LY/T 1868-2025 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
LY/T 1868-2025	RFQ	ASK	3 days	Guidelines for the conduct of tests for distinctnessuniformity and stability of Rose (Rosa L.)	Valid
LY/T 1868-2010	739	Add to Cart	4 days	Guidelines for the conduct of tests for distinctness, uniformity and stability. Rose(Rosa L.)

Basic data

Standard ID: LY/T 1868-2025 (LY/T1868-2025)
Description (Translated English): Guidelines for the conduct of tests for distinctnessuniformity and stability of Rose (Rosa L.)
Sector / Industry: Forestry Industry Standard (Recommended)
Classification of Chinese Standard: B05
Classification of International Standard: 65.020.20
Date of Issue: 2025-07-21
Date of Implementation: 2025-11-01
Older Standard (superseded by this standard): LY/T 1868-2010
Issuing agency(ies): National Forestry and Grassland Administration

LY/T 1868-2010: Guidelines for the conduct of tests for distinctness, uniformity and stability. Rose(Rosa L.)

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Guidelines for the conduct of tests for distinctness, uniformity and stability.Rose(Rosa L.) ICS 65.020 B15 People's Republic of China Forestry Industry Standard New plant variety specificity, consistency, Stability Test Guide Rose Released on.2010-02-09 2010-06-01 implementation State Forestry Administration released

Content

Foreword III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 DUS test technical requirements 1 4.1 Test material 1 4.2 Test Method 1 5 Specificity, consistency and stability evaluation 2 5.1 specificity 2 5.2 Consistency 3 5.3 Stability 3 6 variety group 3 6.1 Variety group description 3 6.2 Grouping Features 3 7 trait characteristics and related symbol description 3 7.1 Feature Type 3 7.2 Expression status and code 3 7.3 Expression Type 3 7.4 Standard Variety 4 7.5 Symbol Description 4 Appendix A (Normative Appendix) Variety traits characteristics 5 Appendix B (informative) Technical Questionnaire 15 Reference 17

Foreword

This standard is based on GB/T 19557.1-2004 "General guidelines for the specificity, consistency and stability of new plant varieties". Appendix A of this standard is a normative appendix, and Appendix B is an informative appendix. This standard is proposed and managed by the State Forestry Administration. This standard is drafted by. Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Office of Plant Variety Protection, State Forestry Administration, Jiangsu Provincial Academy of Forestry. The main drafters of this standard. Ge Hong, Huang Shanwu, Zhou Jianren, Huang Faji, Xu Duyi, Wang Guoliang, Xie Qiulan, Yi East Asia, Wang Qiong, Yang Yulin. New plant variety specificity, consistency, Stability Test Guide Rose

1 Scope

This standard applies to the testing of all new varieties of rose plants.

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 Amendments (not including errata content) or revisions do not apply to this standard, but parties to agreements based on this standard are encouraged to investigate whether The latest version of these files is available. For undated references, the latest edition applies to this standard. GB/T 19557.1 General guidelines for testing specificity, consistency and stability of plants

3 Terms and definitions

The terms and definitions established in GB/T 19557.1 apply to this standard.

4 DUS test technical requirements

4.1 Test materials 4.1.1 The time and place of the test variety delivered by the approval authority and the quantity and quality of the plant material required for testing. Non-tested For materials submitted by countries or regions, applicants must provide customs, phytosanitary, etc. in accordance with local regulations on entry, exit and transportation. file. 4.1.2 The test materials submitted shall be plants of the same age that are vegetatively propagated, and if they are grafted and propagated, the cultivar shall have at least 1 branch, the varieties cultivated in the open field have at least 3 branches. The applicant must state that the test materials are tissue culture seedlings, cuttings from roots or grafted seedlings. The graft or scion of the grafted seedling should heal firmly. 4.1.3 The number of test materials provided shall not be less than 9 strains. 4.1.4 The new variety of materials to be tested shall be plants that are free of pests and diseases and grow normally. 4.1.5 Except where the approval authority permits or requires the treatment of the material, the submitted plant material shall not be subject to any amount of trait expression. External processing. If it has been processed, details of the processing should be provided. 4.2 Test methods 4.2.1 Test cycle and time Test at least one growth cycle if the test conditions are met. 4.2.2 Test location The test site for the new variety to be tested shall be carried out in the test base and laboratory designated by the approval authority. 4.2.3 Test conditions The test should be carried out under conditions in which the relevant characteristics of the new variety to be tested can be fully expressed. 4.2.4 Test Design 4.2.4.1 Each test should be based on 9 plants, and the tested varieties should be planted in the same location as the standard and similar varieties. Under the environmental conditions, 3 replicates were set, with 3 replicates per replicate. ......

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