GB/T 37068-2018 English PDF

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GB/T 37068-2018: Technical specification for forage stress tolerance test -- Acid tolerance test
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 37068-2018	109	Add to Cart	3 days	Technical specification for forage stress tolerance test -- Acid tolerance test	Valid

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Basic data

Standard ID: GB/T 37068-2018 (GB/T37068-2018)
Description (Translated English): Technical specification for forage stress tolerance test -- Acid tolerance test
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B25
Classification of International Standard: 65.020.20
Word Count Estimation: 5,514
Date of Issue: 2018-12-28
Date of Implementation: 2019-07-01
Regulation (derived from): National Standard Announcement No. 17 of 2018
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 37068-2018: Technical specification for forage stress tolerance test -- Acid tolerance test

---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 specification for forage stress tolerance test--Acid tolerance test ICS 65.020.20 B25 National Standards of People's Republic of China Forage resistance identification technical specification Published on.2018-12-28 2019-07-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the Ministry of Agriculture and Rural Affairs of the People's Republic This standard is under the jurisdiction of the National Animal Husbandry Standardization Technical Committee (SAC/TC274). This standard was drafted. Beijing Institute of Animal Husbandry and Veterinary Medicine, Chinese Academy of Agricultural Sciences, National Animal Husbandry Station. The main drafters of this standard. Li Xianglin, Zhao Xiaoli, Tong Zongyong, He Feng, Wan Liqiang, Wang Yu, Miao Lihong. Forage resistance identification technical specification

1 Scope

This standard specifies the technical specifications for the determination of acid resistance in forage identification. This standard applies to the evaluation of acid resistance between different pastures and different varieties of the same pasture.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 2930.4 Forage seed test procedure germination test

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Acid resistant acidtolerance Forage grass tolerance to different acidic conditions. 3.2 Seed germination seedgerminationstage From the time of sowing to the time when the seedlings are fully unfolded. 3.3 Seedling shootstage From the time when the seedlings are fully expanded to the time when the branches or tillers appear. 3.4 Vegetative growth period vegetativegrowthstage From the seedling stage to the grass heading period or the period before the bud stage of the leguminous grass.

4 acid resistance determination

4.1 Seed germination period 4.1.1 Sample preparation For each grass to be tested, choose 1600 healthy seeds. 4.1.2 Acid stress treatment Set up three acid stress gradients, adjust the dilute hydrochloric acid solution to pH 4.0, 4.5 and 5.0, respectively, and add to the germination bed for each acidity treatment. 4 replicates, 100 seeds per replicate, other parameters were tested for germination according to the method of GB/T 2930.4, corrected every 2 days pH value. ......

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