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2010•Northern HorticultureRequires access

Effects of Exogenous Nitric Oxide Donor on Root and Photosynthetic Characteristics of Cabbage under NaCl Stress

Liu Bao-guo

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Abstract

The effects of sodium nitroprusside(SNP,an exogenous nitric oxide donor)and outgrowth sodium nitrite(NaNO2) on roots and leaf photosynthesis characteristics of cabbage under 100 mmol/L NaCl stress were studied.The results showed that 10 μmol/L SNP and 0.10 mmol/L NaNO2 could release the inhibition of NaCl stress in promoting root activity,root relative growth,net photosynthetic rate,and contents of chlorophyll,carotionoid.Furthermore,the effect of 10 μmol/L SNP was better on root activity and root relative growth than that of 0.10 mmol/L NaNO2,while NaNO2 had a better effect on net photosynthetic rate and pigments contents than SNP.

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What this paper is about

The effects of sodium nitroprusside(SNP,an exogenous nitric oxide donor)and outgrowth sodium nitrite(NaNO2) on roots and leaf photosynthesis characteristics of cabbage under 100 mmol/L NaCl stress were studied.The results showed that 10 μmol/L SNP and 0.10 mmol/L NaNO2 could release the inhibition of NaCl stress in promoting root activity,root relative growth,net photosynthetic rate,and contents of chlorophyll,carotionoid.Furthermore,the effect of 10 μmol/L SNP was better on root activity and root relative growth than that of 0.10 mmol/L NaNO2,while NaNO2 had a better effect on net photosynthetic rate and pigments contents than SNP.

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Available abstract

The effects of sodium nitroprusside(SNP,an exogenous nitric oxide donor)and outgrowth sodium nitrite(NaNO2) on roots and leaf photosynthesis characteristics of cabbage under 100 mmol/L NaCl stress were studied.The results showed that 10 μmol/L SNP and 0.10 mmol/L NaNO2 could release the inhibition of NaCl stress in promoting root activity,root relative growth,net photosynthetic rate,and contents of chlorophyll,carotionoid.Furthermore,the effect of 10 μmol/L SNP was better on root activity and root relative growth than that of 0.10 mmol/L NaNO2,while NaNO2 had a better effect on net photosynthetic rate and pigments contents than SNP.

Key concepts: Sodium nitroprusside, Photosynthesis, Chemistry, Sodium nitrite, Nitric oxide, Horticulture, Chlorophyll, Nitrite

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Effects of Exogenous Nitric Oxide Donor on Root and Photosynthetic Characteristics of Cabbage under NaCl Stress — Research Paper | ScholarLens