National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Sunflower (Helianthus annuus L.), a member of the family Asteraceae, is the fourth most important oilseed crop in the world. In India commercial cultivation of sunflower was started during 1972 while first sunflower hybrid developed in 1980based on new sources of cytoplasmic male sterility (CMS). Single source of cytoplasm PET-1 derived from an interspecific cross between H.petiolaris and H.annuus has been exploited extensively for hybrid production in sunflower. Which give red alert of genetic vulnerability. Introduction of different cytoplasmic backgrounds into hybrid production will permit to increase the general variability of the cultivated sunflower and to avoid problems like genetic vulnerability. For the purpose new CMS sources have been obtained from H. petiolaris, H. annuus, H. argophyllus, H. bolandery, H. debilis, H. exilis, H. giganteus, H. maximiliani, H. ncglectus, H. niveus, H. praecox, H. rigidus (pauciflorus) and H. strumosusetc.
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