MEASURED AIRBORNE CONCENTRATION AND DEPOSITION RATE OF MAIZE POLLEN (ZEA MAYS L.) DOWNWIND OF AN EXPERIMENTAL FIELD

摘要

There has been increasing interest recently in dispersion of maize pollen in the environment. One interesting approach that has been developed consists in statistical models calibrated with measured contamination of a target field from a genetically traceable source field (Lavigne ef al., 1998). However this approach is limited to the environmental conditions encountered during the experiment. An alternative approach consists in developing process-based models, such as presented in Aylor ef al. (2001). However, there are few measurements of pollen airborne concentration to validate such models (Raynor, 1972). In this study we present experimental measurements of airborne concentration and deposition downwind of a maize field, together with standardmicrometeorological measurements.