Breeding method of entire silo corn hybrids

A technology for silage corn and hybrids, which is applied in the field of corn hybrid seed production, can solve the problems of restricting the rapid development of animal husbandry, lack of silage corn varieties, and unsatisfactory cultivation effects, so as to reduce the cost of seed production and ensure the yield of seed production , The effect of high yield in seed production

Inactive Publication Date: 2014-10-22
SHANXI ACADEMY OF AGRI SCI SORGHUM RES INST
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, Mexican corn is mainly promoted in the south of my country, and there are introductions in North China. However, because Mexican corn requires high temperature and high humidity, it is difficult to meet the climatic conditions in North China, and the cultivation effect is not ideal. The "Yanmenguan Animal Husbandry Economic Zone Construction" project in our province was launched. However, due to the shortage of silage and green mow varieties, Yayu No. 8 seed corn and Aventurine white and other comprehensive varieties can only be used as silage corn varieties. The lack of silage corn varieties has become a limitation to the rapid development of animal husbandry. the bottleneck

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Breeding method of entire silo corn hybrids

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Parental inbred line selection, space isolation, artificial hybridization, bagging isolation and self-purification, inbred line A selected inbred line Zao 2-1, inbred line B selected inbred line CH201, inbred line C selected inbred line The inbred line DL16, the inbred line Zao 2-1, the inbred line CH201 and the inbred line DL16 were selfed for 2-10 generations respectively. The pollen of the superior plant was collected, inoculated on the female flower of the female parent plant, and then put on the ear with a bag, so as to obtain the inbred line Zao 2-1, the inbred line CH201 and the inbred line DL16. During the test cross cultivation of the inbred line Zao 2-1 and the inbred line CH201, the ear and tassel should be artificially bagged to isolate the ear and tassel before earing, and the method of artificial cross-pollination should be used for silk loosening, and then the ear should be covered with a bag , in the harvested single-cross, select the superior strain as ...

Embodiment 2

[0023] Parental inbred line selection, space isolation, artificial hybridization, bagging isolation and self-purification, inbred line A selected inbred line H4, inbred line B selected inbred line CH201 inbred line C selected DL8, inbred line H4, the inbred line CH201 and the inbred line DL8 were selfed for 2-10 generations respectively. During the selfing process, the ear and tassel should be bagged and isolated manually before heading, and the pollen of the superior plant should be collected during silking and pollination, and given to the female parent. On the female flower of the plant, and then put the bag on the ear, so as to obtain the inbred line H4, the inbred line CH201 and the inbred line DL8. During the testcross cultivation of the inbred line H4 and the inbred line CH201, the ear and tassel should be isolated by artificial bagging before heading, and the method of artificial cross-pollination should be used when silking and loosening, and then the ear should be cov...

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

No PUM Login to view more

Abstract

The invention provides a breeding method of entire silo corn hybrids. The breeding method comprises the steps of breeding a parent selfing line, isolating spatially, artificially hybridizing, bagging for isolation and selfing for achieving homozygosity; performing test mating on a selfing line A and a selfing line B to obtain a single cross hybrid F1; and finally, carrying out test mating on the single cross hybrid F1 used as a female parent and a third selfing line C used as a male parent to breed the entire silo corn hybrid (three-way cross hybrid). The breeding method adopts three selfing lines to breed the entire silo corn hybrid and opens up a new method for breeding of the silo corn hybrid; the bred three-way cross hybrid has the characteristics of high quality, high biological yield and high seed production, contains more than 10% of crude protein, lower than 45% of neutral detergent fibers and lower than 25% of acid detergent fibers; two selfing lines are subjected to test mating to obtain the single cross hybrid, then the single cross hybrid used as the female parent and another one selfing line used as the male parent are used for seed production, and therefore, the seed production yield is ensured and the seed production cost can be reduced.

Description

Technical field: [0001] The invention relates to a seed production technology of corn hybrids, in particular to a method for breeding whole plant silage hybrid corns. Background technique: [0002] Corn is an important feed crop and food crop. Because of its high feed value, it is known as the "king of feed". Silage corn refers to a kind of corn specially used to raise poultry and livestock, and its ears, stems and leaves can be used as feed. Developed animal husbandry in the world, such as France, Canada, etc., have cultivated a large amount of special corn for silage for whole plant silage. According to Anon statistics, the area of ​​silage corn planted in Europe reaches 3.3 million hectares 2 . The total value of silage corn produced in the United States is approximately $1.5 billion annually. Silage corn has a high yield and is rich in nutrition. It is the most important feed source for the production of livestock products such as milk and meat in the world. Almost a...

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
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 平俊爱张福耀杜志宏程庆军董良利吕鑫郭建文常玉卉邵林生李慧明杨婷婷
Owner SHANXI ACADEMY OF AGRI SCI SORGHUM RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap