Facility vegetable cryoprotective agent

A low-temperature and protective agent technology for vegetables, which is applied in biocides, animal repellents, plant growth regulators, etc., can solve the problems of lack of simple and easy anti-low temperature technology products, high investment costs, unstable effects, etc., and achieve antifreeze Good effect, easy to use, obvious effect

Inactive Publication Date: 2009-12-09
VEGETABELE INST AGRI SCI ACAD SHANXI PROV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above anti-low temperature measures can play a certain role to a certain extent, but there are still problems such as high investment cost, time-consumi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] The preparation method of the facility vegetable cryopreservation agent of the present invention is as follows: firstly adjust glucose, choline chloride and chlormequat into a high-concentration solution with a small amount of water, dissolve the naphthalene acetic acid with a small amount of alcohol, and then mix it into a certain concentration Aqueous solution.

[0023] The method of using the cold protective agent for facility vegetables of the present invention is: spraying 1-2 times before and after the onset of low temperature during the seedling stage, and the amount is sprayed to wet the leaf surface.

[0024] The test results show that spraying the cold-protective agent for facility vegetables of the present invention during the seedling stage and before the arrival of the low-temperature season can significantly increase the activity of POD enzyme, reduce the activity of SOD enzyme, and effectively reduce the chilling injury index of facility vegetables.

[0025] ...

Example Embodiment

[0028] Example 1

[0029] Glucose powder 0.5Kg, choline chloride 2Kg, naphthalene acetic acid (70% sodium salt) 0.3Kg, chlormequat 0.2Kg, 95% ethanol 1.0Kg, water 96Kg. First use 4Kg of water to adjust glucose, choline chloride and chlormequat into a paste, dissolve the naphthalene acetic acid with 1Kg of ethanol, mix and dilute with the remaining water to prepare 100Kg of vegetable cryoprotectant. Applied to low-temperature protection of early green summer squash, soaking seeds in warm water on July 7, 2008, seedlings in 9cm×9cm nutrient bowls, spraying 0.9% glucose and 0.6% choline chloride mixed aqueous solution once at the three-leaf one-heart stage, and treated with clear water for control , The next day, it was transferred to an artificial climate box for low temperature stress treatment, the temperature was 6℃, and the temperature and light cycle was 10h (day) / 14h (night). After treatment for 3 days, the chilling injury index of the seedling leaves was measured. In each tre...

Example Embodiment

[0030] Example 2

[0031] Glucose powder 1.5Kg, choline chloride 1.0Kg, naphthalene acetic acid (70% sodium salt) 1.0Kg, chlormequat 0.1Kg, 95% ethanol 2.0Kg, water 94.4Kg. The preparation process is the same as in Example 1. Applied to Jintomato No. 4, plug seedlings on July 26, 2008, sprayed with a mixed aqueous solution of 1.0% glucose and 0.15% choline chloride at 4 leaves and 1 heart stage, treated with clear water for control, and moved into artificial climate box the next day Carry out the low temperature stress treatment, the temperature is 6℃, the temperature and light cycle is 10h (day) / 14h (night), and the chilling injury index of the seedling leaves is measured 10 days after the treatment. In each treatment, there were 12 test materials, repeated 3 times, and the data was statistically analyzed by DPS statistical method. The test results show that the cold injury index is 29.21%, which is 80.97% of the control.

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Abstract

A facility vegetable cryoprotective agent is composed of glucose, choline chloride, naphthylacetic acid, chlormequat chloride, alcohol and water. The invention relates to a facility vegetable cryoprotective agent prepared by taking glucose, choline chloride, naphthylacetic acid and chlormequat chloride as active ingredients and has the characteristics of less components, low production cost and good freeze-proofing effect. Through field test, influence of low temperature of minus 3 to 5 DEG C can be effectively prevented. The invention has simple preparation, convenient use, labour and time saving and obvious effect, raw material components are not only cryoprotective agent but also vegetable nutrient substances, and the cryoprotective agent has no toxic hard on vegetables or safety threat on human body, thus being applicable to facility vegetable production in northern China.

Description

technical field [0001] The invention relates to an anti-low temperature protective agent for vegetables, in particular to an anti-low temperature protective agent suitable for spraying on vegetable leaves. Background technique [0002] In northern China, low temperature in winter and spring is one of the important factors affecting the growth and development of facility vegetables. Facility vegetables often suffer from severe chilling damage due to the invasion of cold waves and a sharp drop in temperature, resulting in huge economic losses. At present, measures to prevent low temperature in the production of facility vegetables include: (1) adopting varieties that are resistant to low temperature and low light; (2) taking measures such as heat preservation, heating and increasing light in the facility to slow down the impact of low temperature on the growth of facility vegetables (3) Adopt appropriate field management measures to alleviate the impact of low temperature on f...

Claims

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Application Information

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IPC IPC(8): A01N43/16A01N33/12A01N37/10A01N31/02A01P21/00
Inventor 郭尚毛丽萍程伯瑛孙忠富冯志威田如霞赵成凤
Owner VEGETABELE INST AGRI SCI ACAD SHANXI PROV
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