Plants of peanut (Arachis hypogaea L.) were waterlogged for 7 and 14 days at vegetative, flowering and pod-filling stages and were treated with 10 and 100 mg−1 of gibberellic acid (GA3). Waterlogging decreased the shoot height at all the stages and the root shoot ratio only at pod-filling stage. Further it also adversely affected the yield parameters and significantly decreased the number of flowers and pods, pod weight and seed weight. Its effect at pod-filling stage was more deleterious than at other stages. Both 10 and 100 mg−1 of GA3 increased all the yield parameters.
The deleterious effects of waterlogging on various growth and yield parameters were partially alleviated by exogenous application of GA3.
