GB/T 32779-2016 English PDF

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GB/T 32779-2016: Climatic risk grade for seed production of super hybrid rice
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 32779-2016	179	Add to Cart	3 days	Climatic risk grade for seed production of super hybrid rice	Valid

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Basic data

Standard ID: GB/T 32779-2016 (GB/T32779-2016)
Description (Translated English): Climatic risk grade for seed production of super hybrid rice
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A47
Classification of International Standard: 07.060
Word Count Estimation: 9,992
Date of Issue: 2016-06-14
Date of Implementation: 2017-01-01
Regulation (derived from): National Standard Announcement No. 8 of 2016
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, grade and index calculation method of climatic risk of super hybrid rice seed production. This standard applies to super hybrid rice seed production climate risk diagnosis, assessment and so on.

GB/T 32779-2016: Climatic risk grade for seed production of super hybrid rice

---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.
Climatic risk grade for seed production of super hybrid rice ICS 07.060 A47 National Standards of People's Republic of China Super hybrid rice seed production climate risk rating 2016-06-14 release 2017-01-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by the China Meteorological Administration. This standard is nationalized by the National Committee for Standardization of Agricultural Meteorology (SAC/TC539). The drafting of this standard. Hunan Institute of Meteorological Sciences. The main drafters of this standard. handsome strong, Wang Mengjun, Xie Bai Cheng, Peng Li.

Introduction

This standard makes use of the related meteorological technology research results of hybrid rice seed production accumulated over the years to develop super hybrid rice seed production Waiting risk level, for the super hybrid rice seed production climate risk diagnosis, assessment, layout provides a standardized technical support. Super hybrid rice seed production climate risk rating

1 Scope

This standard specifies the type, grade and index calculation method of climate risk for super hybrid rice seed production. This standard applies to the super hybrid rice seed production climate risk diagnosis, assessment and so on.

2 terms and definitions

The following terms and definitions apply to this document. 2.1 Critical light temperature index criticalindexofphotoperiodandtemperature So that the fertility of sterile lines converted to the critical light temperature. Note. There are main indicators and temperature indicators. 2.2 Fertility transformation Climate risk climaticriskoffertilitytransformation During the sensitive period of the sterile line, the temperature and light elements exceeded the critical light and temperature index of fertility transformation, which led to the recovery of the fertility of the sterile line. Precipitation of rice seeds impure climate risk. 2.3 Pollination climate risk climaticriskofpolination Pollination period due to high temperature, low temperature, rain and other meteorological disasters lead to hybrid rice seed yield rate of low climate risk. 2.4 Seedling climate risk climaticriskforseedproduction Due to meteorological disasters lead to hybrid rice seeds impure, low yield climate risk.

3 level division

Super hybrid rice seed production climate risk from low to high divided into one to five, see Table 1. Table 1 Super hybrid rice seed production climate risk rating Grade risk A very low risk Secondary lower risk Three moderate risk Four higher risk Five very high risk ......

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