T/QYPG 1-2020 Active Group standards

T/QYPG 1-2020 Quality requirements for dwarf fruit tree seedlings of Qianyang apples with rootstock

Publish Date: 2020-06-16 Implement Date: 2020-07-01 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/QYPG 1-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Forestry

ICS Name: Plant cultivation

Publish Date: 2020-06-16

Implement Date: 2020-07-01

Scope

Main technical content: This standard specifies the quality grade indicators, inspection, packaging, labeling, storage, and transportation requirements for dwarfing self-rooting grafted apple seedlings, and is applicable to the breeding and sales of dwarfing self-rooting grafted apple seedlings in their first and second years. The main content of the standard is to divide dwarfing self-rooting grafted apple seedlings into three grades from seven aspects, including roots, stems, and branching within the shaping zone. The main indicators for Grade 1 are: more than 10 lateral roots, lateral root base diameter of more than 0.25cm, lateral root length of more than 15cm, stem height of more than 160cm, stem diameter of more than 1.5cm, more than 12 branches, and branch length of ≥5cm. The main indicators for Grade 2 are: more than 8 lateral roots, lateral root base diameter of more than 0.2cm, lateral root length of more than 15cm, stem height of more than 140cm, stem diameter of more than 1.2cm, more than 9 branches, and branch length of ≥5cm. The main indicators for Grade 3 are: more than 5 lateral roots, lateral root base diameter of more than 0.2cm, lateral root length of more than 15cm, stem height of more than 120cm, stem diameter of more than 1cm, more than 6 branches, and branch length of ≥5cm.