Hybrid CO2 - A high yielding sunflower hybrid for Tamil Nadu

Abstract

The importance of hybrids in sunflower has increased recently because of their higher seed yield compared with crosspollinated varieties. Hybrids of sunflower are more stable, highly self-fertile, with high yield performance, and more uniform at maturity. Hybrid CO2 has been released as a high yielding sunflower hybrid suitable for Tamil Nadu during 2010. This hybrid was tested in station trials, Multi-Location Trial, Adaptive Research Trial, AICRP trials and On Farm Trials. Based on the overall performance, this hybrid has the potential of 1950 and 2230 kg/ha seed yield under kharif and rabi / summer situations respectively. The yield increase over Sunbred 275 and TCSH 1 are 13.4 and 17.1 per cent respectively under kharif conditions. Similarly, in rabi / summer conditions, this hybrid out yielded Sunbred 275 and TCSH 1 by 12.9 and 15.9 per cent respectively. This hybrid has high oil content of 39.8 per cent on seed basis and high volume weight (48 g/100 ml).

Keywords

• sunflower
• hybrid
• hybrid co2
• seed yield