|Table of Contents|

Effects of Girdling on Branch Growth and Flower Bud Differentiation of ‘Ascentec’ Apple

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年5
Page:
24-29
Research Field:
Publishing date:

Info

Title:
Effects of Girdling on Branch Growth and Flower Bud Differentiation of ‘Ascentec’ Apple
Author(s):
WANG HuanhuanWANG JiuzhaoJIANG JiyuanCHEN Qiling
(Institute of Forestry and Horticulture,Xinjiang Academy of Agricultural and Reclamation Science/Xinjiang Production & Constructioncorp Key Laboratory of Korla Fragrant Pear Germplasm Innovation and Quality Improvement and Efficiency Increment,Shihezi,Xinjiang 832000)
Keywords:
applegirdling processinglateral branch growthflower bud differentiationprincipal component analysis
PACS:
S 661.1
DOI:
10.11937/bfyy.20233442
Abstract:
Taking four-year-old ‘Ascentec’ apple saplings as experimental materials,the effects of different girdling methods on apple tree height,trunk thickness,lateral branch length,lateral branch thickness,number of fruiting branches,and number of flower buds in the following year were studied using different girdling intervals and degrees,in order to provide reference for rapid cultivation of apple spindle shaped tree shapes.The results showed that the closer to the trunk and lateral branches of the girdling,the stronger the promoting effect on tree height.After 2 weeks of girdling,the best effect of girdling was at 10 cm away from the main stem,followed by 15 cm away from the main stem,and the worst effect was at 5 cm away from the main stem.One week and two weeks of girdling could promote tree height,trunk thickness,number of fruiting branches,ratio of middle and long branches and flower bud differentiation,and inhibit the growth of lateral branch length.The third week of girdling had negative effect.The ranking results after principal component analysis showed that the treatment of 2-week circum ferential incision at 10 cm and 5 cm away from the trunk was ranked 1st and 2nd,respectively,while the treatment of 3-week circumferential incision at 10 cm and 15 cm away from the trunk was ranked 9th and 10th,respectively.In conclusion,2 weeks of girdling at the lateral branch 10 cm away from the main stem had the best effect on controlling branch growth and promoting flower bud differentiation.

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Last Update: 2024-03-28