GB/T 45211.2-2025 in English
VALIDTechnical code of practice for evaluation of resistance to diseases and insect pests in wheat—Part 2: Leaf (brown) rust
- Issued on:2025-01-24
- Implemented on:2025-08-01
- File Format:PDF
- Delivery:Via email within 5 business days
$306.00
| Standard No: | GB/T 45211.2-2025 |
| Document status: | VALID |
| Title in English: | Technical code of practice for evaluation of resistance to diseases and insect pests in wheat—Part 2: Leaf (brown) rust |
| Title in Chinese: | 小麦抗病虫性评价技术规程 第2部分：叶锈病 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2025-01-24 |
| Implemented on: | 2025-08-01 |
| ICS Classification: | 65.020.01-Farming and forestry in general |
| Chinese Classification: | B15-Plant protection in general |
| Professional Classification: | GB-National Standard |
| Related Keywords: | wheat leaf rust resistance
wheat leaf rust wheat leaf rust identification procedure insect resistance part insect resistance |
| Related Topics: | Insect resistance
|
《GB/T 45211.2-2025小麦抗病虫性评价技术规程 第2部分：叶锈病》由326（农业农村部）归口，主管部门为农业农村部。
Introduction
National Standard of the People's Republic of China GB/T 45211.2—2025
Technical Procedures for Evaluation of Wheat Disease and Insect Resistance: In-depth Interpretation of Leaf Rust Control Standards
Background and Significance of Standard Formulation
As an important food crop in the world, wheat's disease and insect resistance is directly related to food security and sustainable agricultural development. The formulation of GB/T 45211.2—2025 "Technical Procedures for Evaluation of Wheat Disease and Insect Resistance Part 2: Leaf Rust" fills the gap in my country's systematic identification methods for wheat leaf rust.
Comparative analysis of standard frameworks
| Technical requirements | This standard | International integration | Innovation points |
|---|---|---|---|
| Disease identification methods | Inoculation method, field investigation method | In line with international common methods | Introduction of physiological subspecies identification system |
| Resistance evaluation indicators | Disease index, infection type classification | Use unified quantitative standards | Add description of slow rust characteristics |
| Pathogen treatment specifications | Isolation, propagation and preservation technology | Compliance with plant pathology standards | Optimization of inoculation method efficiency |
Core technology interpretation: wheat leaf rust identification procedure
This standard specifies in detail the technical process for evaluating wheat leaf rust resistance, including:
- Pathogen isolation and identification
- Inoculum preparation method
- Field and seedling resistance identification
Professional terminology analysis and practical application
Infection type
Disease resistance is graded from 0 to 4 based on the characteristics of lesions and fruiting body development. For example, materials with infection type 3 may show slow rust characteristics.
Physiological race
Based on the interaction between pathogens and identified hosts, there are 12 disease resistance gene loci. For example, Lr1, Lr3, etc.
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