Performance of Some Rice (Oryza sativa L.) Cultivars under Water Shortage and High Temperature Stress

Water shortage and heat are the most devastating abiotic stresses threating global food security. To understand behavior of germplasm under both stresses, thirteen rice genotypes were selected for study to make evaluation water stress condition. The results showed that year mean squares significant highly all agronomical traits except, flag leaf area, number tillers plant-1, panicles 100 grain weight, yield plant-1 harvest index indicated overall wide differences weather during years. Environments found be over used, indicating environments differences. observed among G x E interaction characteristics panicle length. Concerning cultivars performance across three environments, Giza 178, 179, Sakha 107, Hybrid 1, 2 gave best desirable values normal, drought conditions so, these considered play vital role in breeding program enhancement have high potential. positive correlation investigation except with angle, rolling sterility percentage. will further help utilize crop improvement programs.