Disease prevention method of increasing content of phenolic substance in strawberry fruit

Abstract

The invention discloses a disease prevention method of increasing the content of phenolic substance in strawberry fruit, and belongs to the technical field of crop cultivation. The method comprises the steps that the strawberry plants are UV-C irradiation treated once every 2-4 days beginning from the flowering period and continuing until the fruiting period; the conditions for the UV-C irradiation treatment are the following: the irradiation dosage amount is less than 0.75 kJ / m2, the irradiation time is less than 70 s; after the UV-C irradiation treatment is completed, the strawberry plants need to be shaded from light for larger than or equal to 8 hours. According to the disease prevention method, the strawberry plants are regularly UV-C irradiated in the flowering and fruiting period, the contents of anthocyanin and flavonol and other phenolic substances in strawberry fruits are significantly increased, meanwhile the antioxidant ability of the fruits is increased; the low dosage UV-C irradiation combined with light shading treatment method is utilized, physiological metabolisms related to the course of disease of the strawberry plants are induced, the anti-disease ability of the strawberry plant per se is effectively increased, and the incidence rate of the natural diseases of the strawberries is significantly decreased.

Description

technical field [0001] The invention relates to the technical field of crop cultivation, in particular to a disease control method for increasing the content of phenolic substances in strawberry fruit. Background technique [0002] Strawberry fruit is bright in color, fragrant in flavor, and rich in active nutrients that are beneficial to human health. It is favored by consumers and has high nutritional and economic value. In addition to the main dietary components such as fructose, sucrose, glucose, citric acid, malic acid, and ascorbic acid, the secondary plant active substances in strawberries mainly include antioxidant polyphenols such as anthocyanins, flavonols, and ellagic acid, which are used by many Epidemiological studies at home and abroad have proved that it has important benefits for human health. Numerous studies have shown that increasing intake of these active phenolics plays an important role in the prevention of inflammation, oxidative stress, cardiovascula...

AI Technical Summary

Problems solved by technology

[0007] The invention provides a disease prevention and control method for increasing the content of phenolic substances in strawberry fruits. UV-C irradiation is carried out during the growth period of strawberry plants to increase the content of phenolic active substances in the produced fruits and effectively reduce the occurrence of plant diseases. It also solves the problem that the existing post-harvest treatment technology is easy to cause mechanical damage to strawberries and thus affects the fruit quality.

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