GB/T 19557.2-2017Guidelines for the conduct of tests for distinctness, uniformity and stability—Wheat (Triticum aestivum L.) (English PDF)

Foreword

This section drafted in accordance with GB/T 1.1-2009 given rules.

This Part replaces GB/T 19557.2-2004 "Plant Variety Specificity, Consistency and Stability Test Guide Common Wheat." This section compared with GB/T 19557.2-2004, in addition to editorial changes outside the main technical changes are as follows.

--- Modify the standard name;

--- Modify the normative references (see Chapter 2, see the 2004 edition of Chapter 2);

--- Revised requirements for propagation material (see 5.3, see Chapter 4 of the 2004 edition);

--- Modify the experimental design (see 6.3.1, see 2004 version 5.3);

--- Modify the number of observations (see 6.4.3);

--- Revised consistency criteria (see 7.3, see 2004 version 6.3);

--- Modify the status and order of expression of some traits in Appendix A (see A.1 and A.2, see A.1 and A.2 of the 2004 edition);

--- Modify the type of appendix C (see Appendix C three, see the 2004 edition of Appendix C five).

1 Scope

This section GB/T 19557 gives the general wheat (Triticum aestivum L.) species specificity, consistency and stability test The technical guidelines and the results of the decision.

This section applies to common wheat varieties specificity, consistency and stability testing and determination of the results.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 3543.3 Crop seed testing procedures Clarity analysis

GB/T 3543.4 crop seed testing procedures sprout test

GB/T 3543.5 Crop seed testing procedures authenticity and species purity identification

GB/T 3543.6 Crop seed testing procedures moisture content

GB/T 5498 grain and oil test bulk density determination

GB/T 5519 Determination of grain weight and grain weight

GB/T 19557.1 New Plant Species Specificity, Consistency and Stability Test Guidelines General

NY/T 613 Wheat Powdery Mildew Measured Report Survey Code

NY/T 1443.1 Technical Specifications for Evaluation of Wheat Resistance to Pests and Diseases Part 1: Technical Specifications for Wheat Stripe Rust Resistance Evaluation

NY/T 1443.2 Technical Specifications for Evaluation of Wheat Resistance to Pests and Diseases Part 2: Technical Specifications for Wheat Leaf Rust Resistance Evaluation

NY/T 1443.4 Technical Specifications for Evaluation of Wheat Resistance to Pests and Diseases Part 4: Technical Specifications for Evaluation of Wheat Resistance to Fusarium Head Blight

NY/T 2644 Common winter wheat spring identification of technical specifications

TG/3/11 Plant Variety Specificity, Consistency and Stability Test Guidelines Wheat

3 Terms and definitions

GB/T 19557.1 defined and the following terms and definitions apply to this document.