Fruit color enhancer and method for promoting fruit coloration by using same

Abstract

The invention discloses a fruit color enhancer and a method for promoting fruit coloration by using the same. The fruit color enhancer comprises photosynthetic bacteria, and also can comprise at least one of anthocyanin solution, chitin, chitosan, chitosan oligosaccharide, potassium dihydrogen phosphate, potassium sulfate and a wetting agent. The fruit color enhancer is sprayed on the surfaces of fruits or leaves for 1 to 5 times 1 to 45 days before the fruits are harvested, and the effect is more obvious when the fruit color enhancer is directly sprayed on the fruits instead of the surfaces of the leaves. By the method, harmful substances are not remained in the fruits, and sugar degree and hardness are improved to a certain extent. The method is suitable for the fruits of apples, grapes, cherries, tomatoes and the like, and has great significance for improving appearance and internal quality, and increasing the value and export yield of the fruits, and the income of peasants.

Description

Technical field: [0001] The invention relates to a fruit color enhancer and a method for using the fruit color enhancer to promote fruit coloring, which belongs to the application of biochemical reagents in agricultural production and is specially used for promoting plant fruit coloration. Background technique: [0002] The appearance color of fruit is an important quality index of many colored fruits such as apples, pears, peaches, grapes, etc., and it is also an important manifestation of the commercial quality of the fruits. The reason why my country's fruit export quantity is small and the export price is low is that the fruit appearance quality is not high. The area of ​​fruit trees in my country has grown steadily at an average annual rate of about 9%. Since 1994, my country's fruit tree cultivation area and total quantity have ranked first in the world. In 2003, my country's fruit tree production area reached 9.4367 million hm, accounting for 18% of the world's fruit...

AI Technical Summary

Problems solved by technology

In the 1930s, it was suggested that spraying thiocyanate could promote fruit coloration, but it was later found that improper spraying of thiocyanate could cause serious leaf damage.

Thiosulfates can brighten citrus, but the effect is not particularly satisfactory

In the 1960s, it was proposed that B9 can promote the accumulation of anthocyanins in apples, and 6-BA, abscisic acid, GA3, and uniconazole can promote fruit coloring. However, people’s attention to food safety issues in recent years has made this type of plant growth regulator has been used with great care

So far, although many researchers have done a lot of experiments, there are very few plant growth regulators that have been put into use, or the coloring effect is not obvious, or it is not easy to cause some side effects

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