| Abstract
| - The partitioning of organic compounds between air andfoliage and between water and foliage is of considerableenvironmental interest. The purpose of this work is toshow that partitioning into the cuticular matrix of oneparticular species can be satisfactorily modeled by generalequations we have previously developed and, hence,that the same general equations could be used to modelpartitioning into other plant materials of the same or differentspecies. The general equations are linear free energyrelationships that employ descriptors for polarity/polarizability,hydrogen bond acidity and basicity, dispersive effects,and volume. They have been applied to the partition of 62very varied organic compounds between cuticularmatrix of the tomato fruit, Lycopersicon esculentum, andeither air (MXa) or water (MXw). Values of log MXa coveringa range of 12.4 log units are correlated with a standarddeviation of 0.232 log unit, and values of log MXw coveringa range of 7.6 log unit are correlated with an SD of0.236 log unit. Possibilities are discussed for the predictionof new air−plant cuticular matrix and water−plantcuticular matrix partition values on the basis of the equationsdeveloped.
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