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Breeding method of a kind of silage upland rice variety

A technology for silage and fodder rice, applied in the field of special rice breeding, can solve the problems of insufficient research on breeding, increased difficulty in breeding work, lack of theoretical guidance, etc. The effect of resources

Inactive Publication Date: 2017-09-15
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the late start of the research work on feed rice, the breeding research is not sufficient, and the lack of theoretical guidance in the breeding has increased the difficulty of the breeding work.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Parent selection: the high-yield feed rice variety "Xiangzaoxian 24" was selected as the basic parent (P), the crisp-stem rice variety "Zhongcui B" (P1), and the high-yield and stress-resistant upland rice variety "Upland Rice 906" (P2), the rice variety "Dongnan 201" (P3), used as a common parent;

[0030] (2) Planting and selection of hybrid offspring:

[0031] a. Plant parents P, P1, P2, and P3, and cross P×P1 at the flowering stage to get F 1-1 , P×P2 gets F 1-2 , P×P3 get F 1-3 ; planting hybrid F 1 Generation F 1-1 , F 1-2 , F 1-3 Cross P×F with parent P at flowering stage 1-1 , P×F 1-2 and P×F 1-3 , have to cross F 1 Generation BF 1-1 , BF 1-2 and BF 1-3 ;

[0032] b. Plant BF 1-1 , BF 1-2 , as hybrid BF at flowering stage 1-1 ×BF 1-2 get BF 1-12 ;plant BF 1-12 , BF 1-3 , as hybrid BF at flowering stage 1-12 ×BF 1-3 get BF 1-123 ;

[0033] c. Plant BF 1-123， After maturity, a single plant can be harvested to get BF 2-123 , thinly so...

Embodiment 2

[0042] (1) Parent selection: the high-yield feed rice variety "Xiangzaoxian 32" was selected as the basic parent (P), the crisp-stem rice variety "Zhongcui B" (P1), the high-yield and stress-resistant upland rice variety "Zhonghan 3" "" (P2), and the rice variety "Dongnan 202" (P3), which is used as a general parent;

[0043] (2) Planting and selection of hybrid offspring:

[0044] a. Plant parents P, P1, P2, and P3, and cross P×P1 at the flowering stage to get F 1-1 , P×P2 gets F 1-2 , P×P3 get F 1-3 ; planting hybrid F 1 Generation F 1-1 , F 1-2 , F 1-3 Cross P×F with parent P at flowering stage 1-1 , P×F 1-2 and P×F 1-3 , have to cross F 1 Generation BF 1-1 , BF 1-2 and BF 1-3 ;

[0045] b. Plant BF 1-1 , BF 1-2 , as hybrid BF at flowering stage 1-1 ×BF 1-2 get BF 1-12 ;plant BF 1-12 , BF 1-3 , as hybrid BF at flowering stage 1-12 ×BF 1-3 get BF 1-123 ;

[0046] c. Plant BF 1-123， After maturity, a single plant can be harvested to get BF 2-123 , t...

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Abstract

The invention discloses a method for breeding a silage upland rice variety and belongs to the technical field of breeding of special rice.A high-yield forage rice variety is used as a basic parent, brittle-culm rice variety with straw useful as forage, grain-stalk dual-use rice variety and high-yield upland rice variety are used as common parents, and the upland rice variety that is suitable for dry farming cultivation and high in yield and nutrition with brittle culms and grain useful as forage and culms useful as silage can be bred through scientific hybrid matching and target character screening.The method is scientific and efficient, is easy to perform and is significant to breeding of forage upland rice varieties.

Description

technical field [0001] The invention specifically relates to a method for breeding upland rice varieties for silage, and belongs to the technical field of special rice breeding. Background technique [0002] The feeding value of rice straw is increasingly valued by people, and it is one of the important ways to improve the comprehensive economic benefits of rice. Regarding the feeding of straw, China has used straw to feed ruminants such as cattle for a long time, and some researchers have used methods such as physical crushing, chemical decomposition, and microbial fermentation to treat straw in order to improve its feeding value, but the cost is too high , complex operation and other reasons have not been widely used. The China Rice Research Institute used radiation mutagenesis technology to obtain rice brittle stalk mutants, and bred Nendao 1, a conventional rice line with relatively low crude fiber content. The crude protein content increased by 60%, and the crude fat c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02A01H1/04A01G16/00A01G22/22
CPCA01G22/22A01H1/02A01H1/04
Inventor 章清杞陈幼玉李晓燕张云燕施晓棠李美德
Owner FUJIAN AGRI & FORESTRY UNIV
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