Green Global
Foundation   Journal
...an emerging window for scientific research and publication across the globe

GRAIN GROWTH AND YIELD PERFORMANCE OF AROMATIC RICE GENOTYPES UNDER DIFFERENT SOIL MOISTURE REGIMES (Pages : 44 - 47)

A pot experiment was conducted at Bangladesh Institute of Nuclear Agriculture, Mymensingh during July to December 2007 to assess the effect of moisture stress on morphological characters, grain growth and yield performance of five promising fine grain rice genotypes viz., KD5-18-150, UD5-100-6, RM-100-16, RM-100-5 and Ukunimadhu. The soil moisture levels 100, 80, 60, and 40% field capacity were imposed at panicle initiation, booting and flowering stages of the genotypes. These treatments were also maintained from panicle emergence to maturity to study grain growth pattern of the rice genotypes. All the morphological parameters and yield were decreased with the stress. Plant height, number of panicle, panicle length, 1000-grain weight, grain yield hill-1, total dry matter hill-1 and harvest index decreased with increasing water stress. However, varieties responded differently for all the characters studied and they had different degrees of reduction. Among the genotypes Ukunimadhu produced the highest yield, number of panicle and panicle length. Grain dry matter accumulation linearly increased from fertilization to 21 days after fertilization, thereafter it did not increase significantly.Download