Department of Agronomy, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Uttaranchal, 263124
1Present address: Division of Extension Education, Indian Veterinary Research Institute, Izatna-gar, Bareilly, Uttar Pradesh 243 122
An experiment was conducted during 1998 and 1999 at Pantnagar, to study effect of sowing time and irrigation on seed vigour and soil moisture and yield of sunflower (Helianthus annuus L.). Date of sowing and irrigation significantly influenced phenology, available soil moisture, seed-moisture contents and seed vigour. However, irrigation did not affect germination (%) and shoot length significantly. Seed-moisture content could also not affect by date of sowing significantly. Dormancy effect just after harvest and storability effect after 4 months were also observed.
Seed vigour, Yield, Soil moisture, Sowing date, Irrigation
