Effect of Drought Stress on Yield and Yield Components of 20 Peanut Genotypes Grown under Newly Reclaimed Soil

THIS INVESTIGATION was carried out to evaluate the performance of some yield characteristics for twenty peanut genotypes of different origins under two irrigation treatments. The experiment was conducted during the two successive seasons 2015 and 2016 at the Experimental Station of Desert Research Center, Toshka, Egypt. Losses in peanut line yield and yield component are maximized at drought treatment. The main objective of this investigation was to study the effects of deficit irrigation (I) in genotype (G) and G × I interaction on yield component and yield traits in peanut genotypes. A split plot design was used, where the irrigations were allotted to two irrigation treatments, i.e. well watering by giving all recommended irrigations (3500 m^3/fad) and water stress by giving 67% from recommended irrigations (2345m^3/fad), while sub plots were allotted to genotypes. Water stress caused a significant decrease in pod yield/ha, pod yield/plant, seed weight/plant, no. of pod/plant, no. of seed/pod and 100 seed. The rank of genotypes for studied traits under water stress was changed from that under well watering conditions. The peanut lines L11 and L17 were the highest values for pod yield/plant and other studied traits, L11 for seed weight/plant and number of seeds/plant, and L3 for 100 seed weight.