T/GZSX 057-2019 Active Group standards

T/GZSX 057-2019: Quality of Hawthorn Seedlings

T/GZSX 057-2019

Publish Date: 2019-12-30 Implement Date: 2020-01-10 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/GZSX 057-2019

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Agriculture, forestry

ICS Name: Plant cultivation

Publish Date: 2019-12-30

Implement Date: 2020-01-10

Scope

Main technical content: Seedling type Seedling age Class I seedlings Class II seedlings Test methods: Diameter (cm) Branch number (pieces) ≥5 cm Class I Seedling height (cm) Diameter (cm) Branch number (pieces) ≥5 cm Class I Seedling height (cm) Number of lateral roots Real seedlings 1-0 or 2-0 ≥0.25 cm 2 5 35–45 cm 0.20–0.25 cm 1–2 4–5 cm 35–45 cm Visual method, vernier caliper, tape measure Cutting seedlings 1-0 or 2-0 ≥0.50 cm 3 6 35–45 cm 0.30–0.40 cm 2–3 4–6 cm 35–45 cm Visual method, vernier caliper, tape measure Composite indicators No pests or diseases, fresh seedlings with normal color, fully lignified, no mechanical damage, strong main and lateral branches Visual method