Effect of Waterlogging Condition on Growth, Physiology and Yield Characteristics of Soybean Genotypes (Glycine max(L.) Merrill)
By D. K. Raidas, S.R. Ramgiry and R. Khandwe | 31-12-2019 | Page: 138-141
Abstract
Waterlogging is one of the environmental stresses that affect the growth, physiology and yield attributes injured due to the anaerobic environment. The objective of above investigation was to study the variation in growth, physiological and yield characteristics in soybean genotypes/varieties. A total of 25 soybean genotypes/varieties were grown in complete randomized block design with three replications having 5 rows 40 cm apart with 3 meter row length of every genotype. Water logging was created at 20 DAS, 40 DAS and 60 DAS in event of no rains after planting by applying water level about 5 cm above the soil surface. The mean data of the all characters viz. plant height, number of branches/plant, number of nodules/plant , dry weight of nodules/plant, ascent of sap in (%), transpiration rate in (mmol H2O m-² s-1), harvest index (%) and yield (q/ha.) were computed for statistical analysis. The results revealed that soybean could grow and produce grains even under water logging condition.The significant differences were observed among the genotypes for major growth physiological and yield attributes except number of branches, number of nodules and ascent of sap. Further the result revealed that high magnitude of characters like plant height, dry weight of nodules, transpiration rate harvest index and yield per hectare were recorded in genotypes/varieties RVS2007-7, JS2069, RVS2007-1, RVS2001-4 and JS 2059 as compared to control. Hence these genotypes/varieties were found suitable under waterlogged condition.