T/WLCIA 5-2025 Active Group standards

T/WLCIA 5-2025 Picking up and pruning regulations for Wusheng Dayajan's shaping techniques

Publish Date: 2025-01-02 Implement Date: 2025-01-02 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/WLCIA 5-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Terminology (principles and coordination and cooperation)

Publish Date: 2025-01-02

Implement Date: 2025-01-02

Scope

Scope: This document specifies the terms and definitions of pruning and shaping for Wusheng Daya citrus, as well as pruning techniques and methods at different growth stages. This document is applicable to the technical management of pruning and shaping for Wusheng Daya citrus. Main technical content: - Basic principles: Pruning is generally carried out after fruit harvest and before spring bud sprouting. Winter pruning focuses on thinning and shortening. Mainly removing dead branches, diseased/insect-infested branches, dense branches, and cross branches; shortening cross branches, horizontal branches, weak branches, and declining fruiting branches in row spacing; pruning fruiting branches and mother branches; removing bare branches and drooping branches. - Summer pruning focuses on tipping, shortening, and thinning. Supplemented by bud removal and thinning. - Main pruning techniques: - Removing dead branches, diseased/insect-infested branches, dense branches, and useless adventitious branches. - Shortening nutritive branches, fruiting branches, branches with dropped flowers/fruits, and useful adventitious branches. - Shortening weak branches. - Removing sporadic summer shoots. - Summer pruning should not be excessive (heavy sawing or severe shortening), depending on tree age, growth vigor, fruiting status, and pruning objectives. Young trees with normal growth or high-yielding fruiting trees require lighter pruning. - Young tree shaping focuses on cultivating the main trunk and framework branches, typically adopting natural round-top or open-top shapes. - Main branches: 3–5 branches, each with 2–3 sub-branches. - Dense branches and useless adventitious branches should be removed. - Nutritive branches, fruiting branches, and branches with dropped flowers/fruits should be shortened appropriately. - Weak branches should be shortened. - Bud removal should be performed after tipping. - Young trees planted within