Stability analysis for growth, yield and quality characters of tomato (Solanum lycopersicum L)
2009
Thapliyal, Alok | Singh, J.P.
The existence of genotypes x environment interactions was frequently used by plant breeders for measuring stability of selected genotypes performance. The magnitude of the statistical variance make possible to select entries with high potential yield, and other character of stability, including in tomato as well. The experimental material consisted of thirty three genotypes. All these thirty three genotypes were evaluated over three environments i.e., summer and winter of 2006 and winter of 2007. Highly significant differences were observed among genotypes for all thirteen characters under observation viz., plant height (cm), number of primary branches per plant, days to 50% flowering, number of flower clusters per plant, days to 50% fruit set, days to first harvest, days to last harvest, average fruit weight (g), number of locules per fruit, fruit weight per plant (g), number of fruits per plant, TSS (%) and yield (q/ha). The differences among the environment were also highly significant for all characters except plant height where it was significant only. While this component was non-significant for number of locules per fruit. The analysis of variance revealed the presence of genotype-environment interaction for plant height, days to 50% flowering, number of flower clusters per plant, days to 50% fruit set, days to first harvest, days to last harvest, average fruit weight, fruit weight per plant, number of fruits per plant and yield (q/ha).
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