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Chlorophyll a fluorescence has been used as non-invasive probe for stress physiology and environmental investigation. The changes of photosynthetic apparatus in Spirodela polyrrhiza was studied by using chlorophyll a fluorescence technique and JIP-test. During L-serine-induced senescence, photosynthetic performance index (PI), reaction center (RC) decreased gradually and reached zero on the 8th day...
The objective of this investigation was to study effects of Cr(III) stress on antioxidative system in Leersia hexandra Swartz. Seedlings of L. hexandra were grown in pots with five Cr(III) levels (0, 5, 30, 60 and 100 mg/L), Cr(III) showed inhibition on the growth of L. hexandra, and the inhibition was increased with the increase of concentration, 100 mg/L was the optimal concentration. L. hexandra...
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