Indian Society of Genetics & Plant Breeding

Genetic analysis of xenia effects in high oil maize lines

Published on

Twenty high oil inbred lines and three normal maize testers
were mated in a Line x Tester mating design and 60 crosses
were developed to study the xenia effect of high oil inbred
lines on the three normal maize testers and the gene
action. Xenia analysis of F1 seeds along with the parents
and checks was carried out. Mean squares due to parental
seeds and F
1 seeds were found significant for all
characters. Additive gene action was found important for
embryo weight and endosperm weight whereas dominance
gene action was found important for protein content and
in case of oil content both additive and dominance gene
action were of equal importance. Six lines viz., L11, L12, L16,
17, L6 and L3 were observed to be good combiners for oil
content along with tester T3. Oil content and protein
content of the F
1 seeds was higher than the check hybrid
Buland. Ratio of endosperm weight/embryo weight of
these F
1 seeds was less than the check hybrid Buland.
Present studies revealed that use of high oil pollinators
lead to improvement in oil content of F1 seed.

Keywords: Zea mays L., line x tester, xenia effect and oil content


Year: 2008
Volume: 68
Issue: 4
Article DOI: N/A
Print ISSN: 0019-5200
Online ISSN: 0975-6906



Download PDF