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 The loss was heavy,   Assessing the Damage

 but would be hard to   difficult to measure. The first visible indication of dam-
 The damage caused by the most recent event is still
 figure out the exact   age, one that has been widely observed, is burnt leaves

 numbers until August   and their subsequent fall. However after the second frost,
 many plants will need to be replanted if they are less
 than three or four years old and old trees will be pruned.
 or September.   The loss was heavy  but would be hard to figure out the
 exact numbers until August or September.
 Younger crops less than four years old are gen-
 erally more affected by the cold, as their thinner
 branches, roots, and trunks are more vulnerable.
 Another factor is that younger plants have a less dense
 canopy, which favors the entry of cold air and reduc-
 es heat storage the night before the frost.
 The cold can cause the formation of microcrys-
 tals throughout the plant, but the leaves are the most
 exposed part of the plant and contain a significant
 amount of water, which means they end up freezing
 more easily.
 The formation of ice and the contraction of
 protoplasm are the causes of irreversible damage
 to membranes and other cellular components, and
 thus prevent the normal reestablishment of the
 plant cell metabolism. This causes cell dehydration
 and cell disruption.


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