Breeding and Identification of Superior Sunflower (Helianthus Annuus L.)Hybrids for West Bengal

摘要

An experiment was carried out during rabi-summer season of 2014-15 and 2015-16 under AICRP Sunflower, Nimpith Centre, South 24 Parganas, West Bengal, to identify the suitable sunflower hybrids growing in rabilrabi-summer season for west Bengal. A total of 32 sunflower hybrids were evaluated. The experiment was laid out in Randomized Complete Block Design with three replications. The plot size was 4.5m x 3.0 m. The experiment was conducted by the AICRP-Sunflower, Nimpith centre at Research Farm, Baruipur under Calcutta University and Radhakantapur village (Nimpith Centre-adopted Village) as Multi location trial. In this study, highly significant genetic differences were observed among the sunflower hybrids in respect to the plant height at harvest, head diameter, seed weight per head, 100-seed weight, days to 50% flowering, days to maturity, husk content (%), volume weight (g/lOOcc), oil percentage and oil yield (kg/ha). The field observation reveals that the hybrids developed from Nimpith Center viz. CMS-607 A x R 273, CMS-607A x RHA-95C-1 .CMS-607 A x R-83, & CMS-207 Ax R-83 have significantly out yielded and the best check KBSH-44(668 kg oil /ha) in. respect to oil yield (kg/ha)by recording oil yield of 836 kg/ha, 817 kg/ha, 810 kg/ha and 794 kg/ha respectively. The hybrids, RSFH-188"/(796kg oil /ha) & SMLHT KH-12-04(796 kg oil/ha), SMLHT KH-12-03(784 kg oil/ha) and LSFH-17K719 kg oil/ha)recorded significantly high oil yield(kg/ha) than check hybrids KBSH-44 (668kg oil/ ha) and DRSH-1 (696 kg oil /ha). Considering the other yield attributing parameters like plant height and days to maturity; the sunflower hybrids, CMS-207A X R-83, CMS-607 AX R 273,CMS-607A X R-83, SMLHT-KH-12-03, SMLHT-KH-12-04, were the superior sunflower hybrids developed oridentified by the Nimpith centre on basis of their performance in multi locatioa trials (MLT) and Station Hybrid Trial. The seed yield of the above said sunflower hybrids were recorded at par with the KBSH-44 but significantly higher oil yield (Kg/ha) coupled with 7-10 days earliness and 30-50 cm shorter plant height at harvest over the other hybrids and check hybrids.