Studies of Physiological and Yield Attributing Traits of Soybean [Glycine max (L.) Merrill]

Abstract

The experiment was conducted at AICRP Soybean, Seed Breeding Farm, Department of Plant Breeding and Genetics, College of Agriculture, JNKVV, Jabalpur (M.P.). The experiment was consisting of 90 genotypes to study the difference in growth, morpho-physiological characterization and yield response of soybean. The genotype JS 21-72 followed by JS 22-18 and PS-1613 recorded the highest number of leaves per plant. AGS-48 showed maximum plant height among all other genotypes. Genotype DS 31-09 followed by JS 22-16 produced the maximum number of pods per plant. DS 31-09 followed by JS 22-16 produced maximum number of pods per plant with respects to all another genotype Early work with infrared thermometers proved successful in monitoring plant Evaporative rate. The canopy temperature in the current study ranged from 32.13 in JS 23-03 to 36.15 in JS 22-49. In yield attributing characters genotype highest seed yield was produced by JS 21-72 whereas JS 24-35 followed by JS 24-37 the shows highest number of seed per pod and 100 seed weight. Genotype NRC-137 followed by JSM 259 showed a higher range of harvest index. It is concluded that the six genotypes viz., JS 21-72, JS 24-35, JS 24-37, JS 22-16 AGS-48 and NRC- 137 found best to describe the morpho-physiological characterization in the present study.