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Method for increasing gutta-percha content in eucommia leaves

A technology of eucommia gum and eucommia leaves, which is applied in the field of increasing the content of eucommia gum by foliar spraying, which can solve the problems of increasing the content of eucommia gum and geniposide, and achieves easy access and broad market application prospects , the effect of low price

Inactive Publication Date: 2014-01-08
JISHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There have been domestic studies on increasing the content of secondary metabolites in leaves of Eucommia ulmoides, such as Xu Yongmei, a 2007 graduate student of Northwest Agriculture and Forestry University's master's degree thesis "The Effect of Exogenous Hormones on the Content of Secondary Metabolites in Eucommia ulmoides" and the Journal of Northwest Forestry University "Foreign A Study on the Effect of Source Hormone on the Content of Secondary Metabolites in Eucommia Leaves" discloses that the content of secondary metabolites in Eucommia leaves can be increased by foliar spraying, and the agents involved are mainly ABT rooting powder and gibberellin (ABT rooting powder and gibberellin known to have certain side effects), the main effect is to increase the content of geniposide, and there are few reports involving the increase in the content of Eucommia gum

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] (1) Preparation of medicament, weigh a certain amount of salicylic acid and magnesium sulfate heptahydrate powder, dissolve in water, make the concentration of salicylic acid in the dissolved aqueous solution be 20ppm, and the mass fraction of magnesium sulfate be 0.02%.

[0014] (2) For the spraying of the medicament, select the above prepared solution to spray the foliage of the growing Eucommia tree in no rainy weather, spray before sunrise or after sunset, spray once every February, and spray every two months. The interval between spraying is not less than 15 days, so that the leaves are evenly covered with the solution.

[0015] The eucommia leaves were harvested in November. After testing, the content of eucommia gum in the leaves of the eucommia tree was 33% higher than that of the eucommia gum content without foliar spraying under the same conditions, and the effect of increasing the eucommia gum content was significant.

Embodiment 2

[0017] (1) Preparation of medicament, weigh a certain amount of salicylic acid and magnesium sulfate heptahydrate powder, dissolve in water, make the concentration of salicylic acid in the dissolved aqueous solution be 80ppm, and the mass fraction of magnesium sulfate be 0.05%.

[0018] (2) For the spraying of the medicament, select the above prepared solution to spray the foliage of the growing Eucommia tree in no rainy weather, spray before sunrise or after sunset, and spray once a month, each time The interval between spraying is not less than 15 days, so that the leaves are evenly covered with the solution.

[0019] Harvested in November, after testing, the content of eucommia gum in the leaves of the eucommia tree was 41% higher than that of the eucommia gum content without foliar spraying under the same conditions, and the effect of increasing the content of eucommia gum was significant.

Embodiment 3

[0021] (1) Preparation of medicament, weigh a certain amount of salicylic acid and magnesium sulfate heptahydrate powder, dissolve in water, make the concentration of salicylic acid in the dissolved aqueous solution be 150ppm, and the mass fraction of magnesium sulfate be 0.07%.

[0022] (2) For the spraying of the medicament, select the above prepared solution to spray the foliage of the growing Eucommia tree in no rainy weather, spray before sunrise or after sunset, spray twice a month, each time The interval between spraying is not less than 15 days, so that the leaves are evenly covered with the solution.

[0023] Harvested in November, after testing, the content of eucommia gum in the leaves of the eucommia tree was 48% higher than that of the eucommia gum content without foliar spraying under the same conditions, and the effect of increasing the content of eucommia gum was significant.

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PUM

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Abstract

The invention discloses a method for increasing the gutta-percha content in eucommia leaves by spraying chemicals on the leaves. The method comprises the steps of preparing water solution with the concentration of salicylic acid being 10-200ppm and the mass fraction of magnesium sulfate being 0.01-0.08 percent, spraying the prepared solution to the leaves of growing eucommia trees on the rainless days before sunrise or after sunset and carrying out spraying for 1-4 times every two months, wherein the spraying interval is not shorter than 15 days. By adopting the method for carrying out foliage spray, the eucommia leaves can be harvested from October to November, and the gutta-percha content in the eucommia leaves is higher than the gutta-percha content in the eucommia leaves growing on the same condition without foliage spray by 20-50 percent. The method can be implemented in an industrialized, large-scale and standardized mode, and is good in economic benefit and wide in market application prospect.

Description

technical field [0001] The invention relates to a method for increasing the content of eucommia gum in eucommia leaves, in particular to a method for increasing the content of eucommia gum by spraying medicaments on leaves. Background technique [0002] Eucommia gum is a new functional material. Eucommia gum and natural rubber produced in Hevea trilobata are isomers. Eucommia gum is trans-polyisoprene, and natural rubber is cis-polyisoprene. After vulcanization, Eucommia gum can be in rubber state or in different plastic states. There are many Eucommia gum products on the market, and its market application prospect is very broad. [0003] Eucommia gum mainly exists in the bark, leaves and fruits of Eucommia ulmoides, and the leaves of Eucommia ulmoides become the main raw material for extracting eucommia gum due to their large yield and strong regenerative properties. 2%-4%, if the content of eucommia gum in eucommia leaves can be increased through artificial intervention i...

Claims

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Application Information

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IPC IPC(8): A01G7/06A01N59/06A01P21/00A01N37/40
Inventor 周强黄萌陈功锡张永康
Owner JISHOU UNIVERSITY
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