Regulating composition for citrus flower and fruit preservation and application thereof

Abstract

The invention relates to the technical field of fruit industry, and specifically discloses a regulating composition for preserving flowers and fruits of citrus and an application thereof. % auxiliary agent; the flower and fruit regulating factor comprises benzylaminopurine 0.5%-6%, gibberellic acid 0.5%-6% and brassinolide 0-0.01% (in pure amount). The regulating composition can be prepared as a liquid, powder or granule, which is sprayed on the citrus from the flower bud stage to the second physiological fruit shedding stage. It can effectively promote citrus germination and fruit setting, reduce flower and fruit drop, significantly increase fruit setting rate, reduce deformity rate, and correct fruit shape, making citrus taste sweet, uniform fruit size and smooth and bright peel. The uniformity of citrus fruit size is over 90%, and the deformity rate As low as 0.5-3.5%, the fruit setting rate is as high as 8-17.5%, and the yield per plant can be increased by 9.5-20.8%, which can effectively improve the quality and yield of citrus.

Description

technical field [0001] The invention belongs to the technical field of fruit industry, and in particular relates to a regulating composition for preserving flowers and fruits of citrus and an application thereof. Background technique [0002] my country is one of the origins of citrus, and the output of citrus ranks first in the world. Citrus is cultivated in 19 provinces (regions) and cities in my country, and it is the most important fruit tree in the south. However, due to the natural growth environment of citrus, citrus has more flowers and less fruit, and there is a serious phenomenon of flower and fruit drop. Citrus flower and fruit drop can be roughly divided into five stages: bud drop, flower drop, the first physiological fruit drop, and the second time. Physiological fruit drop, pre-harvest fruit drop. After the above process, the fruit setting rate of citrus is very low, and the fruit setting rate is generally only 0.3-5%. How to preserve flowers and fruits is a ...

AI Technical Summary

Problems solved by technology

[0003] The main fruit-preserving drugs used for citrus on the market include plant growth regulators such as 2,4-D, gibberellin (gibberellic acid A3), cytokinin, paclobutrazol, and forchlorfenuron. The fruit-preserving effect is good, but it will cause A series of side effects, such as rough skin, deformed fruit, etc., affect fruit quality

Gibberellins have adverse effects on citrus, manifested as citrus leaves become larger and thinner, and turn green slowly; while the effects on fruits are manifested as many small fruits, thickened and rough peels, and reduced quality