This standard specifies the terminology, quality requirements, grading basis, inspection methods, packaging, marking and transportation methods for pineapple [Ananas comousus (L.) Merr.] seedlings. This standard applies to the quality identification of sucker buds, offspring buds and crown buds of pineapple varieties such as Cain and Bali. The quality identification of pineapple seedlings of other varieties can be referred to. NY/T 451-2001 Pineapple Seedlings NY/T451-2001 Standard download decompression password: www.bzxz.net
This standard specifies the terminology, quality requirements, grading basis, inspection methods, packaging, marking and transportation methods for pineapple [Ananas comousus (L.) Merr.] seedlings. This standard applies to the quality identification of sucker buds, offspring buds and crown buds of pineapple varieties such as Cain and Bali. The quality identification of pineapple seedlings of other varieties can be referred to.

Agricultural Industry Standard of the People's Republic of China
NY/T 451—2001
Pineapple Seedlings
Pineappleshoots
Issued on 2001-08-20
Implemented on 2001-11-01
Issued by the Ministry of Agriculture of the People's Republic of China
NY/T451—2001
Appendix A, Appendix B and Appendix C of this standard are normative appendices. This standard is proposed by the State Farm Reclamation Bureau of the Ministry of Agriculture.
This standard is under the jurisdiction of the Technical Committee for Standardization of Tropical Crops and Products of the Ministry of Agriculture. The drafting unit of this standard is the Quality Supervision, Inspection and Testing Center for Tropical Crops Seeds and Seedlings of the Ministry of Agriculture. The main drafters of this standard are Qi Zhiping and Shen Zhibin. 56
1 Scope
Pineapple
NY/T 451---2001
This standard specifies the terminology, quality requirements, grading basis, inspection methods, and packaging, marking and transportation methods of pineapple [Ananas comosus (L.) Merr.J seedlings.
This standard applies to the quality identification of sucker buds, offspring buds and crown buds of Cain and Bali pineapple varieties. The quality identification of pineapple seedlings of other varieties can be implemented as a reference.
2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For any dated referenced document, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties to the agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, the latest version shall apply to this standard. GB9847—1988 Apple Seedlings
Plant Quarantine Regulations (State Council of the People's Republic of China) Implementation Rules of the Plant Quarantine Regulations (Agricultural Part) (Ministry of Agriculture of the People's Republic of China) 3 Terms and Definitions
The following terms and definitions apply to this standard. 3.1
Terminal bud
The bud growing on the pineapple fruit, also known as the terminal bud. 3.2
Descendant bud
The bud growing from the pineapple fruit stalk, also known as the support bud. 3.3
Absorptive bud
The bud growing between the axils of the leaves and stems of the mother plant above the ground. 4 Quality requirements
4.1 Basic requirements
4.1.1 The source of the seedlings is clear, and the purity of the variety is greater than 98%. 4.1.2 The growth is strong, the leaf color is normal, the growth is good, and the stems are not rotten or deteriorated. 4.2 Grading
On the premise of meeting 4.1, grading shall be carried out according to the following indicators. According to the three indicators of stem thickness, seedling height and longest leaf width, pineapple seedlings are divided into two levels (see Table 1 and Table 2). Seedlings below the second level standard are substandard seedlings and shall not be sold as commercial seedlings.
NY/T 451—2001
Longest leaf width
Longest leaf width
5 Inspection method
5.1 Inspection requirements
The same batch of seedlings shall be inspected uniformly.
5.2 Sampling
Table 1 Grading indicators for pineapple sucker bud seedlings and bud seedlings
Table 2 Grading indicators for pineapple crown bud seedlings
Carry out according to the provisions of 6.2 in GB9847—1988. 5.3 Purity test
2. 5~~3. 6
Unit: cm
Unit: cm
Observe the leaf morphology and stem morphology of each sample visually to determine the number of seedlings of the variety to be inspected. The purity of the variety is calculated according to formula (1).
Number of seedlings of the specified variety in the sample × 100
Purity of variety (%) -
Total number of seedlings in the sample
Round the result to the nearest decimal place. The inspection results shall be recorded in the record table specified in Appendix A. 5.4 Appearance inspection
· (1)
Stem diameter: Measure the maximum diameter 3 cm above the base of the crown bud or sucker seedling with a vernier caliper; measure the maximum diameter of the seedling from the base to the highest point of the seedling with a steel tape measure; and measure the maximum width of the longest leaf with a ruler flattened to measure the widest part of the leaf. The inspection results shall be recorded in the record table specified in Appendix A. 5.5 Epidemic inspection
It shall be carried out in accordance with the relevant provisions of the "Plant Quarantine Regulations" of the State Council of the People's Republic of China and the "Detailed Rules for the Implementation of the Plant Quarantine Regulations (Agricultural Part)" of the Ministry of Agriculture of the People's Republic of China.
6 Inspection rules
6.1 The quality inspection of seedlings shall be carried out in the seedling circle when the seedlings are sent out. 6.2 Before the seedlings are sent out, the quality of the seedlings shall be inspected by the seed and seedling quality inspection technical department jointly entrusted by the supply and demand parties or other units authorized by the department, and the pineapple seedling quality inspection certificate shall be issued by the inspection technical department. The format of the seedling quality inspection certificate is shown in Appendix B. 6.3 Productive seedlings shall have a quality certificate. 7 Grading criteriabzxZ.net
7.1 In accordance with the provisions of 4.1, if one of the requirements is not met, it shall be deemed unqualified. 7.2 According to the provisions of Table 1 or Table 2, if all indicators reach the first-level indicators, they are first-level seedlings; if some indicators do not reach the first-level seedlings, they are judged as second-level seedlings. If all indicators reach the second level, they are second-level seedlings; if one indicator does not reach the second-level seedlings, they are unqualified seedlings. 58
8 Packaging, marking, and transportation
8.1 Packaging
If pineapple seedlings need to be transported, they should be packed in bamboo baskets or other containers with good ventilation and air permeability. 8.2 Marking
NY/T 451--2001
To prevent the mixing of varieties, the seedlings need to be labeled when they are round, see Appendix C. Indicate the seedling name, grade, quantity, seedling raising unit, certificate number and date of issue. If more than two varieties are shipped on a truck at the same time, they should be loaded in order of varieties and clearly distinguished. When filling in the label, a non-fading marker should be used.
8.3 Transportation
Pineapple seedlings should be protected from sunlight and rain during transportation and transported in covered vehicles. When transported to the destination, they should be immediately covered and placed in a shade shed or cool place for planting as soon as possible.
NY/T 451-2001
Variety:
Seedling raising unit:
Number of plants reported for inspection:
Sample plant number
Reviewer (signature):
Verifier (signature):
Appendix A
(Normative Appendix]
Quality inspection record form for pineapple seedlings
Seedling purchasing unit:
Number of plants sampled:
Inspector (signature):
Longest leaf width
Inspection date: year and month
Inspection unit (official seal):
Seedling raising unit
Number of plants produced
Test results
Test opinion
Certificate issuance period
Reviewer (signature):
Attachment B
(Normative attachment)
Veritas seedling quality inspection certificate
Seedling purchasing unit
Seedling name
Purity, %
Verifier (signature):
Grade, %
Grade 1, %
Certificate validity period,
Tester (signature):
NY/T 451--2001
Unqualified, %
NY/T 451--2001
Seedling unit
Certificate number
Issue date
Appendix C
(Normative Appendix)
Pineapple seedling label
Pineapple seedling
Note: The label is made of 150g kraft paper. Label period Gold Medal Edge, Figure C.1
Veloce seedling label
Unit is cm
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