New Zealand Journal of Crop and Horticultural Science abstracts

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Fungi associated with fruit rots of Actinidia chinensis ‘Hort16A’ in New Zealand

M. A. Manning
X. Meier
T. L. Olsen

The Horticulture and Food Research
 Institute of New Zealand Ltd
Mt Albert Research Centre
Private Bag 92 169
Auckland, New Zealand
email: mmanning@hortresearch.co.nz

P. R. Johnston

Landcare Research
Private Bag 92 170
Auckland, New Zealand

Abstract  A new yellow fleshed kiwifruit Actinidia chinensis var. chinensis ‘Hort16A’grown commercially in New Zealand is susceptible to infection by several fungi. The symptoms are mainly apparent after a period in coolstorage although preharvest symptoms do occur. Botryosphaeria dothidea, Cryptosporiopsis sp., Diaporthe spp., Cylindrocarpon cf. candidum, Phoma exigua, and Botrytis cinerea have most commonly been isolated from a range of symptoms on fruit including side, distal end and stem end rots, and fungal pitting. In addition, wounds caused by postharvest fruit handling can become infected. During trials to establish the best methods of postharvest handling and storage, identifications of fungi associated with fruit rots were made. This paper outlines the observations of several years of study on diseases of ‘Hort16A’ kiwifruit and describes the symptoms and the fungi associated with them.

Keywords  Actinidia chinensis var. chinensis ‘Hort16A’; kiwifruit; fungal diseases; Botrytis; Botryosphaeria; Cryptosporiopsis; Diaporthe; Phoma; Cylindrocarpon

H03077 Received 13 August 2003; accepted 29 August 2003; Online publication date 3 November 2003
New Zealand Journal of Crop and Horticultural Science, 2003, Vol. 31: 315-324
0014-0671/03/3104-0315 $7.00 © The Royal Society of New Zealand 2003

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