Magistro darbe tiriama ekologinių veiksnių įtaka pirmamečių slyvaičių skiepų kokybei. Darbo objektas - bandyme tirtos slyvų veislės 'Viktorija', 'Kometa' ir 'Early Gold', skiepytos į kaukazinę slyvą (Prunus divaricata). Darbo tikslas – palyginti pirmamečių slyvaičių skiepų kokybę auginant juos pastovioje vietoje ir persodinus. Darbo metodai. Dvifaktorinis bandymas atliktas 2008 m. LŽŪU medelyne, karbonatingame, giliau glėjiškame išplautžemyje. Vykdant tyrimą buvo analizuojama skiepų augimo dinamika, nustatytas skiepų aukštis, kamienėlių skersmuo, lapų masė, lapų plotas. Taip pat nustatyta kokybiškų skiepų išeiga. Darbo rezultatai. Tyrimo duomenų analizė parodė, kad intensyviausio slyvaičių skiepų augimo laikotarpio trukmė priklauso nuo veislių ir auginimo sistemų. Aukščiausi per metus užaugo nepersodinti 'Viktorija' medeliai, storiausi – nepersodinti 'Early Gold' skiepai. Didžiausias lapų plotas ir lapų masė buvo nepersodintų 'Kometa' slyvaičių. Kokybiškų pirmamečių medelių kiekį lemia tiek auginimo sistema, tiek ir individualus veislių augumas. / Master work analyse Environmental factors influence on the quality of the vaccine of first year's plum trees. Work object - trial investigated various plum species 'Viktorija', 'Kometa' and 'Early Gold', which were vaccinated into the Caucasian plum (Prunus divaricata). Work purpose - of the test was to compare the effect quality of vaccine for first year's plum trees, which grow in a constant place and for the ones after transplantation. Work method - Two-factor test was conducted in 2008 LŽŪU nursery gardens, albi epihypogleyic luvisols, which are rich in carbonates. During the test, dynamics of growth of the vaccine, the height of the vaccine, shaft diameter, leaf weight and leaf area were all measured. In addition to that, high-quality vaccines yield was also calculated. Work analysis - the analysis of test's data showed that the length of the most intense growth period of vaccine depends on the species and cropping systems. The highest growth level in a year's period was achieved by 'Viktorija' seedlings and the thickest were 'Early Gold' vaccines. 'Kometa' had the biggest leaf area and mass. So in conclusion – the growth quality of first year's trees depends on the cropping system as much as the individual growth properties of the species.

Currently there are about 3 700 contaminated sites that used to host commercial- and nursery gardens.  Mainly due to the extensive use of pesticides at these sites a great part of them now pose a significant environmental- and health risk. This study aimed to compare how Swedish municipalities has worked with the clean-up of contaminated soil at these kinds of sites. This has been done by sending out a questionnaire to the municipality’s environmental management office. This study’s results have indicated that the most used remediation technology was excavation. The methods relative speed and simplicity was the usual motivation behind this choice. The results also showed that mostly Swedish guideline values where used in the remediation process. Furthermore, the most common remediation goal at these sites was that the remediated soil would live up to the Swedish environmental protection agency’s guideline values for sensitive land usage. The most common answer regarding why their remediation goal was set was because of the planned or present land usage at the site. The most common method for initial risk assessment was the comparison of contamination levels from soil samples to relevant guideline values or based on previous risk classification. Finally, the results showed that in most cases where remedial action had been taken, contaminants had been left in the soil. The most common reason for this was because the remaining pollution levels did not exceed the guideline values. For the most part, Swedish municipalities have a coherent way of working with these problems.