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Browsing University of Hertfordshire by Author "Crop Protection and Climate Change"
Now showing items 21-40 of 945
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Analysis of leaf appearance, leaf death and phoma leaf spot, caused by Leptosphaeria maculans, on oilseed rape (Brassica napus) cultivars
Powers, S. J.; Pirie, E. J.; Latunde-Dada, A. O.; Fitt, Bruce D.L. (2010)Development of phoma leaf spot (caused by Leptosphaeria maculans) on winter oilseed rape (canola, Brassica napus) was assessed in two experiments at Rothamsted in successive years (2003-04 and 2004-05 growing seasons). ... -
Analysis of ribosomal DNA sequences of Polymyxa species and related fungi and the development of genus- and species-specific PCR primers
Ward, Elaine; Adams, M. J. (1998-08)A region of about 800 bp of ribosomal DNA has been sequenced in 10 isolates of Polymyxa and one isolate each of Plasmodiophora brassicae and the chytrid Olpidium brassicae. This region consists of about 330 bp at the 3' ... -
Analysis Of Root-Specific And Pathogen-Induced Gene Expression In Sugar Beet
Mutasa-Gottgens, Euphemia (2002) -
Analysis of the RNA of Potato yellow vein virus : Evidence for a tripartite genome and conserved 3′-terminal structures among members of the genus Crinivirus
Livieratos, I.C.; Eliasco, E.; Müller, G.; Salazar, L.F.; Olsthoorn, R.C.L.; Pleij, C.W.A.; Coutts, Robert H.A. (2004-07-01)Double-stranded RNA preparations produced from potato plants graft-inoculated with a Peruvian isolate of Potato yellow vein virus (PYVV; genus Crinivirus, family Closteroviridae) contain five RNA species denoted RNA 1, RNA ... -
Analyzing haplodiploid inheritance of insecticide resistance in whitefly biotypes
Crowder, D. W.; Horowitz, A. R.; Tabashnik, B. E.; Dennehy, T. J.; Denholm, Ian; Gorman, K.; Carriere, Y. (2009-06)We developed new methods for analyzing inheritance of insecticide resistance in haplocliploid arthropods and applied them to elucidate resistance of the whitefly Bemisia tabaci (Gennadius) to an insect growth regulator, ... -
Anopheles stephensi Dox-A2 shares common ancestry with genes from distant groups of eukaryotes encoding a 26S proteasome subunit and is in a conserved gene cluster
Garvey, C. F.; Malcolm, Colin (2000-06)The sequence of a cloned Anopheles stephensi gene showed 72% inferred amino acid identity with Drosophila melanogaster Dox-A2 and 93% with its putative ortholog in Anopheles gambiae. Dox-A2 is the reported but herein ... -
Antifungal activity of Pseudomonas oryzihabitans a bacterium symbiotically associated with Steinernema abbasi towards Fusarium oxysporum and Rhizoctonia solani
Vagelas, I. K.; Gowen, S. R.; Wood, M.; Davies, Keith; Gravanis, F. T. (British Crop Protection Council, 2002)Pseudomonas oryzihabitans (=Flavimonas oryzihabitans), a symbiont of the entomopathogenic nematode Steinernema abbasi significantly inhibited the mycelium growth of Fusarium oxysporum and Rhizoctonia solani in vitro. ... -
Application of Geographic Information Systems to Identify the Oversummering Regions of Blumeria graminis f. sp. tritici in China
Li, B.; Cao, X.; Chen, L.; Zhou, Y.; Duan, Xia-yu; Luo, Yong; Fitt, Bruce D.L.; Xu, X.; Song, Y.; Wang, B.; Cao, S. (2013-09)Blumeria graminis f. sp. tritici, the pathogen that causes wheat powdery mildew, can oversummer as mycelia or conidia on leaves of volunteer wheat plants in cool mountainous areas in China. In this study, the regions in ... -
Application of molecular methods to the forecasting of severe stem canker epidemics in winter oilseed rape in the UK
Williams, R. H.; Fitt, Bruce D.L. (1998) -
Application of real-time and multiplex polymerase chain reaction assays to study leaf blotch epidemics in barley
Fountaine, J. A.; Shaw, M. W.; Napier, B.; Ward, Elaine; Fraaije, B. A. (2007-03)Leaf blotch, caused by Rhynchosporium secalis, was studied in a range of winter barley cultivars using a combination of traditional plant pathological techniques and newly developed multiplex and real-time polymerase chain ... -
