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ABSTRACT: The experiment was conducted at the experimental field of the Department of Entomology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during Rabi season of 2019-20 to investigate the growth and yield performance of mustard varieties without taking insect pest and disease management approach. The experiment was arranged in a randomized complete block design consisting of seven mustard varieties, viz. BARI Sarisha-11, BARI Sarisha-12, BARI Sarisha-13, BARI Sarisha-14, BARI Sarisha-15, BARI Sarisha-16, and BARI Sarisha-17 as treatments and replicated thrice. All the growth and yield attributes including yield, substantially varied among the mustard varieties except the phenological parameters. The findings showed that varieties differed significantly in the durations of their vegetative and reproductive stages except branch initiation. The lowest duration was BARI Sarisha-12 (72.5±12.0 days) and the highest duration for crop maturity was recorded in BARI Sarisha-11 (118.3±2.0 days). There was significant variation in seed yield (t/ha) and harvesting index (HI) among the varieties but there was no statistical variation in seed yield/plot and 1000-seed and weight. BARI Sarisha-13 secured the highest seed yield (2.1±0.2 t/ha) and harvest index (HI) (34.5±1.3%), therefore this variety is recommended for cultivation for higher yield.
Keywords: Marginal pest management, Brassica, growth, biological yield, Harvest Index (HI).
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