T/GDOAA 0024-2023 Abolished Group standards

T/GDOAA 0024-2023 The production technical regulations for hawthorn with branches in exchange for fruit

Publish Date: 2023-08-30 Implement Date: 2023-09-01 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/GDOAA 0024-2023

Standard Type: Group standards

Standard Status: Abolished

is_force_gb: no

CCS Name: -

ICS Name: Geology, meteorology, and hydrology

Publish Date: 2023-08-30

Implement Date: 2023-09-01

Scope

Scope: This document specifies the terms and definitions of the "branch-for-fruit" production technology for hawthorn, cultivated varieties, the cultivation of auxiliary branches, and supporting measures for branch-for-fruit production. This document is applicable to the "branch-for-fruit" production and management techniques for hawthorn. Main technical content: 1. The fruiting characteristics of hawthorn trees: Nutrient branches (generally about 100cm long) grown during the year form flower buds at the tips and bloom and bear fruit the following year. The traditional pruning technique involves repeatedly pinching back auxiliary branches that grow during the spring to form short branches with thinner diameters, resulting in the outward displacement of the fruiting zone and low flower bud quality. The following year, only about ten flowers bloom and bear fruit, with fruit diameters of only 2.8-3.2cm, typically 30-40 fruits per catty, and a commercial rate of 40%. Alternatively, the second-year nutrient branches are pruned to form short branches the following year and bear fruit in poor ventilation and lighting conditions. 2. After 30 years of practice and experimentation, it was found that if the nutrient branches grown during the year are not pinched back, all one-year nutrient branches are pruned back to three axillary leaves in early August, with a length of about 25cm. This results in an 85% flower bud formation rate. Due to the thicker fruiting mother branches and higher flower bud quality, the flower bud set rate reaches about 30, with branch diameters above 0.8cm allowing two flower buds per branch, and below 0.8cm allowing one flower bud per branch. The fruit diameters increase by 0.5-0.8cm compared to traditional pruning, with approximately 22 fruits per catty, and a commercial rate increased from 40% to 95%, doubling the economic benefits. The new pruning technique forms strong flower buds that bear fruit the following year in good ventilation and lighti