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dc.contributor.authorInman, A.J.
dc.contributor.authorFitt, Bruce D.L.
dc.contributor.authorWelham, S.J.
dc.contributor.authorEvans, R. L.
dc.contributor.authorMurray, D.
dc.identifier.citationInman , A J , Fitt , B D L , Welham , S J , Evans , R L & Murray , D 1997 , ' Effects of temperature, cultivar and isolate on the incubation period of white leaf spot (Mycosphaerella capsellae) on oilseed rape (Brassica napus) ' , Annals of Applied Biology , vol. 130 , no. 2 , pp. 239-253 .
dc.identifier.otherPURE: 1406855
dc.identifier.otherPURE UUID: f9d12f8d-7d5e-4eff-ad8b-8afee033dbbc
dc.identifier.otherScopus: 0030886848
dc.description.abstractWhen leaves of oilseed rape (cv. Cobra) were inoculated with conidial suspensions of Mycosphaerella capsellae (white leaf spot) and incubated in controlled environments, the lag period from inoculation to the appearance of the first lesions decreased, and the total number of lesions produced increased, as temperature increased from 5 degrees C to 20 degrees C, although differences between 15 degrees C and 20 degrees C were small. With incubation period estimated as the time from inoculation until 5%, 50% or 95% of the lesions were produced, there was a linear relationship between 1/(incubation period in days) and temperature over the range 5 degrees C to 20 degrees C, from which values at intermediate temperatures could be estimated. Summed mean daily temperatures from inoculation to the production of 5% of the lesions were estimated as 115-130 degree-days in the controlled environment experiments at 5 degrees C to 20 degrees C. When pods or leaves of plants in oilseed rape crops (cv. Cobra or cv. Libravo) were inoculated with conidial suspensions of M. capsellae on five occasions from January to October, with variable temperatures during the incubation period, degree-days until the first appearance of lesions were in the range 115-230. The numbers of white leaf spot lesions cm(-2) which developed on inoculated leaves differed greatly between nine oilseed rape cultivars, with most on cv. Tapidor and fewest on cv. Libravo, but the incubation period differed little between cultivars. Similarly, the number of lesions which developed differed between four M. capsellae isolates from different regions but the incubation period did not.en
dc.relation.ispartofAnnals of Applied Biology
dc.subjectMycosphaerella capsellae
dc.subjectPseudocercosporella capsellae
dc.subjectwhite leaf spot
dc.subjectoilseed rape
dc.subjectincubation period
dc.titleEffects of temperature, cultivar and isolate on the incubation period of white leaf spot (Mycosphaerella capsellae) on oilseed rape (Brassica napus)en
dc.contributor.institutionSchool of Life and Medical Sciences
dc.contributor.institutionDepartment of Human and Environmental Sciences
dc.contributor.institutionHealth & Human Sciences Research Institute
dc.contributor.institutionAgriculture, Veterinary and Food Sciences
dc.contributor.institutionGeography, Environment and Agriculture
dc.contributor.institutionCrop and Environmental Protection
dc.description.statusPeer reviewed
rioxxterms.typeJournal Article/Review

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