Investigation on host-parasite interaction between the stem nematode Ditylenchus dipsaci and sugar beet Beta vulgaris and their importance for development of alternative integrated management strategies [Elektronische Ressource] / Volker Kühnhold. Landwirtschaftliche Fakultät

Institut für Nutzpflanzenwissenschaft und Ressourcenschutz (INRES) Investigation on host-parasite interaction between the stem nematode Ditylenchus dipsaci and sugar beet Beta vulgaris and their importance for development of alternative integrated management strategies Inaugural – Dissertation zur Erlangung des Grades Doktor der Agrarwissenschaften (Dr. agr.) Der Hohen Landwirtschaftlichen Fakultät Der Rheinischen Friedrich-Wilhelms-Universität zu Bonn Vorgelegt am 16.07.2011 Von Volker Kühnhold aus Köln Referent: Prof. Dr. R. A Sikora Koref.D. Dr. G. Welp Tag der mündlichen Prüfung: 30.09.2011 Erscheinungsjahr: 2011 Abstract Investigation on host-parasite interaction between the stem nematode Ditylenchus dipsaci and sugar beet Beta vulgaris and their importance for development of alternative integrated management strategies The re-occurrence and rapid spread of D. dipaci in German sugar beet production areas enhanced the necessity for a holistic management strategy of this pathogen to secure sustainable sugar production. To evaluate sources of resistance or tolerance in available germplasms a standard screening protocol was developed. The inoculation of 14 days old sugar beet seedlings between the leaf axils proved to be the most efficient infestation procedure.