V. NIKOLOVA and V. RODEVA
Maritsa Vegetable Crops Research Institute, BG - 4003 Plovdiv, Bulgaria
NIKOLOVA, V., and V. RODEVA, 2006. Hybridization between Lycopersicon esculentum Mill. and Lycopersicon pennellii Cor.: Pollen fertility and viability in F1 and F2 hybrids. Bulg. J. Agric. Sci., 12: 767-774
In result of this investigation it was confirmed very high level of incompatibility between L. esculentum genotypes - line N83602029 and Balka F1 and self-incompatibility L. pennellii accession N914750050. Different preventing answers to the pollen germination and penetration in the stigma, style and ovary tissue and in the ovules in the reciprocal crosses of the both studied species were observed. In self pollination of F1 an F2 hybrids and also in backcrossing with the both parents were registered the same type of strong expressed incompatibility. Compared to the plants with high pollen fertility and semi-sterility lower level of incompatibility after self pollination was registered in F2 generation in a plant with 10% fertility. Successful pollen germination and entering the tubes in the ovules was established only in pollination of mother plants L. esculentum (Balka F1) with pollen from F1 hybrid N 336.