1984 Volume 31 Issue 9 Pages 565-569
To clarify the mechanism of the failure to remove calyxes, the torn strawberry was observed. In the fruit from which calyx was easily removed, marked differences in the tissue structure as well as the chemical composition were found between the pith and the part just under calyx. There were three categories of strawberries which failed to remove the calyx by single hand harvesting: fruit with only sepal, fruit with calyx and pedical and malformed fruit with calyx. The first category would be caused by the occurrence of the hollow between calyx and pulp. In the fruit of the second category, pedicel-detaching force was lower than calyx-detaching force. In the malformed fruit, insufficient changes in the tissue structure and chemical composition were found.
