New Zealand Journal of Crop and Horticultural Science
abstracts
Short communication
Covering of peach (Prunus persica) flowers for early spring frost protection
P. Drogoudi
C. Tsipouridis
T. thomidis
T. Terzis
National Agriculture Research Foundation (NAGREF)
Pomology Institute
R.S. Naoussas 38
PC 59200 Greece
email: thomi-1@otenet.gr
Abstract The aim of this study was to investigate the covering of
peach (Prunus persica) flowers by single and double layered polyethylene
foil bag, foam (starch-based foam), thin vermiculite, perlite, or sawdust as
methods of protection from early spring frost. Compared with uncovered flowers,
the results showed that using a double bag or foam significantly reduced the
percentage of damaged flowers caused by low temperatures. In contrast, no significant
differences in damaged flowers were found between flowers covered with thin
vermiculite, perlite, a single bag, or sawdust compared with those uncovered
(control). The existence of the ice nucleation bacterium Pseudomonas syringae pv. syringae in
the peach flowers of four cultivars was also investigated. It was not found
in any peach flowers of ‘ArmKing’, ‘Silver King’, ‘May
Grand’, or ‘Andross’ examined by ELISA.
Keywords covering; early spring frost; peach; protection
New Zealand Journal of Crop and Horticultural Science, 2006, Vol. 34:
51–53
0014–0671/06/3401–0051 © The Royal
Society of New Zealand 2006
H05075; Online publication date 14 February 2006Received 8 July 2005;
accepted 28 November 2005
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