response of chickpea entries to transient...

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