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A method for regulating cotton plant structure

A technology of plant type and cotton, applied in the field of cotton plant type regulator, regulating cotton plant type structure, can solve the problems of increasing the cost of cotton fields, environmental pollution, etc.

Active Publication Date: 2020-11-03
INST OF COTTON RES CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But, at present, the consumption of metramine in the cotton field increases year by year, and the consumption per mu has increased to about 4 grams, which not only increases the cost of the cotton field, but also causes environmental pollution

Method used

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  • A method for regulating cotton plant structure
  • A method for regulating cotton plant structure
  • A method for regulating cotton plant structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Experimental selection of materials and field design

[0038] Lumianyan 28 was selected as the experimental variety, and it was sown on April 23, 2017 in the East Field of the Cotton Research Institute of the Chinese Academy of Agricultural Sciences, Baibi Town, Anyang City, Henan Province. The cotton planting density is 3,500 plants / mu, the plant spacing is 28cm, and the row spacing is 70cm. The cotton management is the same as that of the local conventional high-yield cotton fields.

[0039] (2) Preparation of ethephon solution

[0040] Ethephon was purchased from Beijing Solarbio Company, and the purity of the reagent was ≥90%. A mother solution with an ethephon concentration of 100 mg / mL was prepared with an appropriate amount of distilled water, and stored in a refrigerator at 4°C. During the test, the concentration gradient dilution method was used to prepare the mother liquor into working solution concentrations of 50mg / L, 100mg / L, 300mg / L, 600mg / L and 800m...

Embodiment 2

[0057] On the basis of Example 1, the amount of ethylene utilization was limited to 4.5 g / mu, and the cotton plant type regulator solution with the formula shown in Table 3 was used to spray the cotton field. See Table 4 for the plant height, yield and quality of cotton harvested in November:

[0058] table 3

[0059]

[0060] Table 4

[0061]

[0062] It can be seen from Table 4 that the cotton plant height can be adjusted to 106.89 cm by using the cotton plant type regulator solution of Example 2, which is lower than that of the control group, but has no significant difference from the treatment effect of the experimental group 3. And each quality index of boll weight, clothing fraction, fiber length, fiber strength and length uniformity of cotton is all higher than control group and experimental group 3, therefore can draw a conclusion: the cotton plant type regulating agent solution of embodiment 2 can make cotton Regulate to the ideal plant type, and its quality i...

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Abstract

The invention provides a method of regulating a cotton plant type structure. The method comprises the step of spraying a cotton plant type regulator solution into a cotton field. The cotton plant typeregulator solution contains ethephon, and the use amount of ethephon is 3 to 7.5 g / mu, which can transform a loose cotton plant type into a compact type. The invention also provides a specific formula for the cotton plant type regulator, which is of great significance for improving the cotton planting density, increasing the cotton yield and the quality, reducing the labor cost and improving themechanized production level.

Description

technical field [0001] The invention relates to the technical field of plant growth regulation, in particular to a method for regulating cotton plant structure and a corresponding cotton plant regulator. Background technique [0002] Cotton is a worldwide important fiber crop and plays an important role in the national economy. However, the traditional cotton planting industry is highly labor-intensive and mainly relies on a large amount of labor for production. This labor-intensive production mode has become a bottleneck restricting the development of the cotton planting industry. Mechanization of the entire process of cotton planting is the only way out. However, a reasonable plant structure is the key to mechanized harvesting, and also the key to reasonable dense planting and increased production. Therefore, shaping the ideal plant type of cotton, coordinating the relationship between cotton plant growth and external environmental conditions, vegetative growth and reprod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/50A01G7/06A01N27/00A01N59/26A01N59/14A01N33/12A01P21/00
CPCA01G7/06A01G22/50A01N27/00A01N33/12A01N59/14A01N59/26
Inventor 庞朝友巨飞燕赵新华张思平刘绍东马慧娟陈静葛常伟刘卫星沈倩刘瑞华张小萌
Owner INST OF COTTON RES CHINESE ACAD OF AGRI SCI
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