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This article in AJ

  1. Vol. 105 No. 2, p. 546-554
     
    Received: Aug 16, 2012
    Published: February 15, 2013


    * Corresponding author(s): dean.spaner@ualberta.ca
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doi:10.2134/agronj2012.0314

A Sustainable Management Package for Triticale in the Western Canadian Prairies

  1. G. R. S. Colliera,
  2. B. L. Beresb,
  3. D. F. Salmonc,
  4. J. M. Nyachiroc,
  5. E. W. Borka and
  6. D. M. Spaner *a
  1. a Univ. of Alberta Dep. of Agricultural, Food, and Nutritional Science, 410 Ag/Forestry Building, Edmonton, AB, Canada T6G 2P5
    b Agriculture and Agri-Food Canada, Lethbridge Research Centre, 5403 1st Avenue South, Lethbridge, Alberta, Canada T1J 4B1
    c Alberta Agriculture and Food, Field Crop Development Centre, Lacombe, AB, Canada T4L 1W8 LRC

Abstract

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 Soft White 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. The 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. The triticale cultivars produced more grain than Soft White Spring wheat in five of seven environments; however, Soft White 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.

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