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Breeding method of multi-rowed hybrid barley

A technology of barley and barley, applied in the direction of botany equipment and methods, application, plant genetic improvement, etc., to achieve the effects of high straw yield, obvious heterosis, and high grain yield

Inactive Publication Date: 2021-02-19
YANCHENG TEACHERS UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Hybrid barley has greater heterosis, not only high grain yield, but also high biological yield. This is a better way for the production of forage barley. Through the use of barley heterosis, greater forage barley production can be achieved , for the breeding of hybrid barley, there are currently two-row barley methods and reports, but for the breeding and application of multi-row hybrid barley, there is no report in China

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  • Breeding method of multi-rowed hybrid barley

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Embodiment Construction

[0014] 1. The breeding method steps of multi-row hybrid barley are as follows:

[0015] (1) Matching group: use Yuanmai CMS line "Minxingmai No. 4" as the female parent, and multi-row barley 19-125 as the male parent for hybridization to produce hybrid F0, which can produce multi-row hybrid barley 19W25, the specific steps are based on figure 1 .

[0016] (2) Seed production: in the field, the row spacing is about 30 cm, and multi-row barley 19-125 is planted in one row as the male parent, and the male sterile line "Minxingmai No. 4" is planted in three rows as the female parent, that is, the male parent. The ratio of the parent to the female parent is 1:3. When sowing, the male parent is sown first and then covered with soil. There should be no dew seeds to prevent the male parent from being mixed with the female parent, and then sow the female parent. The sowing density of the male parent is about 4000 plants / 667 square meters, the sowing density of the female parent is a...

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Abstract

The invention provides a breeding method of multi-rowed hybrid barley. The method comprises the following steps that by using 'Mingxing wheat No.4' as a female parent and multi-rowed barley 19-125 asa male parent, a male parent and female parent matching crossbreeding combination is planted in autumn of the first year, and current-generation naked barley hybrid seeds F0 are prepared; in a seed preparation field, the male parent is sown and covered with soil, and then the female parent is sown; in the heading period of the male parent and the female parent and before glume opening and bloomingof the male parent and the female parent, natural hybrid plants such as two-rowed barley are pulled out for impurity removal, and during glume opening and blooming of the male parent and the female parent, pollen is manually driven four times every day; and the male parent and the female parent are respectively harvested in summer of the second year, the male parent is manually harvested first, then the female parent is harvested, seeds produced by the female parent are multi-edge hybrid barley seeds, hybrid vigour is achieved, the bred barley are higher in seed yield and straw yield, and obvious yield increase is achieved.

Description

technical field [0001] The invention relates to a method for breeding hybrid barley, in particular to a method for breeding multi-row hybrid barley, and belongs to the technical field of crop breeding. Background technique [0002] Hybrid barley has greater heterosis, not only high grain yield, but also high biological yield. This is a better way for the production of forage barley. Through the use of barley heterosis, greater forage barley production can be achieved For the breeding of hybrid barley, there are currently two-row barley methods and reports, but for the breeding and application of multi-row hybrid barley, there is no report in China. Contents of the invention [0003] The object of the present invention is to provide a multi-row hybrid barley breeding method, the bred multi-row hybrid barley variety not only has high grain yield, but also has high straw yield. [0004] The technical problem to be solved by the present invention is achieved through the follo...

Claims

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Application Information

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IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 张明生杨瑞平唐伯平李豫婷陈露露王伟中
Owner YANCHENG TEACHERS UNIV
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