Journal of Agricultural Research (2020), Volume. 7, Issue (2)

Abstract

The field experiments were conducted in Kyunpyar Village, Minbu Township, Magway Region, in Central Dry Zone during monsoon and post-monsoon seasons, 2017, to evaluate the effect of zinc (Zn) and boron (B) on yield and yield contributing characters of green gram, to investigate the combined effect of Zn and B on yield and yield components of green gram and to find out the optimum dose of Zn and B for increasing yield of green gram in the experimental area. The experimental design was 4 x 3 factorial arrangements in randomized completed block design (RCBD) with three replications. There were 12 treatments comprising of four levels of zinc (0.0, 1.0, 2.0 and 3.0 kg ha-1) and three levels of boron (0.0, 0.5 and 1.0 kg ha-1) along with a recommended dose of N20 P40 K40 kg ha-1. The tested variety was Yezin-14. The results indicated that single application of 3.0kg Zn ha-1 and boron 1.0kg B ha-1 produced the greatest yield in both seasons. Combined application of Zn and B treatment T12 (3.0kg Zn ha-1 + 1.0kg B ha-1) gave the maximum yield (1690 kg ha-1) in monsoon season, which was statistically similar to T6 (1.0kg Zn ha-1 + 1.0kg B ha-1) treatment. Tallest plant height (40.73cm), greatest number of seeds per pod (12.80) and maximum harvest index (0.46) were obtained from treatment T6 in monsoon season. In post-monsoon season, T12 showed the greatest number of seeds per pod (11.46), 100seed weight, highest number of pods per plant, total dry matter and the yield (557 kg ha-1). From this investigation, it can be concluded that the treatment T6 was the optimum dose for monsoon season and the treatment T12 was the suitable dose for post-monsoon season to get the maximum yield of green gram cultivation in the experimental area.