Article Id: ARCC2703 | Page : 171 - 176
Citation :- COMBINING ABILITY STUDIES IN DIVERSE CMS SOURCES IN SUNFLOWER (HELIANTHUS ANNUUS L.).Indian Journal Of Agricultural Research.2007.(41):171 - 176
V. Gouri Shankar, M. Ganesh, A.R.G. Ranganatha, A. Suman and V. Sridhar
Address : Department of Genetics and Plant Breeding, College of Agriculture, ANGRAU Hyderabad and Directorate of Oilseeds Research, Rajendranagar, Hyderabad - 500 030, India


Combining ability studies were made in sunflower using line x tester analysis with seven
diverse CMS lines (representing three cytoplasmic sources) and eleven testers. Analysis of
variance revealed significant differences among the genotypes i.e., parents and hybrids. Nonadditive
type of gene action was found important for expression of all the characters studied.
Among the lines, ARM 243B was found to be good general combiner for seed yield, oil content,
oil yield, head diameter, number of filled seeds per head and 100 seed weight. R 272-1 and R-
17 were good male parents for seed yield and oil yield. The cross combination PF-400A x P-
356R was found to be promising for most of the characters such as seed yield, oil yield, early
maturity, head diameter, stem diameter, number of filed seeds per head, seed filling per cent
and 100 seed weight. Besides PET-1 source, other sources viz., CMS PEF and CMS I used in the
present investigation were equally efficient in expressing their fullest potential of yield and yield
contributing characters.



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