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Plant growth regulator composition and application thereof

A technology of plant growth regulators and compositions, applied in the directions of plant growth regulators, plant growth regulators, applications, etc., can solve problems such as different sensitivities to salt stress, and achieve the effects of improving growth and promoting accumulation

Inactive Publication Date: 2011-01-26
INST OF BOTANY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no uniform standard for the concentration lower limit of salt stress, and different plant species show different sensitivities to salt stress

Method used

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  • Plant growth regulator composition and application thereof
  • Plant growth regulator composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The cucumber variety used in the experiment is Zhongnong No. 8, which comes from the Chinese Academy of Agricultural Sciences. For potted plants, water the nutrient solution regularly and quantitatively, and the nutrient solution used is the aforementioned nutrient solution containing 300mM NaCl.

[0018] The experiment consisted of two treatments, the control group and the test group.

[0019] The composition of the control spray solution is as follows: 100L of water and 0.2ml of ethanol.

[0020] The composition of the plant growth regulator composition of the test group is as follows: 1 mg of 24-epibrassinolide, 0.2 ml of ethanol and 100 L of water. The concentration of 24-epibrassinolide in the growth regulator was 0.02 μM. The plant growth regulator composition is prepared according to the following steps: first mix 1 mg of 24-epibrassinolide with 0.2 ml of ethanol, and then add 100 L of water and mix to obtain the plant growth regulator composition.

[0021] Th...

Embodiment 2

[0024] According to exactly the same steps as in Example 1, only the composition of the test group and the control group is changed as follows:

[0025] The composition of the control group was as follows: 100 L of water and 0.5 ml of ethanol.

[0026] The composition of the plant growth regulator composition of the test group is as follows: 5 mg of 24-epibrassinolide, 0.5 ml of ethanol and 100 L of water, and the concentration of 24-epibrassinolide is 0.1 μM.

[0027] After 3 weeks of growth, the biomass of two groups of cucumber plants was measured and the average value was taken. The obtained results are: the biomass fresh weight of the cucumber plants in the control group is 13±0.15 g / plant. The physical photos of the cucumber plants in the test group are as follows: figure 1 Shown, show that the plant growth regulator composition provided by the present invention obviously promotes the growing vigor of cucumber, and the biomass of cucumber plant increases to 16.9 ± 0.35...

Embodiment 3

[0029] According to exactly the same steps as in Example 1, only the composition of the test group and the control group is changed as follows:

[0030] The composition of the control group was as follows: 100 L of water and 1 ml of ethanol.

[0031] The composition of the plant growth regulator composition of the test group is as follows: 25 mg of 24-epibrassinolide, 1 ml of ethanol and 100 L of water, and the concentration of 24-epibrassinolide is 0.5 μM.

[0032] After 3 weeks of growth, the biomass of two groups of cucumber plants was measured and the average value was taken. The obtained results are: the biomass fresh weight of the cucumber plants in the control group is 13±0.25 g / plant, the biomass of the cucumber plants in the test group is 14.5±0.3 g / plant, and the biomass increases by 10% compared with the control group.

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Abstract

The invention discloses a plant growth regulator composition and application thereof. The composition uses 24-epibrassinolide as an active ingredient. The composition comprises the 24-epibrassinolide, ethanol and water. The used amount ratio of the 24-epibrassinolide to the ethanol to the water is 1-25mg: 0.2-1ml: 100L, preferably 5mg: 0.5ml: 100L. The invention provides a method for promoting cucumber growth under a slat stress condition, which comprises a step of spraying the plant growth regulator composition on the surfaces of cucumber plants, wherein the spraying is performed once a weak; the total spraying times range from 1 to 12; the spraying is executed for the first time when two cotyledons of a cucumber plant are unfolded completely; and the spraying parts are the leaf surfacesof the cucumber plants. The plant growth regulator composition provided by the invention can improve the growth of the cucumber under salt stress, promote the ground and underground accumulation of biomass liveweight and guarantee the cucumber production in salinized regions.

Description

technical field [0001] The invention relates to a plant growth regulator composition and its application. Background technique [0002] Soil salinization is an important factor limiting plant growth (Yang Shaohui et al. Research progress on the effects of salt stress on plants [J]. Molecular Plant Breeding, 2006, 4: 139-142). Vegetable production requires a high supply of soil water and fertilizer. In the actual production process, improper operation often leads to soil salinization. Soil salinization seriously restricts vegetable production in my country, especially in areas where fresh water resources are relatively scarce. [0003] The main cause of salt stress damage to plants is the inorganic salt NaCl, and even low concentrations of NaCl can significantly inhibit the quality and yield of cucumber. At present, there is no uniform standard for the lower limit of salt stress concentration, and different plant species show different sensitivities to salt stress. It is ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/22A01P21/00A01G7/06A01G1/00
Inventor 张文浩王宝兰李银心
Owner INST OF BOTANY CHINESE ACAD OF SCI
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