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Breeding method of insect-resistant upland long stapled cotton

A long-staple cotton and insect net technology, which is applied in botany equipment and methods, plant genetic improvement, angiosperms/flowering plants, etc., can solve problems such as low yield, limited sea-island cotton planting area, and the healthy and sustainable development of the cotton industry. problems, to achieve the effect of enhancing self-sufficiency and improving market competitiveness

Active Publication Date: 2017-09-29
COTTON SCI RES INST OF HUNAN
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Problems solved by technology

Long-staple cotton generally refers to sea-island cotton. my country's long-staple cotton is only grown in Xinjiang, but the sea-island cotton planting area is limited and the output is extremely low. The annual output of sea-island cotton used to produce long-staple cotton in my country is less than 100,000 tons, while the annual demand About 500,000 tons, more than 80% need to be imported, "foreign goods entering the market" seriously plague the healthy and sustainable development of my country's cotton industry

Method used

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  • Breeding method of insect-resistant upland long stapled cotton

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] In the winter of 2005, Sanya, Hainan, crossed Zhongmiansuo No. 12 as the female parent and Darwin's cotton as the male parent.

[0018] In 2006, Changde, Hunan, with (Zhongmian Institute No. 12 × Darwin's cotton) F 1 It is the female parent, and Zhongmiansuo No. 12 is the male parent, backcrossed. Mix the seeds.

[0019] In the winter of 2006, Sanya, Hainan, with (Zhongmian Institute No. 12 × Darwin's cotton) BC 1 f 1 It is the female parent, and Zhongmiansuo No. 12 is the male parent, backcrossed. Individual plants were collected and fibers were examined. Single plants with fiber length ≤ 30mm, specific breaking strength ≤ 30cN / tex, micronaire value 4.2 were eliminated.

[0020] In 2007, Changde, Hunan, with (Zhongmian Institute No. 12 × Darwin's cotton) BC 2 f 1 It is the female parent, and Zhongmiansuo No. 12 is the male parent, backcrossed. Individual plants were collected and fibers were examined. Compared the traits such as plant type, fiber quality, bol...

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Abstract

The invention discloses a breeding method of insect-resistant upland long stapled cotton. By adopting CRICAAS (Cotton Research Institute of Chinese Academy of Agricultural Sciences) No. 12 as a female parent and Darwinii cotton as a male parent, hybridization is carried out; F1 hybrid is used as a female parent, backcross on the F1 hybrid and the CRICAAS No. 12 is carried out for three times to obtain BC3F1; by using the BC3F1 as the female parent, hybridization on the BC3F1 and parental L41 of Xiangzamian No. 3 is carried out to obtain hybrid generation 1 used as a female parent, modification backcross on the hybrid generation 1 and the BC3F1 is carried out, and the backcross is carried out for four times to obtain BC4F1; then by using the BC4F1 as a female parent, the hybridization on the BC4F1 and Xinhai No. 5 is carried out, the backcross on the obtained hybrid generation 1 used as the female parent and the BC4F1 is carried out for four times; cotton-sealing inbreeding is carried out for six times, and separation is produced; finally, the insect-resistant long stapled cotton Xiang C176 is obtained. The yield of the Xiang C176 obtained by the invention is far higher than that of sea island cotton, and the insect-resistant upland long stapled cotton can be demonstrated and popularized in national main cotton planting areas, thereby increasing the self-supply ability of the long stapled cotton in China, and increasing the market competitiveness of high-grade raw cotton.

Description

technical field [0001] The invention relates to the technical field of cotton variety breeding, in particular to a method for breeding insect-resistant upland long-staple cotton. Background technique [0002] Long-staple cotton is the raw material for spinning high-count yarn and special textile industry. With the improvement of people's living standards and the development of modern high-speed spinning technology, the demand for long-staple cotton in domestic and international markets will continue to increase. Long-staple cotton generally refers to sea-island cotton. my country's long-staple cotton is only grown in Xinjiang, but the sea-island cotton planting area is limited and the output is extremely low. The annual output of sea-island cotton used to produce long-staple cotton in my country is less than 100,000 tons, while the annual demand About 500,000 tons, more than 80% need to be imported, "foreign goods entering the market" seriously plague the healthy and sustaina...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H5/00
CPCA01H1/02A01H5/00
Inventor 陈浩东匡政成李玉军李育强
Owner COTTON SCI RES INST OF HUNAN
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