This standard specifies the method and procedure for determining the number of seeds of other plants. This standard is applicable to the determination of the number of seeds of other plants for the quality inspection of forage seeds, lawn grass seeds and forage crop seeds. GB/T 2930.3-2001 Forage Seed Inspection Procedure Determination of the number of seeds of other plants GB/T2930.3-2001 Standard download decompression password: www.bzxz.net

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National Standard of the People's Republic of China
GB/T 2930.1~-2930.11—2001
Rules for the inspection of forage seeds
Rulcs for forage seed tcsting200103·14 issued
2001-06-01 implementation
National Quality and Technical Commission issued
B/r2930.3—201
This standard is based on the International Association for the Inspection of Forage SeedsThis standard is equivalent to the international standard for the determination of species numbers and its inspection method in terms of variable cost and harvest technology, and some of its local value species are determined in 1999. In addition, it also includes some species that have not been included in international standards but have important economic value in the country and have suitable inspection methods. In order to make the standard have both the advancedness and scientificity of international standards, it can also meet the requirements of the inspection and testing of non-standard species. This standard is G1/29%0,1~S3G.71-2001-3 series of standards for livestock species inspection, liquid series standard 290:182 household species inspection procedures> will be revised and promoted as follows: GR/T 29H0.1.-300J
livestock seed inspection procedures sampling
GBT23.-21 soft forage seeds inspection procedures
Gh/T 2980. $--2CC:
GB/T 20S0.42001
G/T 2980. 5 2001
GB/T (. e- 2:
GB/T 2930. 7- 2GG1
G3/1 29$0,8-200)
Inspection procedures for pasture grass
Inspection procedures for single seeds
Inspection procedures for pasture grass seeds
Inspection procedures for pasture grass seeds
Inspection procedures for pasture grass seeds
Inspection procedures for pasture grass seeds
Clarity analysis
Determination of other plant species
Testing
Biological science of cattle (tetrazolium determination
Reverse determination
Species certification
Moisture determination
Annual determination
GB/T 2930.$-2CC2
Forage Seed Inspection Procedure
GR/T2980.10-2! Pasture Seed Inspection Procedure
G3/T2930.112c01 Forage Seed Inspection Procedure! The revised standard has certain differences from the international regulations in the format of the inspection report. The international regulations put all the inspection items in the main text, and most of the contents of the regulations are in the appendix. When using, you need to read it before and after. In fact, it is inconvenient to take a photo. In the compilation of this standard, each standard is written as an independent standard, the main content is included in the standard, and the relevant content is recorded in the standard text of each standard.
This standard is the starting unit: the Ministry of Agriculture's grass and grass depth rate seed quality supervision center "Zhouzhou" This standard is the main drafter: Gong Xuerong participated in the drafting of the staff: Yu Ling, Cheng Jianhua, Nan Zhibiao, Ben Chunran. Station
GB.T 7930.3—2001
STA Before
, the risk of the reported variety is small enough to stimulate its production capacity. Seed quality inspection is to evaluate the quality of seeds before the release of seeds to minimize this risk. Seed quality is a concept of comprehensive characteristics of households and companies: this characteristic is important to all sectors of the seed industry, such as producers, farmers, farmers, operators, government agencies or departments responsible for seed management, etc. Under all circumstances, the final purpose of the record is to determine the seed value. Seeds are living products, and their condition cannot be accurately tested like inanimate or biological products. The methods used must be based on scientific knowledge and experience in seed testing. New requirements for accuracy and interactivity are determined by the current testing standards. This procedure defines the standards and methods for use in international seed trade. For this purpose, high accuracy, universality and reproducibility of the testing methods are necessary. When seed trade crosses national borders, it is possible that testing laboratories in different countries will be used. Therefore, it is very important that all testing laboratories adopt consistent standard methods so that consistent test results can be obtained within the permitted range. This procedure is divided into two parts: The text of the regulation and its annexes describe the principles and sources of the determination of the items, the definitions adopted, and an overview of the methods and procedures used. The specifications are cited in the specifications and the standard procedures and methods are described in detail. The results of the inspection and verification in accordance with this regulation must be strictly followed, and the interpretation of each item in the specification and the relevant details in the relevant documents must be followed. This regulation and its appendices should be used as much as possible when building a national seed trade regulation and implementing the seed quality management regulations. Although the age of the seed is not necessarily conducive to the adoption of international certification, it must be recognized that if the adoption is inconsistent with the procedures and annex texts accepted by the same international standards, it will hinder the import of seeds from various countries. The inspection of seeds is a consultation with the inspection of the seeds for the identification and valuation of the seeds. The inspection of seeds takes into account various factors such as the planting season, the type of seeds and the altitude. For this type of inspection, this procedure and the relevant documents only provide a guide, and other relevant technical methods can be used as supplementary methods. This procedure and For the provisions of this standard for the main crops, not all sections are included, but the same applies to other crops mentioned in this standard.
