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Gewählte Master / Diploma Thesis:

Susanne Trittinger (2014): Evaluating root architectural and morphological traits of soybean with relevance for phosphorus acquisition.
Master / Diploma Thesis - Abteilung Pflanzenbau, BOKU-Universität für Bodenkultur, pp 64. UB BOKU obvsg

Data Source: ZID Abstracts
Phosphorus (P) is an essential macronutrient for plant growth and is involved in a number of metabolic processes. However, many soils are characterized by insufficient P availability, making P an important constraint to crop productivity. Especially farmers in developing countries face problems caused by reduced soil fertility and high mineral fertilizer prices. The identification of adapted genotypes that use soil P more efficiently is therefore considered as sustainable food production with reduced input. Soybean (Glycine max) is one of the most important crops in the world and represents a valuable source of oil and protein for human and animal diet. The objective of this work was to evaluate genetic variations in root architectural and morphological traits with relevance to P acquisition between different soybean genotypes. Soybean seedlings were grown in a pouch system under controlled conditions for two weeks. Digital images were taken periodical time intervals and root traits were analyzed using WinRHIZO Pro and OpenGelPhoto 2a. The results showed a great diversity in root characteristics between the genotypes. Significant variations were detected in basal root growth angle (52-73°), basal root number (7-15), root surface area (15-44 cm2), root diameter (0.39-0.82 cm), total root number (52-115), and total root length (96-262 cm). The enormous genetic variation in soybean root traits may provide a valuable source for future breeding programs aiming at developing P efficient crops.

Beurteilende(r): Kaul Hans-Peter
1.Mitwirkender: Vollmann Johann

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