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High-yield hybrid seed production method of cotton

A hybrid seed production and high-yield technology, applied in botany equipment and methods, applications, plant genetic improvement, etc., can solve the problems of poor pollination and fertilization, difficult flower selection, cotton seed production restrictions, etc., to achieve easy flower selection , easy pollination and fertilization, and the effect of improving the purity of seed production

Inactive Publication Date: 2015-10-07
ANHUI HUIDA AGRO
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AI Technical Summary

Problems solved by technology

[0002] The current cotton seed production mainly uses the method of detasseling and pollination at the same time for flower selection. If the pollination is already produced, the purity of seed production will be reduced. If the selected flowers are too small, the growth of the flower room will not be good, especially the stigma, the pollination and fertilization effect will be poor, and it will be difficult to sit on the fruit.
Traditional cotton pollination methods have limited cotton seed production

Method used

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Embodiment Construction

[0014] The present invention is mainly aimed at the flower selection and pollination link, and the detailed process of main hybrid seed production is as follows:

[0015] 1. Strict isolation: Although cotton is a common cross-pollinated crop, and the possibility of pollen spreading by wind is small, cotton flowers are very attractive to insects, which can easily cause biological mixing and affect seed quality. Therefore, the isolation distance between cotton planting fields and other cotton varieties is required to be more than 500 meters.

[0016] 2. Sowing at the right time: The optimum temperature for cotton pollen germination is 20-25°C, so seedlings of the right age should be cultivated by adjusting the sowing time and controlling the temperature. In order to make the parents reach the full flowering stage at the right time for hybridization, seedlings can be raised in cold beds. The early and mid-maturing varieties are sown in early November, and the late-maturing ...

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Abstract

The invention relates to the technical field of hybrid seed production, in particular to a high-yield hybrid seed production method of cotton. According to the technical scheme, the method includes: sorting female plants, removing full blossoms from the female plants, pruning branches, and removing all branches and inner weak shoots poorly developed below each first fruit; selecting buds, about to blossom the next day, from the second to fourth layers of blossoms on each plant, and performing emasculation after 5 P.M. on the very day; at 7 to 10 in the morning of the previous day or in the morning of the very day, collecting mature non-cracking anthers, and drying them in a dryer for pollination; generally at 7 to 10 in the morning, slightly smearing pollen to emasculated stigmas with a writing brush or a rubber head; harvesting fruits fully mature about 50 to 70 days after pollination. The method has the advantages that produced cotton seeds are higher in purity, yield and fullness.

Description

technical field [0001] The invention relates to the technical field of hybrid seed production, in particular to a high-yield hybrid seed production method for cotton. Background technique [0002] The current cotton seed production mainly uses the method of detasseling and pollination at the same time for flower selection. If the pollen is produced, the purity of seed production will be reduced. If the selected flowers are too small, the growth of the flower room will not be good, especially the stigma, the pollination and fertilization effect will be poor, and it will be difficult to sit on the fruit. Traditional cotton pollination methods have limited cotton seed production. Contents of the invention [0003] The purpose of the present invention is to provide a high-yield hybrid seed production method of cotton, which selects the flowers that will open the next day, the flowers are moderately selected, and the flower stigmas grow and develop overnight, and the matu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 不公告发明人
Owner ANHUI HUIDA AGRO
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