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High-yield hybrid seed production method for cotton

A hybrid seed production and high-yield technology, applied in the direction of botany equipment and methods, application, plant gene improvement, etc., can solve the problems of reduced seed production purity, poor greenhouse development, and small number of seeds, etc., to achieve improved seed plumpness, The effect of improving the purity of seed production and increasing the germination rate

Inactive Publication Date: 2016-09-28
ANHUI JINPEIYIN TECH
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  • Description
  • Claims
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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 variet...

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Abstract

A high-yield hybrid seed production method for cotton is related to the technical field of hybrid seed production and has a following technical scheme: finishing female parent plants, removing all blossoms from the plants, pruning, and removing all branches and weak-inside poorly-developed shoots below first bolls; selecting buds to blossom on a second day from tiers of 2 to 4, and emasculating after 5 PM on the day; at 7-10 AM on the day before pollination or on the day of pollination, collecting mature but non-cracked anther, and drying in a dryer for pollination; generally at 7-10 AM, smearing pollen optionally with a writing brush or an eraser, applying gently to stigmas emasculated; harvesting approximately when fruits are sufficiently mature 50-70 days after pollination. The method enables improved cotton purity, increased cotton yield and improved seed 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 maturity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 樊友鑫
Owner ANHUI JINPEIYIN TECH
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