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Collaborative project: Screening for resistant rootstocks to control pear decline in commercial fruit-growing - Subproject 2
Project
Project code: 2814201406
Contract period: 01.04.2008
- 31.01.2012
Budget: 325,946 Euro
Purpose of research: Experimental development
The scientific and technical basis for the in vitro propagation of more than 130 genotypes in over 40 species was established. 46 clones from 17 species could be propagated and rooted in vitro. All clones were acclimatised successfully in the greenhouse, a total of more than 7,000 plants. An in vitro long-term storage was established. The results represent a pool of knowledge and experience which will be available for the in vitro propagation of all Pyrus species. 80 in vitro propagated genotypes were experimentally inoculated and observed for symptoms and colonization for 2 years. In the 1st and 2nd, year phytoplasmas were detected in 12% and 17% of the trees, respectively. Foliar reddening and dwarfing occurred to various degree in both years. The distribution of positive plants within one group allowed a response assessment of the whole group. 13 genotypes complied with the criteria of a symptom-free infection combined with a good in vitro multiplication rate.
Keywords: Pear Decline
Section overview
Subjects
- Plant Breeding
- Crop Protection
- Arboriculture
Funding programme
Excutive institution
Institute for Plant Protection in Fruit Crops and Viticulture - Fruit Cops (JKI-OW)
