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Determining the Feasibility of Early Seeding Canola in the Northern Great Plains

^a Central Agricultural Research Center, Montana State Univ., HC90 Box 20, Moccasin, MT 59462
^b Western Triangle Agric. Research Center, Montana State Univ., P.O. Box 974, Conrad, MT 59425
^c Dep. of Entomology, Montana State Univ., Bozeman, MT 59717
^d Northwestern Agric. Research Center, Montana State Univ., 4570 Montana 35, Kallispell, MT 59901

View larger version (46K): [in a new window]   Fig. 1. Precipitation (Precip) and minimum and maximum temperatures (Tmin and Tmax, respectively) for the Central Agricultural Research Center (CARC) and Western Triangle Agricultural Research Center (WTARC) in 2002, 2003, and 2004. The long-term average precipitation (LTA Precip) was calculated from 95- and 18-yr averages at CARC and WTARC, respectively.

View larger version (19K): [in a new window]   Fig. 2. Response of canola seed yield to seeding date at the Central Agricultural Research Center (CARC), Moccasin, MT from 2002 to 2004 and at the Western Triangle Agricultural Research Center (WTARC), Conrad, MT from 2003 to 2004. Error bars in the graphs represent ± 1 SE.

View larger version (21K): [in a new window]   Fig. 3. Response of canola seed yield to seeding rate at the Central Agricultural Research Center (CARC), Moccasin, MT from 2002 to 2004 and at the Western Triangle Agricultural Research Center (WTARC), Conrad, MT from 2003 to 2004. Error bars in the graphs represent ± 1 SE.

View larger version (19K): [in a new window]   Fig. 4. Response of canola oil content to seeding date at the Central Agricultural Research Center (CARC), Moccasin, MT from 2002 to 2004 and at the Western Triangle Agricultural Research Center (WTARC), Conrad, MT from 2003 to 2004. Error bars in the graphs represent ± 1 SE.

View larger version (24K): [in a new window]   Fig. 5. Oil content of two canola cultivars, DK223 and Hyola357, at the Central Agricultural Research Center (CARC), Moccasin, MT from 2002 to 2004 and at the Western Triangle Agricultural Research Center (WTARC), Conrad, MT from 2003 to 2004. Error bars in the graphs represent ± 1 SE.

View larger version (19K): [in a new window]   Fig. 6. Response of canola oil content to seeding rate at the Central Agricultural Research Center (CARC), Moccasin, MT from 2002 to 2004 and at the Western Triangle Agricultural Research Center (WTARC), Conrad, MT from 2003 to 2004. Error bars in the graphs represent ± 1 SE.