Table 3.

Correlation coefficients, calculated from different data pools, between N_t in whole pelargonium cuttings as independent variables and pre-rooting carbohydrate concentrations in different cutting parts as dependent variables

Concentration of	Tissue	At harvest (n = 27)	After storage (n = 27)	All cuttings (n = 54)
Glucose	Leaf lamina	0·44*	n.s.	n.s.
	Basal stem	0·53**	−0·68***	n.s.
	Whole cutting	n.s.	−0·67***	n.s.
Fructose	Leaf lamina	n.s.	n.s.	n.s.
	Basal stem	0·49**	−0·49**	n.s.
	Whole cutting	n.s.	−0·60**	n.s.
Sucrose	Leaf lamina	n.s.	n.s.	n.s.
	Petioles	n.s.	n.s.	n.s.
	Whole cutting	n.s.	n.s.	n.s.
Total sugars	Leaf lamina	0·39*	n.s.	n.s.
	Basal stem	0·63***	−0·66***	n.s.
	Whole cuttings	0·42*	−0·67***	n.s.
Starch	Leaf lamina	−0·73***	n.s.	−0·42**
	Basal stem	−0·65***	−0·86***	−0·72***
	Whole cutting	−0·78***	−0·86***	−0·66***
Total non-structural carbohydrates	Leaf lamina	−0·60***	n.s.	−0·32*
	Basal stem	−0·58**	−0·85***	−0·70***
	Whole cutting	−0·64***	−0·82***	−0·60***

Total sugars = glucose + fructose + sucrose; total non-structural carbohydrates = total sugars + starch.

n.s., non-significant;

^***P < 0·001;

^**P < 0·01;

^*P < 0·05.