GROWTH, YIELD AND LEAF NUTRIENT CONTENT OF SOME LOCAL AND HIGH YIELDING BORO RICE CULTIVARS

Abstract

A field experiment was conducted at the field laboratory of Agricultural Chemistry Department, Hajee Mohammad Danesh Science and Technology University, Dinajpur, during the period from February to May, 2011 to study morphochemical, yield and yield contributing characters of four boro rice varieties of which three were local viz., Bashful, Poshursail, Gosi and one was a high yielding cultivar BRRI dhan 28. The experiment was laid out in one factor Randomized Complete Block Design with four replications. Results revealed that the morphological, physiological, yield and yield attributes were significantly different among the cultivars studied. Results of HYV cultivar were shorter in plant height, having more tillering capacity, higher leaf number which in turn showed superior growth character and yield than the local cultivars. The HYV BRRI dhan 28 produced higher number of grains panicle” and bolder grains which resulted higher grain yield than the local cultivars. Further, BRRI dhan 28 showed superiority in yield contributing characters erect leaves and total dry mass over other local varieties and it also produced higher grain yield (7.41 t ha '), while Bashful showed the lowest yield contributing characters and yield (4.75 t ha’). Among the local rice cultivars, Gosi had the higher yielding ability than those of others local cultivars.