Effect of sowing dates and plant geometry on seed yield of canola (Brassica napus var. canola).

摘要

A field experiment was conducted at Ludhiana during rabi 2003-04 and 2004-05 to find out the optimum date of sowing and plant geometry for canola variety GSC-5. The crop sown on 20 October produced significantly higher seed yield and yield attributes as compared to the crop sown on 30 October, 10 November and 20 November but remained at par with 10 October sown crop. This sowing date gave 15.8, 21.3, 37.2 and 57.5% higher seed yield over 10 October, 30 October, 10 November and 20 November sown crop, respectively. Among the plant geometries, uni-directional sowing with 30x15 cm spacing produced significantly higher seed yield than uni-directional sowing with 45x15 cm spacing and bi-directional sowing with 30x15 cm spacing but was at par with bidirectional sowing with 45x15 cm spacing.