Sunflower (Helianthus annuus) cultivation has started recently in some districts of terai region
of Nepal. Hybrid sunflower performed better than population. Looking in to bright prospects of
this crop interai of Nepal, tlte present study was under taken with a view to verify tlte adoption
performance of crop in spring and rainy seasons, and compare tlte performances of hybrids. witlt
composite varieties in respect of yield, a field experiment was conducted at Oilseed Research
Program, Nawalpur Sarlalti during 1998 and 1999 spring as well as rainy season under irrigated
and rainfed condition, respectively. Hybrid sunflower varieties recorded 72 percent higher seed
yield over composite in spring season. Hybrids PAC-36 produced higher seed yield of 2056
kg/ba followed by PAC-302 (2014 kg/Ita) and NSFH-592 (1850 kg/ha) in spring season. In
rainy season PAC-36 recorded highest mean seed yield of 720 kg/Ita followed by Peredovick
(597 kg/Ita).

Sunflower (Helianthus annuus) cultivation has started recently in some districts of terai region
of Nepal. Hybrid sunflower performed better than population. Looking in to bright prospects of
this crop interai of Nepal, tlte present study was under taken with a view to verify tlte adoption
performance of crop in spring and rainy seasons, and compare tlte performances of hybrids. witlt
composite varieties in respect of yield, a field experiment was conducted at Oilseed Research
Program, Nawalpur Sarlalti during 1998 and 1999 spring as well as rainy season under irrigated
and rainfed condition, respectively. Hybrid sunflower varieties recorded 72 percent higher seed
yield over composite in spring season. Hybrids PAC-36 produced higher seed yield of 2056
kg/ba followed by PAC-302 (2014 kg/Ita) and NSFH-592 (1850 kg/ha) in spring season. In
rainy season PAC-36 recorded highest mean seed yield of 720 kg/Ita followed by Peredovick
(597 kg/Ita).