. 2010 Dec 10;107(3):397–405. doi: 10.1093/aob/mcq245

Table 1.

Seasonal changes in soil water content (SWC; n = 24), leaf water content (LWC; n = 10), specific leaf area (SLA; n = 10), pubescence (weight of trichomes; n = 15), fraction of incident PPF absorbed by the leaf (a; n = 20) and leaf angle (n = 50) of plants of Calotropis procera and C. gigantea growing in the field

	C. procera		C. gigantea
Parameter	WS	DS	WS	DS
SWC (% dry matter)	8·3 (0·4)^c	1·4 (0·2)^a	4·3 (0·1)^b	1·3 (0·2)^a
LWC (% dry matter)	86 (4)^b	74 (3)^a	86 (3)^b	78 (3)^a
SLA (cm² g⁻¹)	127 (5)^a	126 (6)^a	203 (9)^c	167 (2)^b
mg trichomes g⁻¹	1·3 (0·1)^a	1·8 (0·4)^a	3·3 (0·2)^b	4·4 (0·5)^b
a	0·82 (0·01)^b	0·79 (0·01)^b	0·75 (0·00)^a	0·74 (0·00)^a
Leaf angle (°)	20 (1)^a	23 (0·7)^a	48 (1)^b	51 (1·1)^b

Results are presented as means (s.e.). Different letters indicate significant differences between seasons and species for each parameter at P < 0·05.