Effect of pre-sowing seed treatment with growth regulators on yield and yield contributing characters in mungbean [Vigna radiata (L.) Wilczek].

摘要

Seeds of four mungbean [Vigna radiata (L.) Wilczek] varieties, viz., Pusa Vishal, Pusa 9072, Pusa 9531 and PS-16 were treated with five growth regulators including gibberellic acid, indole acetic acid, benzoic acid, 2,3,5 tri-iodobenzoic acid, and 2,4-dochlorophenoxy acetic acid. Each variety was treated at three concentrations of each of these five chemicals. The objective was to investigate the performance of these varieties, when their seeds were treated before sowing with these growth regulators. Application of the plant growth regulators, 2, 3, 5 tri-iodobenzoic acid (10-3 ppm) and 2, 4-dichlorophenoxy acetic acid (10-3 ppm) produced highest seed yield in all the four varieties. This was due to more positive contributions by high harvest index, 100-seed weight, seeds per pod and pods per plant towards grain yield..