Impact of row arrangements, age of tiller seedlings and number of tiller seedlings hill-1 on the growth performance of transplanted Aman rice (cv. BR23)

Abstract

The experiment was carried out at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh to see the effect of row arrangements, age of tiller seedlings and number of tiller seedlings hill-1 on growth of transplant Aman rice (cv. BR23). The experiment comprised three row arrangements viz. single, double and triple row; two ages of tiller seedling viz. 25 and 35 days and three levels of number of tiller seedlings hill-1 viz., 2, 4 and 6 tiller seedlings hill-1. The effect of row arrangement, age of tiller seedlings and number of tiller seedlings hill-1 were significant on plant height, number of leaves hill-1, number of total tillers hill-1, leaf dry weight, stem dry weight and total dry weight. The tallest plants at 70 DAT, the highest number of leaves and leaf dry weight were found at 25, 40, 55 and 70 DAT in single row arrangement which was as good as double row arrangement while shorter plant and the lowest number of leaves hill-1 were found in triple row arrangement. The highest stem and total dry matter production hill-1 were recorded in triple row arrangement and the lowest were found in single row arrangement. Wider spacing significantly increased plant height, total tiller production hill-1, leaf production hill-1and leaf dry matter production while closer spacing of triple rows enhance stem and total dry matter production hill-1. Transplanted Aman rice (BR23) can be grown in single rows for the highest plant height, more tiller production, leaf production and leaf dry matter production hill-1. In case of total dry matter production cv. BR23 can be grown in triple rows by transplanting 35-day old seedlings with 6 tiller seedlings hill-1