Effect of growth regulators on growth, seed yield and quality attributes in garden pea (Pisum sativum var Hortense) cv. Pusa Pragati

Abstract

The effect of foliar sprays of plant growth regulators (PGRs), viz. NAA (10, 15 and 20 ppm), GA(3) (50, 75 and 100 ppm) and kinetin (10, 15 and 20 ppm) at 25 and 35 DAS was evaluated on growth, yield and seed quality attributes in garden pea (Pisum sativum var Hortense) cv. Pusa Pragati under field condition. Plant morphology was affected by spray of the three PGRs at vegetative stage. Plant height increased with increase in concentration of GA(3) and kinetin, albeit NAA. However, GA(3) did not influence the number of primary branches/plant, which were significantly increased by kinetin and NAA. GA(3) had a profound effect on hastening the initiation of flowering by 3-5 days over water sprayed control, whereas other plant growth regulators did not affect the days to flowering. The seed quality parameters did not increase significantly on increasing the concentration of PGRs except seedling length and vigour.