Heterosis Studies for Oil Content, Yield and Yield Contributing Characters in Hybrids of Sunflower

The prevailing investigation was undertaken with the goals to study the heterosis for oil content, seed yield and its components traits in sunflower. Six female lines were crossed with 4 male lines in order to obtain 24 F1s. The crosses and parents with checks, have been evaluated in a Randomized Block design with two replications, at experimental farm at Oilseeds research station, Latur. Data had been recorded on ten characters. An extensive range of heterosis for all the characters was determined in two hybrids viz., CMS-108A x EC-198075 and CMS-108A x EC-601957, exhibited significant negative heterosis for early flowering and days to maturity over each check LSFH-35 and LSFH-171.The hybrids viz., CMS-207A x IB-22 and CMS-207A x EC-178178 recorded excessive significant heterosis in desirable direction over each standard check LSFH-35 and LSFH-171for yield and yield components.