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Germination at various temperature regimes of non-treated and of manually scarified seeds of I. lacunosa: (A) 2005C1 and 2005C2; (B) 2006C2; (C) 2006C1, 2006C3 and 2006C4. Different upper-case letters indicate significant differences between treatments within same temperature regimes and different lower-case letters significant differences between temperature regimes within the same treatment. Bars are +1 s.e.
