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Method for improving cotton anti-waterlogging threat

A waterlogging stress, cotton technology, applied in the field of improving cotton waterlogging stress resistance, can solve the problems of affecting yield, boll weight and clothing content reduction, etc., to achieve the effect of increasing yield, improving waterlogging resistance ability, and reducing impact

Inactive Publication Date: 2017-06-13
YANGTZE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reduction of boll formation after cotton flooding is the main reason for cotton production reduction caused by waterlogging. Flooding can inhibit the development of cotton bolls and fiber development, resulting in a decrease in boll weight and clothing content, which seriously affects yield.

Method used

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  • Method for improving cotton anti-waterlogging threat
  • Method for improving cotton anti-waterlogging threat
  • Method for improving cotton anti-waterlogging threat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1. Spermine (Spm) can improve the waterlogging resistance of cotton seedlings

[0018] 1.1 Test steps:

[0019] Indoor pot test: the cultivation temperature is 20-25°C. Select six pots of Ekangmian 13 as the experimental object, and divide each three pots into one group, a total of two groups. When the seedlings grow to the 2-leaf stage, put the cultivation pots for cultivating seedlings into plastic buckets, and water until the soil surface is clear. water. One of the groups (labeled Spm) is treated with 2mmol / L spermine (Spm) solution after 24 hours of water soaking, spraying once every three days, spraying 5ml per plant each time, and paying attention to replenishing waterlogging; the other group (labeled CK) used distilled water instead of spermine (Spm) sprayed seedlings as a control, and also sprayed once every three days, while paying attention to replenishing waterlogging.

[0020] After 2 weeks, photos were taken, and the plant height, fresh weight and dry w...

Embodiment 2

[0028] 2. Spermine (Spm) can increase cotton yield under field waterlogging conditions

[0029] 2.1 Test steps:

[0030] The experiment was carried out at the flower bud stage of Ekangmian 13 (early July), and six test cotton fields were selected, all of which were waterlogged until the field just appeared clear water, and remained in a state of waterlogging all the time.

[0031] The test cotton field randomly selects three cotton fields (marking Spm) as a group, sprays the spermine (Spm) solution of 2mmol / L concentration in the evening after 24 hours of waterlogging, sprays once every three days, and each spraying amount is 40 liters / mu; the other three cotton fields (labeled CK) were used as a group, treated with clean water instead of spermine (Spm), as a control experiment. Both cotton fields were waterlogged for 15 days and returned to normal water management.

[0032] The total number of fruit nodes, boll number per plant, boll removal rate, boll weight, plot seed cot...

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Abstract

The invention discloses a method for improving cotton anti-waterlogging threat. The method for improving the cotton anti-waterlogging threat is characterized in that a spermine solution is sprinkled after cotton is waterlogged in the cotton growing period; the cotton growing period comprises a seedling period and / or a bud period, the concentration of the spermine solution is 1-3 mmol / L, and the preferable concentration is 2 mmol / L; the frequency of sprinkling the spermine solution is sprinkling once every 2-4 days, the preferable frequency is sprinkling once every 3 days, the sprinkling quantity of the spermine solution every time is 20-60 L / mu (mu is a Chinese area unit and is equal to 666.67 m<2>), and the preferable sprinkling amount every time is 40 L / mu (mu is a Chinese area unit and is equal to 666.67 m<2>). According to the method for improving the cotton anti-waterlogging threat, by sprinkling the spermine solution, the anti-waterlogging threat capacity of the cotton can be effectively improved, and the yield of the cotton under the circumstance of waterlogging is increased.

Description

technical field [0001] The invention belongs to the field of agricultural production, and in particular relates to a method for improving cotton waterlogging stress resistance. Background technique [0002] Cotton is sensitive to waterlogging, and waterlogging disasters have the greatest impact on cotton yield during the period from budding to boll opening. The reduction of boll formation after cotton flooding is the main reason for the reduction of cotton production caused by waterlogging. Flooding can inhibit the development of cotton bolls and fiber development, resulting in a decrease in boll weight and cotton content, which seriously affects yield. In recent years, seasonal waterlogging disasters have seriously affected the growth and development of cotton, resulting in a significant reduction in cotton yield, which has severely impacted cotton production and related industries. Therefore, in addition to breeding varieties suitable for planting in waterlogged areas, se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/06A01N33/04A01P21/00
CPCA01G7/06A01N33/04
Inventor 李云富刘才耿宏叶宁慧宇邹华文
Owner YANGTZE UNIVERSITY
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