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Browsing by Author "Hall, A. M."
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Effects of temperature and rainfall on date of release of ascospores of Leptosphaeria maculans (phoma stem canker) from winter oilseed rape (Brassica napus) debris in the UK
Huang, Y. J.; Liu, Z.; West, Jon S.; Todd, A. D.; Hall, A. M.; Fitt, Bruce D.L. (2007)Data from a controlled environment experiment investigating effects of temperature on maturation of Leptosphaeria maculans pseudothecia were used to derive equations describing the times until 30% or 50% of pseudothecia ... -
Effects of temperature on ascospore germination and penetration of oilseed rape (Brassica napus) leaves by A- or B-group Leptosphaeria maculans (phoma stem canker)
Huang, Y. J.; Toscano-Underwood, C.; Fitt, Bruce D.L.; Hu, X. J.; Hall, A. M. (2003-04)Ascospores of both A-group and B-group Leptosphaeria maculans germinated at temperatures from 5 to 20degreesC on leaves of oilseed rape. Germination of ascospores of both groups started 2 h after inoculation and percentage ... -
Effects of temperature on maturation of pseudothecia of Leptosphaeria maculans and L-biglobosa on oilseed rape stem debris
Toscano-Underwood, C.; Huang, Yongju; Fitt, Bruce D.L.; Hall, A. M. (2003-12)Effects of temperature on maturation of pseudothecia of Leptosphaeria maculans and L. biglobosa, closely related species which coexist on UK oilseed rape, were investigated. Stages in pseudothecial maturation on naturally ... -
Survival of A-group and B-group Leptosphaeria maculans (phoma stem canker) ascospores in air and mycelium on oilseed rape stem debris
Huang, Yongju; Fitt, Bruce D.L.; Hall, A. M. (2003-12)Mycelium of Leptosphaeria maculans survived on oilseed rape stem base debris buried in sand for 2, 4, 6, 8, 10 or 12 months and produced pseudothecia after subsequent exposure on the surface of the ground under natural ...