T/JSF 027-2025 Baohua Yulan Grafting and Seedling Raising Technical Specifications

Scope

Scope: This document specifies the technical requirements for the preparation of nursery beds, rootstock cultivation, grafting, post-grafting management, nursery release, and file management for grafting and seedling production of Yulania zenii (W. C. Cheng) D. L. Fu. This document is applicable to the grafting and seedling production of Yulania zenii. Main technical content: The "Technical Regulations for Grafting and Seedling Production of Yulania zenii" is a group standard issued by the Jiangsu Provincial Forestry Society. The standard details the entire process of grafting and seedling production of Yulania zenii, including nursery preparation, rootstock cultivation, grafting operations, post-grafting management, nursery release standards, and file management. Among them, the rootstock uses naturally grown container seedlings of Magnolia alba, with a planting row spacing of 30 cm × 40 cm; for grafting, healthy one-year-old branches of the mother tree are selected as scions, and the bud-embedded grafting method with the woody part is used. After grafting, timely bud removal, erecting stakes and supporting branches, and reasonable watering and fertilization are required, along with disease and pest control. The nursery seedlings are required to have a stem height of ≥100 cm, a ground diameter of ≥3 cm, and a well-developed root system. The standard provides a scientific basis for the efficient reproduction of Yulania zenii.

Development Information

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