Population Structure of Pythium ultimum from Greenhouse Floral Crops in Michigan
نویسندگان
چکیده
منابع مشابه
Population Structure of Pythium irregulare, P. ultimum, and P. sylvaticum in Forest Nursery Soils of Oregon and Washington.
Pythium species are important soilborne pathogens occurring in the forest nursery industry of the Pacific Northwest. However, little is known about their genetic diversity or population structure and it is suspected that isolates are moved among forest nurseries on seedling stock and shared field equipment. In order to address these concerns, a total of 115 isolates of three Pythium species (P....
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Banker plants with Aphidius colemani Viereck were tested in greenhouses in Massachusetts and New York for control of cotton aphid Aphis gossypii Glover, and green peach aphid Myzus persicae (Sulzer) on 2 spring flower crops, pansies ( Viola tricolor hortensis ) and Marguerite daisies ( Argyranthemum hybrid). Banker plants consisted of pots of barley plants infested with the bird cherry-oat aphi...
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Composts are known for their suppressive properties toward many different seed- and root-infecting pathogens and diseases. Although disease and pathogen suppression induced by composts is believed to be mediated by microbial activities, the nature of the microbial species and processes responsible for suppressiveness remain unknown. We demonstrated previously that seed-colonizing microbial cons...
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seed rot caused by pythium ultimum is an important disease of safflower in iran and other countries. therefore, finding the genetic sources of resistance and releasing of resistant cultivar is considered as important objective by safflower breeders. this disease will spread when air humidity and the moisture in the soil are sufficiently prepared and this situation occurs exactly in the time of ...
متن کاملPythium sulcatum and P. ultimum as causal agents of cavity spot disease of carrots in Egypt
1Department of Biology, Faculty of Science, United Arab Emirates University, Al-Ain, 17551, United Arab Emirates; 2Department of Microbiology, Faculty of Science, University of Ain Shams, Cairo, 11566, Egypt; 3School of Biological Sciences and Biotechnology, Division of Science and Engineering, Murdoch University, Murdoch, W.A., 6150, Australia (e-mail: [email protected]); 4Soil Science an...
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ژورنال
عنوان ژورنال: Plant Disease
سال: 2019
ISSN: 0191-2917,1943-7692
DOI: 10.1094/pdis-03-18-0394-re