The research work was conducted at the Agronomy Field Laboratory of Bangladesh Agricultural University, Mymensingh during to study the effect of age of seedlings and spacing on the performance of transplanted aus rice cv. BR3. The results showed that the seedling age had significant influence on the various characters under study except 1000-grain weight. The highest number of tillers hill-1 (16.69), number of grains panicle-1 (136.39) and the highest grain yield (4.80 t ha-1) were obtained from the treatment 25-day old seedlings. The lowest straw yield (6.88 t ha-1) was also recorded from the same treatment. Spacing also showed significant effect on the studied characters except panicle length and 1000-grain weight. The highest grain yield of aus rice (1.15 t ha-1) were obtained from 15 cm x 15 cm spacing. Results of the study also noted that 25-day old seedlings with 15 cm x 15 cm spacing may be practiced to the farmer level as well as obtain optimum grain yield from transplanted aus rice cv. BR3.
Key words: Seedling age, spacing, aus rice.
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