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Term originating from the Latin for adaptation. In viticulture, the term is used for the suitability of rootstocks in certain soil types. Special attention is paid to lime and drought tolerance. Poor adaptation leads to growth disorders and reduced performance. Waterlogging leads to chlorosis in all rootstocks, because a lack of oxygen in the soil leads to the death of the roots and thus to a general deficiency. See also under graft affinity.

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