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Rules for the investigation and forecast of wheat powdery mildew[Blumeria graminis(DC.) Speer]
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Basic data
| Standard ID | NY/T 613-2002 (NY/T613-2002) |
| Description (Translated English) | Rules for the investigation and forecast of wheat powdery mildew[Blumeria graminis(DC.) Speer] |
| Sector / Industry | Agriculture Industry Standard (Recommended) |
| Classification of Chinese Standard | B16 |
| Classification of International Standard | 65.020 |
| Word Count Estimation | 9,921 |
| Date of Issue | 2002-12-30 |
| Date of Implementation | 2003-03-01 |
| Summary | This standard specifies the wheat powdery mildew disease severity documented projects and grading indicators system disease surveys and census methodology, forecasting data collection, reporting and aggregation methods. This standard applies to the implementation of investigation and forecast of wheat powdery mildew. |
NY/T 613-2002: Rules for the investigation and forecast of wheat powdery mildew[Blumeria graminis(DC.) Speer]
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Rules for the investigation and forecast of wheat powdery mildew[Blumeria graminis(DC.) Speer]
ICS 65.020
B16
People's Republic of China Agricultural Industry Standard
Wheat powdery mildew survey report survey specification
Released on December 12,.2002
2003-03-01 implementation
Published by the Ministry of Agriculture
Foreword
Appendix A and Appendix B of this standard are normative appendices.
This standard was proposed by the Plantation Management Department of the Ministry of Agriculture.
This standard was drafted. National Agricultural Technology Extension Service Center.
The main drafters of this standard. Liu Wancai, Jiang Yuying, Zhang Yuejin, Yang Wanhai, Zhang Guoyan.
Wheat powdery mildew survey report survey specification
1 Scope
This standard specifies the project records and grading indicators for the incidence of wheat powdery mildew, disease system investigation and census methods, and measurement data collection.
Set, report, and summary methods.
This standard is applicable to the implementation of the survey of wheat powdery mildew.
2 Normative references
The terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all
Modifications (not including errata content) or revisions do not apply to this standard, however, parties to agreements based on this standard are encouraged to study
Is it possible to use the latest version of these files? For undated references, the latest edition applies to this standard.
GB/T 15795 Wheat stripe rust survey report survey specification
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1
Systematic investigation
In order to understand the dynamics of the occurrence and growth of pests and diseases in a region, a survey of fixed-point, timing, and fixed methods was conducted.
3.2
Daejeon census
In order to understand the overall occurrence of pests and diseases in a region, a multi-point survey was conducted on a larger scale.
3.3
Recover damages
The yield loss of the crops recovered by controlling the pests and larvae, that is, the increased yield of the control area than the control area.
3.4
Actual loss
The yield loss caused by the remaining pests and diseases of the crops after the crops have been controlled by the pests and diseases.
3.5
Diseased leaf rate
The number of infected leaves was investigated as a percentage of the total number of leaves investigated.
3.6
Severity
The ratio of the leaf area covered by the pathological mycelium to the total area of the leaf on the diseased leaf, expressed by the classification method, is set to 8 grades, respectively, using 1%, 5%,
10%, 20%, 40%, 60%, 80%, 100%. For the condition between the grades, take the close value, although the disease has occurred but the severity is low
At 1%, record at 1%. For group leaves, the average severity of diseased leaves should be calculated according to formula (1). The use of average severity can be used during the initial period of the disease
Strict counting calculation; when the disease is in the probable period and the number of points to be investigated is large, the average severity of a point is given according to the visual estimate.
D=
L × 100
(1)
...
