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Cotton cytoplasmic-nuclear sterile line motorized sprayer blowing breeding hybridization seed production method

A hybrid seed production and sprayer technology, applied in the field of crop cultivation, can solve the problems of heavy workload, rising labor costs, and declining cotton hybrids, and achieve good economic and social benefits, increase cotton production, and increase income.

Pending Publication Date: 2019-01-11
江西省棉花研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The use of hybrid vigor is an effective way to greatly increase crop yield and improve quality, but in recent years the utilization of cotton hybrids has shown a downward trend year by year
The main reason is that cotton is infinite tidbits, artificial emasculation, long pollination time, heavy workload, and rising labor costs, which further restrict and hinder the production and promotion of cotton hybrids

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Example 1: Cotton plasmon-nuclear interaction male sterile line bumblebee pollination reproduction, in the breeding field, plant the transgenic insect-resistant plasmon-nuclear interaction male sterile line JA-07 and the corresponding maintainer line JB-07, the male sterile line JA-07 is The female parent, the maintainer line JB-07 is the male parent, each row of female parent corresponds to each row of male parent, planted at intervals, the ratio of parent to parent is 1:1, corn is planted around the breeding field for isolation and no other lines are planted within one kilometer of the breeding field of cotton. At 9:00-10:00 a.m. per mu of breeding field during the current flowering period (the time when the pollen activity is the best), use a motorized sprayer to blow air from the maintainer or restorer line to the sterile cotton plant to suspend the pollen in the air for a short time , the CMS completes pollination. Aug. 25 - Aug. 30 Cessation of pollination with m...

Embodiment 2

[0011] Example 2: Cotton plasmon-nuclear interactive sterile line bumblebee pollination hybrid seed production, in the seed production field, plant the transgenic insect-resistant insect-plasmic nuclear interactive sterile line JA-07 and the corresponding restorer line JR-31, male sterile line JA -07 is the female parent, and the restoration line JR-31 is the male parent. Each row of female parent corresponds to each row of male parent. The ratio of parent to parent is 1:1. Other strains of cotton are grown. During the current flowering period, 9:00-10:00 a.m. (period of the best pollen activity) in the field per mu, use a motorized sprayer to blow air from the restorer line to the sterile line cotton plants, so that the pollen is suspended in the air for a short period of time, making them sterile. Pollination is complete. Aug. 25 - Aug. 30 Cessation of pollination with motorized sprayer blowing (stop pollination). When harvesting flowers, the seeds collected from the steri...

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PUM

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Abstract

The invention discloses a cotton cytoplasmic-nuclear sterile line motorized sprayer blowing breeding hybridization seed production method. According to the cotton cytoplasmic-nuclear sterile line motorized sprayer blowing breeding hybridization seed production method, a transgenic insect-resistant cytoplasmic-nuclear sterile line is taken as a female parent, a transgenic cytoplasmic-nuclear maintainer line or a restorer line is taken as a male parent, the sterile line and the maintainer line or the restorer line are planted in a stuggered row planting manner; at flowering period, in each mu ofbreeding or seed production field, every morning, a motorized sprayer is used for blowing over from the maintainer lines to the restorer lines, so that pollens are suspended in the air for a short time period, and sterile line pollination is realized; no other cotton material is planted in an area of 1km around the breeding or seed production field. The advantages of the cotton cytoplasmic-nuclear sterile line motorized sprayer blowing breeding hybridization seed production method are that: in breeding or seed production, no artificial emasculation or pollination is needed, the motorized sprayer is adopted for blowing pollination, in breeding of the sterile lines, the maintainer lines are produced, or in production of hybrid varieties, the restorer lines are produced. Time is saved, the cotton cytoplasmic-nuclear sterile line motorized sprayer blowing breeding hybridization seed production method is friendly to the environment; cost is low; it is beneficial for cotton hybrid variety popularization and applications, cotton yield is increased, income is increased, and excellent economical and social benefit is achieved.

Description

technical field [0001] The invention relates to the technical field of crop cultivation, in particular to a method for blowing propagation hybridization seed production method of cotton phytonuclear interactive male sterile line with motorized sprayer. Background technique [0002] The use of hybrid vigor is an effective way to greatly increase crop yield and improve quality, but the utilization of cotton hybrids has shown a downward trend year by year in recent years. Its main reason is that cotton is infinite tidbits, artificial emasculation, long pollination time, heavy workload, and rising labor costs further restrict and hinder the production and promotion of cotton hybrids. Therefore, finding a simplified, high-efficiency, and low-cost cotton hybrid production method has become an urgent problem and development direction for hybrid breeding. It is one of the effective ways to solve the current bottleneck of cotton hybrid seed production and promote the utilization of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
CPCA01H1/02A01H1/027
Inventor 李永旗谢业涛孙亮庆夏绍南陈俊英张丽娟王涛邓艳凤肖水平
Owner 江西省棉花研究所