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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-consuming and labor-intensive, and unstable effects, and there is still a lack of low-temperature anti-technical products that are simple, convenient, and effective

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] The preparation method of the cryoprotectant for facility vegetables of the present invention is: first adjust glucose, choline chloride and chlormequat into a high-concentration solution with a small amount of water, dissolve naphthaleneacetic acid with a small amount of alcohol, and then make a certain concentration aqueous solution.

[0023] The usage method of the cryoprotectant for facility vegetables of the present invention is as follows: spraying 1-2 times at the seedling stage, before and after the arrival of low temperature, and the dosage is only enough to wet the leaf surface.

[0024] The test results show that spraying the protected vegetable cryoprotectant of the present invention at the seedling stage and before the low temperature season can significantly increase the activity of POD enzymes, reduce the activity of SOD enzymes, and effectively reduce the chilling damage index of protected vegetables.

[0025] The chilling injury index refers to the size...

Embodiment 1

[0029] Glucose powder 0.5Kg, choline chloride 2Kg, naphthaleneacetic acid (70% sodium salt) 0.3Kg, chlormequat 0.2Kg, 95% ethanol 1.0Kg, water 96Kg. Glucose, choline chloride and chlormequat are first adjusted into a paste with 4Kg of water, and naphthaleneacetic acid is dissolved with 1Kg of ethanol, mixed and then diluted with the remaining water to prepare a 100Kg vegetable cryoprotectant. Applied to the low temperature protection of early green zucchini, soaked in warm water on July 7, 2008 to accelerate germination, raised seedlings in a 9cm×9cm nutrient pot, sprayed a mixed aqueous solution of 0.9% glucose and 0.6% choline chloride once at the three-leaf one-heart stage, and treated with clean water for the control , moved into the artificial climate box for low temperature stress treatment the next day, the temperature was 6°C, the temperature and photoperiod was 10h (day) / 14h (night), and the chilling injury index of the leaves of the seedlings was measured after 3 days...

Embodiment 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. Preparation process is identical with embodiment 1. Applied to Jintomato No. 4, on July 26, 2008, seedlings were grown in plug trays, 4 leaves and 1 heart stage were sprayed with a mixed aqueous solution of 1.0% glucose and 0.15% choline chloride. Low temperature stress treatment was carried out, the temperature was 6°C, the temperature and photoperiod was 10h (day) / 14h (night), and the chilling injury index of the leaves of the seedlings was measured after 10 days of treatment. In each treatment, 12 plants were involved in the test, repeated 3 times, and the data were statistically analyzed using the DPS statistical method. The test results showed that the chilling injury index was 29.21%, which was 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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