Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore-641 003, India.
A pot culture experiment was conducted to investigate the efficacy of brasMosteroid and salicylic acid in alleviating low light stress in rice (Olyza sativa L.). Increased accumula tion of chlorophylls and ‘Hill reaction’ were evident in the treated plants which increased photochemical efficiency. Higher Rubisco content and photosynthetic rate with higher NRase activity resulted in increased biochemical efficiency with increased assimilation and biomass accumulation. This resulted in increased number of spikelets and reduction in spikelet sterility contributing to higher yield.
