This standard specifies the definition of citrus grafted seedlings, stock-scion combination, stock and scion requirements, nursery seedling quality indicators, inspection and packaging, marking, transportation and other requirements. This standard applies to sweet orange, wide-skinned citrus, pomelo, lemon, kumquat, hybrid citrus and other one-year grafted seedlings (including field seedlings and container seedlings). GB/T 9659-2008 Citrus grafted seedlings GB/T9659-2008 standard download decompression password: www.bzxz.net
This standard specifies the definition of citrus grafted seedlings, stock-scion combination, stock and scion requirements, nursery seedling quality indicators, inspection and packaging, marking, transportation and other requirements. This standard applies to sweet orange, wide-skinned citrus, pomelo, lemon, kumquat, hybrid citrus and other one-year grafted seedlings (including field seedlings and container seedlings).

The clauses in the following documents become the clauses of this standard through reference in this standard. For all dated references, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties that reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all undated references, the latest versions are applicable to this standard.
GB5040 Quarantine Procedures for Citrus Seedlings at Origin

ICS 65. 020. 20
National Standard of the People's Republic of China
GB/T9659—2008
Replaces GB/T9659—1988
Citrus budding
Issued on 2008-06-18
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Administration of Standardization of the People's Republic of China
Implementation on 2008-12-01
This standard replaces GB/T9659—1988 "Grading and Inspection of Citrus Grafted Seedlings". GB/T9659—2008
This standard has modified the original standard name, and revised some terms, stock-scion combination methods, stock and scion regulations and requirements, seedling wood system, seedling inspection and packaging and transportation. The appendix A and appendix B of this standard are normative appendices. This standard is proposed and managed by the Ministry of Agriculture of the People's Republic of China. The main units of this standard are: Citrus Research Institute of Chinese Academy of Agricultural Sciences, and the Economic Crop Station of Citrus and Seedling Quality Supervision and Inspection Center of the Ministry of Agriculture.
The main drafters of this standard are: He Shaolan, Deng Lie, Wang Chengqiu, Chen Zhuniu, and Yang Canfang. The previous versions of the standards replaced by this standard are: GB/T9659-1988.
1 Scope
Citrus grafted seedlings
GB/T9659-2008
This standard specifies the definition of citrus grafted seedlings, rootstock combination methods, rootstock and scion requirements, seedling quality indicators, inspection and packaging, marking, transportation and other requirements.
This standard applies to one-year grafted seedlings (including field seedlings and seedlings) of sweet orange, broad-skinned mandarin orange, citrus, lemon, kumquat, and mixed citrus. 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 errors) or revised versions are not applicable to this standard. However, the parties who reach an 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. G5040 Quarantine Procedures for Origin of Straw Seedlings
3 Terms and Definitions
The following terms and definitions apply to this standard. 3.1
Scion
The branch or bud of the variety to be propagated placed on the grafting material during grafting 3.2
RootstockWww.bzxZ.net
The plant used to bear the scion during grafting
Budling
The grafting material cultivated after the specific grafting material and the rootstock are grafted. 3.4
Combination of the scion and roots toek The combination of the rootstock and scion in grafting. 3.5
Normal graft-middle The new vascular tissue at the junction of the scion and the grafting material conducts normally, without any defect or rot scars, and without any binding material and its lines. 3.6
Bending degree of graff-union The angle between the central axis of the trunk and the vertical extension line of the rootstock at the junction of the wood and the scion. 4 Stockstock-scion combination method
4.I Sweet orange: Poncirus trifoliata Raf., Poncirus trifaliate Raf.XCitrus sinensis Osbeck, 1
GB/T 9659--2008
Poncirus trifotiate Ral.XC.paradis Macf., Sour orange (C, reticutata), Citrus junos Tanaka, C. reticulata, C. reticutata, C. uurantiumXC.sp, etc. can be used as the veneer. 4.2 Wide-skinned citrus: You can choose Citrus grandis, Citrus orange, Citrus pomelo, sour orange, fragrant orange, red orange, and tou orange as rootstocks. 4.3 Pomelo: Use sour pomelo (c. grandis Osbeck) as rootstock, and some varieties can also use Citrus grandis, Citrus orange, or Citrus grandis as rootstocks. 4.4 Lemon: You can choose red, Tuge (C. reticu Lata), and fragrant orange as rootstocks. Other cracked skin virus-free strains except Eureka can also use Citrus grandis and Citrus grandis as rootstocks.
4.5 Golden withered: Use Citrus grandis as rootstock.
4.6 Hybrids can choose Citrus grandis, Citrus orange, and fragrant orange as rootstocks. 4.7 Each production area can formulate different varieties of Citrus grandis according to specific conditions. If you want to use a combination of sleeves, it is advisable to have more than 10 years of production assessment data. 5. Requirements for rootstock and scion: adapt to local ecological conditions and technology. Seeds of the rootstock should be transplanted from non-infected areas. The rootstock should be two-year-old. 5.2. Scion: 5.2.1 The rootstock should be selected from high-quality single plants that have been diseased (5.2.2 The scion should be healthy and the spring shoots should grow full and the buds should be plump. 5.2.3 Imported from other places, except for strict requirements. It is strictly forbidden to import from epidemic areas into non-epidemic areas. Quality indicators of seedlings to be exported. 6.1 Seedling production process magic. 6.2 Quarantine before the nursery. G13504 seedlings, straight roots, pure growth, single-seed seeds, strictly prohibited from collecting from sugar groups. More than one seedling has to be pierced. It is required to be free of pests and diseases, and to obtain plant quarantine certificates before export. 6.2.1 Before export, the whole plant quarantine department shall be responsible for the quarantine application letter and The country has regulations to quarantine the seedlings for quarantine diseases and pests.
