GB11767-2003

Seedling of tea plant

茶树种苗

GB 11767-2003 — действующий обязательный национальный стандарт Китая: Seedling of tea plant. Отрасль: Пищевая. Тема: Безопасность продукции. Дата вступления в силу: 1 дек. 2003 г..

Применимость зависит от продукции, схемы сертификации, уведомлений компетентных органов и переходных правил. Закажите перевод или проверьте источник, прежде чем использовать эту запись в решениях по соответствию.

Обзор требований

Этот обзор пока доступен только на английском языке.

Область применения

This standard applies to the cuttings and seedlings of clonal varieties of large-leaf and medium/small-leaf tea plants (*Camellia sinensis*). It is specifically designed for the grading indicators and inspection methods of clonal tea plant seedlings used in cultivation. It does not cover sexual reproduction varieties, as these were removed from the previous version.

Технические требования

The standard specifies the quality grading principles for tea plant cuttings and seedlings. For cuttings, grading is based on variety purity, utilization rate, and thickness. For seedlings, grading relies on variety purity, seedling age, height, stem diameter, and the number of lateral roots. The standard classifies both cuttings and seedlings into two grades (Grade I and Grade II), with anything below Grade II considered unqualified. Strict adherence to these grading parameters is mandatory for market compliance. It also outlines requirements for the cutting orchard, including soil structure, pH levels, and pest control prior to cutting collection.

Методы испытаний

Inspection methods include visual and physical assessments. Variety purity is determined by examining the main characteristics of each seedling. Cutting quality is assessed by measuring the utilization rate, length, and thickness using scales and calipers. Seedling height and stem diameter are measured with rulers and vernier calipers. The standard also defines specific random sampling ratios based on the total quantity of cuttings or seedlings for batch inspection.

Частые вопросы

What products are regulated under GB 11767-2003?

It regulates clonal cuttings and seedlings of large-leaf and medium/small-leaf tea plants (*Camellia sinensis*) used for cultivation.

Are there any updates from the previous version of GB 11767?

Yes, GB 11767-2003 replaces GB 11767-1989. The main update is the removal of content related to sexual reproduction varieties to meet current demands for clonal variety standardization.

What are the key grading parameters for tea plant seedlings?

Seedlings are graded based on variety purity, seedling age, height, stem diameter, and the number of lateral roots.

The summary above provides a high-level overview of GB 11767-2003. To ensure complete compliance for your tea plant products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 11767-2003 today to access all detailed parameters, tables, and testing procedures.

Подсказки по применимости

Тип: Продукция
CCS: B21
ICS: 65.020.20
Компетентное ведомство: Ministry of Agriculture and Rural Affairs
Технический комитет: National Technical Committee on Crop Seeds of Standardization Administration of China

Связи

Заменяет:GB 11767-1989