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

EFFECT OF TEMPERATURE ON PHOTOSYNTHESIS, YIELD ATTRIBUTES AND YIELD OF AROMATIC RICE GENOTYPES (Pages : 14 - 16)

A pot experiment was conducted with five aromatic rice genotypes viz., BRRIdhan34, Ukunimadhu, RM-100/16, KD5 18-150 and Kalozira in plant growth chamber at Bangladesh Institute of Nuclear Agriculture, Mymensingh in 2009 to see their temperature tolerance. Three temperature treatments viz., Ambient, 34o C at booting stage and 34o C at grain filling stage were imposed and continued for 7 days. Photosynthetic rate, grain yield and harvest index decreased but leaf conductance and transpiration rate increased with high temperature (34o C) at both booting and grain filling stages. Total dry matter/plant was the lowest with the temperature (34o C) at booting stage Plant height and number of panicles/plant were not affected by the temperature treatments. KD5 18-150 showed higher grain yield, total dry matter/plant and harvest index under temperature stress. Download