T/NAASS 141-2025 Active Group standards

T/NAASS 141-2025 Code of practice for cucumber side-grafted seedlings

Publish Date: 2025-11-06 Implement Date: 2025-12-05 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/NAASS 141-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Technical management

ICS Name: Plant cultivation

Publish Date: 2025-11-06

Implement Date: 2025-12-05

Scope

This document specifies the technical content of cucumber grafting seedling cultivation, including terminology and definitions, environmental conditions, substrate and tray selection, sowing, seedling management, grafting, post-grafting management, disease and pest control, and commercial seedling standards. This document is applicable to the intensive and factory-scale cucumber grafting seedling cultivation in Ningxia. 3 Terminology and Definitions The following terms and definitions apply to this document. 3.1 Single cotyledon side grafting for cucumber This is a grafting method where one cotyledon and its associated growth point of the cucumber rootstock are removed, while the other cotyledon is retained. The lower embryonic axis of the cucumber scion is slanted to form a matching inclined surface with the rootstock, and the cut ends of the rootstock and scion are aligned and adhered together. 4 Environmental Conditions The construction and equipment of the seedling nursery comply with the requirements of NY/T 2442. The irrigation water quality meets the requirements of GB 5084. 5 Substrate and Tray Selection 5.1 Substrate The substrate complies with the requirements of NY/T 2118. 5.2 Tray The scion uses a 98-hole tray, and the rootstock uses a 50-hole tray. 6 Sowing 6.1 Varieties The scion should be selected from cucumber varieties with good disease resistance, high yield, good marketability, and adaptability. The rootstock should be selected from melon varieties with good disease resistance, stress tolerance, strong compatibility, and adaptability. The seed quality should comply with the requirements of GB 16715.1. 6.2 Sowing Period The sowing period should be determined based on the transplanting period. In summer and autumn, the seedling age is 20–25 days; in winter and spring, it is 30–35 days. The scion should be sown 2 days earlier than the rootstock. 6.3 Seed Treatment 6.3.1 Seed Disinfection Perform accordin