A sustainable management package for triticale in the western Canadian prairies
Collier, G.R.S., Beres, B.L., Salmon, D.F., Nyachiro, J.M., Bork, E.W., Spaner, D.M. (2013). A sustainable management package for triticale in the western Canadian prairies, 105(2), 546-554. http://dx.doi.org/10.2134/agronj2012.0314
Triticale (× Triticosecale Wittmack) is a minor cereal crop in Alberta which has recently garnered interest as a biofuel feedstock. Basic agronomic information is lacking for triticale cultivars released since 1990. Field experiments were initiated in 2010 and conducted for 2 yr at four sites in central and southern Alberta to compare the impact of cultivar selection, seeding date, and seeding rate on grain yield, grain quality, and other agronomic traits. Six triticale cultivars released between 1996 and 2011, and one SoftWhite Spring wheat cultivar (Triticum aestivum L.) were evaluated over two seeding dates; one before and one after 15% of the total seasonal growing degree days (GDD; base = 0°C) had elapsed. Th e cultivars were evaluated at seeding rates of 250, 375, and 500 seeds m-2. Older triticale cultivars had higher grain yields but lower grain quality than cultivars released after 2000. Th e triticale cultivars produced more grain than SoftWhite Spring wheat in five of seven environments; however, SoftWhite Spring wheat exhibited better grain quality than the triticales. Yield generally increased linearly with seeding rate but the highest return on investment was observed at 375 seeds m-2. Provided there was not an early frost, triticale seeded after 15% of the seasonal GDD had elapsed could produce grain yield similar to the earlier-seeded triticale. A sustainable management system for triticale includes modern cultivars, a seeding date that can accumulate 1750 GDD's before frost, and a sowing density of at least 375 seeds m-2. © 2013 by the American Society of Agronomy, 5585 Guilford Road, Madison, WI 53711. All rights reserved.
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