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Effect of Root System Pruning on Root Activity and Canopy Characteristics of Apple Tree(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年20期
Page:
10-13
Research Field:
Publishing date:

Info

Title:
Effect of Root System Pruning on Root Activity and Canopy Characteristics of Apple Tree
Author(s):
ZHANG Wen; ZHU Xue-rong; LI Wei; LI Bing-zhi; FAN Chong-hui
College of Horticulture，Northwest Agriculture and Forestry University，Yangling，Shaanxi 712100
Keywords:
apple; root system pruning; root activity; canopy characteristics; leaf quality
PACS:
S 661.1
DOI:
-
Abstract:
Taking 18-year-old ‘Changfu II’ apple tree with dwarfing interstock as experimental material，the effect of root system pruning at different periods such as autumn，germination stage and post-anthesis on root activity，canopy characteristics and leaf quality were studied，in order to investigate suitable period of root system pruning.The results showed that root pruning improved root activity and leaf P and K content，decreased leaf area index and improved environment on light and wind，but reduced leaf quality.Root activity was higher in early growing season，mean leaf angle was small，and leaf quality was relatively high of autumn root pruning；germination stage root pruning was conducive to decrease leaf area index，increase light transmittance and root activity was higher in middle and late growing season.Comprehensive analysis showed that autumn and germination stage root pruning were more suitable for improving root activity and canopy characteristics.

References:

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Memo

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Last Update: 2014-08-26