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A kind of breeding method of three-line sterile line of upland rice

A three-line male sterile line and feeding technology, which is applied in the breeding field of three-line male sterile line of upland rice for feeding, can solve the problems of increased difficulty in breeding work, insufficient breeding research, late feed rice research work, etc., to achieve The effects of saving rice planting water, making full use of rice straw resources, and increasing economic income

Inactive Publication Date: 2017-09-26
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 research work on feed rice, breeding research is not carried out enough, and there is a lack of theoretical guidance in breeding, which increases the difficulty of breeding.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Parent selection: the forage rice variety "Jinzao 47" with high yield, brown rice crude protein content greater than 12%, and brown rice yield greater than 80% was selected as the basic parent (P), and the grain-stalk dual-purpose rice variety "Dongnan 201" ( P1), the high-yield and stress-resistant upland rice variety "Huhan 3" (P2) was used as the general parent, and the three-line maintainer "Longtepu B" (R) was used as the recurrent parent;

[0031] (2) Planting and selection of hybrid offspring:

[0032] a. Plant the parents P, P1, P2 and R respectively, and make crosses P×P1→F at the flowering stage 1-1 , P×P2→F 1-2 , R×P→F 1-3 ; Separately plant 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 F 1-3 ×P, get backcross F 1 Generation BF 1-1 , BF 1-2 and BF 1-3 ;

[0033] b. Plant BF separately 1-1 , BF 1-2 and BF 1-3 , as hybrid BF at flowering stage 1-1 ×BF 1-2 →BF 1-12 , BF 1-3 Harve...

Embodiment 2

[0042] (1) Parent selection: select the forage rice variety "Xiangzaoxian 24" with high yield, brown rice crude protein content greater than 12%, and brown rice yield greater than 80% as the basic parent (P), and the grain-stalk dual-purpose rice variety "Dongnan 201" "(P1), the high-yielding and stress-resistant upland rice variety "Linhan 1" (P2) was used as the general parent, and the three-line maintainer "Hua 2B" (R) was used as the recurrent parent;

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

[0044] a. Plant the parents P, P1, P2 and R respectively, and make crosses P×P1→F at the flowering stage 1-1 , P×P2→F 1-2 , R×P→F 1-3 ; Separately plant 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 F 1-3 ×P, get backcross F 1 Generation BF 1-1 , BF 1-2 and BF 1-3 ;

[0045] b. Plant BF separately 1-1 , BF 1-2 and BF 1-3 , as hybrid BF at flowering stage 1-1 ×BF 1-2 → BF 1-12 , BF 1-3 Harv...

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Abstract

The invention discloses a breeding method of three cytoplasmic male sterility lines of forage-use upland rice and belongs to the technical field of special rice breeding.The breeding method is characterized in that the forage rice varieties with high yield and high crude protein content are used as the basic parents, grain-straw dual-purpose rice varieties whose straw is suitable for being used as forage and upland rice varieties with high yield and high stress resistance are used as the common parents, three maintainer lines are used as the recurrent parents, the three cytoplasmic male sterility lines, which can be cultivated in a dry farming manner and are high in yield and high in nutrition, of grain-straw dual-purpose mixed forage rice are bred through scientific hybridization matching, anther culture and target trait screening, and the cytoplasmic male sterility lines can be matched with same-type maintainer lines to breed grain-straw dual-purpose mixed forage rice varieties which are high in yield and high in nutrition.The breeding method is scientific and efficient, easy to operate, and significant to the breeding of hybrid forage-use upland rice varieties.

Description

technical field [0001] The invention belongs to the technical field of special rice breeding, and in particular relates to a method for breeding a three-line sterile line of upland rice for forage. Background technique [0002] Feed rice refers to the use of optimized cultivation on the basis of suitable growth period and strong resistance, which can achieve high yield (more than 550 kg per 667 square meters), high protein content, high roughness rate (not less than 80%) and suitable for Rice varieties for feeding. "High-protein feed rice" requires that the crude protein content of brown rice is greater than or equal to 12%. The breeding and promotion of "high-protein feed rice" will not only alleviate the problem of early indica rice that is difficult to sell due to poor taste, but also realize the use of feed rice in southern regions. The idea of ​​brown rice replacing feed corn. Pigs fed with feed rice have improved disease resistance and good meat taste, and the feedin...

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 章清杞陈幼玉王和寿郑长林朱海彬
Owner FUJIAN AGRI & FORESTRY UNIV