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Gewählte Master / Diploma Thesis:

Irene Stockner (2009): Einfluss von Sorte und Stickstoffdüngung bei Winterweizen (Triticum aestivum L.) für die Ethanolgewinnung.
Master / Diploma Thesis - Institut für Pflanzenbau und Pflanzenzüchtung (IPP), BOKU-Universität für Bodenkultur, pp 96. UB BOKU obvsg

Data Source: ZID Abstracts
The aim of this study was an evaluation of the influence of different varieties of winter-wheat and different options of nitrogen fertilizer application on yield and parameters important for ethanol production. Results are based on 2 field trials (duration 1 year) conducted under different climatic conditions (Atzenbrugg and Reichersberg). The trial design followed a split plot design with 5 varieties, 6 different levels of nitrogen fertilizer application and 4 replications. As expected, variety had a significant influence on growth and development of winter-wheat in different locations. Nitrogen application option (amount and distribution) influenced the infestation with mildew and HTR as well as stem length and lodging tendency. High amounts of nitrogen fertilizer enhanced straw weight which represents a limiting factor for grain yield. Harvest index was found to be independent from nitrogen fertilisation level and seems to be an adequate index. The parameters productive spike number /m2 and grain number/spike as well as thousand kernel weight (hectolitre weight respectively) were influenced positively by a higher amount of nitrogen applied. As expected, protein content of the grain increased with an increasing amount of nitrogen fertilizer. A prerequisite for a high ethanol yield is a large amount of starch in the grain. If winter-wheat is intended to be used for utilization as an energy source, a third application of nitrogen fertilizer, commonly done by practitioners, is not to be recommended.

Beurteilende(r): Liebhard Peter

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