Vol. 10, Issue 12 (2021)

Author(s):
Nayana KR, Srinivasa V, Devaraju, Dushyanth Kumar BM and Nataraj SK

Abstract:
Study entitled “Heterosis and combining ability studies in tomato under protected condition” was undertaken to estimate the combining ability effects to find out superior cross combinations for their further exploitation. The experimental material comprises of five parents viz., EC 362941, EC 15127, EC 521061, EC 521069 and VRT 13 with their twenty crosses, which were developed through full diallel mating design. The parents and hybrids were randomized separately and sown using Randomized Block Design during 2020-21. The results revealed that among the parents, EC 362941was found good general combiner for pericarp thickness, shelf life, chlorophyll content and firmness. Parent EC 521069 found good general combiner for TSS, beta carotene content and lower titratable acidity. Parent VRT 13 were considered as good general combiner for lycopene, lower number of locules and total sugars. The highest significant desirable SCA effect was observed by the cross combination EC 362941 x EC 521069 for most of the quality traits under study. Five quality characters each showed GCA to SCA ratio lesser and more than the unity indicating the predominance of both additive and non-additive gene action in tomato.