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Browsing University of Hertfordshire by Author "Stonard, J. F."
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Asymptomatic infection of winter and spring barley by Rhynchosporium secalis: effects and implications for epidemiology and host resistance
Atkins, Simon D.; Stonard, J. F.; Fraaije, B. A.; Lucas, J. A.; Fitt, Bruce D.L.; Newton, A. C. (ICARDA, 2010) -
Determining frequencies of avirulent alleles in airborne inoculum of Leptosphaeria maculans using molecular assays
Van de Wouw, A. P.; Stonard, J. F.; Atkins, Simon D.; Howlett, B. J.; West, Jon S.; Fitt, Bruce D.L. (2009)Control of blackleg (phoma stem canker) disease relies on crop management, fungicides and breeding for disease resistance. Proteins encoded by these resistance genes recognize avirulence (Avr) gene products in the fungus ... -
Determining frequencies of avirulent alleles in airborne Leptosphaeria maculans inoculum using quantitative PCR
Van de Wouw, A. P.; Stonard, J. F.; Howlett, B. J.; West, Jon S.; Fitt, Bruce D.L.; Atkins, S. D. (2010-10)Phoma stem canker (blackleg disease) of Brassica napus (oilseed rape, canola) is caused by the fungus Leptosphaeria maculans. Frequencies of avirulent alleles for loci where virulence can be associated with gene deletion ... -
Effect of climate on the proportions of Leptosphaeria maculans and L. biglobosa in phoma stem cankers on oilseed rape in England
Stonard, J. F.; Marchant, B. P.; Latunde-Dada, A. O.; Liu, Z.; Evans, Neal; Gladders, P.; Eckert, M. R.; Fitt, Bruce D.L. (Association of Applied Biologists, 2008) -
Effects of fungicide on growth of Leptosphaeria maculans and L. biglobosa in relation to development of phoma stem canker on oilseed rape (Brassica napus)
Huang, Y. J.; Hood, J. R.; Eckert, M. R.; Stonard, J. F.; Cools, H. J.; King, G. J.; Rossall, S.; Ashworth, M.; Fitt, Bruce D.L. (2011-08)Controlled-environment and field experiments were done to investigate effects of the fungicide Punch C (flusilazole plus carbendazim) on growth of Leptosphaeria maculans and L. biglobosa in oilseed rape. In controlled-environment ... -
Geographic variation in severity of phoma stem canker and Leptosphaeria maculans/L. biglobosa populations on UK winter oilseed rape (Brassica napus)
Stonard, J. F.; Latunde-Dada, A. O.; Huang, Yongju; West, Jon S.; Evans, N.; Fitt, Bruce D.L. (2010-01)Phoma stem canker, caused by Leptosphaeria maculans and L. biglobosa, is the most important disease of oilseed rape in Europe. Differences between L. maculans and L. biglobosa in their life-cycles enable the two species ... -
Geostatistical analysis of the distribution of Leptosphaeria species causing phoma stem canker on winter oilseed rape (Brassica napus) in England
Stonard, J. F.; Marchant, B. P.; Latunde-Dada, A. O.; Liu, Z.; Evans, Neal; Gladders, P.; Eckert, M. R.; Fitt, Bruce D.L. (2010-02)In June/July 2001, 2002, 2003 and 2006, regional variation in distribution of the pathogens Leptosphaeria maculans and L. biglobosa that are causally associated with phoma stem canker was surveyed on winter oilseed rape ... -
Preharvest qPCR diagnostics for better management of phoma stem canker and light leaf spot in oilseed rape [P17]
Latunde-Dada, A.O.; Downes, K.; Stonard, J. F.; Rogers, S. L.; West, Jon S.; Fitt, Bruce D.L. (2008) -
Quantifying DNA of Leptosphaeria maculans and Pyrenopeziza brassicae in oilseed rape tissues using QPCR
West, Jon S.; Rogers, S. L.; Latunde-Dada, A. O.; Pirie, E. J.; Stonard, J. F.; Huang, Yongju; Atkins, Simon D.; Fitt, Bruce D.L. (2008-08) -
Resistance of current and historical oilseed rape cultivars to phoma stem canker (Leptosphaeria maculans) and light leaf spot (Pyrenopeziza brassicae) in 2003/04, 2004/05 and 2005/06 growing seasons
Stonard, J. F.; Downes, K.; Pirie, E. J.; Fitt, Bruce D.L.; Evans, Neal; Latunde-Dada, A. O. (Association of Applied Biologists, 2007)