International Journal of Bio-resource and Stress Management

The field experiment was conducted during autumn-winter (October to December) seasons of 2017–18 and 2018–19 at Horticultural Farm of Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar, West Bengal, India. Treatments comprised of four planting dates viz., D₁: 21^st October, D₂: 28^th October, D₃: 7^th November, D₄: 14^th November and four spacing viz., S₁: 30×45 cm², S₂: 45×45 cm², S₃: 60×45 cm² and S₄: 60×60 cm² were assessed in factorial randomized block design with three replications. The broccoli transplanted on 21^st October (D₁) reported significantly maximum head weight (464.95 g) and projected yield (11.46 t ha^-1) which was statistically at par with 2^nd date of planting D₂ i.e 28^th October (423.91 g and 11.03 t ha^-1 respectively) over the other dates of planting, while the wider spacing S₄ i.e. 60×60 cm² showed significantly maximum head weight (400.74 g) over other spacing’s and closer spacing S₁ i.e 30×45 cm² had recorded significantly highest yield (13.48 kg plot^-1 and 14.98 t ha^-1). Interaction between date of planting and spacing was significant in respect of head yield per hectare. Maximum projected head yield (17.19 t ha^-1) was obtained in D₁S₁: 21^st October and 30×45 cm² combination. After adopting the planting dates from October 21^st (D₁) to October 28^th (D₂) and closer spacing of 30×45 cm² (S₁) was found more gainful in terms of yield and other growth parameters also.