The trees that have been quarantined can be issued with a quarantine certificate of origin. 6.2.2 All trees that are subject to quarantine should be chained or destroyed. 6.3 Basic requirements for grafted seedlings
6.3.1 The grafted part should be 10 cm above the ground. The grafting point should be healed and the binding should be removed. There should be no stumps or exposed. The cross section should be healed or in the process of healing.
6.3.2 The trunk should be straight, smooth, and more than 25 cm high (more than 15 cm for kumquats). It should have at least 2 branches that are more than 15 cm long and are not in a clump shape. The branches and leaves should be healthy. , the leaves are dark-edged and shiny. There are no serious damages from pests and diseases such as the moth. The curvature of the scion joint is not more than 15°, 6.3.3 The root system is complete, the main root is not bent, more than 1.5 cm long, the lateral roots and fibrous roots are well developed: the root neck is not twisted. 6.4 Seedling grading
6.4.1 Under the premise of meeting the provisions of 6.1.6.2 and 6.3, the seedling water diameter, number of branches, and shade tree height are used as the basis for grading. Grafting tapes of different varieties and rootstocks are divided into Grade 1 and Grade 2 according to their growth potential. The standards are shown in Table 1. 6.4.2 The lowest of the three items of seedling diameter, number of branches, and shade tree height is used as the grade. The seedlings below the Grade 2 standard are considered unqualified.
Lupi orange
Ji orange, red orange, Jun
Xiang orange, stupid orange, Goutouqu
, sour orange
dog head orange
Jing orange, red orange, Xiangying
7.1 Inspection method
Table 1 Grading standard for grafted citrus seedlings
Diameter of seedlings/
7.1.1 Diameter of seedlings: Use water bottle to measure the main diameter 2cm above the grafting point 7.1.2 Number of branches: Based on the grafting surface
Height of seedlings/
GB/T 9659--2008
Number of branches/
The first-level branches with a length of more than 15cm and above the main ten branches are counted. 7.1.3 Seedling height: measure from the top bud on the soil surface 7.1.4 Grafting point height: measure from the top to the middle of the grafting point. 7.1.5 Height: measure from the soil surface to the effective point of the 7.1.6 Scion joint curvature: measure the angle between the main ten-centre axis of the scion and the vertical extension line of the stock with an angle measuring device. 7.2 Inspection rules
7.2.1 After the seedlings are packaged and collected, random sampling method is adopted, and the diagonal intersection sampling method, cross sampling method and multi-point cross sampling method are adopted for thinning seedlings, and representative value plants are selected for inspection. 7.2.2 For batches with less than 10,000 plants (including 10,000 plants), 60 plants are sampled; when the number of test batches exceeds 10,000 plants, on the basis of sampling 60 plants for 10,000 plants, another 0.2% of the number of plants exceeding 10,000 plants is sampled. The sampling number is calculated as follows: 60 + [(number of seedlings in the test batch - 10,000) × 0.2%] (1) || tt || 7.2.3 The proportion of qualified single plants in the total number of sampled seedlings in a batch is the qualified rate of the batch. If the qualified rate is 295%, the batch of seedlings is considered qualified.
GB/T 9659—2008
8 Packaging, marking and transportation
8.1 Packaging
The seedlings are transported together with the complete original container. Large seedlings can be transplanted and planted with a group. If long-distance transportation is required, the branches and roots of bare-root seedlings need to be properly pruned, the roots are dipped in mud, and then wrapped with rice knots, and wrapped with perforated plastic film and tied tightly. Each package should not exceed 50 plants. Before transplanting, spray pesticides to kill important common diseases and insect pests. 8.2 Marking
Seedlings leaving the nursery need a seedling origin quarantine certificate and a quality inspection certificate (see Appendix A): If it is a virus, it should be accompanied by a certificate from a qualified testing agency and marked with a sign. Bare root seedlings should be packaged by variety, and double labels should be hung inside and outside the package, indicating the variety (spike/stock), seedling date, quality grade, quantity, seedling business unit, certificate number, etc. (see Appendix). Container seedlings should be labeled with varieties one by one, indicating the variety, stock, etc. 8.3 Logistic Transportation
When the transportation volume is large, the transport equipment should be equipped with ventilation tubes or racks and layers to keep the temperature in the center of the two piles at 25°C. During transportation, be careful to prevent heavy pressure and rain. After arriving at the destination, plant or transplant as soon as possible. Seedling raising unit
Plant efficiency
Inspection and certification unit (Yi Zhang)
Issuing date
Appendix A
(Normative Appendix
Citrus grafted seedling quality inspection certificate
Technical person in charge (signature)
Scion source
Note 1: This certificate is in duplicate, with one copy each for the seedling raising unit, seedling purchasing unit, and inspection unit. Note 2: The citrus grafted quality certificate is valid for the current year. Brick
Sowing period
Inspection person (signature)
Inspection date
GB/T9659-2008
Quality grade
Grafting period
Analysis month date
GB/T 9659—2008
Appendix B
(Normative Appendix)
Citrus seedling label
Citrus seedling
Art station name
With first unit
Qualification certificate number
From the date of issue
Note 1: The label is made of 150g kraft paper or plastic. Note 3: The hole of the paper label is edged with metal.
Unit:
(front)
Unit: Lr
(back)
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