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Application of chitosan oligosaccharide aqueous solution to improve crop quality and usage of chitosan oligosaccharide aqueous solution

A technology of chitosan oligosaccharide and aqueous solution, which is applied in the field of agriculture, can solve the problems that the application has not yet been reported, and achieve the effects of environmental friendliness, simple use method, and promotion of metabolism

Inactive Publication Date: 2012-07-04
HAINAN ZHENGYE ZHONGNONG HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Chitosan oligosaccharides have been reported on freshness preservation, growth promotion and disease prevention, but their application in improving fruit quality has not been reported.

Method used

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  • Application of chitosan oligosaccharide aqueous solution to improve crop quality and usage of chitosan oligosaccharide aqueous solution
  • Application of chitosan oligosaccharide aqueous solution to improve crop quality and usage of chitosan oligosaccharide aqueous solution
  • Application of chitosan oligosaccharide aqueous solution to improve crop quality and usage of chitosan oligosaccharide aqueous solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Quality Improvement Test of Cantaloupe Using This Product

[0019] (1) Material

[0020] Origin: Foluo Town, Ledong County, Hainan Province

[0021] Sample 1: 5% chitosan oligosaccharide 1000 times sprayed 3 times at intervals of 10 days from the young fruit stage, the variety is "Mi Nong No. 10".

[0022] Sample 2: 2000 times of 5% chitosan oligosaccharides were sprayed 3 times at intervals of 10 days from the young fruit stage, and the variety was "Mi Nong No. 10"

[0023] Sample 3: Control, the variety is "Mi Nong No. 10"

[0024] Picked on April 6, 2009. The quality measurement time is April 13-15, 2009.

[0025] (2) method

[0026] Each sample was repeated 5 times, and the titratable acid was titrated with NaOH (national standard GB / T12293-90 Determination of titratable acid in fruit and vegetable products). Soluble sugar was determined by Fehling titration (National Standard GB 6194-86 Determination of soluble sugar in fruits and vegetables).

[0027] (3) R...

Embodiment 2

[0036] The quality improvement test of navel orange by using this product

[0037] (1) Material

[0038] Place of Origin: Organic Navel Orange Base in Anyuanhezai, Jiangxi (certified in August 2008)

[0039] Sample 1: 1000 times of 5% chitosan oligosaccharide was sprayed 3 times on the foliage at intervals of 10 days during fruit expansion.

[0040] Sample 2: CK (orchard conventional chemical treatment)

[0041] Both sample 1 and sample 2 were picked on December 30 without any follow-up treatment. The quality measurement time is January 10.

[0042] (2) method

[0043] Each sample has 8 repetitions, titratable acid adopts NaOH titration method (National Standard GB / T12293-90 Determination of titratable acid of fruit and vegetable products). Soluble sugar was determined by Fehling titration (National Standard GB 6194-86 Determination of soluble sugar in fruits and vegetables). Vc with spectrophotometry. Soluble solids are determined by the refractometer method (national ...

Embodiment 3

[0062] Using this product to improve the quality of mango

[0063] (1) Material

[0064] Place of Origin: Old Town, Chengmai County, Hainan Province

[0065] Sample 1: 1000 times of 5% chitosan oligosaccharide was sprayed 3 times on the foliage at intervals of 10 days during fruit expansion.

[0066] Sample 2: CK

[0067]Both sample 1 and sample 2 were harvested on May 19, 2009, without any follow-up treatment. The quality measurement time is May 25.

[0068] (2) method

[0069] Each sample was repeated three times, and the titratable acid was titrated with NaOH (national standard GB / T12293-90 Determination of titratable acid in fruit and vegetable products). Soluble sugar was determined by Fehling titration (National Standard GB 6194-86 Determination of soluble sugar in fruits and vegetables). Vc with spectrophotometry.

[0070] (3) Results

[0071] Table 8 Number of spots on mango fruit

[0072]

[0073] From Table 8, the number of spots on the mango fruit surfac...

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Abstract

The invention relates to application of chitosan oligosaccharide aqueous solution to improve crop quality and usage of the chitosan oligosaccharide aqueous solution. The application of the chitosan oligosaccharide aqueous solution to improve crop quality is characterized in that the chitosan oligosaccharide aqueous solution contains, in weight percentage, 0.001%-0.01% of chitosan oligosaccharide, polymerization degree of the chitosan oligosaccharide is 2-20, and molecular weight of the chitosan oligosaccharide ranges from 500Da to 10000Da, and crops can be vegetables or fruit trees. The usage of the chitosan oligosaccharide aqueous solution to improve fruit quality includes: spraying the chitosan oligosaccharide aqueous solution to leaves of a vegetable crop with a short growth period about 3-5 months for three times every 7-10 days in the middle and late growth period; and spraying the chitosan oligosaccharide aqueous solution to leaves of a tree crop with a long growth period for three to five times every 10-15 days from a young fruit stage. The chitosan oligosaccharide belongs to natural extract, is harmless to crops and human bodies after application to the crops, is environment-friendly, and is simple in usage and easy in popularization.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to the application and method of an aqueous solution of chitosan oligosaccharide in improving the internal and external quality of fruits of vegetables, fruit trees and other crops. Background technique [0002] With the continuous improvement of people's living standards, people have higher and higher requirements for the quality of crops, and green agricultural products are becoming more and more popular and occupy a huge market. In the production process of green agricultural products, the requirements for the use of fertilizers are relatively high, and the quality of green agricultural products must be guaranteed. [0003] In the current production, due to the adverse effects of climate factors, improper fertilizer and water management, use of hormone treatment or pests and diseases, etc., the fruit quality of crops has declined. For example, the sweetness and quality deterioration o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/06A01G1/00A01G17/00A01N43/16A01P3/00A01P1/00A01P21/00
Inventor 侯华民张善学蒋端望王技王少龙刘益帅周道龙
Owner HAINAN ZHENGYE ZHONGNONG HIGH TECH
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