INVESTIGATION OF MORPHO-CHEMICAL CHARACTERISTICS AND YIELD POTENTIAL OF FIVE HYV BORO RICE CULTIVARS

Abstract

A field experiment was conducted at the farm laboratory of Agricultural Chemistry Department, Hajee Mohammad Danesh Science and Technology University, Dinajpur, during the period from February to May, 2014 to study morphochemical, yield and yield contributing characters of five HYV boro rice varieties viz. BR11, BR16, BRRI dhan28, BRRI dhan29 and BRRI dhan50.The experiment was laid out in Randomized Complete Block Design with three replications. Results revealed that morphological, physiological, yield and yield attributes were significantly different among the cultivars studied. HYV cultivar had shorter in plant height, having more tillering capacity, higher leaf number, enough chlorophyll content and proper chemical composition which in turn showed superior growth character and yield. The HYV BRRI dhan29 produced in higher number of grains panicle-1 and bolder grains which resulted higher grain yield. Further, BRRI dhan29 showed superiority in yield contributing characters, erect leaves and total dry mass and it also produced higher grain yield (7.11 t ha-1 ).Therefore, it is observed that BRRI dhan29 showed better yield potential than those of other HYV cultivars studied