Performance of commercial maize hybrids under irrigation on the Darling Downs and the St. George irrigation area

Abstract

Twenty-one dent and two pop types of maize hybrids were grown under furrow irrigation in some or all of nine trials from the 1965-66 to the 1969-70 summer season. Q23, DS601, GM211, Q1280, GH134, GH128, Q692 and Q724 showed average performances above the trial mean yields. The recently introduced hybrids DeKalb 8O5A, Pioneer Q5OO and DeKalb XL45 were not as comprehensively tested but gave very promising performances. Lodging resistance was superior in these latter types. Days to 50% silking, lodging incidence, 1,000 grain weight and grain nitrogen data are presented.