Broad-spectrum flower and fruit protector for plants and application of broad-spectrum flower and fruit protector

Abstract

The invention discloses a broad-spectrum flower and fruit protector for plants and application of the broad-spectrum flower and fruit protector. An active component of the broad-spectrum flower and fruit protector adopts alginic acid oligosaccharide or an alginic acid oligosaccharide derivative; the alginic acid oligosaccharide is oligosaccharide obtained by connecting mannuronic acid with guluronic acid through a beta-1,4-glucosidic bond, and the molecular weight of the alginic acid oligosaccharide is 300 to 10,000 Da; the alginic acid oligosaccharide derivative comprises an alginic acid oligosaccharide sulfuric acid derivative and an alginic acid oligosaccharide phosphorus-containing derivative. The broad-spectrum flower and fruit protector is applied to increasing the flower protection and fruit setting rate in growing and developing processes of vegetables and fruit trees; the broad-spectrum flower and fruit protector is applied to the vegetables and the fruit trees. By the use of the broad-spectrum flower and fruit protector, the fruit setting rate can be increased by 40 to 80 percent, and particularly, the fruit setting rate of the vegetables is increased by 30 to 80 percent. A drug with the alginic acid oligosaccharide serving as a main component has the advantages of safety, nontoxicity, low cost, small application amount, environment friendliness, durable effect and the like. The broad-spectrum flower and fruit protector for the plants is used for carrying out application, seed soaking, root dipping, root irrigation and the like on crops such as the fruit trees, so that the flower and fruit protection capacity of the crops can be improved, and the broad-spectrum flower and fruit protector has an outstanding effect on increase of the crop yield and improvement of the quality.

Description

technical field [0001] The invention relates to the growth and development regulation of plants, specifically alginic acid oligosaccharides or alginic acid oligosaccharide derivatives as main active substances in plant flower and fruit preservation agents and their application. Background technique [0002] In agricultural production, preserving flowers and fruits is an important means to improve the fruit setting rate of plants within the range of stable yield and load capacity. The purpose of preserving flowers and fruits is to increase the fruit setting rate, and the fruit setting rate is an important factor in the composition of yield. Increasing the fruit setting rate, especially in years with less flowers, is of great significance in ensuring high and stable plant yields. Especially the natural fruit setting rate of fruit trees is generally very low, usually only 2-3% as citrus. And the improvement of single fruit weight is limited by the heredity of the variety. Th...

AI Technical Summary

Problems solved by technology

The application of alginic acid oligosaccharides and their derivatives as plant flower and fruit preservation agents in agricultural production has not been reported in literature and patents

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