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A method for increasing the effective and economic yield of ginkgo acid in the outer testa of ginkgo biloba

A technology of ginkgo biloba testa and ginkgolic acid, applied in botany equipment and methods, chemicals for biological control, plant growth regulators, etc., to achieve good application prospects, easy operation, and obvious effects

Active Publication Date: 2021-03-02
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] That is to say, the current application of salicylic acid in plants mainly stays in the research on improving resistance, including the application of salicylic acid on Ginkgo biloba to improve resistance. Research report on increasing the production of ginkgo seed coat and increasing the content of ginkgolic acid by source hormone

Method used

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  • A method for increasing the effective and economic yield of ginkgo acid in the outer testa of ginkgo biloba
  • A method for increasing the effective and economic yield of ginkgo acid in the outer testa of ginkgo biloba
  • A method for increasing the effective and economic yield of ginkgo acid in the outer testa of ginkgo biloba

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Effect test

Embodiment 1

[0171] The present invention is a kind of method that spraying exogenous hormone promotes ginkgo exotesta to increase production, and described method comprises the preparation of exogenous hormone, the determination of spraying time, the selection of spraying combination etc., carry out according to the following steps:

[0172] (1) Tree management and artificial pollination: Select 15-20-year-old ginkgo female trees with normal flowering and fruiting, and manage water and fertilizer normally. During the pollination period of Ginkgo biloba, choose sunny weather, and artificially assist pollination by spraying pollen aqueous solution.

[0173] (2) Exogenous hormone configuration: the exogenous hormone uses purified water as a solvent, and 0.1% polyethylene glycol 600 nonionic surfactant is added to enhance the solution stability and adhesion. The mass-to-volume ratio concentrations are:

[0174] ①Naphthylacetic acid (NAA) spray concentration is 300mg / L,

[0175] ② 6-benzylam...

Embodiment 2

[0183] On May 25, 2019, the optimal formula A was carried out on the ginkgo trees in the 20-acre high-yield area of ​​the Ginkgo Demonstration Base in Dong'an County (plant-to-row spacing 4*6m-5*6m, 20-30 trees per mu) 2 B 2 C 2 ——300mg / L NAA+100mg / L6-BA+200mg / L salicylic acid spraying treatment test, clean water was the control group. Effective spraying of each tree requires 20L-25L of proportioning liquid (slightly different according to the size of the tree), 400L-750L of proportioning liquid per mu, and 120g-225g of NAA, 40g-75g per mu. 6 -BA, 80g~150g salicylic acid. On September 15th, the testa was harvested and the production was measured. The dry outer testa output, ginkgolic acid content and effective economic yield average value of per mu of ginkgo were 321.42kg, 7.73% and 24.85kg (see Table 7), respectively. 1.50, 1.38 and 2.06 times of the group, greatly improved the effective economic yield of Ginkgo biloba testa ( Figure 19 ).

[0184] Table 7 Yield experim...

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Abstract

The invention provides a method for increasing the effective economic yield of ginkgolic acid in the outer testa of ginkgo biloba. Including the preparation of exogenous hormones, the determination of spraying time, the selection of spraying combination and other technical links. The method can significantly increase the proportion of the outer testa of ginkgo seeds, and meanwhile, the content of ginkgolic acid in the outer testa can also be significantly increased. Because the method increases the output value of the ginkgo exocarp, it provides high-quality raw materials for the production of biological source pesticides with ginkgolic acid as the main active substance. The method is easy to implement, low in cost and good in effect, and can be used as a supplementary means for high-quality and high-yield cultivation of ginkgo for outer testa under the background that ginkgo breeding is difficult.

Description

technical field [0001] The invention belongs to the technical field of improving the economic yield of a single ginkgo plant, and in particular relates to a method for increasing the effective economic yield of ginkgolic acid in the outer testa of ginkgo. Background technique [0002] Ginkgo biloba L., also known as ginkgo tree, is a gymnosperm plant of a single genus, dioecious, and a deciduous tree. It is a world-renowned relic species and a precious medicinal tree species. The flavonoids and terpenoids extracted from Ginkgo leaves It is a special drug for preventing and treating cardiovascular and cerebrovascular diseases. The ginkgo exotesta is the fleshy part outside the hard core of the seed, also known as the ginkgo seed coat, which accounts for more than 60% of the weight of the ginkgo seed. Ginkgo biloba contains a variety of active ingredients, mainly including phenolic acids, flavonoids, terpene lactones and polysaccharides. The content of ginkgolic acid in Ginkg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/90A01N37/40A01N37/10A01P21/00
CPCA01N37/10A01N37/40A01N43/90
Inventor 王义强刘伟冯致李萌杨竣茹杨果王惠
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY