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 is the fourth most important oilseed crop in the world after soybean, Rapeseed-mustard and groundnut. It had 20 genera and 400 subspecies. Commercial cultivation of sunflower was started in India during 1972. In India, first ever sunflower hybrid developed by Seetharam (1980), the sunflower hybrids development is based on new sources of cytoplasmic male sterility (CMS). So far single source of cytoplasm PET-1 has been exploited extensively for hybrid (F1) production in sunflower. PET1 or French cytoplasm, which was derived from an interspecific cross between H. petiolaris and H. annuus. The CMS sources ARG-1 and ARG-3 have been produced by interspecific hybridization of the annual species. However several CMS backgrounds have been developed by interspecific and intraspecific crosses which resulted in more than 72 CMS sources. Nuclear male sterility in Sunflower is governed by individual recessive gene pair. In PET-1 cytoplasm is controlled by one dominant gene. Partial restoration of fertility observed in many source indicating presence of modifier gene PET-1 (ARM 243A) from H. Petiolaris.
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