International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 4
First page : (1835) Last page : (1840)
Article doi: http://dx.doi.org/10.18782/2320-7051.5738
Studies on Combining Ability and Gene Action for Growth and Quality Characters in Tomato (Solanum lycopersicum L.)
D. Triveni1*, P. Saidaiah2, K. Ravinder Reddy3 and S. R. pandravada4
1,Department of Vegetable Science, College of Horticulture, Sri Konda Laxman Telangana State Horticulture University, Rajendranagar, Hyderabad-500030, Telangana, India
2Department of Genetics and Plant Breeding, SKLTSHU, Rajendranagar, Hyderabad-500030, Telangana, India
3Department of Vegetable Science, SKLTSHU, Rajendranagar, Hyderabad-500030, Telangana, India
4Economic Botany, NBPGR Regional Station, Rajendranagar, Hyderabad-500030, Telangana, India
*Corresponding Author E-mail: triveni23dharoor@gmail.com
Received: 28.07.2017 | Revised: 9.08.2017 | Accepted: 10.08.2017
ABSTRACT
The present investigation was undertaken to study the combining ability of the parents and crosses for yield and yield contributing traits in tomato using twenty one hybrids involving seven lines and three testers in line x tester mating design. The genotypes were evaluated in Randomized Block Design with three replications at college of horticulture, SKLTSHU, Telangana. The present study revealed that none of the parent was best combiner for all the traits indicating differences in genetic variability for different characters among the parents. Line x Tester effect was found significant for all the characters under the study except for days to first flowering and days to last harvest. Combining ability analysis revealed that magnitude of specific combining ability variance was greater than general combining ability variance suggesting the predominance of non-additive gene action for all the characters studied. The gca effects of the parents revealed that EC 620494 and EC 654289 and testers Arka Meghali and Pusa Ruby were found to be promising general combiners for growth and quality traits. Based on significant sca effects three hybrids viz.,LA 3667 x Arka Vikas, EC 631407 x Pusa Ruby and EC 654289 X Pusa Ruby were identified as promising for growth and quality characters.
Key words: Tomato, Combining ability, Gene action, Gca, Sca.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Triveni, D., Saidaiah P., Reddy, K.R. and Pandravada, S.R., Studies on Combining Ability and Gene Action for Growth and Quality Characters in Tomato (Solanum lycopersicum L.), Int. J. Pure App. Biosci.5(4): 1835-1840 (2017). doi: http://dx.doi.org/10.18782/2320-7051.5738
