The Effects of SA on the Physiological Index of Tomato Seedlings
Linqing Zhang
Abstract
Linqing Zhang
Abstract
Taking'Hezuo908'and 'Qidali' tomato as test material,effect of different concentrations of salicylic acid(0.1,0.5,1,2,4 mmol/L)under salt stress-induced on physiological indices of tomato seedlings were studied.The results indicated that the best treatment concentration of SA was 1 mmo1/L.SA restrained the decrease of chlorophyll and significantly enhanced peroxidase(POD),catalase(CAT)and other plant cell protective enzyme activity of leaf and reduce the content of malondialdehyde(product of membrane lipid peroxidation)and the plasmalemma permeability,therefore the growth inhibition caused by salt stress were mitigated.
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Taking'Hezuo908'and 'Qidali' tomato as test material,effect of different concentrations of salicylic acid(0.1,0.5,1,2,4 mmol/L)under salt stress-induced on physiological indices of tomato seedlings were studied.The results indicated that the best treatment concentration of SA was 1 mmo1/L.SA restrained the decrease of chlorophyll and significantly enhanced peroxidase(POD),catalase(CAT)and other plant cell protective enzyme activity of leaf and reduce the content of malondialdehyde(product of membrane lipid peroxidation)and the plasmalemma permeability,therefore the growth inhibition caused by salt stress were mitigated.
Key concepts: Salicylic acid, Catalase, Malondialdehyde, Point of delivery, Peroxidase, Membrane permeability, Lipid peroxidation, Chlorophyll