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A kind of breeding method of high temperature resistant cotton

A technology of high temperature resistance and cotton, which is applied in horticultural methods, cotton cultivation, botanical equipment and methods, etc., can solve the problems of being easily affected by environmental temperature changes and other conditions, fuzzy judgment standards, and difficult control of processing, etc., to achieve effective Conducive to target-directed variation, saving time, and reducing the cost of creation and cultivation

Active Publication Date: 2021-01-12
荆州农业科学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because this method needs to build a simple high-temperature greenhouse for artificial high-temperature stress treatment at the initial flowering stage of cotton, it is relatively time-consuming, the treatment is not easy to control, and is easily affected by environmental temperature changes and other conditions, and the pollen germination rate is only for identification, and the judgment standard is vague

Method used

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  • A kind of breeding method of high temperature resistant cotton
  • A kind of breeding method of high temperature resistant cotton
  • A kind of breeding method of high temperature resistant cotton

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Experimental program
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Effect test

Embodiment 1

[0037] Breeding of Jingmian 32920 Line and Jingkang 37-2012 Line

[0038] (1) Basic materials and preliminary screening

[0039] In 1999, they were imported from the national germplasm bank of Zhongmian Institute 12, Zhongmian Institute 35, Zhongmian Institute 23, Simian 4, Emian 10, Emian 6, Emian 8, Luyanmian 25, and Kemian 25. Mian 4, Xiangmian 03 series, Sumian 12, Xinhai 211, 86-1, Yumian 35, 9511 selected from materials retained by Jingzhou Academy of Agricultural Sciences (high temperature resistant potential materials or varieties retained in the unit) , 9526, 9835, 9836, 9967, 02118, 02005, 02009, JD02, JD05, JD07, Jing 3260, Jing 3710, Jing 4215, Jinghai 9703 and other basic materials were sown in Jingzhou Academy of Agricultural Sciences on May 5 Artificial greenhouse, carry out sub-high temperature environment training, plant 6 rows of each material, planting density at 2200 plants / mu; when 50% of the plants bloom on the 4th fruiting branch (July 16), start to con...

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Abstract

The invention discloses a breeding method of high-temperature-resistant cotton and provides a basis for breeding new materials and new varieties of high-temperature resistant cotton. According to themethod, firstly, a candidate parent material with high temperature resistance is screened out by training a basic material with high temperature resistance potential, and high-temperature training andsister hybridization are carried out on pollen of the candidate parent material; secondly, seeds obtained by sister hybridization are sowed in a high-temperature environment, the candidate parent material is screened out, a high-temperature potential parent material is established at the same time, and field pollen high-temperature training and screening of the high-temperature potential parent material under natural conditions are carried out; thirdly, material-to-material or plant-to-plant hybridization is conducted on the screened parent material with high-temperature resistance potentialin a high-temperature environment to obtain a specific high-temperature-resistant hybrid material, and further the specific high-temperature-resistant hybrid material is screened to obtain the high-temperature-resistant cotton parent material. The breeding target of the method is clear and definite, the pertinence is strong, the directional selection is clear and definite, meanwhile, the cost is reduced, and the time is saved.

Description

technical field [0001] The invention belongs to the field of crop breeding, in particular to a method for breeding high-temperature-resistant cotton. Background technique [0002] my country is the largest textile and clothing producer in the world. As the main textile material, raw cotton has a large demand and relatively insufficient self-sufficiency. Cotton is the only seed fiber crop. Among the bulk agricultural products such as grain, cotton, oil and sugar, only cotton is irreplaceable. Therefore, the production of cotton has particularly important strategic and social significance in my country's agriculture. [0003] Cotton production has always been in the summer of our country, and its flowering period is relatively long. Among them, June to August is the hottest season of the year, which is also an important period for the formation of cotton production. Studies have shown that when cotton enters the bud stage (the early stage of reproductive growth), the temperat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02A01H1/04A01G22/50A01G7/06
CPCA01G7/06A01H1/02A01H1/04A01G22/50
Inventor 胡爱兵郭志明张贤红
Owner 荆州农业科学院
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