Biomass Partitioning and Growth Characters in Relation to Plant Architecture in Soybean

摘要

A survey of biomass partitioning and growth characters in connection with yield was done on 41 soybean. Highest amount of biomass (129.0g) noticed in GS 80/G 76-3 was not associated .with satisfactory yield. The low yield (13.42g)) of this strain wasdue to heavy deposition (52%) into stem. Genotypes ACPS 9023 and DS-7 showed heavy deposition into leaves and roots. The population means indicated that soybean plant has a tendency to deposit 19.77, 8.05, 29.42, 30.85, and 11.41 percent assimilates intograin pod wall, stems, leaves, and roots respectively. The highest yielding PK 472 showed a pattern of 28.73, 11.14, 27.44, 25.26, and 7.46 percent allocation in grain, pod wall, stem, leaves, and roots respectively. The correlations indicated the nature of communication and interactions among different traits. On the basis of correlations, genetic parameters and allocation pattern a plant with 30-35 cm height, 5-6 branches, 20-25 functioning leaves at physiological maturity, 110-115 d maturity period, and allocation pattern of 30, 10, 25, 25, and 10 percent of assimilates into grains, pod wall, stem, leaves, and roots respectively was desirable.