Article Id: ARCC4776 | Page : 286 - 288
Citation :- EVALUATION OF THREE WAY CROSS HYBRIDS IN SUNFLOWER.Agricultural Science Digest.2004.(24):286 - 288
V. Jayalakshmi and B. Narendra
Address : Regional Agriculturdl Research Station, ANGRAU, Nandyal - 518 503, India


Thirty-six three way cross hybrids along with two popular single cross hybrids (as checks) were studied. None of the three way cross hybrids were significantly superior to the best check. However seven three way cross hybrids viz., (CMS 207 A x 7–1 B) x RHA 274, (CMS 852 A x 234 B) x RHA 297, (CMS 850 A x 852 B) x RHA 297, (CMS 852 A x 234 B) x MRHA 1, (CMS 234 A x 852 B) x MRHA 1, (CMS 234 A x 302 B) x RHA 297, (CMS 852 A x 234 B) x RHA 87/1206/1 had seed yields at par with the best check MSFH 17, which may be preferred over single cross hybrids for their advantage in reducing seed production costs, CMS lines and maintainers from diverse cytoplasmic sources like CMS 1, CMS PF, CMS PET 2, CMS GIG 1, etc. must be employed further for improving yield levels of three way cross hybrids and also to avoid the risk of single cytoplasm (Helianthus Petiolaris) becoming vulnerable to new strain of pest or disease.



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