Abstract:
Executive Summary
The experiment was conducted in the Research Field of Sher-e-Bangla Agricultural
University (SAU), Dhaka-1207 during the period of 1
30
st
week of March, 2022 to June 29,
2022 to evaluate the growth and yield performance of selected mungbean genotypes at
variable irrigation management conditions. Thirty mungbean genotypes were evaluated
under waterlogging and normal condition. Waterlogging was imposed at 30 days after
sowing by transferring the pots in a water tub where water was maintained about 5 cm above
the soil surface of pots. After four days (96 h), pots were removed from waterlogging and
kept in normal condition until maturity. Waterlogging significantly affected growth and
yield of mungbean genotypes. Waterlogging caused a drastic yield reduction in mungbean.
The seed yield reduction was about 60% due to waterlogging as compare to control
condition, however, genotypes showed variable response to waterlogging. Under waterlog
condition the higher relative yield was found in G11, G8, G30, G7, G16 and G14 while that
was lower in G2 and G17. Dry matter production also reduced by waterlogging. However,
under waterlogging, G8, G7, G22, G2, G19 and G11 showed better dry matter production
compared to other genotypes. Stress tolerance index (STI), yield index (YI) and relative
yield (RY) of G16, G20, G7, G8, G11, G30 and G14 were higher than others. On the basis
of yield, dry matter production, STI, YI and RY, genotypes G7, G8, G11, G12, G14, G16,
G20, G22 and G30 could be selected as relatively tolerant genotypes against waterlogging
stress.
