Table 2.

Effects of a cold stratification (5 °C) period on germination percentages of C. temulum seeds at different temperatures in light and darkness during 2 weeks.

	Incubation temperature in light				Incubation temperature in darkness
Weeks at 5 °C	10 °C	23 °C	15/6 °C	20/10 °C	10 °C	23 °C	15/6 °C	20/10 °C
0	0·0 ± 0·0	0·0 ± 0·0	0·0 ± 0·0	0·0 ± 0·0	0·0 ± 0·0	0·0 ± 0·0	0·0 ± 0·0	0·0 ± 0·0
4	14·0 ± 1·2	9·3 ± 1·8	6·0 ± 2·0	6·0 ± 2·3	8·7 ± 2·4	0·0 ± 0·0	6·0 ± 3·1	4·0 ± 2·0
8	49·3 ± 0·7	40·0 ± 4·2	48·0 ± 8·3	52·0 ± 1·2	8·0 ± 1·2	4·0 ± 0·0	9·3 ± 4·1	12·7 ± 1·8
12*	72·0 ± 6·0	68·0 ± 2·0	65·0 ± 1·0	59·0 ± 13·0	6·0 ± 0·0	2·0 ± 2·0	2·0 ± 0·0	1·0 ± 1·0

Values are means ± s.e. n = 3 or *n = 2.