The diploma thesis deals with the effect of artificial mycorrhization on the growth and on the development of the root system of Picea abies (L.) Karst. cultures. The thesis was conducted at 2 sites under the administration of the Vojenské lesy a statky ČR, s.p., division Lipník nad Bečvou, that were afforested in 2012 and 2013. Every site was divided into 2 parts of the same area. One of the parts was afforested with the use of the mycorrhizal preparation Ectovit and the fertiliser Vápnitý dolomit. The effect of preparations on the above-ground part of trees was evaluated on 210 sample trees at every site. The effect of preparations on roots was evaluated on 10 sample trees. Following parameters were assessed for every sample: the height of the tree; the thickness of root collar; height increments; length of needles; the damage caused by biotic or abiotic factors; number, thickness and length of both horizontal and vertical roots; the number of fine roots; the weight of dry mass of both fine and coarse roots; branching index of fine roots and the specific length of fine roots. Unfortunately, one site had to be omitted from further evaluation of effects on the roots due to the high occurrence of root deformations. The measurement was carried out in June and July 2016. As regards the above-ground part, the research has not proved significant positive effect of preparations. The differences in height increments speak in some cases for, however in some cases against the application of preparations. The lengths of needles were in some years shorter at the sites with preparations and thus may indicate even negative effects of preparations. Regarding root system, a difference was found out only in the case of branching index. No difference was identified for other parameters of the trees on the check and on the test site. Some parameters (e.g. height increments), however, might be considerably influenced by the damage caused by wildlife or by other factors (e.g. heavily stony soil in some parts of the sites). Last but not least, the thesis formulates recommendations regarding the future use of preparations within the company VLS Lipník nad Bečvou.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:431232 |
| Date | January 2017 |
| Creators | Vlk, Jiří |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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