T/CZBXBZ 039-2025 Active Group standards

T/CZBXBZ 039-2025 Technical specification for propagation of Caryopteris altanifolia

Publish Date: 2025-09-28 Implement Date: 2025-09-28 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CZBXBZ 039-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Technical management

ICS Name: Plant cultivation

Publish Date: 2025-09-28

Implement Date: 2025-09-28

Scope

This document defines the terms and definitions of Chaozhou Hibiscus, and stipulates the site requirements for the breeding of Chaozhou Hibiscus, cuttings propagation, tissue culture, nursery and maintenance, and file management. This document is applicable to the breeding technology of Chaozhou Hibiscus. 4. Site Requirements 4.1 Environmental Conditions 4.1.1 Sufficient sunlight, good ventilation, and an air humidity of 60% to 90% are ideal. 4.1.2 The nursery facilities should be equipped with shading nets (50% to 70% shading rate) and spray systems. 4.2 Planting Soil 4.2.1 Artificially Prepared Granite Gneiss Red Soil: Peat Moss: Pearlite = 8:1:1, with a pH of 4.5 to 6.0, and subject to disinfection treatment. 4.2.2 Natural Nursery Beds Granite Gneiss Red Soil: Humic Soil: River Sand = 8:1:1, with a pH of 4.5 to 6.0. 5. Cuttings Propagation 5.1 Sapling Collection Select healthy mother plants with ≥3 branches, and collect cuttings that do not exceed 50% of the total number of branches. The cuttings should be 4 cm to 8 cm in length, with ≥3 nodes, and the top 2 to 6 leaves should be removed, while all lower leaves should be discarded. The base of the cuttings should be obliquely cut at a 45° angle. 5.2 Hormone Treatment Soak the base of the cuttings in a 500 mg/L indolebutyric acid (IBA) solution for 10 seconds and dry them. 5.3 Substrate Vermiculite, with a particle size of 1 mm to 3 mm. 5.4 Cuttings Management 5.4.1 Disinfect and sterilize the cuttings substrate in advance, and ensure that the substrate is loose and moist before planting. 5.4.2 Gently insert the cuttings directly into the substrate, compact it, and plant it 2 cm to 4 cm deep. 5.4.3 Density: 10 cm × 10 cm spacing between rows and columns is appropriate. 5.4.4 Environment: A temperature of 20°C to 28°C is ideal, with a humidity of ≥80%, and light intensity of 5000 lux to 8000 lux. Avoid direct sunlight. 5.4.5 Water Management: Water the cuttings immediat