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Cutting Propagation Technology of Cotton Nodes

A technology of cutting propagation and joint position, which is applied in the field of asexual propagation of crops, can solve the problems of not being able to produce and apply in large quantities, no successful reports, and not being able to complete it at one time, and achieve good practical value, low production cost, and easy operation.

Inactive Publication Date: 2011-11-30
HUNAN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above experiments can only be done in the laboratory, under the control of fluorescent lamps (illumination), suitable environment (temperature, humidity) and medium conditions, some of them can grow into seedlings, and they cannot be completed in field production at one time.
And due to the high cost, it cannot be mass-produced and applied
There are no successful reports at home and abroad on the rapid vegetative propagation of cotton seeds using node cutting technology.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] Examples: In the process of cotton breeding, the inventor found an excellent mutant. In order to speed up the reproduction, all the leaf branches and some fruit branches were selected for node cutting, and more seeds were obtained that year.

[0030] In April 2009, the applicant found a very useful genetic variant in Hainan. It was in the vegetative and reproductive growth period and could not harvest seeds. That is, some branches were cut off, wrapped in a wet towel, put in a plastic bag and taken back to Hunan. Select a section of the test site that is sheltered from wind and sunny, dig shallowly (8-10cm), finely trim, disinfect the soil with 0.5% carbendazim water solution, pour water until the soil is saturated, and divide it into 7cm with a rower 2 Of small squares. Then cut the brought back branches according to the node position, the skewer mouth is flat, not inclined, a total of 15 nodes, each node length is 5-8cm, and the node strips are cut into the center of ea...

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Abstract

The invention relates to the technical field of asexual reproduction of crops, in particular to a method for rapidly multiplying seeds by cutting cotton nodes. During the cotton growth and development season, the main stem node or fruiting branch node of the cotton plant is used to cut cuttings with a length of 5 to 8 cm, and one node and one leaf are used for cutting; The soil is disinfected, and the water content is subject to the saturation of the soil surface. Cover the top of the cuttings with an arch film, and seal them with soil around them to maintain temperature and humidity. After 20 days, it can be transplanted to the field. Field cultivation is the same as conventional cultivation. The cutting seedlings cultivated by this method have a transplanting seedling rate of about 98%, which can save costs.

Description

technical field [0001] The invention belongs to the technical field of asexual propagation of crops, and in particular relates to a method for quickly propagating seeds by cutting cotton nodes. Background technique [0002] At present, the reproduction of cotton is sexual reproduction, that is, the use of seeds for reproduction. If the cotton node cutting propagation technology is applied to cotton scientific research and production, one can avoid the separation of traits in sexual reproduction and rapidly expand the quality of cotton. The population can provide good parents for the utilization of excellent traits; the second is to speed up the propagation of special germplasm resources, such as the high-quality mutant strains or wild cotton found, often have no seeds or few seeds, at this time, node cuttings are used for propagation , can quickly increase seed production; third, it is used for heterosis fixation, and cutting propagation can maintain all the excellent traits...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00
Inventor 余政军李瑞莲周毅贺鹏毅余筱南刘爱玉刘少卿
Owner HUNAN AGRICULTURAL UNIV
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