The Economic Impact of Wheat Breeding in the Prairie Provinces1

Environmental flows in support of sustainable intensification of agriculture in the Letaba River Basin, South Africa

“…More than 85% of the rainfall occurs within the summer months (October-March). After a dry winter, rainfall increases rapidly only from November and December, before steadily rising during January and February and then rapidly declining from March onward (Schultz 1965). The peak of the rainy season coincides with the maximum frequency of occurrence in the annual cycle of tropical disturbances that control the summer rainfall season to a large degree (Tyson and Preston-Whyte 2000).…”