Stability analysis for straw and grain yield in rice (Oryza sativa L.)
AbstractTwenty five rice varieties / hybrids were investigated for their stability in grain yield and straw yield during kharif seasons of 2009, 2010 and 2011. The highly significant differences among rice genotypes for grain and straw yield over environment and genotype x environment interaction were observed. The genotype Ratnagiri, found stable for straw and grain yield. The genotype Sahyadri 3 (14.276 g) found to perform well under better environmental conditions for straw yield while Ratnagiri 2 (13.541 g) and Panvel 3 (10.410 g) found to perform well under better environmental conditions for grain yield. The genotype Ratnagiri 24 (10.310 g) found to perform well under adverse environmental conditions for straw yield, while genotype Sahyadri 4 (13.510 g) for grain yield. Hence, the genotypes Ratnagiri 1, Sahyadri 3, Ratnagiri 2, Ratnagiri 24 and Sahyadri can be directly used in various breeding programmes for enhancing rice productivity
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