The present investigation was conducted to study the effect of seed rate on the root yield and
quality of ashwagandha. (Withania somnifera Dunal) successively for three years during 2004-05 to
2006-07. There were five seed rates viz.,6 kg (S1), 7 kg (S2), 8 kg (S3) , 9 kg (S4) and 10 kg (S5) per
hectare tried in randomized block design with four replications. Significantly highest root length was
noticed with the seed rate of 10 kg ha-1. (S5).Significantly highest root yield, GMR and NMR was
noticed with the seed rate of 10 kg ha-1 (S5), however, it was at par with 9 kg ha-1 (S4).The Incremental
Cost Benefit Ratio (ICBR) ratio was also found higher with 9 kg seed per hectare.