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Method for prompting growth of cucumber under condition of low phosphorus stress and special plant growth regulator composite

A technology of plant growth regulators and compositions, applied in the direction of plant growth regulators, plant growth regulators, biocides, etc., can solve problems such as not being able to meet the physiological needs of crops, and achieve the effect of promoting accumulation and improving growth

Inactive Publication Date: 2013-10-09
INST OF BOTANY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Experiments have proved that the seasonal utilization rate of phosphorus fertilizer is only 10% to 25%, which cannot meet the physiological needs of crops

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The cucumber variety used in the experiment is Zhongnong No. 8, which comes from the Chinese Academy of Agricultural Sciences. Potted plants are regularly and quantitatively watered with nutrient solution, and the nutrient solution used is the aforementioned low-phosphorus nutrient solution.

[0014] The experiment consisted of two treatments, the control group and the test group.

[0015] The composition of the control spray solution is as follows: 100L of water and 0.1ml of ethanol.

[0016] The composition of the plant growth regulator composition of the test group is as follows: 0.5 mg of 24-epibrassinolide, 0.1 ml of ethanol and 100 L of water. The concentration of 24-epibrassinolide in the plant growth regulator composition is 0.01 μM. The plant growth regulator composition is prepared according to the following steps: first mix 0.5 mg of 24-epibrassinolide with 0.1 ml of ethanol, and then add 100 L of water and mix to obtain the plant growth regulator compositi...

Embodiment 2

[0020] 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:

[0021] The composition of the control group was as follows: 100 L of water and 0.25 ml of ethanol.

[0022] The composition of the plant growth regulator composition of the test group is as follows: 2.5 mg of 24-epibrassinolide, 0.25 ml of ethanol and 100 L of water, and the concentration of 24-epibrassinolide is 0.05 μM.

[0023] After 4 weeks of growth, for the control group, the biomass fresh weight of the cucumber plants was 18 ± 0.25 g / plant, and the biomass of the cucumber plants in the test group was 21.5 ± 0.35 g / plant, which was an increase of 20% compared with the control group.

Embodiment 3

[0025] 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:

[0026] The composition of the control group was as follows: 100 L of water and 0.5 ml of ethanol.

[0027] The composition of the plant growth regulator composition of the test group is as follows: 10 mg 24-epibrassinolide, 0.5 ml ethanol and 100 L water, and the concentration of 24-epibrassinolide is 0.2 μM.

[0028] After 4 weeks of growth, for the control group, the biomass fresh weight of the cucumber plants was 18 ± 0.2 g / plant, and the biomass of the cucumber plants in the test group was 19.7 ± 0.1 g / plant, which was an increase of 9% compared with the control group.

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Abstract

The invention discloses a method for prompting the growth of a cucumber under the condition of low phosphorus stress and a special plant growth regulator composite. The composite is prepared from 24-epibrassinolide as an active ingredient, alcohol and water, wherein the usage ratio of the 24-epibrassinolide as the active ingredient to the alcohol to the water is 0.5-10mg to 0.1-0.5ml to 100L, preferably 2.5mg to 0.25ml to 100L. The method for prompting the growth of a cucumber under the condition of low phosphorus stress comprises the step of spraying above plant growth regulator composites on the surface of the cucumber plant, wherein the times of spraying is once at each week, the total spraying times are 1-12th, and the spraying part is the leaf surface of the cucumber plant. In the invention, the plant growth regulator composite can improve the growth of the cucumber under the condition of low phosphorus stress, prompt the accumulation of ground and underground biomasses and provides the guarantee for the cucumber production in the phosphorus deficiency area.

Description

technical field [0001] The invention relates to a method for promoting the growth of cucumber under the condition of low phosphorus stress and a special plant growth regulator composition. Background technique [0002] Phosphorus is an essential macronutrient element in the process of plant growth and development. It participates in many physiological and biochemical processes in plants and is indispensable in the process of plant growth and metabolism. Phosphorus used by plants comes mainly from the soil. In most soils, due to the low diffusion coefficient and poor mobility of phosphorus in the soil, the limited available phosphorus is mainly concentrated on the soil surface, and the concentration also decreases with the deepening of the soil profile. Soil inorganic phosphorus is the main source of phosphorus required by plants, and most soil available phosphorus (PO 4 3- ) concentration is 0.1~10μM, which is far lower than the concentration required for normal plant gro...

Claims

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Application Information

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