GB/T 17317-2011Rules of the production technology for wheat basic seed (English PDF)

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 17317-1998 "wheat seed production technology rules." This standard 17317-1998 major changes compared to GB/T as follows:

--- Increased use of strains circulating production method of the original species;

--- Increase or decrease the adjustment of the original standard section, the original production of breeder seed breeding, production with three-field system with two original species and nursery stock production system Three kinds of seed production methods were separate chapter, other sections also made corresponding changes. The standard proposed by the People's Republic of China Ministry of Agriculture. This standard by the National Standardization Technical Committee seed crops (SAC/TC37) centralized. This standard was drafted. Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, the National Agricultural Technology Extension Service Center, Institute of Genetics Institute of Developmental Biology, Shijiazhuang Academy of Agricultural Sciences, National Engineering Research Center for Wheat, Henan seed management station, Henan AGRICULTURE Wheat Research Center Institute, Institute of Agricultural Sciences Lixiahe, Crop Research Institute, Sichuan Academy of Agricultural Sciences, Beijing Seed Management Station, Shandong Province seed management station. The main drafters of this standard. Zhou Yang, Zhang Aimin, Guo Jin Dynasty, Guo Tiancai, Tang Qilin, Zhao Hong, Bo bridge, Zhu Huazhong, Crawford flat, Lv Jianhua, Qiu army. This standard replaces the standards previously issued as follows:

--- GB/T 17317-1998. Wheat seed production technology rules

1 Scope

GB/T 17317-2011 is the Chinese national standard on rules of the production technology for wheat basic seed, in the field of agriculture. The /T suffix marks it as a recommended standard: it is not compulsory by itself, but it becomes binding as soon as a contract, a tender or a customer specification calls it up - which in practice is how most foreign buyers meet it. It was issued on 30 December 2011 by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China, and has been in force since 1 April 2012. Classification: ICS 65.020.20, CCS B21. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there. The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.

This standard specifies the technical requirements for wheat seed production. This standard applies to wheat seed production.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Inspection of

GB/T 3543 (all parts) crop seeds

GB 4404.1 seed crops - Part 1. cereal

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Breeder seed breeder'sseed Breeders bred genetic traits stable and consistent characteristics of the species or a combination of the first batch of parent seed.

3.2 Stock basicseed According to the present regulations to achieve the production of the original species of seed quality standards.

4 Seed production

4.1 using the original species of breeder seed production With breeder seed sowing directly to dilute the original seed production nursery stock, at a critical stage of tillering, he got up, jointing, heading and maturity and so pure, respectively Degree identification, removal strict hybrid strains, and carries out the external field.

4.2 three-field system of production of the original species

4.2.1 plant (spike) Select

4.2.1.1 Source Material Original species nursery, selected strain (ear) and line garden plants (ear) Department nursery, seed multiplication fields.

4.2.1.2 Selection Criteria Plant traits, panicle traits, growth period, disease resistance, stress tolerance and other major agronomic traits consistent with the original breed characteristics.