Morphological Characters of Tomato in Relation to Resistance against Tomato Fruit Borer, Helicoverpa armigera (Hubner)

The study on relation of morphological characters to fruit infestation of H. armigera was conducted in College Farm, N.M.C.A, Navsari Agricultural University, Navsari, Gujarat during two consecutive years 2012-13 and 2013-14. The result showed that the correlation of plant height (r= 0.7775), branches plant^-1 (r= 0.7874), and fruits plant^-1 (r= 0.7388) with infestation of H. armigera were significantly positive, while the effect of fruit pericarp thickness (r= - 0.9576) exhibited significantly negative association with the damage of tomato fruit borer. However the stem diameter, fruit diameter, locules fruit^-1 and calyx fruit^-1 showed positive but non-significant association with fruit infestation recorded 0.4855, 0.3048, 0.3413 and 0.3943 correlation values, respectively.