ATAR SINGH*, MUKESH KUMAR, AKASH SINGH AND POOJA TIWARI
Department of Genetics and Plant Breeding
Sardar Vallabhbhai Patel University of Agriculture and Technology,
Meerut-250110 (U.P.) India
*(e-mail : email@example.com)
(Received : 07 June 2020; Accepted : 25 June 2020)
Aim of present investigation was to assess genotype environment interaction and determine stable oat (Avena sativa L.) cultivar in central Uttar Pradesh under diverse environment for seed yield and its components in 25 genetically diverse genotypes using randomized block design with three replications during winter season of 2016 -17 and 2017-18 at Students Instructional Farm of Chandra Shekhar Azad University of Agriculture and Technology, Kanpur during rabi 2016-17 to 2017-18. There was considerable variation in seed yield within and across environments. Stability analysis for seed yield was calculated to know the response to genotype × environment interactions. The mean squares due to G×E (linear) were significant depicting genetic differences among genotypes for linear response to varying environments. Mean squares due to pooled deviations were highly significant, reflecting considerable differences among genotypes for non-linear response. The genotypes were found common in majority of characters namely, CSOFSC12-2, CSOFSC11-5, ANDO1, OS344, OS1, SKO105, CSAOFSC14-6, JHO03-91 and JHO851. Considering all the characters and all the models of stability under study none of the test genotypes were found stable for all the traits however, six genotypes namely,CSOFSC12-2, CSOFSC11-5, CSOFSC11-4, ANDO1,JHO03-91 OS344, OS1 SKO105, CSAOFSC14-6,JHO2007-1 and JHO851 were found stable for maximum characters under all dates of sowing in present study. These genotypes would be useful for commercial exploitation or can be exploited as elite gene pool in future breeding programme.
Key words:Oats, genotypes, environment, stability