A composition for promoting coloring and sweetening of grapes

Abstract

The invention discloses a composition for promoting coloring and sweetening of grapes. The composition comprises a component A (natural abscisic acid), a component B (monopotassium phosphate), a component C (one of lysophosphatidyl ethanolamine, lysophosphatidic acid and lysophosphatidyl choline) and a component D (one of sodium benzoate, levulinic acid and glutamic acid). A weight ratio of the component A to the component B to the component C to the component D is 1:6-30:0.04-2:1; the component A, the component B, the component C and the component D which are completely dissolved in absolute ethyl alcohol are mixed with distribution agents and water to obtain solution, and each liter of solution comprises 5-25 grams of component A, 30-150 grams of component B, 1-10 grams of component C, 5-25 grams of component D and 5 mL of distribution agents. The composition has the advantages that coloring of fruits can be obviously shifted to an earlier time after the composition is applied to the grapes, and the fruits are good in coloring uniformity; the sugar degree of the fruits can be upgraded, the sugar-acid ratios can be increased, and accordingly the quality can be improved; deterioration of the hardness of the fruits can be prevented after the composition is used, and accordingly the storage and transport quality of the grapes can be improved; the composition is safe and efficient in use.

Description

Technical field: [0001] The invention relates to a composition for promoting coloring and sweetening of grapes, which belongs to the technical field of fruit and vegetable fertilizers. Background technique: [0002] In the case of high grape yield, small temperature difference between day and night and low temperature, the difficult coloring of grapes is one of the difficult problems in production. The color of grape fruit has an important impact on the appearance quality and nutritional quality of the fruit, and it is also an important manifestation of the commercial quality of the fruit. Therefore, promoting fruit coloring and improving fruit appearance have been paid more and more attention by growers in recent years. [0003] In order to make grapes better colored, in addition to strengthening cultivation management, improving tree light conditions, bagging, leaf picking, fruit transfer, reasonable load, reasonable fertilization and other measures, the current methods m...

AI Technical Summary

Problems solved by technology

[0004] However, although potassium dihydrogen phosphate foliar spraying is safe and has no side effects, it can also increase the sugar content of the fruit, but the coloring is too slow; anthocyanin precursors are safe and the coloring effect is better than potassium dihydrogen phosphate, but it cannot improve Taste, coloring is relatively slow, and the price and cost are high; abscisic acid as the main component of inducer, coloring is faster, does not reduce the sugar content of the fruit, and the fruit is not soft, but improper use can easily cause uneven coloring, use Excessive amount will easily cause the fruit grains to fall off, and can only promote coloring, but not ripening; the coloring agent with ethephon as the main component, coloring is faster, it is sprayed with leaves, easy to use, and the coloring is relatively uniform, but it is easy to cause leaf aging. Using too early or too many times can easily cause water jar disease, and excessive concentration can also cause grain loss and affect the storage quality of grapes; the coloring agent with jasmonolactone as the main component is safe to use and does not affect the taste. Grains drop, but the coloring speed is relatively slow and the cost is high

[0005] To sum up, many colorants used in production so far are either slow to color, have no obvious effect, and are not easy to cause some side effects. Therefore, it is necessary to find new environmentally friendly, safe, efficient, non-toxic, economical and convenient methods. While improving the appearance of the fruit and uniform coloring, it can also improve the internal quality of the fruit, such as improving the taste and sugar content, and maintaining the storage performance of the fruit, so that the grains will not drop or shatter during transportation.