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Gewählte Master / Diploma Thesis:

Evelyn Scherer (2006): Anzuchtversuche von Trifolium alpinum (Alpenklee) für die Saatgutproduktion.
Master / Diploma Thesis, BOKU-Universität für Bodenkultur, pp 104. UB BOKU obvsg FullText

Data Source: ZID Abstracts
The use of indigenous species is a prerequisite for the achievement of long-term successful restoration of erosion areas above the timberline, which has been demonstrated by numerous authors. The present work focuses on the cultivation and seed propagation of Trifolium alpinum, because this topic involves many difficulties in practice. As a Leguminosae, Trifolium alpinum is able to fix N2 by means of root nodules, thus has positive effects on the amelioration of soil nutrition. Its long and strong taproot permits an effective stabilisation of the ground. Pot experiments were conducted at the Research Centre for Agriculture and Forestry Laimburg (South Tyrol, Italy) to cultivate Trifolium alpinum on diverse allochthonous substrates and to investigate the effect of inoculation with autochthonous soil, as well as the influence of rain and calcareous tap water on the growth of the plant. The pot experiment should additionally assess which field soil is best suited to cultivate Trifolium alpinum for a field experiment. Trifolium alpinum was found to produce the highest biomass in a commercial substrate and the application of a thin layer of autochthonous soil could upgrade the biomass production in the two field soil substrates used. Plants grown in absolute autochthonous soil produced very low biomass. The inoculum induced a rhizoidal infection. As regards the effect of different irrigation waters on the dry matter of the Trifolium alpinum plants, the tap water leads to a decrease in biomass in comparison to rain water. The field experiment is located in Prettau/Ahrntal (South Tyrol, Italy) at 1,600 m a. s. l. First Trifolium alpinum plants were cultivated in rootrainers for the first five month, with and without a layer of autochthonous soil, and afterwards they were planted out in the field with different row spacing. The scope was to find the optimal row space which allows a rapid closing by the plants to diminish weed growth. The results after three month revealed that no spacing was superior to others. Furthermore, the Inoculum did not upgrade the spatial plant growth. In comparison to the dispersion of Trifolium alpinum, the weed cover increased more strongly. The breeding in rootrainers using commercial substrate leads few plants to flower already in the first season. Thus a small quantity of seeds could be harvested. Germination tests demonstrated seed dormancy, but after scarification the majority was able to germinate. This study contributes new findings to the research of seed production of Trifolium alpinum. It is very likely that this kind of seeds will be produced in the near future.

Beurteilende(r): Florineth Florin

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