SELENIUM ACCUMULA T ION IN CYAMOPSIS PSORILIOIDES (L.WILZECK) BY INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION SPECTROPHOTOMETER AND ITS EFFECT ON CHLOROPHYLL CONTENTNEETA S. PATIL AND SUDHA A. SAWANTAbstract Comparative study of different concentrations of selenium with respect to its effect on growth of Cyamopsis psorilioides (L. Wilzeck) was conducted. In the present study plants were treated with different concentrations of selenium in the form of sodium selenate, in three different soil cultures and vermiculite. Selenium concentration above 100ppin inhibited the growth of plants, so the threshold doses were 0- 10Oppm taken. The aim was to stud), the physiological responses of the plants in terms of selenium accumulation and chlorophyll content of the plants at different concentrations. Selenium accumulation was studied by lndtictively Coupled Plasma Emission Spectrophotometer (ICP-AES). Results indicated that plants treated with 8Oppm and 100ppm selenium doses accumulate more selenium. Plants treated with SOppm and 1NITIn of selenium showed notable decrease in chlorophyll content as compared to lower concentrations and wntrol. It was further found that 8Oppin and I 00ppm concentration of selenium inhibited the flowering and fruiting process. As a result, increased selenium supply to the soil could imbalance the nutrition uptake and inhibit the growth of plants. On the other hand minimal concentration of selenium didn't show any ill effeds.
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