Sohan Lal Kajla1*, Anil Kumar Sharma1, Hoshiyar Singh2, Mukesh Bhakal2, Bhagwati Baranda1, Neelu Kumari1 and Moti Ram Natwaria1
1Department of Genetics and Plant Breeding, Swami Keshawanand Rajasthan Agricultural University, Bikaner
2Division of Genetics and Plant Breeding, Sri Karan Narendra Agriculture University,
Jobner, Jaipur
Email: kajlasikar@gmail.com
Received-17.06.2020, Revised-04.08.2020
Abstract: The present investigation carried out by to assess the phenotypic stability for grain yield and its contributing traits under three varied environmental conditions using 10 diverse wheat genotypes and 45 F1S. The mean sum of squares due to genotypes and environments were found to be significant for all the characters, indicating differential effect of environment on the genotypes. G x E interaction was found significant for all the characters except spike length and biological yield per plant. Similarly the pooled analysis of variance showed that the mean squares due to E + (G x E) interaction was partitioned into G x E (linear) and pooled deviation (nonlinear components). Mean sum of squares due to G x E (linear) component and pooled deviation (nonlinear component) was significant for all the characters. The genotypes Raj 3765, Raj 3777, Raj 4238 x WH 1021, Raj 3077 x Raj 3777 had higher yield and were suitable for variable environmental conditions. These genotypes could be utilized as a donor in routine breeding programme to improve grain yield and its contributing traits in bread wheat.
Keywords: Bread wheat, stability, Grain yield, Genotype x environment interactions
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