721-11 Different Response of Soybean Cultivars on Flooding.

Poster Number 329

See more from this Division: C02 Crop Physiology and Metabolism
See more from this Session: Abiotic and Biotic Stress Tolerance (Posters)

Wednesday, 8 October 2008
George R. Brown Convention Center, Exhibit Hall E

Kiwon Oh, Seong-Hyu Shin, Sea-Gyu Lim, Se-Ri Kim, Jong-Min Ko, Won-Young Han, Hyeun-Tae Kim, Yin-Youl Baek, Jung-Tae Kim and Keum-Yong Park, Upland & Industrial Crop, Yeongnam Agricultural Research Institute, NICS, RDA, Miryang, Korea, Republic of (South)
Abstract:
Flooding is a major problem that reduces soybean [Glycine max (L.) Merr.] growth and grain yield in many areas of the world. Two soybean cultivars were flooded during vegetative stage and flowering time for ten days. Root morphological traits, development of adventitious roots were analyzed after flooding. Photosynthesis of soybean cultivars was reduced under the flooding condition in both growth stages. The photosynthesis of soybean was recovered after flooding in vegetative stage while flooding in flowering stage caused severe damage on soybean plants. No aerenchyma was observed in roots of non-flooded plants; however, it was abundant in roots of flooded plants. Aerenchyma development was more abundant during vegetative growth stage than reproductive stage. Lower aerenchyma formation in reproductive stage may cause lower adaptability in flooded condition.

See more from this Division: C02 Crop Physiology and Metabolism
See more from this Session: Abiotic and Biotic Stress Tolerance (Posters)

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