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GB/T 37069-2018: Rules for alfalfa fall dormancy rate evaluation
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| GB/T 37069-2018 | English | 199 |
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Rules for alfalfa fall dormancy rate evaluation
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GB/T 37069-2018
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Basic data | Standard ID | GB/T 37069-2018 (GB/T37069-2018) | | Description (Translated English) | Rules for alfalfa fall dormancy rate evaluation | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B25 | | Classification of International Standard | 65.020.20 | | Word Count Estimation | 10,115 | | Date of Issue | 2018-12-28 | | Date of Implementation | 2019-07-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 37069-2018: Rules for alfalfa fall dormancy rate evaluation---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.
Rules for alfalfa fall dormancy rate evaluation
ICS 65.020.20
B25
National Standards of People's Republic of China
苜蓿 眠 sleep grading assessment
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 is drafted by. Beijing Forestry University, National Animal Husbandry Station.
The main drafters of this standard. Lu Xinshi, Yan Xujiang, Wang Tiemei, Li Xinyi, Yan Xiujiang, Qi Xiao, Feng Changsong, Zhang Jingni, Guan Yu, Ma Jinxing,
Shao Linhui, Xu Dawei, Wang Hongliu, Gao Fei.
苜蓿 眠 sleep grading assessment
1 Scope
This standard stipulates the rules for the classification of perennial tetraploid fall dormancy.
This standard is applicable to the evaluation of fall dormancy of alfalfa, hybrid flower and yellow bud varieties, strains and their germplasm materials.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Fall dormancy faldormancy
In the northern latitudes, due to the shortening of sunshine hours and the decrease of temperature in autumn, the physiological dormancy of cockroaches is caused, resulting in plant morphology, growth rate and re
The characteristics of the ability to change.
3.2
Fall dormancy level faldormancyrate
The degree of fallacy of the fall dormancy expressed by the dimensionless number ranges from 0 to 11. The smaller the value, the stronger the fall dormancy.
3.3
Fall dormancy type faldormancygrouptype
The type according to the degree of similarity of the Qiu Jinmian class.
Note. The type of fall dormancy is divided into extremely fall dormancy type, fall dormancy type, semi-autumn sleep type, non fall dormancy type and very non fall dormancy type.
3.4
Autumn castration falcutting
The autumn castration method used when grading the fall dormancy.
Note. Usually performed 30 days before the first frost period.
3.5
Recycled natural height regrowthcanopyheight
The natural height of the regenerated plants after the fall mowing is the vertical height from the ground to the highest part of the plant.
4 fall dormancy rating
4.1 fall dormant standard control variety
When the fall dormancy level is assessed, the fall dormant standard control variety should be used. The control species fall asleep grade 0 to 11 grade, see Appendix A.
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