Abstract

Binadhan-14 (Oryza sativa L.) is a late transplanting rice variety with high yield potential, developed for boro season by BINA in 2013. Effects of different transplanting dates to yield of Binadhan-14 were assessed at three locations in Bangladesh during boro season in 2014–15. BRRI dhan 28 was used as a check variety. At each location, one month old seedlings were transplanted at five different dates with 15-day intervals between February 1 and April 1, 2015. A randomized complete block design with three replications was used to lay out plots in the experiment. Transplanting dates significantly influenced grain yield and yield contributing parameters, such as plant height, panicles per hill, panicle length and filled grains per panicle, except for 1000-grain weight. The highest grain yields were obtained when the rice was transplanted on February 1 and 15, 2015. The highest yield of Binadhan-14 was obtained at Rangpur (6.75 t/ha), followed by Mymensingh (6.25 t/ha) and Magura (5.90 t/ha). Results of this study suggest that February 1 to 15 would be the best time to transplant Binadhan-14 as a late transplanting boro variety under the climatic conditions in Bangladesh.