GB/T 28108-2025Detection and identification of Rhaponticum repens (L.) Hidalgo (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 for standardization documents" Drafting.

This document replaces GB/T 28108-2011 "Cornflower Quarantine Identification Method". Compared with GB/T 28108-2011, except for the structure In addition to adjustments and editorial changes, the main technical changes are as follows.

— Changed "Scope" (see Chapter 1, Chapter 1 of the 2011 edition);

— The terms "capitulate inflorescence" and "collar ring" were deleted, and the terms "rhizome", "involucral bract", "involucral bract", "involucral bract appendage", "thin In the definition of “fruit”, the term “tubular flower” was added (see Chapter 3, Chapter 2 of the 2011 edition);

— Changed "Classification information of creeping cornflower" (see Chapter 4, Chapter 3 of the 2011 edition);

— Changed "Instruments and Equipment" (see Chapter 6, Chapter 5 of the 2011 edition);

— Deleted "Laboratory Testing and Identification" (see Chapter 6 of the 2011 edition);

— Added "Field Sampling" and "Observation Methods and Sample Preparation" (see Chapters 7 and 8);

— Changed "Identification Method" (see Chapter 9, 6.3 of the 2011 edition);

— Changed "Result Determination" (see Chapter 10, Chapter 8 of the 2011 edition);

— Changed "Sample Storage and Processing" (see Chapter 11, Chapter 9 of the 2011 edition);

— Added classification information of the genus Lophatherum (see Appendix B);

— The morphological characteristics of creeping cornflower have been changed (see Appendix C, Appendix B and Appendix C of the 2011 edition);

— Added ITS sequence amplification and sequencing information and real-time fluorescence PCR detection of Centaurea prostrata (see Appendix E and Appendix F).

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document is under the jurisdiction of the National Technical Committee on Plant Quarantine Standardization (SAC/TC271).

This document was drafted by: China Institute of Inspection and Quarantine, Ningxia Hui Autonomous Region Agricultural Technology Extension Center, Fuzhou Customs Technical Center Center, Yinchuan Customs Technology Center, Shandong University, Yinchuan Customs of the People's Republic of China, Qingdao Customs Technology Center, Guangzhou Customs Technology Center, Erlian Customs Technical Center and Fangcheng Customs Comprehensive Technical Service Center.

The main drafters of this document are: Xu Han, Du Wei, Yu Wentao, Tan Jinghui, Zhang Wei, Hu Shiyao, Shao Xiuling, Wu Hairong, Lu Zhanjun, Yuan Shuzhen, Yan Zhengyue, Liu Mengdi, Zhang Ting, Li Zongze.

The previous versions of this document and the documents it replaces are as follows.

— First published in 2011 as GB/T 28108-2011;

— This is the first revision.

1 Scope

method.

This document applies to quarantine identification of creeping knapweed.

2 Normative references

This document has no normative references.

3 Terms, definitions and abbreviations