Combining ability studies for yield and its component traits in safflower (Carthamus tinctorius L.)
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Combining ability studies for yield and its component traits in safflower (Carthamus tinctorius L.)
Authors
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P B WADIKAR
College of Agriculture, Latur, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani-431 402
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S L DHARE
College of Agriculture, Latur, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani-431 402
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S L WAGHMODE
College of Agriculture, Latur, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani-431 402
Keywords:
Coefficient of variation, Combining ability, GCA, Safflower, SCA, TestersAbstract
Combining ability for ten characters was studied by crossing three lines and five testers in line x tester fashion.
The estimates of SCA variance were not higher than GCA variance in most of the traits indicating preponderance of non-additive gene action. The line, GMU-2720 had significant positive GCA effects for seed yield/plant, number of branches, number of capitula/plant, number of seed/capitulum, and oil content whereas significant negative GCA effects for days to 50% flowering, days to maturity and plant height. The cross, GMU-2720 x GMU-3423 and JMU1339 x PBN-96 were best for majority of the characters and thus identified as promising cross combinations for further improvement programme in safflower.
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References
Rashid M A A, Cheema and Ashraf M 2007. Line × Tester analysis in basmati rice. Pakistan Journal of Botany. 39(6): 2035-
Kempthorne O 1957. An Introduction to Genetic Statistics, John Wiley & Sons, New York, NY, USA.
Singh R K and Chaudhary B D 1979. Biometrical Methods in Quantitative Genetic Analysis. Second edition, Ed. Kalyani
Publishers, New Delhi, India, pp.191-201.
