EFFECT OF ZINC APPLICATION ON THE GROWTH AND YIELD OF MUSTARD (BRASSICA JUNCEA L

Abstract

The experiment conducted during 2022-23 to effect of zinc application on the growth and yield of mustard (Brassica juncea L.). The experiment was laid at the Students’ Experimental Farm, Sindh Agriculture University, Tandojam in a three replicated Randomized complete block design. The treatments included T1 = 00 kg ha -1 (control zinc), T2 = Zn 1 kg ha -1 , T3 = Zn 3 kg ha -1 , T4 = Zn 5 kg ha -1 and T5 = Zn 7 kg ha -1 . The results shows that the Zn 7 kg ha -1 resultedmaximum 69.57 m-2 plant population, 129.95 cm plant height, 18.00 branches plant -1 , 301.33 pods plant -1 , 12.00 seeds pod -1 , 4.66 g seed index (1000-seeds weight) and 2068 kg ha -1 seed yield. The mustard crop receiving Zn 5 kg ha -1 resulted 69.00 m-2 plant population, 127.33 cm plant height, 17.21 branches plant -1 , 297.03 pods plant -1 , 11.50 seeds pod -1 , 3.50 g seed index (1000-seeds weight) and 2015 kg ha -1 seed yield. Zn 3 kg ha -1 also affected resulted 68.21 m-2 plant population, 125.00 cm plant height, 16.14 branches plant -1 , 287.67 pods plant -1 , 11.00 seeds pod -1 , 3.50 g seed index (1000-seeds weight) and 1720 kg ha -1 seed yield. The mustard crop with Zn 1 kg ha -1 resulted 67.51 m-2 plant population, 120.31 cm plant height, 15.33 branches plant -1 , 280.00 pods plant -1 , 10.59 seeds pod -1 , 3.00 g seed index (1000-seeds weight) and 1361 kg ha -1 seed yield. However, the 00 kg ha -1 (control zinc) resulted minimum 66.62 m-2 plant population, 118.52 cm plant height, 14.08 branches plant -1 , 270.00 pods plant -1 , 10.00 seeds pod -1 , 2.50 g seed index (1000-seeds weight) and 1091 kg ha -1 seed yield. It was concluded that the effect of zinc levels on the growth and yield traits of mustard was remarkable (P<0.05) and Zn 7 kg ha -1 produced maximum seed yield (2068 kg ha -1) than Zn 5 kg ha -1 (2015 kg ha -1) and Zn 3 kg ha -1 (1720 kg ha -1).