CN113317194A

CN113317194A - Breeding method of dwarf barley and large barley

Info

Publication number: CN113317194A
Application number: CN202110527841.8A
Authority: CN
Inventors: 杨瑞平; 张明生; 唐伯平; 辛桂亮; 陈露露; 李豫婷
Original assignee: Yancheng Teachers University
Current assignee: Yancheng Teachers University
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2021-08-31

Abstract

The invention provides a breeding method of dwarf barley, which is characterized in that specific combinations are selected to breed special varieties aiming at the breeding target of the dwarf barley with high yield, and the specific combinations suitable for breeding the dwarf barley are screened out, and the steps are as follows: the method is characterized in that dwarf high-yield barley Su beer No. 6 is used as a female parent, large-grain high-yield barley Shenhai wheat No. 2 is used as a male parent, the dwarf high-yield barley Su beer No. 6 and the large-grain high-yield barley Shenhai wheat No. 2 are subjected to artificial hybridization and matching, the Shenhai wheat No. 2 is used as a recurrent male parent for backcrossing once in the first filial generation, and then stable strains 19-709, 19-709 showing short stalks, large grains and high yield are selected and bred in the later generations. The grains of other dwarf barley varieties are correspondingly reduced, but the ear nodes 19-709 are shorter, the plants are shorter, and the grains are larger. This is different from other dwarf barley varieties. The invention has the advantages and positive effects that: the barley variety bred by the special combination has short panicle node, strong lodging resistance, larger grains and higher yield.

Description

Breeding method of dwarf barley and large barley

Technical Field

The invention relates to a breeding process of barley, in particular to a breeding method of dwarf large-grain barley, which belongs to the technical field of crop breeding and is specially used for producing barley.

Background

The high yield of barley is always the target of barley production, however, the high yield is easy to cause lodging, and the breeding of a new barley variety with dwarf resistance becomes one of the tasks of breeding workers; the size of barley grains is one of the quality indexes of barley, and the breeding of new barley varieties with large grains becomes an important target of seed selection.

Disclosure of Invention

Aiming at the breeding target of the short-stalk large-grain high-yield barley, the invention uses a specific combination to breed a special variety and screens out a specific combination suitable for breeding the short-stalk large-grain barley, and the technical problem to be solved by the invention is realized by the following technical scheme: the method comprises the following steps:

the method is characterized in that dwarf high-yield barley Su beer No. 6 is used as a female parent, large-grain high-yield barley Shenhai wheat No. 2 is used as a male parent, the dwarf high-yield barley Su beer No. 6 and the large-grain high-yield barley Shenhai wheat No. 2 are subjected to artificial hybridization and matching, the Shenhai wheat No. 2 is used as a recurrent male parent for backcrossing once in the first filial generation, and then stable strains 19-709, 19-709 showing short stalks, large grains and high yield are selected and bred in the later generations. The grains of other dwarf barley varieties are correspondingly reduced, but the ear nodes 19-709 are shorter, the plants are shorter, and the grains are larger. This is different from other dwarf barley varieties.

Parent source: su beer No. 6 is a barley variety bred by agricultural scientific research institute in Jiangsu coastal areas; shenhai wheat No. 2 is a barley variety bred in Zhangming and Shanghai farms, and has the advantages of short stalk, large grain and small ear.

Due to the adoption of the technical scheme, the invention has the advantages and positive effects that: the barley variety bred by the special combination has short panicle node, stronger lodging resistance, larger grains and higher yield.

Detailed Description

The invention relates to a method for breeding special varieties by using specific combinations, which aims at the breeding target of short-stalk large-grain high-yield barley and screens out specific combinations suitable for breeding the short-stalk large grains, and the technical problem to be solved by the invention is realized by the following technical scheme: the method comprises the following steps:

the method is characterized in that dwarf high-yield barley Su beer No. 6 is used as a female parent, large-grain high-yield barley Shenhai wheat No. 2 is used as a male parent, the dwarf high-yield barley Su beer No. 6 and the large-grain high-yield barley Shenhai wheat No. 2 are subjected to artificial hybridization and matching, the Shenhai wheat No. 2 is used as a recurrent male parent for backcrossing once in the first filial generation, and then stable strains 19-709, 19-709 showing short stalks, large grains and high yield are selected and bred in the later generations. The grains of other dwarf barley varieties are correspondingly reduced, but the ear nodes 19-709 are shorter, the plants are shorter, and the grains are larger. The invention is different from other dwarf barley varieties, and has the advantages that the barley variety bred by the specific combination has short under-ear nodes, stronger lodging resistance, larger grains and higher yield.

Parent source: su beer No. 6 is a barley variety bred by the institute of agricultural science in Jiangsu coastal areas, is a barley variety protected by the national Ministry of agriculture and protection offices, and has the variety right number: cna20080409. x. Shenhai wheat No. 2 is a barley variety bred by Zhangming and Shanghai farms, has short stalk, large grains and small ear shape, is a barley variety protected by the protection offices of the national Ministry of agriculture, and has the variety right number: CNA 20100583.9.

The breeding process of the 19-709 barley is as follows:

Claims

1. a method for breeding dwarf barley comprises the following steps of breeding a special variety by using a specific combination, and screening the specific combination suitable for breeding dwarf barley aiming at the breeding target of the dwarf barley high-yield barley, wherein the method comprises the following steps:

taking short-stalk high-yield barley Su beer No. 6 as a female parent and large-grain high-yield barley Shenhai wheat No. 2 as a male parent, carrying out artificial hybridization and matching on the two, carrying out backcross once in the first filial generation by taking Shenhai wheat No. 2 as a recurrent male parent, and then selecting and breeding stable strains 19-709 in the later generations, wherein the stable strains 19-709 show short stalks, large grains and high yield;

the seeds of other dwarf barley varieties are correspondingly reduced, but the ear joints 19-709 are shorter, the plants are shorter, the seeds are larger, which is different from other dwarf barley varieties, and the barley variety bred by the specific combination has the advantages of short ear joints, stronger lodging resistance, larger seeds and higher yield.

2. The breeding method of dwarf barley according to claim 1, which is characterized in that: the expression is short stalk, large grain, strong lodging resistance, high yield, parent source: su beer No. 6 is a barley variety protected by the national Ministry of agriculture for variety protection office, and the variety right number: cna20080409.x, shenhaimai No. 2 is a barley variety protected by the national agricultural ministry of species protection office, and the variety right no: CNA 20100583.9.