Figure 9
Seasonal variation of stilbene content in knotweed leaves. Seasonal variation in the content of resveratrol and piceid (± S.E) in overall foliage per stem from the semi-natural population of F. japonica, from April 27 (plants ca 1 m high) to May 24 (fully grown plants), 2007. The same letters indicate non-significant differences in resveratrol (lower case) and piceid (upper case) contents, n = 10.