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Pěstování paulovnie (klon in vitro 112) v podmínkách ČR
Mácha, Michal
The aim of the presented work was to evaluate measured data in a Paulovnia plantation clone in vitro 112 grown in Strelice u Brna during the years of 2016 and 2017. This clone is a hybrid of Paulownia elongata × Paulownia fortunei. In 2016, 686 carefully marked plants were planted at the plot. The whole area of plantation was separated into the four sectors according to micro-relief of the terrain and use of a different drill diameter during the planting, what results has been reflected. Furthermore, three different approaches of protection against frost damage, specifically bandage of stem by non-woven fabric, cower of stem base part (root neck) by peat or soil, were applied. From the obtained results, during the first two years after planting, come out that root system of clone in vitro 112 is resistant to frost damage despite to applied cower of soil or peat, and that above part of plant can be protected by bandage, but it is necessary to investigate the best time for bandage removing as during this procedure flushing shoots were mostly broken. Bandage did not protect the tested plants against frost damage as well as all the rest tested protection approaches. On the average, the frost damaged about 72 % of plant height downward from the top. Total mortality of plants planted in 2016 was 4 % in the autumn of 2017, therefore we can deduce that mortality will be not limiting factor for Paulovnia growing in CR. Next considering parameter was an occurrence of stem forking (two or three sprouts per stem), which occurred only on 2 % of plants. When keeping the basic silvicultural technology during plantation and consequent tending of plantation, Paulownia clone in vitro 112 can grow under conditions of the Czech Republic.
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Růst a vitalita prostokořenného a krytokořenného sadebního materiálu při obnově stanovišť středních a vyšších poloh
Mácha, Michal
The aim of the thesis was to compare the growth of containerized and bare-rooted planting stock. For this purpose suitable location on set of forest types 5K, 5S, 6K, 6S, 7S and 7K were selected where sample plots were based. On each of these areas 200 pieces containerized and 200 pieces bare-rooted plants of European beech, Douglas fir and Norway spruce were planted. At the end of the growing season the height and diameter of root collar were measured with 100 plants of each variation, further the vitality and mortality were found out. At the same time the further parameters were investigated which led to clarifying the results. Subsequently the statistic evaluation was made according to the individual habitats and variants. The results show that the highest mortality was on areas located on sets of forest types 5K and 5S. It was also found out that a small height of the above-ground part of containerized planting stock of Douglas fir influences negatively the growing up just after planting. With European beech and Norway spruce no significant differences were found between containerized and bare-rooted planting stock.
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