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标题：Susceptibility of Different Clone Groups of Austrian Pine to Mycosphaerella pini and Sphaeropsis sapinea
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作者：András KOLTAY
期刊名称：Acta Silvatica et Lignaria Hungarica
印刷版ISSN：1786-691X
电子版ISSN：1787-064X
出版年度：2007
卷号：SPECIAL
页码：47-51
出版社：Forestry Commission of the Hungarian Academy of Sciences
摘要：Necrosis of needles and shoots caused by various damaging agents, have emerged about fifteen or twenty years ago in the Hungarian Austrian pine stands. Damages caused mainly Sphaeropsis sapinea Dyko & Sutton, Mycosphaerella pini E. Rostrup (its anamorph Dothistroma septospora /Dorog./ Morlet), and Sclerophoma pithyophila (Corda) H.hn, and Cenangium ferruginosum Fr. ex Fr. Appearance and rapid spread of the fungi may surely be attributable to the anomalies in weather conditions. Since, the prevailing conditions, according to the long term predictions, have a fair chance of becoming permanent, it seems to be rational to select resistant or less susceptible species in producing propagation material of Austrian pine in the future. This brought up the investigation on the susceptibility of those clones, which are considered as basis for the elite propagation material of Austrian pine, to individual damaging agents. The investigations were carried on clone bank of Kisunyom. The results showed the susceptibility to the damaging agents considerable differences prevailed among the clone-groups, so it has been confirmed that in the process of genetic improvement when individuals are selected for cultivation, their susceptibility to the damaging agents should also be considered
关键词：Sphaeropsis sapinea ; Dothistroma septospora ; Pinus nigra ; Austrian pine ; infection ; investigation of clone ; resistance breeding