Table I.

Main soluble carbohydrates and sedoheptulose reductase activities of leaves of some Primula species

Species	Soluble Carbohydrate					Sedoheptulose Reductase Activity
	Volemitol	Sedoheptulose	Suc	Glc	Fru
	mg g−1 fresh wt					milliunits g−1 fresh wt
P. × polyantha	50.1  ± 10.0	35.7  ± 11.2	4.1  ± 0.3	1.0  ± 0.1	6.2  ± 1.7	42.1  ± 6.8
P. elatior	23.4  ± 2.0	14.4  ± 1.9	6.7  ± 1.2	3.9  ± 0.3	3.5  ± 0.8	25.5  ± 11.3
P. juliae	24.5  ± 3.1	27.7  ± 3.5	14.1  ± 0.8	2.2  ± 0.9	5.8  ± 0.4	21.0  ± 5.3
P. denticulata	nda	0.4  ± 0.1	4.1  ± 0.6	3.4  ± 0.2	7.2  ± 0.8	nd

Youngest fully mature leaves were harvested in March from plants grown under natural conditions in the University of Zurich Botanical Garden. Data are means ± se from three plants.

^and, Not detected.