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

BIOCHEMICAL ATTRIBUTES OF MUTANT RICE UNDER DIFFERENT SALINE LEVELS (Pages : 17 - 21)

A pot experiment was conducted at the Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh to find out the biochemical attributes of mutant rice under varied saline levels during T-aman season from July to November 2003. Three rice genotypes viz. Q-31, Y-1281, and MR-219 were used as tests materials. The experiment was laid out in a Randomized Complete Block Design (RCBD) with four replications. Six salinity levels namely 15 dSm-1 , 12 dSm-1 , 9 dSm-1 , 6 dSm-1 , 3 dSm-1 with a control were imposed in this experiment. Results of the experiments clearly showed that biochemical characters such as total chlorophyll content, nitrate reductase activity, K+ and Ca++ etc. content of straw were reduced with increase levels of salinity compared to control. On the other hand, Na+ were increased with increasing salinity levels. Among the genotypes, MR-219 showed best performance in respect of salt tolerant up to 6 dSm-1 and showed Y-1281 intermediate status. The genotypes Q-31 and Y-1281 showed its susceptibility to salinity stress. Download