ABSTRACT

Weathering damage was studied in standing and windrowed wheat in both plot-scale and field-scale trials. The plot trials were conducted with a range of dormant and nondormant red- and white-grained wheats. Falling number was markedly lower in windrowed than in standing material, particularly in nondormant genotypes. These differences were readily apparent with total rainfall as low as 49 mm during the weathering period. Similar results were recorded in field-scale trials. The difference in weathering susceptibility between standing and windrowed material was attributed to higher moisture contents and slower drying following rains in windrowed compared to standing crops.