Vol. 8 (1) : January-February 2017 issue
Green Farming Vol. 8 (1) : 56-59 ; January-February, 2017
Studies on combining ability analysis in tomato
G. ESWARA REDDYa1*, R. NANDANa2, M.P. REDDYa3, B. RAJASEKHAR REDDYb4 and H.R. BHANDARIa5
aDepartment of Genetics and Plant Breeding, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi - 221 005 (Uttar Pradesh) bICAR-Indian Institute of Vegetable Research (Jakhani, Shahanshapur), Varanasi - 221 305 (Uttar Pradesh)
Designation : 1,3,5Res. Scholar *(eswarmaagrico@gmail.com), 2Professor, 4Scientist
Subject : Crop Genetics and Plant Breeding
Paper No. : P-5044
Total Pages : 4
Received : 19 April 2016
Revised accepted : 15 December 2016
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Citation :
G. ESWARA REDDY, R. NANDAN, M.P. REDDY, B. RAJASEKHAR REDDY and H.R. BHANDARI. 2017. Studies on combining ability analysis in tomato. Green Farming Vol. 8 (1) : 56-59 ; January-February, 2017
ABSTRACT
Forty hybrids generated from crossing ten lines with four testers were studied along with parents for combining ability in tomato. The general combining ability (GCA) and specific combining ability (SCA) were significant for all the characters, indicating the importance of both additive and non-additive genetic components. But it is found that there was predominance of non-additive genetic components for expression of different traits in the present set of materials. Amongst the lines, CO-3, Pant T-3 and Flawery were best general combiners for yield along with other traits, whereas among the testers H-24 and H-86 were best general combiner for yield along with other traits. The most promising specific combiners for yield and other traits were Flawery × Sel-7, Fla-7171 × Azad T-5, GT-20 × Azad T-5, C0-3 × Sel-7, B-S-31-3 × H-24. Hence, the present study was carried out to obtain information on combining ability involved in expressing the different characters in tomato.
Key words :
Additive genetics, Combining ability, GCA, Genetic components, SCA, Tomato, Yield attributes.
