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首页> 外文期刊>Scandinavian Journal of Forest Research >Higher resistance of the offspring of Scots pine trees resulting from natural regeneration in old foci of Heterobasidion annosum root rot.
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Higher resistance of the offspring of Scots pine trees resulting from natural regeneration in old foci of Heterobasidion annosum root rot.

机译：天然异源异臭根腐烂的自然再生导致苏格兰松树后代的较高抗性。

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摘要

Heterobasidion annosum (Fr.) Bref. is a fungal pathogen causing annosum root rot - one of the most economically important diseases in coniferous stands. The major aim of this study was to compare the resistance of the offspring of Scots pine trees (Pinus sylvestris L.) from seed orchards and the offspring of trees that were naturally reproduced in old foci of the disease. In experiments conducted in vitro, we used 960 seedlings which were grown from seeds collected from 60 trees in 6 old foci of the disease and 640 seedlings grown from seeds collected in 4 seed orchards. The offspring of trees from seed orchards after inoculation with H. annosum had nearly twofold higher mortality rate than the seedlings developed from the seeds collected in old foci of the disease. This suggests that the offspring of self-sown trees in old foci of the disease has a greater, genetically conditioned resistance to annosum root rot.Digital Object Identifier http://dx.doi.org/10.1080/02827581.2012.685748
机译：异戊二烯酮（神父）是引起无名氏根腐病的真菌病原体-针叶林中最经济的重要疾病之一。这项研究的主要目的是比较来自种子园的苏格兰松树后代（Pinus sylvestris L.）的抵抗力和在该疾病的旧病灶中自然繁殖的树后代的抵抗力。在体外实验中，我们使用了960株幼苗，它们是从该病的6个旧病灶中从60棵树中收集的种子中生长出来的，而640株幼苗是从在4个种子园中收集的种子中长出来的。接种H. annosum后，种子园中树木的后代死亡率比该病的旧病原体中收集的种子发育出的幼苗高出近两倍。这表明在该疾病的旧病原中自种的树木的后代对圆角无根腐病具有更大的遗传条件抗性。数字对象标识符http://dx.doi.org/10.1080/02827581.2012.685748

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