GB/T 19557.31-2018Guidelines for the conduct of tests for distinctness, uniformity and stability—Barley (Hordeum vulgare L.) (English PDF)
植物品种特异性、一致性和稳定性测试指南 大麦
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
May 14, 2018
Implementation date
December 1, 2018
Scope
GB/T 19557.31-2018 is the English-translated version of 植物品种特异性、一致性和稳定性测试指南 大麦.
GB/T 19557.31-2018 is the Chinese guideline for testing distinctness, uniformity and stability (DUS) of barley (Hordeum vulgare L.) varieties. It gives the technical points of the test and the general principles for deciding the results.
The document follows the general DUS guideline GB/T 19557.1 and refers to GB 4404.1 for the quality of cereal seed. It defines the four ways of recording a trait - group measurement, individual measurement, group visual observation and individual visual observation - and the symbols used in the trait tables, such as MG, MS, QL, QN and PQ.
Its contents also cover the propagation material, the test method, the grouping traits, a barley trait table with its explanations and the technical questionnaire that applicants fill in. It was issued on 14 May 2018 and has applied since 1 December 2018.
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Document preview — GB/T 19557.31-2018
National Standard of the People's Republic of China
- ICS
- 65.020.20
- Classification
- B 05
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 symbol
- 5 Conditions to be met for reproductive material
- 6 Test Method
- 7 Determination of specificity, consistency and stability results
- 8 traits table
- 9 grouping traits
- 10 Technical Questionnaire
- Appendix A (Normative Appendix) Barley Properties Table
- Appendix B (normative appendix) Interpretation of barley traits table
- Appendix C (Normative Appendix) Barley Technical Questionnaire
Foreword
GB/T 19557 "Guidelines for Testing Plant Variety Specificity, Consistency and Stability" is divided into the following sections.
---GB/T 19557.1 General Guidelines for the Testing of Plant Variety Specificity, Consistency and Stability;
---GB/T 19557.2 Plant Variety Specificity, Consistency and Stability Test Guide for Common Wheat;
---GB/T 19557.3 Test Guide for Specific Variety, Consistency and Stability of New Varieties of Plants;
---GB/T 19557.4 Plant Variety Specificity, Consistency and Stability Test Guide Soy;
---GB/T 19557.5 Plant Variety Specificity, Consistency and Stability Test Guide Chinese Cabbage;
---GB/T 19557.6 Test Guide for Plant Variety Specificity, Consistency and Stability ramie;
---GB/T 19557.7 Test Guide for Plant Variety Specificity, Consistency and Stability;
---GB/T 19557.8 New plant variety specificity, consistency and stability test guide Li;
---GB/T 19557.9 Plant Variety Specificity, Consistency and Stability Test Guide Mustard;
---GB/T 19557.10 Plant Variety Specificity, Consistency and Stability Test Guide Lily;
---GB/T 19557.11 Plant Variety Specificity, Consistency and Stability Test Guide Kiwifruit;
---GB/T 19557.12 Plant Variety Specificity, Consistency and Stability Test Guide Garlic;
---GB/T 19557.13 Test Guide for Plant Variety Specificity, Consistency and Stability;
---GB/T 19557.14 Test Guide for Plant Variety Specificity, Consistency and Stability Brassica napus L.;
---GB/T 19557.15 Guidelines for the testing of plant species specificity, consistency and stability;
---GB/T 19557.16 Test Guide for Plant Variety Specificity, Consistency and Stability;
---GB/T 19557.17 Plant Variety Specificity, Consistency and Stability Test Guide Pepper;
---GB/T 19557.18 Test Guide for Plant Variety Specificity, Consistency and Stability;
---GB/T 19557.19 Plant Variety Specificity, Consistency and Stability Test Guide Chrysanthemum;
---GB/T 19557.20 Test Guide for Plant Variety Specificity, Consistency and Stability Eggplant;
---GB/T 19557.21 Plant Variety Specificity, Consistency and Stability Test Guide Melon;
---GB/T 19557.22 Plant Variety Specificity, Consistency and Stability Test Guide peas;
---GB/T 19557.23 Plant Variety Specificity, Consistency and Stability Test Guide Carnation;
---GB/T 19557.24 Test Guide for Plant Variety Specificity, Consistency and Stability;
---GB/T 19557.25 Plant Variety Specificity, Consistency and Stability Test Guide Cucumber;
---GB/T 19557.26 Plant Variety Specificity, Consistency and Stability Test Guide Apple;
---GB/T 19557.27 Plant Variety Specificity, Consistency and Stability Test Guide Watermelon;
---GB/T 19557.28 Test Guide for Plant Variety Specificity, Consistency and Stability;
---GB/T 19557.29 Plant Variety Specificity, Consistency and Stability Test Guide Cabbage;
---GB/T 19557.30 Plant Variety Specificity, Consistency and Stability Test Guide Pear;
---GB/T 19557.31 Plant Variety Specificity, Consistency and Stability Test Guide Barley;
---GB/T 19557.32 Plant Variety Specificity, Consistency and Stability Test Guide Sweet Potato;
---GB/T 19557.33 Plant Variety Specificity, Consistency and Stability Test Guide Cauliflower.
This part is part 31 of GB/T 19557.
This section is drafted in accordance with the rules given in GB/T 1.1-2009.
1 Scope
This part of GB/T 19557 gives the techniques for testing the specificity, consistency and stability of barley (Hordeum vulgare L.). General principles for the determination of the points and outcomes.
This section gives the barley variety specificity, consistency and stability tests and results.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.
GB 4404.1 Grain crop seeds - Part 1. Cereals
GB/T 19557.1 General guidelines for testing specificity, consistency and stability of plants
3 Terms and definitions
The following terms and definitions as defined in GB/T 19557.1 apply to this document.
3.1 Group measurement
An organ or part of a batch of plants or plants is measured to obtain a population record.
3.2 Individual measurement
An individual organ or part of a plant or plant is measured one by one, and a set of individual records is obtained.
3.3 Group visual observation
Visual inspection of an individual organ or part of a plant or plant to obtain a population record.
3.4 Individual visual inspection
An individual organ or part of a plant or plant is visually inspected one by one to obtain a set of individual records.
4 Symbol
The following symbols apply to this document.
MG. Group measurement.
MS. Individual measurement.
PQ. False quality traits.
QL. Quality traits.
QN. Quantitative traits.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 24 pages — is available in the English PDF.
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Related Standards
GB 4404.1-2024 — Seed of food crops - Part 1: Cereals
GB/T 19557.1-2004 — General directives for the conduct of tests of distinctness，uniformity and stability for new varietiesof plants
GB/T 19557.1-2026 — Guidelines for the tests of distinctness, uniformity and stability for plant varieties - General
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