Effect of stress mitigating chemicals and sulphur on growth characters of Black gram (Vigna mungo L.)

Abstract

A field experiment was conducted during Kharif, 2025 at the Instructional Farm, College of Agriculture, Bhilwara, to study the effect of stress mitigating chemicals and sulphuron growth characters of black gram (Vigna mungo L.). The experiment was laid out in a factorial randomize block design with four stress mitigating chemicals levels viz., control, salicylic acid @ 75ppm (FI) + 7 DAFS, 2 % urea (FI) and thiourea @ 500 ppm (FI) and four sulphur levels viz., control, 10, 20 and 30 kg ha-1, replicated three times. The recommended dose of fertilizer was 20: 40 kg N: P2O5 ha-1 and half nitrogen with full and phosphorus were applied at sowing while the remaining nitrogen was top-dressed in splits.The experimental results showed that application of thiourea @ 500 ppm recorded significantly higher values of growth characters viz., plant height (51.49 cm) and dry matter accumulation (17.84 g plant-1) at harvest in black gram which was superior to lower stress mitigating chemicals levels and was at par with salicylic acid @ 75 ppm (FI) + 7 DAFS. Among the sulphur levels, application of sulphur 30 kg ha-1 recorded significantly higher values of plant height (48.67 cm) and dry matter accumulation (18.06 g plant-1) at harvest which was found superior over control and sulphur 10 kg ha-1 but statistically at par with sulphur 20 kg ha-1. The results indicated that application of thiourea @ 500 ppm in combination with sulphur 30 kg ha-1 had a positive effect on the growth and development of black gram.