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搜索结果: 1-9 共查到农学 Dieback相关记录9条 . 查询时间(0.252 秒)
The paper analyses the growth, structure, production and soil chemistry of different tree species stands 20 years after allochthonous spruce dieback. The experiment was carried out at lower altitudes ...
The extent and temporal pattern of crown damage (attributed to Hymenoscyphus pseudoalbidus) in even-aged stands of Fraxinus excelsior in relation to bud flushing phenotype, stand density, and season...
Leaf blight symptoms were observed on potted box plants (Buxus sempervirens cv. Suffruticosa and B. microphylla) in a nursery in South Moravia in August 2010. These symptoms were suggestive of box b...
The causal agent of ash dieback, the hyphomycete Chalara fraxinea, was isolated from a Fraxinus excelsior cv. Pendula tree, in the Arboretum Křtiny between Křtiny and Jedovnice in Drahany Hi...
The condition was evaluated of tissues of declining young spruce stands in selected localities of the Orlické hory Mts. It refers to stands occurring in top parts affected by an air pollution disaster...
120 root systems and trunks of 20 years old birch trees and 60 root systems and trunks of 15 years old birch trees affected by defoliation and with no visual symptoms of damage were analyzed in the ai...
In the course of recent years, various cases of Austrian pine dieback of all age classes have occurred in a number of localities. At all localities, Sphaeropsis shoot – killing of pine caused by Sphae...
The invasive pathogen Phytophthora ramorum is the cause of 'sudden oak death', a dieback and mortality of more than one million live-oak and tanoak trees along 1500 km of near-coastal native forest in...
Ecosystems in Mediterranean climate regions are projected to undergo considerable changes as a result of shifting climate, including from extreme drought and heat events. A severe and sudden dieback e...

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