GB/T 29371.4-2012 English PDF

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GB/T 29371.4-2012: Technical rules for seed producing system of two-line hybrid rice -- Part 4: Technical rules for F1 seed production
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 29371.4-2012	529	Add to Cart	4 days	Technical rules for seed producing system of two-line hybrid rice -- Part 4: Technical rules for F1 seed production	Valid

Similar standards

GB/T 29371.2   GB/T 29371.1   GB/T 29371.3   GB/T 44618   GB 20464   

Basic data

Standard ID: GB/T 29371.4-2012 (GB/T29371.4-2012)
Description (Translated English): Technical rules for seed producing system of two-line hybrid rice -- Part 4: Technical rules for F1 seed production
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B21
Classification of International Standard: 65.020.20
Word Count Estimation: 23,286
Quoted Standard: GB/T 29371.1-2012; GB/T 29371.3
Adopted Standard: GBT 1.1-2009
Regulation (derived from): National Standards Bulletin 2012 No. 42
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the type of infertility hot rice seed production base CMS requirements, seed production season with flowering arrangements, the parents of the population structure and sowing, seedlings, transplanting, fertilization, and the parent

GB/T 29371.4-2012: Technical rules for seed producing system of two-line hybrid rice -- Part 4: Technical rules for F1 seed production

---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.
. Technical rules for seed producing system of two-line hybrid rice Part 4; Technical rules for F1 seed production ICS 65.020.20 B21 National Standards of People's Republic of China Hybrid rice seed production systems technical specifications Part 4. Hybrid Seed Technical Specifications Part 4. TechnicalrulesforF1seedproduction Issued on. 2012-12-31 2013-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 29371 "two-line hybrid rice seed production systems technical specifications" is divided into five parts. --- Part 1. Terminology; --- Part 2. sterile line seed production specifications; --- Part 3. Specification for Field sterile line seed propagation techniques; --- Part 4. Hybrid Seed Technical Specifications; --- Part 5. Identification of seed purity and sterile line monitoring technical specifications. This section GB/T Part of 429,371. This section drafted in accordance with GB/T 1.1-2009 given rules. This section proposed by the People's Republic of China Ministry of Agriculture. This part of the National Standardization Technical Committee of Crop Seeds (SAC/TC37) centralized. This section is drafted. Hunan Hybrid Rice Research Center, Hunan Longping Seed Industry Co., Ltd., Hunan Agricultural University, Hunan Seed management Bureau, Anhui Academy of Agricultural Sciences, Jiangsu Academy of Agricultural Sciences, Guangdong Academy of Agricultural Sciences. The main drafters of this section. Zhou Cheng Shu, Liu Aimin, Shaw storied, Wang Shouhai, Cui Meng Liao, Lu Chuan roots, Wang Feng, Liu Jianbing, Li Wen Xiang, Ouyang Aihui. Hybrid rice seed production systems technical specifications Part 4. Hybrid Seed Technical Specifications

1 Scope

This section GB/T 29371 specifies the temperature sterility rice CMS line and japonica sensitive sterile line seed production base requirements, seed season Festival and flowering arrangements, the parents of the group structure and planting seedlings, transplanting, fertilizing, the parents of the prediction and regulation of flowering, and outcrossing situation improved, people Workers pollination, pest control, female fertility control, seed purity determine, cleaning, harvesting, drying and other hybrid seed technology and Field Investigation Report Upload content and methods. This section applies to the use of high-temperature rice seed sterility type CMS line and japonica type photosensitive male sterile lines.

2 Normative references

The following documents for the application of this document is essential, dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 29371.1-2012 hybrid rice seed production systems Technical specifications - Part 1. Terminology GB/T 29371.3 hybrid rice seed production systems Technical specification - Part 3. sterile line field with the technical specifications breeder

3 seed base requirements

3.1 Production Base Fertility Sensitive rhythm requirements Daily average temperature data collection target seed production bases of its own meteorological observations since the simultaneous analysis of the base in anticipation seed fertility sensitive stage Within the day long, according to GB/T 29371.1-2012 2.11 in the method used to calculate the seed sterile line in this base made possible fertility Min A sense of safety factor of fertility, according to producers fertility risk tolerance, choose the safety factor Fertility Fertility rhythm of 0.95 to 1, Fertility rhythm should ≥20d. Weather Safety Requirements 3.2 Seed heading and flowering stage Chances from the start to pollinate the end of the spike - heading ≥3d consecutive day rainfall weather ≤5%, daily average temperature of 24 ℃ ~ 28 ℃, the daily maximum temperature ≤35 ℃, minimum temperature ≥21 ℃, relative humidity of 75% to 90%. 3.3 Production Base Requirements Production Base of paddy requirements concentrated, fertility levels, the irrigation and drainage convenient, Hanlaobaoshou avoid mountain shade and cold soak Tian Tian seed, fertility Sensitive sterile line of irrigation water temperature should be higher than the threshold temperature above 1 ℃. No domestic same family of plants quarantine. 3.4 Seed isolation requirements Isolation system of farming plains pitch ≥100m (indica) or ≥500m (japonica), or non-male rice and seed planting zone of separation Maternal before heading difference ≥25d, or hills, woods, village houses as a barrier isolation, or planting seed in the quarantine area paternal. ......

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