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Bio-chemical labelled auxiliary breeding technology for short-term cotton with early mature and without progeria

A marker-assisted breeding, short-season cotton technology, applied in the directions of botanical equipment and methods, applications, plant genetic improvement, etc., can solve the problems of labor and time-consuming, and achieve excellent fiber quality comprehensive indicators, high activity, and improved photosynthesis. The effect of efficiency

Inactive Publication Date: 2005-02-23
COTTON INST CHINESE AGRI ACAD
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AI Technical Summary

Problems solved by technology

Since environmental effects can easily cover up genetic effects, it is time-consuming and labor-intensive for breeders to select for early maturity and no premature senescence traits

Method used

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Comparison scheme
Effect test

Embodiment approach

[0021] Parent selection: collect excellent germplasm at home and abroad, identify and screen available excellent materials. Choose precocious and non-precocious varieties with excellent comprehensive traits as parents, especially early-maturing and non-precocious varieties as female parents. Zhongmiansuo 24 is a high-yield, disease-resistant, and widely adaptable early-maturing and non-premature variety Zhong 343 as the female parent, and the high-strength high-quality material (Zhong 10 × Mei B Zao) n generation is used as the male parent to carry out hybridization. , High-quality traits were transferred into domestic self-fertilizing intermediate materials, recombined, and bred into Zhong 621, a new variety that is early-maturing, not prematurely aging, high-quality, and multi-purpose. Zhongmiansuo 27 uses Zhong0710, a precocious and high-quality new crystal line related to Mei B Zao, as the female parent, and crosses with Zhong5427, which has fast emergence, vigorous growth...

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Abstract

A biochemical marker aided culture technique for culturing the short-period cotton varieties 'Zhongmiansuo No.16, 24, 27 and 36' with prematurity but no presenility includes such steps as hybridization between premature but non-presenile parents, using SOD, POD and CAT as selection markers to choose the crossed descendants beginning from F2 generation, and conventional breeding.

Description

1. Technical field [0001] The invention relates to a crop breeding method in the field of agricultural science and technology, which is used for selecting new short-season cotton varieties with early maturation and no premature senescence, green branches and green leaves and white flocs in the hybrid offspring population. 2. Background technology [0002] The successful breeding of short-season cotton varieties has opened up broad prospects for solving the long-standing contradictions between grain and cotton competition for land and season in my country's cotton regions, and improving the economic and ecological benefits of cotton fields. Low temperature and pest damage, labor saving, investment saving, significant economic benefits, welcomed by cotton farmers. [0003] The main problem in the short-season cotton breeding process is to coordinate the relationship between prematurity and premature senescence. Precocious maturity is the key to achieving dual cropping of wheat ...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
Inventor 喻树迅宋美珍范术丽原日红黄祯茂
Owner COTTON INST CHINESE AGRI ACAD
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