In addition, for the purpose of providing a brief guide, it is necessary to consult the manufacturer's instrument, but this does not mean that the old 157A considers such an instrument to be the best: similar products made by other countries: 2
1 Flower
National Standard of the People's Republic of China
Rules for testing of forage seeds
Determination of the number of seeds of other plants
Rules for testing the number of seeds of other plants by This standard applies to the determination of the number of seeds of three forage grasses, apple grass seeds and other withered plants. 2. Reference standards
The following standards contain provisions that have been cited in this standard and have become the text of this standard. The smaller version is valid in the state of publication of this standard. All standards will be revised and the value will be used in this standard. The correct method of analysis is prohibited from using the latest version of the standard (I15/T320,1-23J1 or the total inspection procedure 2-21 forage seed inspection specification purity analysis
H/T170-1987 number rounding rules
3 Inspection purpose
To inspect the total number of samples and the content of other resistant species in the whole batch of samples and the content of other resistant species in the samples submitted for inspection. Other species can be all other direct species or a certain species or one of its species. 4 Definition
This specification is defined as follows.
4.1H Other species of seeds
See 4.2 in GB/T2930.22001.
4.2 Complete identification
with 56 test samples, the missing ones are the ones that can be obtained. 4.3 Limited identification -eal
from a single test sample (for the determination of the species in accordance with the method of producing the specified variety in 6.1. [, 4.4 Reduced identification -eal
from some test samples <1.2 to all other protected seeds. 4.5 Reduced limited identification -eal
from a single test sample (for the determination of the species in accordance with the method of producing the specified variety in 6.1. [, 4.4 Reduced identification -eal
from some test samples <1.2 to all other protected seeds. 4.5 Reduced limited identification -eal
from a single test sample (for the determination of the species in accordance with the method of producing the specified variety in 6.1. [, 4.5 Reduced limited identification -eal
from a single test sample) the missing ones are the ones that can be obtained.
State Administration of Quality and Technical Supervision 2001-03-14 approved 23
2001-0E-0F implementation
GB/T 2930.3-2001
) different aperture range sieves (including table, air collector. c) almost hold too much energy or double day microscope, sensitive, etc. d sensitive disk is c.1 more than the large flat
5 Inspection procedures
6-7 War test products
6.1. Others including seed test sample weight shall not be less than 25000 foreign units, or shall comply with GB/12S3C.! 2001 in Table 1 specified in the amount.
6.1.2 When the sample is sent for testing, only one fifth of the specified test sample weight (limited to the minimum) shall be used for setting. 5.2 Determination
The requirements of the sender shall be summarized.Find all the seeds of the same plant or a certain specified species in the test item, and count the number of seeds of each species.
In the case of medical conditions and procedures, if the inspection age is required to be reduced, the inspection can be corrected once a certain amount of seeds is found during the inspection.
7 Calculation and presentation of results
The actual weight of the test sample, the name of the other plant seeds (with the required scientific name) and the number of seeds from the weight should be recorded in the cultivation result report.
The result is expressed as the number of all other plant seeds or seeds of a specified species found in the actual sample weight (also called percentage) - also called percentage (such as per thousand points! The number of seeds of other plant species or specified species. If the species found cannot be narrowly determined to a species: it can be used as evidence for identification.
If the same product is tested for 1 or more times, the result is expressed as the total number of seeds of other species found in the total weight of the sample, and the numerical value is rounded off according to the provisions of GB/T817. When judging whether there is a significant difference between the determination results of two identical or different samples sent for testing at the same or different testing stations , can be compared with the provisions of Table A1 in the Appendix of the standard, but when comparing, the two samples must be similar, according to the proposed test specifications, and the test method must be indicated on the result record, such as "complete test", "limited test", "simplified test", "limited test". The two samples are determined to be the average of the results. 16~·1s
30--33
34--37
13--43
45~-52
53·-57
70~·75
GB 2930.3—2001
Appendix A
1 Appendix to the standard)
Allowable interval
Two stable tests, the allowable interval of the number of days of other model seed determinations Table A1
(two-tailed test at 5% significance level)
Note that the two control tests can be averaged in the same
two continental light results
103---J0
11--11
116---25
120--133
134---42
15~16:
152_60
151~169
170--=78
| 189-166 | | tt | tt | --394
805~49
410--424
4:5~13
449--454
4F.5~·469
470--485
486~·501
508--8
5T9~·534
Allow the difference
or not to implement some products, the products sent can be the same or different, but the quantity of the products sent must be similar,
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