EFFECTS OF ZINC ON GROWTH AND YIELD OF MUSTARD

Abstract

A field experiment was conducted at the Agronomy field of Sher-e-Bangla Agricultural University, Dhaka during the period of October-2019 to February 2020 to investigate the effects of zinc on growth and yield of mustard. The experiment conducted in a split-plot design with three replications. The experimental factors were, Factor A: Mustard variety (2) viz, V 1 = BARI Sarisha-14, V = BARI Sarisha-15 and Factor B: Zinc level (6) viz, Zn 1 , Zn 3 = 3.00 kg ha -1 ,

Zn 4 = 4.00 kg ha 0 = 0 kg ha -1 and Zn -1 5 , Zn 1 = 1.00 kg ha = 5.00 kg ha -1 2 -1 ,

Zn .The result showed that the data on growth, yield and yield contributing characteristics of mustard varieties and zinc levels with their combinations were found significant. BARI Sarisha-14 (V ) produced the maximum number of siliqua plant cm), number of seeds siliqua -1 -1 2 = 2.00 kg ha (103.21), siliqua length plant (23.84), 1000-seed weight (3.66 g), seed yield (1.67 t ha -1 ), stover yield (3.90 t ha -1 ), biological yield (5.57 t ha -1 ) and harvest index (29.90 %). In case of zinc level application of 5.00 kg zinc ha -1 (Zn ) recorded the maximum number of siliqua plant -1 (101.83), siliqua length plant -1 5 (9.77 cm), number of seeds siliqua -1 (23.84), 1000-seed weight (3.74 g), seed yield (1.82 t ha -1 ), stover yield (4.07 t ha -1 ), biological yield (5.89 t ha -1 ) and harvest index (30.82 %). The interaction affect revealed that the cultivation of BARI Sarisha-14 mustard variety (V ) along with 5.00 kg zinc ha -1 (Zn ) treated plot recorded the maximum number of siliqua plant -1 5 (116.33), siliqua length plant -1 (11.07 cm), number of seeds siliqua (27.67), 1000 seed weight (3.89 g), seed yield (1.94 t ha -1 ), stover yield (4.16 t ha ), biological yield (6.10 t ha -1 ) and harvest index (31.79 %) highly positive correlations between seed yield and yield contributing characters of mustard more observed other treatment combinations.