Genotype X Environment Interaction and Stability Analysis for Yield and Its Attributes in Tomato (Solanum Lycopersicum L.) Savale S. V., Patel A. I.* Department of Vegetable Science, ASPEE College of Horticulture & Forestry, Navsari Agricultural University, Navsari-396 450, Gujarat, India *email: akshay742000@yahoo.co.in
Online published on 23 December, 2016. Abstract Genotype responses to changeable environmental factors as expressed through genotypes x environment interaction offers important information to growers as end users. A total of 45 genotypes (32 hybrids + 12 parents + 1 commercial check) of tomato were evaluated for their stability, with respect to yield and its contributing traits, in three different locations of the Navsari Agricultural University, Navsari Gujarat during late kharif 2014–15. The pooled analysis of variances indicated that genotypes x environment interactions were highly significant for plant at harvest (cm), number of branches per plant at final harvest, number of clusters per plant, number of fruits per plant, average fruit weight (g) and fruit yield per plant (kg). Linear as well as non-linear component of G x E interactions were found to be significant for these characters indicating that response of genotypes varied in different environments. In general, all the genotypes did not show any uniform stability and linear pattern for all the traits. In present experiment, the parent viz., AVTO-4 and the hybrids AVTO-6 x GT-2 hadhigh mean value over population mean, closer to one regression coefficient (bi) and low and non-significant deviation from regression and was highly stable for yield per plant. These genotypes also given stable performance to some yield attributes also. These genotypes are likely to perform well in all the three environments. Top Keywords Tomato, Stability analysis and G x E interaction. Top |