Browsing Plant Pathology by Title
Now showing items 71-90 of 98
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Molecular Mapping of QTL for Genetic Transformation-Related Trait and CRISPR/Cas9-Mediated Gene Editing in Wheat
(North Dakota State University, 2022)Plant transformation is a valuable tool for gene characterization and crop improvement. However, wheat transformation is greatly impacted by genotype dependency for successful regeneration of the transgenic plants. For ... -
Movement and Accumulation of Candidatus Liberibacter Solanacearum in Potato Plants
(North Dakota State University, 2012)A new disease affecting potatoes was first detected in Mexico in 1993. Affected plants had aerial symptoms similar to those caused by potato purple top and psyllid yellows, but tubers had internal brown discoloration when ... -
Parasitic Fitness of SDHI-Sensitive and -Resistant Isolates of Alternaria Solani
(North Dakota State University, 2017)Early blight of potato (Solanum tuberosum L.) is caused by Alternaria solani Sorauer. The single-site mode of action chemistries of the succinate dehydrogenase inhibitors (SDHIs) and quinone outside inhibitors (QoIs) have ... -
Pathogenic Variation, Host Specialization and Aggressiveness in Helminthosporium Sativum
(North Dakota State University, 1984)Common root rot, caused by Cochliobolus sativus, is an important disease of spring wheat and barley in the northern Great Plains. While the disease has been widely studied, extensive systematic investigation of pathological ... -
Phenotypic Characterization of Leptosphaeria maculans Pathogenicity Groups Aggressiveness on Brassica napus
(North Dakota State University, 2015)One of the most destructive pathogens of canola (Brassica napus L.) is Leptosphaeria maculans (Desm.) Ces. & De Not., which causes blackleg disease. This fungus produces strains with different virulence profiles (pathogenicity ... -
Plant-Parasitic Nematodes in Field Pea and Potato and their Effect on Plant Growth and Yield
(North Dakota State University, 2018)In this study, surveys were conducted in pea and potato fields in North Dakota and Central Minnesota to investigate the incidence and abundance of plant-parasitic nematodes in these fields. Moreover, the effect of the pin ... -
Plant-Parasitic Nematodes on Corn (Zea mays L.) and Soybean (Glycine max L.) in North Dakota
(North Dakota State University, 2020)Four studies were conducted to investigate plant-parasitic nematodes (PPN) of corn and soybean in ND. The first study investigated the incidence and abundance of vermiform PPN in ND corn fields in 2015 and 2016. Samples ... -
Plant-Parasitic Nematodes on Sugarbeet in North Dakota and Minnesota
(North Dakota State University, 2019)Field surveys were conducted in the Red River Valley (RRV) of North Dakota and Minnesota during 2016 and 2017 to determine the incidence, abundance, and distribution of plant-parasitic nematodes (PPNs) on sugarbeet. ... -
Population Structure of Uromyces appendiculatus in North Dakota
(North Dakota State University, 2019)North Dakota is the lead producing state of common bean in the USA, accounting for 43% of national production. Bean rust is caused by the autoecious, macrocyclic fungus Uromyces appendiculatus (Pers.:Pers.). All pathogen ... -
Prevalence of Pathogenicity Groups of the Blackleg Species Complex on Canola in North Dakota
(North Dakota State University, 2011)North Dakota is the leading producer of canola (Brassica napus) in the United States. Blackleg, caused by two species of Leptosphaeria, L. maculans (Desm.) Ces & De Not and L. biglobosa, is an economically important disease ... -
Prevalence, Diversity, and Management of Goss’s Leaf Blight (Clavibacter nebraskensis) in North Dakota
(North Dakota State University, 2018)Goss’s wilt and leaf blight (GWLB) (Clavibacter nebraskensis) is a yield-limiting disease of corn (Zea mays L.). Research conducted in other corn growing states have indicated yield losses as severe as 60% on susceptible ... -
Resistance Screening and QTL Mapping in Wheat and Triticale Against Root-Lesion Nematode
(North Dakota State University, 2020)Root-lesion nematode (RLN, Pratylenchus neglectus) invades the roots of wheat and causes yield losses throughout the world. Genetic resistance is the most economical and effective means to manage RLNs. The objective of ... -
Resistance to Septoria Musiva in Hybrid Poplar
(North Dakota State University, 2014)Septoria leaf spot and stem canker, caused by the fungal pathogen Mycosphaerella populorum Thompson (Anamomorph = Septoria musiva Peck). An efficient greenhouse disease resistance screening is essential for the development ... -
Revisiting Management Practices for Diseases of Spring Barley in North Dakota
(North Dakota State University, 2018)Common barley diseases observed in North Dakota include net blotch, spot blotch, leaf and stripe rust, bacterial leaf streak, and Fusarium head blight. The first objective of this research was to determine the effect of ... -
Rhizoctonia Solani Damping-Off of Sugarbeet: Effect of Plant Growth Stage on Disease Severity and Management Using Penthiopyrad
(North Dakota State University, 2015)Rhizoctonia solani is the most damaging pathogen on sugarbeet (Beta vulgaris L.) in North Dakota and Minnesota. Research was conducted to evaluate penthiopyrad for controlling R. solani and determine when the plants are ... -
Scanning Electron Microscope Examination of Sugarbeet Flowers and Fruits Infected with Phoma Betae
(North Dakota State University, 1980)There are three natural openings in a mature sugarbeet fruit which serve as avenues of entry for microorganisms: 1) the basal pore which contains dried parenchyma and vascular tissue and is the point where the flower was ... -
Screening of Germplasm Accessions from the Brassica Species for Resistance against PG3 and PG4 Isolates of Blackleg
(North Dakota State University, 2011)Blackleg is a disease of canola and rapeseed cultivars that is caused by the fungus Leptosphaeria maculans (Desm.) Ces. & de Not., and it is by far the most destructive pathogen of canola in North America. In recent years, ... -
Seed to Seedling Transmission of Colletotrichum lindemuthianum in Dry Edible Pinto Bean
(North Dakota State University, 2015)Dry bean anthracnose, caused by Colletotrichum lindemuthianum, is a damaging disease that can cause significant reductions in seed quality and yield. The purpose of this study was to determine the races of C. lindemuthianum ... -
Sensitivity of Rhizoctonia Solani and Aphanomyces Cochlioides to Fungicides, and Fitness of Tetraconazole-Resistant Isolates of Cercospora Beticola after Exposure to Different Temperature Regimes
(North Dakota State University, 2015)North Dakota and Minnesota produce 55% of USA sugarbeet production. Diseases caused by Rhizoctonia solani, Aphanomyces cochlioides, and Cercospora beticola are the major diseases affecting sugarbeet production in North ... -
Sensitivity of Sclerotinia Sclerotiorum Isolates From North Central US to Azoxystrobin and Boscalid
(North Dakota State University, 2016)Azoxystrobin and boscalid are fungicides frequently used to manage diseases caused by Sclerotinia sclerotiorum (Lib.) de Bary in many broadleaf crops in North Central US. . Continued use of these compounds can induce ...