New Zealand Journal of Crop and Horticultural Science abstracts
Influence of host and pathogen factors on disease incidence resulting from
artificial inoculation of kiwifruit by Botrytis cinerea
K. WURMS*
P. LONG
Department of Plant Science
Massey University
Private Bag 11 222
Palmerston North, New Zealand
S. GANESH
Department of Statistics
Massey University
Private Bag 11 222
Palmerston North, New Zealand
* Present address: Département Phytologie, Laboratoire de
bio-contrôle, Pavillon de l'Envirotron, Université Laval,
Sainte-Foy, Qc, G1K 7P4, Canada.
email: kirstin.wurms@plg.ulaval.ca
Abstract The effects of various host and pathogen factors on
disease incidence of Botrytis cinerea (Persoon: Fries) in kiwifruit
(Actinidia deliciosa var. deliciosa `Hayward' (A.Chev.) C. F.
Liang et A. R. Ferguson) were studied in artificial inoculation trials. High
inoculum levels (>=25 000 spores/stem scar) and addition of yeast extract to
spore suspensions significantly increased infection. There was no effect of
fruit water potential on disease incidence, but total infection decreased when
fruits were harvested later in the season or exposed to a curing treatment
(6-24 h at 20deg.C).
Keywords Actinidia deliciosa; Botrytis cinerea;
artificial inoculation
H97-55
Received 11 November 1997; accepted 26 May 1998
PDF file of entire paper: medium quality (641K); (scanned from paper original: notes about this process)
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