RESPONSE OF DIFFERENT MUNGBEAN (Vigna radiata L.) VARIETIES TO LEAFLET CLIPPING

Abstract

An experiment was carried out in the research plot of Sher-e-Bangla Agricultural University in Dhaka from February to June 2022, to explore how leaf clipping and variety affected mungbean growth and yield. The treatments included three leaf clipping techniques, C 0 =No leaf clipping (control), C 1 = 33% Leaf clipping (Removal of one leaflet), C 2 = 66% Leaf clipping (Removal of two leaflet) and four mungbean varieties, V 1 = BARI Mung-5, V 2 = BARI Mung-6, V 3 = BARI Mung-7, V 4 = BARI Mung-8. A two-factor randomized complete block design (RCBD) followed with three replications was used to set up the experiment. Leaf clipping, variety and their interactions had a significant effect on the growth, yield and yield components of mungbean. The tallest plants (13.82, 26.45, 40.77, 58.34 and 62.4 cm at 15, 25, 35, 45 and 55 DAS respectively) were obtained from C 1 V 4 (BARI Mung-8 with 33% leaf clipping). The highest pod length (10.03 cm), the maximum number of pods plant

(16.63), the highest number of seeds pod -1 (12.47) were obtained from C 1 (BARI Mung-8 with 33% leaf clipping) treatment combination. The maximum seed size (52.55 mg) was obtained from C 1 V 2 (BARI Mung-6 with 33% leaf clipping) treatment. The highest seed yield (2.09 t ha -1 ) was obtained from C 1 V 3 (BARI Mung-7 with 33% leaf clipping) treatment, while the lowest (1.07 t ha -1 ) from C 2 V 2 (BARI Mung-6 with 66% leaf clipping) treatment combination. Most of the parameters performed at their peak in case of BARI Mung-7 and BARI Mung-8. In most of the cases 33% leaf clipping demonstrated the best performance in terms of growth, yield and yield contributing characters. In case of combined effect, BARI Mung-7 with removal of one leaflet (33% leaf clipping) provided the best results followed by BARI Mung-8 with removal of one leaflet (33% leaf clipping) in terms of growth, yield and yield contributing parameters.

Keywords: Mungbean, Leaflet clipping, Yield, Growth, Variety.