|Table of Contents|

Effects of Different Apple Fruiting Locations on Fruit Quality

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年02
Page:
51-56
Research Field:
Publishing date:

Info

Title:
Effects of Different Apple Fruiting Locations on Fruit Quality
Author(s):
WANG Nannan; SUN Haoqi; LIU Weijie; MA Chunhui
(College of Horticulture，Qingdao Agricultural University，Qingdao,Shandong 266109)
Keywords:
apple; fruiting locations; fruiting branch type; fruit quality
PACS:
-
DOI:
10.11937/bfyy.20191900
Abstract:
Taking ‘Yanfu 3’ apple as the test material, the single fruit quality, sugar and acid content and fruit color of the upper, middle and lower fruits, the inner and outer fruits of the crown, the lateral branches with different branch ages and different types of fruit bearing branches were compared. The effects of fruit position and branch orientation on fruit quality were studied, so as to explore the culture methods of optimizing tree shape and fruiting branch, and provide technical reference for apple production.The results showed that for the vertical direction of the crown，the single fruit weight of the upper fruits was lower than that of the middle and lower fruits，while the internal quality and color of the upper fruits were better than those of the middle and lower fruits.There was little difference in fruit quality in the horizontal direction of the crown.The fruits of biennial branches were larger than those of triennial branches in vertical and transverse diameters.The fruit size of downward branches and horizontal branches was better than that of upright branches，and the fruiting rate of downward branches was 5.4%，which was significantly higher than that of horizontal branches and upright branches;the fruits of short branches were better than those of medium and long branches in fruit size and sugar content.Based on the above results，it can be concluded that the fruit bearing position，branch age，branch orientation and fruit branch type have important effects on fruit quality.Therefore，during the training and pruning process of apple tree and bearing branches，it was needed to pay attention to the balance between upper crown branches and growth vigour，pruning and regeneration control of middle and lower branches，and retaining young and stable fruiting branches，which was one of the key technical measures for high-quality apple production.

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Last Update: 2020-02-23