MORPHO-PHYSIOLOGICAL ATTRIBUTES AND YIELD PERFORMANCE OF DIFFERENT AROMATIC RICE GENOTYPES

Abstract

An experiment was carried out at the research field of Sher-e-Bangla Agricultural University, Dhaka during the period from July 2017 -December 2017, to study the morpho-physiological attributes and yield performance of different aromatic rice genotypes and to identify the important morpho-physiological and yield contributing characteristics which might contribute in higher yield. Twelve rice varieties were used as treatments. The experiment was laid out in a Randomized complete Block Design (RCBD) with three replications. Data on different morpho-physiological parameters and yield with yield contributing characters were recorded. The collected data were statistically analyzed for evaluation of the treatment effect. Results signified that the highest number of total tillers hill -1 , dry weight hill -1 , crop growth rate , absolute growth rate, flag leaf area, SPAD value of flag leaf , number of effective tiller plant number of ineffective tiller of unfilled grains panicle biological yield (9.4 ton ha variety, V 11 (5.48 ton ha -1 -1 , panicle length, number of filled grains panicle , grain yield (3.30 ton ha -1 -1 -1 -1 , number ), straw yield (6.10 ton ha ) and harvest index (35.11%) were recorded from the (BRRI dhan37). The 2 -1 nd highest grain yield (2.81 ton ha ), biological yield (8.29 ton ha recorded from the variety, V number of filled grains panicle 1 ), straw yield (3.92 ton ha -1 12 -1 -1 -1 ), straw yield ) and harvest index (33.90%) were (BRRI dhan38). The lowest number of effective tiller, -1 , number of grains panicle ), biological yield (5.34 ton ha (26.59%) were observed from the variety, V6 (Modhumala). -1 -1 , grain yield (1.42 ton ha ) and lowest harvest index , ), -