High-yield lodging-resistant wheat breeding method

A lodging-resistant and wheat-resistant technology, applied in horticultural methods, botany equipment and methods, plant regeneration, etc., can solve the problems of complex metabolic network, increased difficulty, and high difficulty, so as to improve screening efficiency, increase induction ratio, and accelerate The effect of breeding speed

Pending Publication Date: 2021-12-24
南阳市农业科学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since wheat is hexaploid, it is significantly more difficult to keep the relevant genes on the six sets of chromosomes coordinated and consistent, and the metabolic network for trait improvement is more complicated.
It is also for this reason that it is more difficult for wheat to create a functioning and stable genetic male sterility and restoration system to realize the utilization of heterosis

Method used

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  • High-yield lodging-resistant wheat breeding method
  • High-yield lodging-resistant wheat breeding method
  • High-yield lodging-resistant wheat breeding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The present embodiment provides a high-yield and lodging-resistant wheat breeding method, comprising the following steps:

[0054] S1, hybridize the wheat variety with resistance to sheath blight planted in the main season and Zhengmai 9023 to observe the growth and traits of the plants with the naked eye, and select one of which shows that the plants are neat in the middle and late stages, no sheath blight is found, medium and short stalks, and lodging resistance , precocious and mature live smooth plants are threshed by a threshing device, and the seeds on the second seed selection plate in the threshing device are designated as F1 hybrids;

[0055] S2, plant the F1 hybrids in the season, observe the growth of the plants and their traits with the naked eye, select the plants that are robust and resistant to lodging, and take the anthers of the main panicle for anther induction culture to obtain anther callus, and carry out Differentiation culture to obtain haploid pla...

Embodiment 2

[0068] This example provides a high-yield and lodging-resistant wheat breeding method. In order to obtain high-quality seeds by seed screening, this embodiment, on the basis of embodiment 1, uses a threshing device for threshing when performing two threshing treatments. The threshing device of the present embodiment includes a casing 1, a casing One side of the body 1 is provided with a grain inlet 11, and the wheat is fixed at the grain inlet 11 through the fixing mechanism 2 provided on the side away from the grain inlet 11 of the box body 1, and the wheat ears are located in the threshing cylinder 13, and the The motor 3 drives the rotating rod 15 to rotate, and the rotating rod 15 drives the shearing member 16 to rotate. The shearing member 16 separates the seeds from the ears of wheat, and makes the seeds fall on the wall of the threshing cylinder 13, and the seeds will be released from the threshing cylinder 13. The filter hole 14 provided on the wall breaks away from th...

Embodiment 3

[0070] This example provides a high-yield and lodging-resistant wheat breeding method. In order to facilitate the fixing of wheat, avoid manpower to hold the wheat, and improve the safety of threshing, this embodiment is based on Embodiment 2, and the fixing mechanism 2 specifically includes a support plate 21, a pressing plate 23, a pressure spring 24 and a limit screw. 25. The support plate 21 is arranged at the bottom of the threshing port, and its two sides are respectively vertically provided with guide rods 22, and the pressing plate 23 passes through the guide rod 22 and is arranged opposite to the support plate 21, so that a formation is formed between the support plate 21 and the pressing plate 23. Opposite clamping surfaces that clamp the wheat. The pressure spring 24 is sleeved on the guide rod 22, and is located between the top support plate 21 of the pressing plate 23 and the threshing port, and its two ends are fixedly connected with the top of the pressing plat...

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Abstract

The invention belongs to the technical field of agricultural breeding, and discloses a high-yield lodging-resistant wheat breeding method which comprises the following steps: S1, hybridizing a wheat variety with banded sclerotial blight resistance and Zhengmai 9023, selecting plants with good performance, and threshing the plants to obtain F1 hybrids; S2, planting the F1 hybrids in the right season, selecting main panicle anthers of robust and lodging-resistant plants to perform anther induction culture, and performing differentiation culture on the obtained anther callus to obtain haploid plants; S3, after subculture root strengthening culture is conducted on the haploid plants, transplanting the haploid plants to a greenhouse for culture, conducting single-plant seed harvesting, conducting field sowing on the seeds, selecting plants with good performance to be subjected to threshing treatment through a threshing device, and determining seeds on a second seed selection plate in the threshing device to be high-yield lodging-resistant wheat. The banded sclerotial blight-resistant breeding speed of the wheat is greatly increased, the banded sclerotial blight-resistant breeding period is remarkably shortened, and the important industrial value is achieved.

Description

technical field [0001] The invention relates to the technical field of agricultural breeding, in particular to a high-yield and lodging-resistant wheat breeding method. Background technique [0002] Wheat is the food crop with the widest distribution area, the highest total output and the largest trade volume in the world. At the same time, wheat is one of the main food crops in my country. Its output is second only to rice. It plays an important role in the national economy. How to increase wheat production has been It is a research hotspot, among which, part of the reason that affects wheat yield is caused by wheat falling down, and another part is caused by wheat infection. [0003] There are many reasons for wheat lodging, mainly including climate factors, variety factors, soil preparation and planting factors, and cultivation management factors. Tall and thin stalk varieties are prone to spot lodging in heavy rainfall and windy climates. [0004] Wheat sheath blight, al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H4/00A01F7/06A01F12/44
CPCA01H4/008A01F7/06A01F12/446
Inventor 李金秀王震张彬李金榜石利朝吴瑞阁栗凌云韦保旭徐海保宋祎莹张敏
Owner 南阳市农业科学院
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