Unlock instant, AI-driven research and patent intelligence for your innovation.
Method for producing wheat double haploid by distant hybridization of corn and wheat
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of double haploid and distant hybridization, applied in horticultural methods, botanical equipment and methods, plant regeneration, etc., can solve the problems that affect the breeding process, difficult to adapt, etc., and achieve improved breeding efficiency and low equipment operating costs , good resistance effect
Active Publication Date: 2022-02-15
襄阳市农业科学院
View PDF3 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
The existing wheat haploid breeding technology is mainly to meet the pollen of normal autumn-sown wheat and winter greenhouse-grown corn at the flowering stage, and obtain DH plants after emasculation, pollination, hormone treatment, and chromosome doubling. Only one crop can be harvested a year. This affects the breeding process to a certain extent, and it is difficult to adapt to the current requirements for rapid breeding of new wheat varieties with high yield, high quality and multiple resistance
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0030] A method for producing double haploids of wheat by distant hybridization of corn and wheat, comprising the following steps:
[0031] The first step: In the experimental field of Xiangyang Academy of Agricultural Sciences, Hubei Province, in mid-April, organic fertilizers were applied to the experimental field. After the soil was improved, rake leveled and ditching was carried out. The sowing area of each variety was 13.33 square meters, and the row spacing was 0.667. meters, the plant spacing is 0.3 meters, and the planting density is 3300 plants / mu for division, for use;
[0032] Check the artificial climate chamber to ensure that the temperature control, humidity control, and light intensity regulation functions in each section are good, and the ventilation effect is good. The artificial climate chamber is subjected to ultraviolet disinfection and ozone treatment one week before wheat planting, and it is ready for use;
[0045] A method for producing double haploids of wheat by distant hybridization of corn and wheat, comprising the following steps:
[0046] The first step: In the experimental field of Xiangyang Academy of Agricultural Sciences, Hubei Province, in mid-April, organic fertilizers were applied to the experimental field. After the soil was improved, rake leveled and ditching was carried out. The sowing area of each variety was 13.33 square meters, and the row spacing was 0.667. meters, the plant spacing is 0.3 meters, and the planting density is 3300 plants / mu for division, for use;
[0047] Check the artificial climate chamber to ensure that the temperature control, humidity control, and light intensity regulation functions in each section are good, and the ventilation effect is good. The artificial climate chamber is subjected to ultraviolet disinfection and ozone treatment one week before wheat planting, and it is ready for use;
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention belongs to the technical field of wheat breeding, and particularly relates to a method for producing wheat double haploids by distant hybridization of corn and wheat. The method comprises the following steps: planting wheat by using an intelligent artificial climate chamber, and adjusting the flowering phase of wheat to meet the flowering phase of normally growing corn; performing castration, pollination, hormone treatment, embryo rescue, seedling strengthening and chromosome doubling to obtain the wheat double haploid. The problem of flowering asynchronism of normally growing corn and wheat is solved. The method is matched with a traditional method for producing the wheat double haploid through distant hybridization of normal autumn sowing wheat and winter greenhouse planting corn, and two-season wheat double haploid materials with good resistance and high yield can be harvested in one year; the wheat breeding efficiency is greatly improved; wheat is planted in the phytotron, operation is easy, conditions are appropriate, and the equipment operation cost is low.
Description
technical field [0001] The invention belongs to the technical field of wheat breeding, and in particular relates to a method for producing wheat double haploid by distant hybridization of corn and wheat. Background technique [0002] Conventional wheat breeding technology needs to obtain homozygous and consistent stable new strains through parent selection, sexual hybridization, offspring segregation, artificial selection, gene homozygosity, and new strain identification. It takes 6 to 8 years for the offspring to start to segregate to gene homozygosity Time, the breeding process of a new strain takes about 10 years, which is time-consuming and labor-intensive. [0003] Wheat double haploid breeding is gradually being adopted by breeding experts and commercial breeding enterprises because it can speed up the wheat breeding process and shorten the breeding time of new wheat varieties. The existing wheat haploid breeding technology is mainly to meet the pollen of normal autum...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More