Breeding method of high-resistant glutinous sorghum varieties

A technology of glutinous sorghum and varieties, applied in the field of sorghum resistance to diseases and insect pests, can solve the problems of killing natural enemies and pollinators of aphids, destroying the ecosystem, and difficulty in preventing and controlling, so as to increase farmers' income, increase economic benefits, reduce The effect of environmental pollution

Inactive Publication Date: 2017-05-10
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sorghum head smut is the main disease that affects sorghum yield. It is difficult to control this disease with chemical seed dressing, which has aroused great attention of domestic and foreign scholars on screening disease-resistant materials and cultivating disease-resistant varieties.
At present, pesticides are mainly used in production to control diseases and insect pests, but pesticides have defects such as high price, damage to the ecosystem, pollution of the environment, and killing natural enemies and pollinators of aphids. Therefore, cultivating aphid-resistant varieties is an indispensable link in the comprehensive control of aphids , but also one of the important breeding objectives of many crops

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Choose waxy sorghum variety 05318R (P1), sorghum variety Tx2783 (P2) resistant to aphid, sorghum resistant variety Jiliang 2 (P3), and sorghum head smut resistant variety Jin 5-28 (P4) 1. The salt-tolerant sorghum variety K767 (P5) was used as the hybrid parent, and P1 was used as the female parent to make crosses P1 / P2, P1 / P3, P1 / P4, and P1 / P5, and 4 hybrid F 1 , respectively with F 1 -P12, F 1 -P13, F 1 -P14, F 1 -P15 means;

[0022] (2) planting F 1 -P12, F 1 -P13, F 1 -P14, F 1 -10 plants of each of P15 were bagged and self-crossed at the flowering stage to obtain F 2 Generation Seed F 2 -P12, F 2 -P13, F 2 -P14, F 2 -P15;

[0023] (3) Plant F separately 2Plant 120 plants for each combination, and carry out resistance identification. Each combination only identifies the species of diseases, insect pests or adversity resistant to its corresponding resistant parent. 20 individual plants were bagged and self-bred, and the individual plants were numbe...

Embodiment 2

[0035] (1) Choose waxy sorghum variety 05318R (P1), sorghum variety Tx2783 (P2) resistant to aphid aphid, Jiliang 2 (P3) resistant to sorghum aphid, Tiehui 157 (P4) resistant to sorghum head smut, The salt-tolerant sorghum variety K767 (P5) was used as the hybrid parent, and P1 was used as the female parent to cross P1 / P2, P1 / P3, P1 / P4, and P1 / P5, and 4 hybrid F 1 , respectively with F 1 -P12, F 1 -P13, F 1 -P14, F 1 -P15 means;

[0036] (2) planting F 1 -P12, F 1 -P13, F 1 -P14, F 1 -10 plants of each of P15 were bagged and self-crossed at the flowering stage to obtain F 2 Generation Seed F 2 -P12, F 2 -P13, F 2 -P14, F 2 -P15;

[0037] (3) Plant F separately 2 Plant 150 plants for each combination, and carry out resistance identification. Each combination only identifies the species of diseases, insect pests or adversity resistant to its corresponding resistant parent. 20 individual plants were bagged and self-bred, and the individual plants were numbered and ...

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Abstract

The invention discloses a breeding method of high-resistant glutinous sorghum varieties, and belongs to the technical field of disease-insect-resistant breeding of sorghum. The method includes the steps: taking high-yield and high-quality glutinous sorghum varieties, high-resistant schizaphis graminum, melanaphis sacchari, head smut sorghum varieties and saline-alkaline-tolerant sorghum varieties as parents; hybridizing, and multiple crossing and polymerizing; performing multi-generation resistance identification and glutinous screening; breeding to obtain the sorghum varieties which can simultaneously resist three diseases and insect pests and is tolerant in salt, good in waxiness and excellent in agriculture and yield. The varieties can greatly improve glutinous sorghum resistance on schizaphis graminum, melanaphis sacchari, head smut diseases and salt damage, usage amount of pesticides is reduced, yield is improved, environmental pollution is reduced, and farmer income is increased.

Description

technical field [0001] The invention specifically relates to a method for breeding high-resistant glutinous sorghum varieties, and belongs to the technical field of sorghum disease-resistant and pest-resistant breeding. Background technique [0002] Sorghum is one of the most important food, feed, brewing and energy crops in the world. In terms of annual production, sorghum is the fifth largest cereal crop after corn, wheat, rice and barley. Waxy sorghum is the main raw material for brewing traditional Maotai-flavored and Luzhou-flavored wines in my country. Famous liquors such as Maotai, Wuliangye, and Luzhou Laojiao in China are all brewed with glutinous sorghum as the main raw material. Aged mature vinegar, the taste of the product is better than that of ordinary japonica sorghum. At present, glutinous sorghum is mainly planted in the main sorghum-producing areas in the south of my country, such as Sichuan and Guizhou. The production capacity of glutinous sorghum cannot m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 章清杞陈幼玉杨帆
Owner FUJIAN AGRI & FORESTRY UNIV
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