Effect of light regime and provenance on leaf characteristics, growth and flavonoid accumulation in Cyclocarya paliurus (Batal) Iljinskaja coppices

Botanical Studies

Table 8 Pearson correlation coefficients between leaf characteristics and leaf flavonoid concentrations (n = 27)

Leaf characteristics	Flavonoid concentrations (mg g⁻¹)
Leaf characteristics	Total	Quercetin	Isoquercitrin	Kaempferol
Leaf area per plant (cm²)	−0.334	−0.614	−0.469	−0.339
Leaf thickness (μm)	0.859**	0.904**	0.962**	0.866**
Palisade length (μm)	0.829**	0.887**	0.948**	0.884**
Total chlorophyll concentration (mg g⁻¹)	−0.729*	−0.636	−0.853**	−0.746*
Chlorophyll ratio a/b	0.574	0.591	0.443	0.777*

* and ** indicate correlation is significant at the 0.05 and 0.01 level, respectively