Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for breeding rice restorer line with resistance to Chilo suppressalis, Scirpophaga incertulas and Cnaphalocrocis medinalis

A technology of rice leaf roller and rice stem borer, which is applied in the field of breeding, can solve the problems of unusable production, poor reliability of identification results of natural induction in the field, lack of restorer lines resistant to various rice pests, etc., and achieve the effect of improving accuracy

Inactive Publication Date: 2017-01-04
RICE & SORGHUM INST SICHUAN ACAD OF AGRI SCI
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the current situation of lack of restorer lines resistant to various rice pests due to the fact that the Bt gene-transformed restorer lines cannot be used for production at present, and the problem of poor reliability of the identification results of natural induction in the field, the present invention provides a kind of selective breeding and anti-Bt The method of the rice restorer line of the rice borer, the rice borer and the rice leaf roller

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. In 2010, Luhui 317 was used as the female parent, and Chenghui 727, a recovery material with excellent agronomic properties, was used as the male parent to obtain hybrid seeds;

[0025] 2. In 2011, planting hybrid seeds got F 1 generation, remove false hybrids in the field, and harvest F 2 generation;

[0026] 3. In the spring of 2012, plant F in southern Hainan 2 generation, sowing in spring March 20-25, F 2 Rice Lepidoptera pests are not controlled in the Honda period, each F 2 More than 2,000 plants were planted on behalf of the generation, and in F 2 Plant 5 rows of insect-susceptible controls around the generation, use single plants, and select single plants resistant to rice stem borer, rice stem borer and rice leaf roller at the mature stage to harvest seeds, and obtain F 3 substitute seeds;

[0027] 4. In the autumn of 2012, F was planted in southern Hainan 3 Generation, sowing in the autumn of that year from August 20 to 25, F 3 Rice Lepidoptera pest...

Embodiment 2

[0032] 1. In 2010, a recovery material with excellent agronomic properties (Chenghui 727) was used as the female parent, and Luhui 317 was used as the male parent to obtain hybrid seeds;

[0033] 2. In 2011, planting hybrid seeds got F 1 generation, remove false hybrids in the field, and harvest F 2 generation;

[0034] 3. In the spring of 2012, plant F in southern Hainan 2 generation, sowing in spring March 20-25, F 2 Rice Lepidoptera pests are not controlled in the Honda period, each F 2 More than 2,000 plants were planted on behalf of the generation, and in F 2 Plant 5 rows of insect-susceptible controls around the generation, use single plants, and select single plants resistant to rice stem borer, rice stem borer and rice leaf roller at the mature stage to harvest seeds, and obtain F 3 substitute seeds;

[0035] 4. In the autumn of 2012, F was planted in southern Hainan 3 Generation, sowing in the autumn of that year from August 20 to 25, F 3 Rice Lepidoptera pest...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for breeding rice restorer line with resistance to Chilo suppressalis, Scirpophaga incertulas and Cnaphalocrocis medinalis. The method comprises the following steps: Huhui 317 containing insect-resistant genes with resistance to Chilo suppressalis, Scirpophaga incertulas and Cnaphalocrocis medinalis is taken as a parent and hybridizes with a three-line restorer line I with excellent agronomic characters; a hybrid is taken as a breeding material and subjected to multi-generation self-cross selective breeding with resistance to Chilo suppressalis, Scirpophaga incertulas and Cnaphalocrocis medinalis as the standard under the condition of high incidence of stem borers, a strain with strong restoring capacity is selected through testcross, and the restorer line R with resistance to Chilo suppressalis, Scirpophaga incertulas and Cnaphalocrocis medinalis is obtained. The method has the advantages that Lepidoptera-pest-resistant genes of the rice are transferred to the excellent genetic background of the restorer line with a crossbreeding technology, a field natural insect luring identification method is improved, and the accuracy of identification results is improved.

Description

technical field [0001] The invention relates to breeding technology, in particular to a method for breeding rice restorer lines that are also resistant to rice stem borer, rice stem borer and rice leaf roller. Background technique [0002] Chilo suppressalis (Walker)), rice borer (Scirpophaga incertulas (Walk)) and rice leaf roller (Cnaphalocrocismedinalis (Guenée)), which belong to Lepidoptera, are three major insect pests that affect the high and stable yield of rice. The main means of controlling these three pests is to use chemical pesticides. With the continuous improvement of people's living standards and the continuous increase of large grain-growing households and family farms in rural areas, the planting area of ​​high-quality rice continues to expand, and the damage caused by major rice pests to high-quality rice is more serious than that of ordinary rice (Peng Chuanhua, 2008). On the one hand, it will lead to the increase of pest resistance and fall into a viciou...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A01H1/02A01H1/04
Inventor 谢戎李永洪王中华刘成元向箭宇
Owner RICE & SORGHUM INST SICHUAN ACAD OF AGRI SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products