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A series of experiments was conducted under glasshouse and hydroponic conditions to determine the specific window period for common scab disease infection in potato tubers. The study was performed in a glasshouse system where separate tubers from the root zone were inoculated at different intervals during plant growth along with a novel hydroponic system to inoculate individual tubers at specific times of development growth allowing non-destructive observations of common scab symptoms developing. The window of tuber susceptibility to common scab disease infection was shown to vary with the season or conditions under which the plants were grown. Different internodes on tubers were found susceptible to infection at different times during tuber development. Basal internodes, which are the first sections of the tuber to expand, were susceptible to infection in the beginning of tuber development, whereas apical internodes only became susceptible later in tuber growth when the basal internodes were no longer susceptible.

Item Type:	Refereed Article
Keywords:	common scab, tuber physiology, hydroponic system, infection window, potato
Research Division:	Agricultural and Veterinary Sciences
Research Group:	Horticultural Production
Research Field:	Horticultural Crop Protection (Pests, Diseases and Weeds)
Objective Division:	Plant Production and Plant Primary Products
Objective Group:	Horticultural Crops
Objective Field:	Vegetables
UTAS Author:	Tegg, RS (Dr Robert Tegg)
UTAS Author:	Wilson, CR (Professor Calum Wilson)
ID Code:	116772
Year Published:	2017
Deposited By:	Tasmanian Institute of Agriculture
Deposited On:	2017-05-18
Last Modified:	2018-05-22
Downloads:	23 View Download Statistics