NDLI: Variation in severity of target spot, caused by aulographina eucalypti, in a eucalypt species and provenance trial in Victoria

Content Provider	Springer Nature Link
Author	Carnegie, Angus J. Keane, Philip J.
Copyright Year	2003
Abstract	Target spot caused by the fungus Aulographina eucalypti was assessed from spring 1990 to summer 1991 on 44 provenances of 14 Eucalyptus species to determine the variation in susceptibility to the pathogen. A disease assessment scale for target spot was developed specifically for this study based on the development of lesions caused by A. eucalypti and the proportion of leaf area affected. Significant variation was observed among the 44 provenances in both spring and summer, with provenances from E. globulus (all provenances except Eden), E. nitens, E. cypellocarpa, E. oreades, E. sieberi and E. viminalis scoring the highest for target spot. Provenances from E. quadrangulata, E. saligna, E. botryoides and E. elata all scored low for target spot, as did E. globulus provenance Eden. Variation with in species for E. botryoides, E. globulus, E. nitens, E. saligna and E. viminalis was also significant. In general, variation between provenances with in species was much less than variation between species. Severity of target spot on E. globutus (also assessed in winter 1990) increased from winter to spring and again from spring to summer. The pathogen was recorded on all 14 species in the trial, including two new host records. This paper also reports new host record s from field collect ions by the first author over the past 12 years, and from examination of herbarium specimens, adding 35 new host records for A. eucalypti and five new host records for Australia.
Starting Page	393
Ending Page	402
Page Count	10
File Format	PDF
ISSN	08153191
Journal	Australasian Plant Pathology
Volume Number	32
Issue Number	3
e-ISSN	14486032
Language	English
Publisher	Springer Netherlands
Publisher Date	2003-01-01
Publisher Institution	Australasian Plant Pathology Society
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Plant Pathology Plant Sciences Agriculture Entomology Ecology
Content Type	Text
Resource Type	Article
Subject	Plant Science

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