Method for relieving drought stress of Actinidia chinensis fruit trees

Abstract

The invention provides a method for relieving drought stress of Actinidia chinensis fruit trees. The method comprises the following step of irrigating melatonin at the concentration of 50 to 200 umol / L in seedlings of the Actinidia chinensis for one time every other 2 days, totally for four times, wherein the irrigation amount is 200 ml. By the method, the relative water content of leaves of the seedlings of wild Actinidia chinensis in the same year under the drought stress can be obviously increased, damage of malonaldehyde to cytomembrane is reduced, the relative membrane permeability is reduced, proline concentration and soluble sugar concentration are reduced, degradation of soluble protein is inhibited, high activity of protective enzyme is maintained, the plants can adapt to the drought environment better and the drought resistance of the plants is enhanced.

Description

technical field [0001] The invention belongs to the field of fruit tree cultivation, and in particular relates to a method for alleviating drought stress of kiwi fruit trees. Background technique [0002] With the abnormal global climate and the destruction of ecological balance, the shortage of water resources has increasingly become a serious ecological problem faced by human beings. According to statistics, the world's arid and semi-arid regions account for one-third of the earth's land area. my country's arid and semi-arid areas account for about half of the country's land area, and even in non-arid areas, sudden droughts often occur. Drought stress often affects plant growth and development, resulting in severe crop yield reduction. The loss of crops caused by drought ranks first among all abiotic stresses, second only to the losses caused by biotic stress, diseases and insect pests. [0003] A good ecological environment is the condition for the survival of fruit tre...

AI Technical Summary

Problems solved by technology

However, for water-scarce years, large-scale rehydration is impractical

Although abscisic acid and sodium fulvic acid are occasionally used to alleviate drought stress in kiwifruit (such as "The effect of rehydration and exogenous abscisic acid treatment on the drought resistance of kiwifruit seedlings under drought stress" and "Sodium fulvic acid enhances the drought resistance of kiwifruit seedlings Physiological Effects Research"), but the treatment method is foliar spraying. When spraying all the leaves, it is time-consuming and labor-intensive, and this method is more serious for the waste of chemicals.

In addition, in addition to the above-mentioned limited treatment methods, no other effective treatment methods suitable for kiwifruit drought stress have been found so far.

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