie
ld p
er p
lant
(g
/pla
nt)
0.430.37
0.06
0.28
0
0.2
0.4
0.6
Stage of Waterlogging
Stage of waterlogging
ControlVegetativeFloweringPod filling
Figure 3. Harvest index of five chickpea entries undertransient waterlogging
0.330.24 0.29 0.26 0.31
0
0.5
Stage of Waterlogging
Entry
ICCV 09304 ICCV 95332 ICCV 92311 ICCV 08202 ICCV 92967
Harv
est I
ndex
c
c c
Chickpea entries subjected to waterlogging at the different stages show decreased growth parameters such as flowering, leaf area, plant height, branches, maturity, and survival resulting in low seed yield per plant and weight of 100 seeds.
Waterlogging at the vegetative stage results in delay of flowering and maturity, decrease leaf area and low weight of seeds, low seed yield and low harvest index. Waterlogged plants at pod filling stage senesced at 95 DAP, have small leaf size, low seed yield and harvest index.
Entries ICCV 09304, ICCV 92311 and ICCV 92966 perform best under waterlogging treatments as shown by large leaves, high seed yield and seed weight.
CONCLUSION
Department of Agronomy, College of Agriculture and Climate- Smart Agriculture Center, BSU
ACKNOWLEDGMENT
Thank you for listening.
BSU International Conference on Food, Environment and Culture
May 15-17, 2017Baguio City, Philippines