Indian Journal of Agronomy
  • Year: 2004
  • Volume: 49
  • Issue: 4

Effect of sowing time on the performance of sunflower (Helianthus animus) cultivars in rice (Oryza sativa) fallow vertisols of northern Karnataka

  • Author:
  • B.N. Reddy, S.N. Sudhakara Babu, G. Ravishankar, B. Sahadeva Reddy, A. Jayaprada
  • Total Page Count: 3
  • Page Number: 275 to 277

Agricultural Research Station, University of Agricultural Sciences, Gangavati, Karnataka, 583 227

1,2,4Present address: Directorate of Oilseeds Research. Rajendranagar, Hyderabad, Andhra Pradesh 500 030

3 Regional Research Station, ANGRAU, Nandyal, Andhra Pradesh

Abstract

The effect of sowing time on the performance of sunflower (Helianthus annuus L.) grown under rice (Oryza sativa L.) fallow situations was studied during 1997 and 1998 in Vert/sols of northern Karnataka Early sowing resulted in better growth and recorded higher seed yield of 1,016 kg/ha and 1,010 kg/ha during 1997 and 1998 respectively. Early-planted crop gave 44.3% higher seed yield than late-planted one. Hybrids outyielded variety ‘Morden’. The hybrid ‘KBSH 1’ recorded the highest average seed yield (965 kg/ha), followed by ‘PAC 36’ (922 kg/ha). Similarly, the highest oil yield of 385 kg/ha was also obtained in ‘KBSH 1’. The productivity of all the cultivars was reduced under delayed sowing.

Keywords

Sunflower, Sowing time, Rice fallows, Vertisols