Logo of the Information System for Agriculture and Food Research

Information System for Agriculture and Food Research

Information platform of the Federal and State Governments

Collaborative project: Selection of lupine genotypes with resistance against aphids and its dependency from plant alkaloid content and development temperature – Subproject 1

Project


Project code: 2814501110
Contract period: 01.09.2010 - 31.08.2013
Budget: 170,384 Euro
Purpose of research: Experimental development

'The breeding of sweet lupin increases the usability of this culture. The reduced alkaloid content is commonly connected with an increased susceptibility to different pests. It is predictable that with the expansion of the sweet lupin cultivation area and promoted by the expected climatic changes different aphid species will rapidly adapt to the low alkaloid lupins and will develop into economic important pests of this culture. Aim of the project is the selection of narrow-leafed genotypes with low alkaloid content of the seeds, but with for aphid resistance satisfactory alkaloid content in the leaves and stalks during the plant growing period. The resistance of different lupin accessions of the narrow-leafed lupin and other species against potentially dangerous aphid species (M. albifrons, A. pisum, M. persicae, A. craccivora, A. fabae) will be evaluated in the greenhouse or climatic chamber. The spectrum and concentration of the alkaloids and of soluble sugars in different plant organs and, for selected genotypes, the influence of the ambient temperature will be analysed by GC and HPLC. The inheritance of the alkaloid content will be studied by hybridisation analysis. Field evaluation and estimation of yield reduction by aphid infestation will be made for selected genotypes. As a result, lupin genotypes will be provided for breeding that have both sufficient aphid resistance and low alkaloid concentration of the seeds, and thus allow breeders to develop resistant, yield stable cultivars without or with low insecticide input in cultivation. This objective will be facilitated by the progress made in alkaloid analysis. The results of the hybridisation analysis are a base for the development of molecular resistance markers.'

show more show less

Subjects

Advanced Search