Indian Society of Genetics & Plant Breeding

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COMBINING ABILITY ANALYSIS OF SEED YIELD AND OIL CONTENT IN BRASSICA /UNCEA (L) COSS & CZERN.

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Combining ability analysis of a 10 x 10 diallel set of crosses in Indian mustard for
ten characters revealed preponderance of non-additive gene action for most of the
characters including seed yield and oil content. Additive genetic variance was more
important for plant height and length of siliqua for which high estimate of heritability
was also observed. The parent Pusa Barani was the best general combiner for seed
yield, oil content, 1000 seed weight, days to flowering, plant height, length of main
axis and length of siliqua. Varuna and RH-30 were also good general combiners
for seed yield and several other characters. Poorbijaya and Glossy mutant showed
desirable g.c.a for dwarfness also. Among the crosses, Pusa Barani x Glossy mutant
showed superior sca effects for seed yield, oil content, plant height, primary branches
and length of main axis. Majority of the crosses showing high sca effects for seed
yield involved high x low gca parents.
 

Keywords: Combining ability, Brassicia juncea, diallel, transgressive segregates.

Info

Year: 1998
Volume: 58
Issue: 4
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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