AAC Spike Canada Western Red Spring wheat

AAC Spike (PT4002), a hollow-stemmed, awned and high-yielding spring wheat ( Triticum aestivum L.) cultivar, was tested in the northern Canadian Prairies growing conditions. AAC Spike was 6% higher yielding than Carberry and yields similar to AAC Brandon in the Parkland Wheat registration trials (Parkland C) (2020–2022). AAC Spike matured 2 days earlier than Carberry. AAC Spike was 7 cm shorter than AAC Brandon and 8 cm shorter than Carberry. The test weight of AAC Spike was similar to AAC Brandon and 1000-kernel weight similar to Parata. The grain protein content of AAC Spike was 0.6% lower than Carberry. AAC Spike expressed moderately resistant reaction to Fusarium head blight ( Fusarium graminearum Schwabe) and common bunt ( Tilletia caries (DC) Tul. & C. Tul.). AAC Spike was resistant to prevalent races of leaf rust ( Puccinia triticina Erikss.), stem rust ( Puccinia graminis Pers. f. sp. tritici Eriks. & E. Henn) and stripe rust ( Puccinia striiformis Westend). AAC Spike was susceptible to orange wheat blossom midge ( Sitodiplosis mosellana Géhin). AAC Spike was classified by the Canadian Grain Commission within the Canada Western Red Spring wheat class and was registered as a cultivar with the Canadian Food Inspection Agency.