Following information: rotation and cropping frequency of individual sites; applications of pesticides throughout the production of the crop (including pre-sowing or pre-planting treatments) partial sterilization of substrate and soil fumigants; Cultural details: sowing rates and dates of sowing, planting and other operations, applications of fertilizers (organic and inorganic) during preparation and growth of the crop; roguing stages and dates with identity of responsible staff, details of off-types and percentage removed or selected plants retained; observations on effective isolation and seed yield.