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International Journal of Agronomy
Volume 2012 (2012), Article ID 269878, 5 pages
http://dx.doi.org/10.1155/2012/269878
Research Article

Effect of the Soil pH on the Alkaloid Content of Lupinus angustifolius

Institute for Resistance Research and Stress Tolerance, Julius Kühn-Institut (JKI), Federal Research Centre for Cultivated Plants, 18190 Sanitz, Germany

Received 4 June 2012; Accepted 26 October 2012

Academic Editor: O. Mario Aguilar

Copyright © 2012 Gisela Jansen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Field studies were conducted in growing seasons 2004, 2005, and 2010 to investigate the effect of different soil pH values on the alkaloid content in seeds of Lupinus angustifolius. Two-year experiments with eleven cultivars were carried out in acid soils with an average of (Mecklenburg-Western Pomerania) and on calcareous soils with an average pH of 7.1 (Bavaria), respectively. In addition, in 2010, eight cultivars were grown in field experiments in soils with pH values varying between and . In all experiments conducted on soils with a higher pH ( and ), a significantly lower alkaloid content was detected in all Lupinus angustifolius cultivars than on soils with a lower pH ( and ). Results clearly show that the alkaloid content is significantly influenced by the soil pH but genotypic differences regarding the reaction to different pH values in the soil were observed.