Ecology Journal

Ecology Journal

Ecology Journal

Ecology Journal

Effect of waterlogging stress on yield and yield contributing traits of soybean



 

ABSTRACT: A field experiment was conducted at the Agronomy research field of Bangabandhu Sheikh Mujibur Rahman Agricultural University during January 2018 to May 2018 to evaluate the effects of waterlogging on yield and yield contributing traits of soybean genotypes. Ten soybean genotypes, viz. G0006, BD-2336, AGS-383, PK-472, BD-2350, GMOT-22, NCS-1, Shohag, BU soybean 1 and BARI soybean 6 were tested under three waterlogging durations, namely control, 4 days of waterlogging and 8 days of waterlogging. The experiment was laid out in a splitplot design with three replications. The results indicated that waterlogging significantly reduced plant growth, such as plant height, number of branches plant-1, and yield and yield contributing traits, such as number of pods plant-1, number of seeds pod-1, 100-seed weight, seed yield and harvest index. Those characters were affected more by 8 days of waterlogging than that of 4 days. Nonetheless, the genotypes Shohag, BU soybean 1 and BARI soybean 6 were less affected by waterlogging. The seed yield of BU soybean 1, Shohag and BARI soybean 6 was 2.11 g plant-1, 1.93 g plant-1 and 1.87g plant-1 under eight days waterlogging condition, whereas the relatively more susceptible genotypes G0006, PK-472 and BD-2336 had 0.54 g plant-1, 0.73 g plant-1 and 0.96 g plant-1. Therefore, genotypes Shohag, BU soybean 1 and BARI soybean 6 may be suitable for growing under waterlogging up to 8 days. 

 

Keywords: Soybean, waterlogging, yield contributing traits