This standard specifies the quality requirements, inspection methods and inspection rules for cotton, jute, kenaf and flax seeds. This standard applies to fiber crop seeds produced and sold. GB 4407.1-1996 Fiber seeds of economic crops GB4407.1-1996 Standard download decompression password: www.bzxz.net

GB 4407.1-1996
In order to protect the interests of seed production, management and users, avoid the losses caused by the use of unqualified seeds in production, and make the cultivated fine varieties obtain high quality and high yield, a unified quality standard must be used for standardization, and the seed quality standard is specially formulated. Considering the systematic and scientific nature of the layout of the quality standard of crop seeds, new adjustments were made to its overall arrangement during the revision. The economic crop seeds are composed of two independent parts: fiber and oil. Among them, fiber crops include cotton, jute, kenaf, and flax. Based on GB/T3543.1~3543.6-1995 "Inspection Procedures for Crop Seeds", through a large number of years of experimental research, typical investigations, and spot checks, the economic crop seed quality standards (i.e., purity, cleanliness, germination rate and moisture) in GB4408-84 "Cotton Seeds" and GB4409-84 "Hemp Seeds" have been comprehensively revised. At present, there are no hybrid seeds of economic crop seeds. According to the unified regulations, conventional seeds are not graded. Due to the great changes in the inspection methods and judgment standards, the germination rate was changed to seedling judgment, so the value was lower than that before the revision. The purity adopted the rapid method, and the value was generally higher than that before the revision. The standard value of moisture did not change much. This standard was proposed by the Ministry of Agriculture of the People's Republic of China. This standard is under the jurisdiction of the National Technical Committee for Standardization of Crop Seeds. The responsible drafting units of this standard are: National Seed Station, Hebei Seed Station, Shandong Seed Station, Jiangsu Seed Station, Guangxi Zhuang Autonomous Region Seed Station, Heilongjiang Seed Administration Bureau, Hunan Seed Station, Gansu Seed Station, Jiangxi Seed Station, Inner Mongolia Autonomous Region Seed Station, and Cotton Quality Monitoring Center of the Ministry of Agriculture.
Main drafters of this standard:
Cotton: Li Xiujin, Chen Jianhua, Tang Yongxiang, Deng Yinjin, Zhang Shumin. Hemp: Zhao Juying, Ma Yuchao, Shen Yuexin. Jute: Zhao Juying, Bi Xinhua.
Flax: Chang Xiulan, Chen Yajun, Yang Cunbao. This standard is entrusted to the National Agricultural Technology Extension Service Center of the Ministry of Agriculture for interpretation. This standard was first issued in May 1984.
1 Scope
National Standard of the People's Republic of China
Fiber
Main
Seeds of economic-Fibres
GB 4407.1-1996
Replaces 4409--84
GB4408..--84
This standard specifies the quality requirements, inspection methods and inspection rules for cotton, jute, kenaf and flax seeds. This standard applies to fiber crop seeds produced and sold. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T3543.1—1995 General rules for inspection of crop seeds GB/T 3543.2—1995
Inspection procedures for crop seeds
GB/T3543.3—1995
Inspection procedures for crop seeds
Clarity analysis
GB/T3543.4—1995
Inspection procedures for crop seeds
Germination test
GB/T3543.5--1995
Authenticity and variety purity identification
Inspection procedures for crop seeds
Inspection procedures for crop seeds
GB/T 3543.6—19953
Determination of moisture
3 Definitions
This standard adopts the following definitions.
3.1 Original seeds
Seeds of the first to third generations bred from breeders' seeds or produced according to original seed production technical regulations that meet original seed quality standards. 3.2 Improved seeds
Seeds of the first to third generations bred from conventional original seeds and hybrids that meet improved seed quality standards. 4 Quality requirementsbZxz.net
The quality indicators of cotton seeds are shown in Table 1.
Crop name
Cotton hairy seeds
Cotton light seeds
4.2 The quality indicators of jute, kenaf and flax seeds are shown in Table 2. Approved by the State Bureau of Technical Supervision on December 28, 1996 110
Not less than
Not less than
Germination rate
Not less than
Not higher than
Implemented on June 1, 1997
Crop name
5 Inspection method
5.1 Sampling
According to GB/T3543.2.
5.2 Purity analysis
According to GB/T3543.3.
5.3 Germination test
According to GB/T3543.4.
5.4 Authenticity and variety purity identification
According to GB/T3543.5.
5.5 Moisture determination
According to GB/T3543.6.
6 Inspection rules
GB 4407.1—1996
Not less than
Not less than
Germination rate
Not less than
Not higher than
The purity index of the variety is the basis for dividing the seed quality level. If the purity does not meet the original seed index, it will be downgraded to a good seed, and if it does not meet the good seed index, it will be an unqualified seed.
If any one of the purity, germination rate, and moisture does not meet the index, it will be an unqualified seed. 111
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