Abstract:

In order to discuss a new preservation method with NO for Mangifera indica, using sodium nitroprusside (SNP) as a nitric oxide (NO) donor, studied the effects of Mangifera indica L. ‘Tainong No.1’ with different concentrations of SNP treatments, the changes of external quality and postharvest physiology biochemical during storage period. The result showed that, the treatment of 10 μmol/L of SNP can effectively delayed the decrease in hardness, inhibit yellow rate of fruit, control weight loss, increase good fruit rate, lower disease index. The store life could extend by 3~4 days. The treatment of 640 μmol/L and 1280 μmol/L of SNP produced a significant toxicity for Mangifera indica, and demonstrated the trend that increased toxicity with increasing concentration. The SNP treatment could control the variety changes of internal and external indicators of mango, but there was a certain concentration range. Exceed this range, formed the toxic effects and toxic effects had a relationship with this concentration.