|IZVORNI ZNANSTVENI ČLANCI
|Orlić, S., Ocvirek, M.
|UDK 630* 232.1 001
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|UDK 630* 443. 001
|Fungus Sphaeropsis sapinea (Fr.) Dyko et Sutton on Pines on the North Adriatic Area pdf HR EN
|Summary: The health evaluation of pine plantations was done in the period from 1991 to 1994 on the North Adriatic area (Figure 1). It has revealed that Pinus brutia Ten. and Pinus halepensis Mill, were mainly in the good condition on the researched area. This was not the case with Pinus nigra Arn. On some localities (Figure 1) it was recorded significant dieback of the youngest soots, branches, the part of crowns and whole trees in the various age classes.
Laboratory analyses of the collected needles, shoots, branches and cones of mentioned pine species showed occurrence of some mycoses. Analyses revealed that Sphaeropsis sapinea (Fr.) Dyko et Sutton was the most frequent on the samples and also with significant injurious impact on the dieback of Austrian pine trees.
The obtained climatological data and soil productivity survey for the researched area propounded that the arid period in 1991 together with poor site conditions predisposed the Austrian pine trees to the Sphaeropsis sapinea attack on some localities in Istria region. Attack consequence was the dieback of pines in 1992. Austrian pine plantation on the island of Rab was planted on poor soil conditions area, and plantation has been also under the strong influence of the north wind and the salt from the sea. The mentioned abiotic agents were propounded as the predisposition conditions to the outbreak of Sphaeropsis sapinea.
Repeated collecting of samples on some pine dieback area in Istria region in 1994 confirmed still presence of the fungus in plantations.
Key words: phaeropsis sapinea; Pinus brutia; Pinus halepensis; Pinus nigra; dieback; the North Adriatic area; Croatia
|Pičman, D., Pentek, T.
|UDK 630* 383.001
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|Juretić, N., Mamula, D., Pleše, N.
|UDK 630* 444.001
|Plant Viruses in Soil and Water of some Forest Ecosystems in Croatia with Review of Viruses Found in Forest and Ornamental Woody Plants pdf HR EN
|UDK 630* 114:182.001
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|UDK 630* 641
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|UDK 630* 156
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