Vol. 7, Issue 1 (2019)
Genetic plasticity for yield and yield related traits in minicore accessions of tomato (Solanum lycopersicum L.)
Author(s): Gaurav N Chaudhari, B Fakrudin, GK Ramegowda, RK Ramachandra, Amruta S Bhat and HB Lingaiah
Abstract: Genetic plasticity for yield and quality traits in 260 minicore accessions of tomato was studied in Augmented Block Design (ABD). The genetic variability parameters were estimated for component parameters of yield. Analysis of coefficient of variation revealed that the magnitude of phenotypic coefficient of variation (PCV) was higher than the genotypic coefficient of variation (GCV) for all traits studied. High estimates of heritability and genetic gain were recorded for plant height, number of branches per plant, number of fruits per plant, number of locules per fruit, average fruit weight and total yield per plant. High level of variation was recorded for plant height (38.69 cm (Hisar Arun) (Sel-7) to 167.66 cm (VRT-101A)), number of primary branches per plant (4.08 (Fla -7421) to 11.11 (EC-620374)), number of fruits per plant (11.26 (Roma) to 286.29 (EC-520078)), number of locules per fruit (2.15 (BL-1208) to 7.23 (DMT1)), average fruit weight (1.45 g (EC-526139) to 118.76 g (EC-528372)), days to 50 per cent flowering (19.75 (Pusa Ruby) to 36.71 (EC-620370)), total soluble solids (3.00°B (WIR-13708) to 7.17°B (EC-620514)), yield per plant (7.75 kg (Pusa Ruby) to 42.75 kg (EC-520074)) and test seed weight (166.77 mg (97/754 (Kewalo) to 8596.4 mg (NDT-1)). Results suggested that straight forward simple selection for plant height, number of branches per plant, number of fruits per plant, number of locules per fruit, average fruit weight, days to 50 per cent flowering, total soluble solids, test seed weight and total yield per plant may bring significant gains in identifying superior genotypes in tomato. Accessions with desired traits can be directly used in generation of segregation population and F1 hybrid development.
Fig. 1: Frequency distribution of genetic variability parameters for yield component and quality traits in minicore accessions
Pages: 184-188 | 624 Views 79 Downloads
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How to cite this article:
Gaurav N Chaudhari, B Fakrudin, GK Ramegowda, RK Ramachandra, Amruta S Bhat, HB Lingaiah. Genetic plasticity for yield and yield related traits in minicore accessions of tomato (Solanum lycopersicum L.). Int J Chem Stud 2019;7(1):184-188.
