Yield Evaluation of Local Transplanted Aman Rice Varieties in the Coastal Region of Southwestern Bangladesh

Abstract

Transplanted (T.) aman is the major crop in the coastal region of southwestern Bangladesh and farmers are mostly habituated to cultivate late-maturing local aman rice varieties instead of high-yielding varieties for numerous interrelated social, environmental and economic reasons. Productivity and profitability are a prime concern for cropping and agricultural activities. Thus, the current research has been conducted in the aman seasson to evaluate the growth and yield performance of five locally popular local rice varieties (Jotai Balam, Bashful Balam, Chinikanai, Shorna and Koijhuri). The field experiment was arranged in a randomized complete block design with four replications. Analysis of variance showed that growth, yield attributes and yield were substantially influenced among the varieties. Among the different varieties, plant height was significantly higher in Chinikanai, yet Koijhuri produced the highest no. of tillers hill^-1, no. of grain panicle^-1, was significantly higher in Chinikanai but the grain weight panicle^-1 and 1000-grain weight was significantly higher in Bashful Balam and Koijhuri, respectively. Bashful Balam produced the maximum grain weight panicle^-1, seed yield (3.37 t ha^-1), and harvest index, yet the biological yield was highest in Koijhuri. The grain yield of Bashful Balam was increased by 8%, 55%, 61%, and 212% compared to Jatai Balam, Koijhuri, Shorna, and Chinikanai, respectively. From the findings of this research, it can be concluded that among the tested varieties, Bashful Balam is best in terms of productivity in the coastal region of southwestern Bangladesh.

South Asian J. Agric. Vol. 12, No. 1, Jun., 2026: 70-77