Variability and correlation studies in bacterial wilt resistant advanced tomato lines (Solanum lycopersicum L.)

Twenty bacterial wilt resistant lines including recently developed at CSKHPKV, Palampur (08) were studied to ascertain the extent of genetic variability, type and magnitude correlation between component characters & marketable yield, as well direct indirect impacts every character on yield. For all variables except plant survival, analysis variance exhibited significant differences across genotypes. Phenotypic coefficient variation (PCV) genotypic (GCV) values for lycopene content (80.581%, 80.148%), titrable acidity (73.666%, 71.219%), yield / (53.953%, 52.598%), fruits (34.994%, 34.050%), gross (34.094%, 30.553%), average weight fruit (30.558%, 29.13%), locules (28.549%, 25.050%), ascorbic acid (23.641%, 20.919%) respectively, found high different parameters variability. Marketable (95.043%, 45.633%), /plant (94.68%, 68.252%), (93.467%, 48.838%), (90.877%, 57.206%), (80.305%, 56.402%), (78.295%, 38.130%), (76.985%, 45.276%) with heritability advance. was significantly positively associated (0.734, 0.795), (0.774, 0.853), 0.742), pericarp thickness (0.693, 0.806), (0.381, 0.469), (0.347, 0.364) locules/ (0.284, 0.345) both phenotypic levels, respectively. Path showed that (0.589, 0.608), (0.278, 0.617) (0.382, 0.182) are three main had greatest positive impact respectively