Factors influencing the production of stilbenes by the knotweed, Reynoutria × bohemica

BMC Plant Biology

Table 1 Overview of plant characteristics tested using an ANOVA during the two years of the pot experiment

Plant characteristics measured		Significance of factors and their interactions
		A	B	C	A*B	A*C	B*C	AB C
		year	substrate	melilot
Plant aboveground characteristics	in year
Knotweed
Branch no	2006+07	0.001	0.001	NS	0.001	NS	NS	NS
Plant dry mass (g)	2006+07	0.001	0.001	0.001	NS	0.01	NS	NS
Leaf area (cm²)	2007	x	0.001	NS	x	x	NS	x
Melilot
Plant dry mass (g)	2006+07	0.05	NS	x	NS	x	x	x
Plant belowground characteristics
Knotweed
Root and rhizome dry mass (g)	2007	x	0.001	0.001	x	x	NS	x
Root colonisation rate F (%)	2006+07	0.001	0.001	x	0.05	x	x	x
Root colonisation rate M (%)	2006+07	0.001	0.001	x	NS	x	x	x
Nitrogen (%)	2006+07	0.001	0.001	0.001	0.001	0.001	0.001	0.001
Carbon (%)	2006+07	NS	NS	NS	NS	NS	NS	NS
Phosphorus (ppm)	2006+07	0.001	0.001	0.001	NS	NS	NS	NS
Astringin (mass %)	2006+07	0.001	0.01	NS	NS	0.01	0.01	NS
Astringin 2 (mass %)	2006+07	0.001	0.05	NS	NS	0.05	0.01	NS
Piceatannol (mass %)	2006+07	0.01	0.001	0.05	0.001	NS	NS	NS
Piceid (mass %)	2006+07	0.001	0.05	0.01	NS	NS	NS	NS
Resveratrol (mass %)	2006+07	NS	0.001	0.001	0.05	NS	0.05	NS
Resveratrolosid (mass %)	2006+07	0.001	NS	0.01	NS	NS	0.01	NS
Emodin (mass %)	2006+07	0.001	0.001	0.001	NS	0.001	NS	NS
Resveratrol-derivatives (mass %)	2006+07	0.01	0.01	0.001	NS	NS	0.001	NS
Melilot
Melilot colonisation rate F (%)	2007	x	NS	x	x	x	x	x
Melilot colonisation rate M (%)	2007	x	NS	x	x	x	x	x

ISSN: 1471-2229