Combining ability of seven resistance characteristics of Lycopersicon spp. to tomato leafminerUsing the partial diallel methodology, interspecific hybrids of tomato were obtained, in order to study the general and specific combining abilities (GCA and SCA, respectively) between two groups of Lycopersicon spp. Seven characteristics of tomato resistance to Tuta absoluta were evaluated. Significant differences regarding the majority of the evaluated traits were observed. Based on GCA, the genotypes Ângela, Santa Clara, LA 716 and LA 1777 are the most indicated to be used in a breeding program to improve the tomato resistance to T. absoluta. The best hybrids, considering SCA and heterosis, were Ângela x PI 126445, Ângela x PI 127826, IPA-5 x LA 1777 and Santa Clara x LA 716.
Tuta absoluta; tomato; plant breeding; biometry
