GROWTH AND YIELD OF SAU SHADA BHUTTA-3 UNDER DIFFERENT SPACING AND IRRIGATION FREQUENCY IN RABI SEASON

Abstract

An experiment was conducted at Sher-e-Bangla Agricultural University farm, Dhaka to investigate the effect of different spacing and irrigation frequency on the growth and yield response of Shada bhutta-3 during October-2019 to February-2020. The experiment was consisted of two factors. Factor A: Irrigation frequencies (3) viz ; I 1 : Irrigation at 30 days interval, I 2 : Irrigation at 35 days interval and I 3 : Irrigation at 40 days interval and Factor B: Different spacings (4) viz ; S 1 ii : 40 cm × 20 cm, S 2 : 40 cm × 25 cm, S 3 : 50 cm × 20 cm and S 4 : 50 cm × 25 cm. The experiment was laid out in split plot design with three replications. Results indicated that irrigation frequency, different spacing and their combination had significant effect on growth, yield and yield contributing characters of Shada bhutta-3. In case of irrigation frequencies the maximum cob length plant -1 (17.26 cm), cob circumference plant -1 (14.94 cm), grain weight cob -1 (90.44 g) and grain yield (9.04 t ha -1 ) were observed in I 1 treatment. At different spacing the maximum cob length plant 1 (15.44 cm), number of rows cob -1 -1 (17.26 cm), cob circumference plant (14.52), number of grains row -1 (28.40), and 1000 grains weight (396.67 g) were observed in S 4 treatment. The maximum grain yield (9.37 t ha -1 ) was observed in S 1 treatment. In case of combination, maximum grain yield (9.54 t ha -1 ) was observed in I 1 S 1 (I 1 : 30 days irrigation interval along with spacing S 1 :40 × 20 cm) treatment combination whereas minimum grain yield (7.45 t ha ) was observed in I 3 S 4 treatment combination