Application of Risk Management Metrics for ochratoxin-A control in the coffee chain
Rubio-Lopez, Fernando; Taniwaki, Marta; Morris, Jonathan; Garcia-Cela, Esther (2023-12-31)Coffee is one of the most consumed beverages worldwide. Like other agricultural products, coffee is susceptible of colonization by mycotoxin-producing fungi and therefore, the presence of mycotoxins. These chemical hazards ... -
Arable crop disease control, climate change and food security
Fitt, Bruce D.L.; Evans, Neal; Gladders, Peter; Hughes, David; West, Jon S. (2013-08)Global food security is threatened by crop diseases that account for average yield losses of 16%. Climate change is exacerbating threats to food security in much of the world, emphasising the need to increase food production ... -
Arable crop disease control, climate change and food security
Fitt, Bruce D.L.; Evans, Neal; Gladders, P.; Hughes, David; Jeger, M.J.; Turner, J.A.; West, Jon S. (Association of Applied Biologists, 2011)Global food security is threatened by crop diseases that account for average yield losses of 16%. Climate change is exacerbating threats to food security in much of the world, emphasising the need to increase food production ... -
Are green islands red herrings? : Significance of green islands in plant interactions with pathogens and pests
Walters, Dale R.; McRoberts, Neil; Fitt, Bruce D.L. (2008)The term green island was first used to describe an area of living, green tissue surrounding a site of infection by an obligately biotrophic fungal pathogen, differentiated from neighbouring yellowing, senescent tissue. ... -
Ascospores as primary inoculum for epidemics of white leaf spot (Mycosphaerella capsellae) in winter oilseed rape in the UK
Inman, A.J.; Fitt, Bruce D.L.; Todd, A.D.; Evans, R.L. (1999-06)In the UK, conidia of Pseudocercosporella capsellae, the anamorph of Mycosphaerella capsellae, were observed on white leaf spot lesions on leaves throughout the growing season. Ascomata were not observed on lesions on ... -
Aspects of the biology and epidemiology of Pseudocercosporella capsellae, the cause of white leaf spot on oilseed rape
Inman, A.J.; Fitt, Bruce D.L.; Evans, R. L. (1991) -
Aspects on the attachment of Pasteuria penetrans on root-knot nematodes
Giannakou, I. O.; Gowen, Simon R.; Davies, Keith (2002)Variability in spore attachment of the bacterial parasite Pasteuria penetrans to second stage juveniles of Meloidogyne javanica and M. incognita populations originating from different locations were recorded. Culture of ... -
Aspergillus fumigatus mycovirus causes mild hypervirulent effect on pathogenicity when tested on Galleria mellonella
Ozkan, S.; Coutts, Robert H.A. (2015-03-31)Mycoviruses are a specific group of viruses that naturally infect and replicate in fungi. The importance of mycoviruses was revealed after their effects were identified not only in economically important fungi but also in ... -
Assessing availability and greenhouse gas emissions of lignocellulosic biomass feedstock supply – case study for a catchment in England
Qi, Aiming; Ni, Yuanzhi; N. Mwabonje, Onesmus; M. Richter, Goetz; Yeung, Kenny; Pate, Martin; Woods, Jeremy (2019-05-01)Feedstocks from lignocellulosic biomass (LCB) include crop residues and dedicated per¬ennial biomass crops. The latter are often considered superior in terms of climate change mitigation potential. Uncertainty remains over ... -
Assessing on-farm productivity of Miscanthus crops by combining soil mapping, yield modelling and remote sensing
Richter, Goetz M.; Agostini, Francesco; Barler, Alexandra; Costomiris, Delphine; Qi, Aiming (2016-02-29)Biomass from agricultural land is a key component of any sustainable bioenergy strategy, and 2nd generation, ligno-cellulosic feedstocks are part of the UK government policy to meet the target of reduced CO2 emission. ...