Indian Society of Genetics & Plant Breeding

Important

GENETIC POTENTIAL OF INDUCED MUTANT RESTORER LINES FOR PRODUCING HIGH YIELDING EARLY MATURING SUNFLOWER HYBRIDS

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Twenty five Mz mutant lines, derived from 0.3 and 0.40/0 ethyl methane sulphonate (EMS)
treatment of RHA-298 were crQssed with two standard cytoplasmic male sterile lines, viz.,
CM5-234A and CM5-851A. The resultant 50 hybrids along with two check hybrids,
analysed in line x tester design, exhibited significant gca and sca variance. Some mutant
lines (Pt, Ps and P15) with very high gca effects for majority of charac,ters were identified
for use in breeding prQgramme. Crosses with high sea effects invDlved parents with low x
low gca effects. The CM5-234A X Pt5 hybrid showed higher heterQsis for seed yield than
the control Ft hybrids and was also early.
 

Keywords: Induced mutants, combining ability, sunflower.

Info

Year: 1996
Volume: 56
Issue: 1
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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