Journal of Food, Agriculture and Environment

Vol 10, Issue 1,2012
Online ISSN: 1459-0263
Print ISSN: 1459-0255

Determination of physical damage thresholds of strawberry leaves (Fragaria × ananassa cv. Honeoye)


Ahmet Zafer Makaraci 1*,  James A. Flore 2

Recieved Date: 2011-10-20, Accepted Date: 2012-01-09


Damage thresholds of strawberry plants (Fragaria×ananassa) were investigated by mechanical damage. Mechanical damage was applied by 10%, 20% and 30% of the leaf area of a fully expanded single leaf removal. Strawberry leaves that were mechanically damaged did not recover their photosynthetic capacity at any damage level. Chlorophyll fluorescence (Fv/Fm) values were not affected from the mechanical damage. Increasing damage levels decreased the ability of the strawberry leaf to use light and carbon dioxide in photosynthesis. Difference in stomatal conductance and transpiration rates were insignificant. Internal CO2 (Ci) levels were higher in damaged plants compared to the control plants.


Damage threshold, strawberry, photosynthesis, mechanical damage, chlorophyll fluorescence, Fragaria × ananassa

Journal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 1
Category: Agriculture
Pages: 376-380

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