Indian Society of Genetics & Plant Breeding

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COMBINING ABILITY ANALYSIS OF GRAIN YIELD AND OIL CONTENT ALONG WITH SOME OTHER ATTRIBUTES IN MAIZE (ZEA MAYS L.)

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Combining ability analysis was carried out in a 6 X6 diallele of maize for grain yield and
oil content along with their component characters in kharif and rabi seasons. Results from
pooled analysis over seasons reveale~that nonadditive gene effects were more important
for grain yield, oil content, number of rows/ear, number of grains/row and ear length,
whereas for maturity, ear diameter, 10o-grain weight and embryo size the additive gene
effects exhibited predominant role. Gca was less influenced by environmen~than sca for
all the characters except rows/ear, grains/row, and oil content. The line Sarhad "SRU proved
to be a good general combiner for both grain yield and oil content. Five out of the 15 Fl
hybrids evaluated have been identified to be good specific combiners for grain yield,
whereas three crosses gave desirable significant sca effects for oil content.
 

Keywords: Diallel, combining ability, maize.

Info

Year: 1994
Volume: 54
Issue: 4
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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