Evaluation of Genetic Variations of Tomato Genotypes (Solanum lycopersicum L.) with Multivariate Analysis

Abstract

In order to evaluate genetic variations of tomato genotypes, an experiment carried out in Kahriz station during two seasons in 2010-11. Experimental design was randomized complete blocks with three replications. Combined analysis of variance showed that for agronomic and quality related traits were significant differences. Selb-Jino, TO2, Early-Urbana, Carmina, Cal-J-N and Falat-Shof with more than 10.5 kg/m 2 had the highest fruit yield. With increasing fruit number per plant decreased fruit weight. Carmina had 170cm plant height and indeterminate growth. TO4, Chase, Selb-Jino and Carmina with more than 5.2% had the most total soluble solid. Cluster analysis classified genotypes in two groups. Flower inflorescence had the most significant regression coefficient (0.63) with fruit yield. Two first components explained 97% of total variations in principal components analysis. Correlation coefficients of fruit yield with fruit number at per plant (r=0.49 * ), number of flower per inflorescence (r=0.48 * ) were positive significant differences. With delaying fruit maturity decreased fruit number (r=- 0.78**), increased fruit weight (r=0.80**) and pH (r=0.71**). Therefore, genotypes with more fruits had low pH (r=-0.75**). From the point of fruit shape Carmina, Nina, Selb-Jno and BSS282 were quite uniform. TO4 and TO2 had the most fruit color and Carmia, Falat-CH, Super-Srin-B, Shof, Falat-Y and Seb-Jino were the lowest values. Fruit firmness of cultivars was in four groups. Blossom-end rot in BSS282, Tima and TO4 were less than others.