A compound preparation for relieving low temperature and weak light stress of crops and its application

A low temperature and weak light, compound preparation technology, applied in application, plant cultivation, fertilizer mixture and other directions, can solve the problem of unsatisfactory regulation effect of regulatory substances, and achieve the enhancement of leaf chlorophyll content and photosynthesis, growth and development and physiological function promotion Action, spray comprehensive effect

Active Publication Date: 2019-06-11
WUHAN VEGETABLE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is a complex network of signal transduction, hormonal changes, biochemical, and physiological changes in vegetables under low temperature and low light stress. The effect of one regulatory substance is often not ideal, and multiple regulatory substances may produce antagonistic or synergistic effects. Therefore, the screening of stable resistance-inducing agents and their compound preparations, and the establishment of reasonable resistance-inducing technology are conducive to promoting the growth and photosynthesis of vegetables under low-temperature and low-light conditions.

Method used

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  • A compound preparation for relieving low temperature and weak light stress of crops and its application
  • A compound preparation for relieving low temperature and weak light stress of crops and its application
  • A compound preparation for relieving low temperature and weak light stress of crops and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1. Test materials and reagents

[0041] The cucumber variety tested was 'Jinchun No.4'; the pepper variety was 'Jiamei'.

[0042] Configure different solutions, configure enough reagents for spraying according to the following ratio:

[0043] 1) Group T2 (calcium nitrate 2g / L): weigh 2g of calcium nitrate, add distilled water, and dilute to 1L;

[0044]2) Group T3 (brassinolide 0.10mg / L): Weigh 0.10mg of brassinosteroid, dissolve it in 10ml of ethanol, then add distilled water, and make it to 1L;

[0045] 3) Group T4 (proline 23mg / L): weigh 23mg proline, add distilled water, and dilute to 1L;

[0046] 4) Group T5: 23 mg of proline, 0.5 g of sodium bisulfite, 1.5 g of potassium dihydrogen phosphate, 0.08 g of triacontanol and 2 g of calcium nitrate were dissolved in distilled water to obtain the first mixed solution; Dissolve 0.1mg in 10ml of ethanol, then add it to the first mixed solution, mix well, add distilled water to make up to 1L, and mix well; in the obtained...

Embodiment 2

[0059] 1. Test materials and reagents

[0060] The cucumber variety tested was 'Jinchun No.4'; the pepper variety was 'Jiamei'.

[0061] Configure different solutions, configure enough reagents for spraying according to the following ratio:

[0062] 1) Group T2 (calcium nitrate 1g / L): Weigh 1g of calcium nitrate, add distilled water, and dilute to 1L;

[0063] 2) Group T3 (brassinolide 0.05mg / L): Weigh 0.05mg of brassinosteroid, dissolve it in 8ml of ethanol first, then add distilled water, and dilute to 1L;

[0064] 3) Group T4 (proline 20mg / L): weigh 20mg proline, add distilled water, and dilute to 1L;

[0065] 4) Group T5: 20 mg of proline, 0.3 g of sodium bisulfite, 1.2 g of potassium dihydrogen phosphate, 0.05 g of triacontanol and 1 g of calcium nitrate were dissolved in distilled water to obtain the first mixed solution; 0.05 mg was dissolved in 10 ml of ethanol, then added to the first mixed solution, mixed evenly, added distilled water to make up to 1 L, and mixed ...

Embodiment 3

[0073] 1. Test materials and reagents

[0074] The cucumber variety tested was 'Jinchun No.4'; the pepper variety was 'Jiamei'.

[0075] Configure different solutions, configure enough reagents for spraying according to the following ratio:

[0076] 1) Group T2 (calcium nitrate 3g / L): Weigh 3g of calcium nitrate, add distilled water, and dilute to 1L;

[0077] 2) Group T3 (brassinolide 0.15mg / L): Weigh 0.15mg of brassinosteroid, dissolve it in 10ml of ethanol, then add distilled water, and dilute to 1L;

[0078] 3) Group T4 (proline 28mg / L): weigh 28mg proline, add distilled water, and dilute to 1L;

[0079] 4) Group T5: 28 mg of proline, 0.8 g of sodium bisulfite, 1.8 g of potassium dihydrogen phosphate, 0.1 g of triacontanol and 3 g of calcium nitrate were dissolved in distilled water to obtain the first mixed solution; 0.15 mg was dissolved in 15 ml of ethanol, then added to the first mixed solution, mixed evenly, added distilled water to make up to 1 L, and mixed evenly...

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Abstract

The invention relates to the field of crop protection and in particular relates to a compound preparation for relieving low temperature and weak light stresses on crops and an application thereof. The compound preparation for relieving low temperature and weak light stresses on crops is mainly prepared from the following components in parts by weight: 0.020-0.028 part of proline, 0.3-0.8 part of sodium hydrogen sulfite, 1.2-1.8 parts of monopotassium phosphate, 0.05-0.10 part of triacontanol, 1-3 parts of calcium nitrate and 5*10<-5>-5*10<-4> parts of brassinolide. The compound preparation provided by the invention has the beneficial effects that all the components are plant hormones and nutrient elements essential to crop growth, are low in costs and are pollution-free; and as all the components have low temperature and weak light resistant synergistic effects, not only are the chlorophyll contents and photosynthesis of overground leaves of the crops under the conditions of low temperature and weak light increased but also growth and development of crop roots and the physiological functions are promoted and cold damages caused by cold current and long-time snow and ice weather can be prevented.

Description

technical field [0001] The invention relates to the field of crop protection, in particular to a compound preparation for alleviating low temperature and weak light stress of crops and its application. Background technique [0002] my country's protected cultivation is dominated by greenhouses. Its thermal insulation performance and light transmittance are low, the average light transmittance is only 50%, and the covering material is easy to adhere to dust. In winter and spring, continuous shade and haze often occur, which will lead to wilting of plants, poor growth, and even freezing damage, reduced production or even no harvest. . Low temperature and low light inhibit the physiological and growth activities of crops, such as photosynthetic enzyme activity, photosynthesis, cell structure stability, membrane integrity, and root absorption. At the same time, the impact of low light on plant growth and development is likely to be the result of changes in endogenous hormones....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00A01G9/00
CPCA01G22/00C05B7/00C05C5/04C05C11/00C05D9/00C05F11/10
Inventor 黄兴学汪爱华周国林王斌才邓耀华张润花林家早
Owner WUHAN VEGETABLE RES INST
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