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Development of a resistance breeding method for the host pathogen system potato/ Rhizoctonia solani and the development of an application strategy for a fungal antagonist for the reduction of the soilborne and tuberborne inoculums

Description
Staff
Publications
Partners

2013 - 2016

Deficiencies in potato quality caused by Rhizoctonia solani frequently cause traders and the industry to refuse particular batches. The development of new control strategies is therefore urgent and necessary. The cultivation of resistant cultivars is an efficient strategy, but information on the resistance against R. solani in marketable cultivars/gene pools is scarce since adequate test methods have not been identified to date and this attribute accordingly has not been considered in the breeding process.

Cooperation Partners

NAME
Location
Country
Gemeinschaft zur Förderung der privaten deutschen Pflanzenzüchtung e.V. (GFP)
Bonn
Germany
Julius Kühn-Institut (JKI) - Institute for Plant Protection in Field Crops and Grassland
Braunschweig
Germany

Development of a resistance breeding method for the host pathogen system potato/Rhizoctonia solani and the development of an application strategy for a fungal antagonist for the reduction of the soilborne and tuberborne inoculums

The main goal of this project therefore is to develop a resistance breeding method which will allow the breeders to test for resistance against R. solani in marketable potato cultivars/gene pools. To achieve this, we will find characteristics of the potato which correlate with resistance characteristics of potatoes in the field. Based on these characteristics, breeders can test several cultivars for resistance against Rhizoctonia within a short time frame and consider these characteristics in future breeding programs.

Additionally, we will establish a non-chemical control method and develop an application strategy for a fungal antagonist that will be able to suppress the inoculum of R. solani in the field. In addition, we will test the efficiency of a tuber treatment after harvest to prevent the development of sclerotia on tubers during storage.

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