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Rapid and Effective Germination Methods for Overcoming Seed Dormancy in Annual Canarygrass

Dep. of Plant Sciences and Crop Development Centre, Univ. of Saskatchewan, 51 Campus Dr., Saskatoon, SK, Canada S7N 5A8

View larger version (23K): [in a new window]   Fig. 1. Effect of duration of storage, before germination at 23°C for 14 d, on germination percentage in dormant, hulled, hand-dehulled, and mechanically dehulled seed grown at Kernen (KER) and Seed Farm (SF) in 2003. Bars represent standard errors to compare treatments within each sampling day. For non-dormant seed lots from KER and SF, germination percentages were 95% (P = 0.05) at 0 wk (data not shown).

View larger version (47K): [in a new window]   Fig. 2. Germination percentages at 14 d at 15, 20, 25, and 30°C without and with light (16/8 h dark/light) in dormant, hand dehulled (without and with hulls), and hulled seed grown at Kernen and the Seed Farm in 2003. Standard errors are represented by vertical bars. For non-dormant seed lots, germination percentages were 95% (P = 0.05) within 14 d of testing (data not shown), except for hulled samples incubated at 30°C with 8 h light (81% ± 5% germination at both locations).