An experiment was conducted to study the photosynthetic efficiency of rice genotypes and mutants at the Glass house, Department of Crop Physiology, TNAU, Coimbatore. The physiological and biochemical parameters viz., chlorophyll index, photosynthetic rate, chlorophyll fluorescence and soluble protein content were measured at different growth stages which depicted the relative ability of the genotypes to the photosynthetic efficiency. Significant variation inthephotosynthetic characters among the rice genotypes was noticed in the experimental results. Among the two mutants studied for photosynthetic efficiency the mutant 377-1-1 performed better than the mutant 277-2 due to its superiority in certain morpho-physiological, anatomical and biochemical traits which ultimately contributed for better yield. Hence, the mutant 377-1-1 can be recommended for crop improvement programme for developing elite cultivars with better photosynthetic efficiency and yield.
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Tamil Nadu Agricultural University
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Madras Agricultural Journal (MAJ)
Madras Agricultural Students Union
Tamil Nadu Agricultural University
Coimbatore - 641
003
Tamil Nadu, India.
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