Influence of sowing date on the performance of rapeseed and mustard varieties under rainfed situation of southern Assam

摘要

The effect of sowing dates on the performance of toria (Brassica campestris L.) sub sp. oleifera (Sinsk.) Metzger var. toria) and Indian mustard [B. juncea (L.) Czernj. & Cosson] varieties grown under residual moisture conditions was studied after the harvest of kharif rice in Assam (India). Studies revealed that early sowing resulted in significantly better crop growth, yield and yield attributing characters in rapeseed-mustard crops. Among the varieties, M-27 (Toria), TM-2 and TM-4 (Indian mustard) were found promising. Indian mustard varieties outyielded toria varieties when sown on 17th or 26th November, while in later sowing dates the toria variety M-27 showed better performance.