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.
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906
R. K. SUGOOR, K. GIRIRAJ, P. M. SALIMATH AND N. G. HANAMARATTI info_circle