Green Global
Foundation   Journal
...an emerging window for scientific research and publication across the globe

EVALUATION OF BLACKGRAM GENOTYPES TOLERANCE TO WATERLOGGING CONDITION DURING GERMINATION STAGE (Pages : 1 - 12)

The black gram Vigna mungo (L.) Hepper is an important short-duration legume crop that often experiences waterlogging stress from unanticipated and frequent extreme rainfall events in the Kharif-II season due to climate change in Bangladesh. Seed germination and seedling growth are very important steps in plant survival. Waterlogging stress is one of the important factors affecting seedling growth. An experiment was carried out at the Agroforestry and Environmental Science Field Laboratory of Sher-e-Bangla Agricultural University, Dhaka, 1207, during the Kharif-II season, 2022, to evaluate 15 black-gram genotypes for understanding waterlogging tolerance with respect to germination characteristics. The experiment used a complete randomized design (CRD) with three replications. The waterlogging durations were 2 days and 4 days at the germination stage. In the pot experiment, different germination parameters were studied for two durations of waterlogging. The results revealed significant differences among the genotypes at each waterlogging level, and significant decreases in the germination percentage, germination speed, mean daily germination, root length, shoot length, root shoot ratio, and germination index were detected among all the tested genotypes. The eight black gram-type plants that survived after two days and four days of waterlogging were V11 (MH 8569), V2 (86169), V3 (DHL 5), V6 (DHL 4), V9 (DHL 12), V10 (RU 75), V12 (BARI Mash-3) and V13 (DHL 65), and their germination and germination efficiency were attributed to the waterlogging conditions. Therefore, these selected traits may be useful for developing waterlogging-tolerant black gams.Download