LY/T 3287-2021Guidelines for the conduct of tests for distinctness, uniformity and stability(DUS)-Wingceltis(Pteroceltis Maxim. ) (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted:

Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents:

1 Scope

This document specifies the specificity, consistency and stability of new plant varieties of the genus Pteroceltis Maxim:

DUS) technical requirements for testing:

This document applies to the testing of all new cultivars of the genus Chrysanthemum:

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document:

GB/T 19557.1 General rules for the specificity, consistency and stability testing of new plant varieties

3 Terms and Definitions

Terms and definitions defined in GB/T 19557.1 apply to this document:

4 DUS test technical requirements

4.1 Test materials

4.1.1 The time, place and quantity and quality of plant material required for testing shall be notified by the approval agency: from a non-test place for the materials submitted by the country or region, the applicant should provide relevant documents such as customs and phytosanitary in accordance with the relevant local regulations on entry, exit and transportation:

4.1.2 The test materials submitted are the plants that are asexually propagated and grow normally for more than one year:

4.1.3 The number of test materials submitted shall not be less than 10 plants:

4.1.4 The test materials should be plants that are free from pests and diseases and grow normally:

4.1.5 Unless the approval authority allows or requires the processing of the test materials, the test materials submitted by the applicant shall not be subject to any influence:

processing of expression: If the material has been processed, details of the processing should be provided:

4.2 Test method

4.2.1 Test period and time in the case of meeting the test conditions, test at least 1 growth cycle:

4.2.2 Test Site

Testing should be performed at a testing site or laboratory designated by the approval agency: