RESPONSE OF HYBRID RICE VARIETIES TO THE SYSTEM OF RICE INTENSIFICATION (SRI) IN BORO SEASON

Abstract

An experiment was conducted during the period of December 2015 to May 2016 at central agricultural research farm of Sher-e-Bangla Agricultural University Dhaka-1207, Bangladesh to study the response of hybrid rice varieties to the System of Rice Intensification (SRI) in Boro season. Treatment consisted of two factors; factor A consists of three levels of system of rice cultivation i.e.1. Low land transplant condition (T ), 2. Raised upland condition (T 2 ), 3.Raised transplant condition (T 3 1 ); and factor B consists of five varieties i.e. BRRI hybrid dhan3 (V 1 ), Bolaka (V 2 ), Moyna (V ), Gold (V 4 ), BRRI dhan45 (V ). Results indicated that the highest values of vegetative growth i.e. plant height, leaves hill 5 -1 , leaf area index, Chlorophyll content, tillers hill -1 , dry matter hill -1 ; yield contributing character i.e. number of grains panicle -1 , 1000 grains weight, yield and harvest index were the highest in low land transplant condition (T 1 ) and in BRRI hybrid dhan3 (V ). The combined effect of T 1 V gave the best result for all vegetative parameters and reproductive development. Therefore, low transplant condition (T 1 ) with BRRI hybrid dhan3 (V ) could be the best the combination to get higher yield.