Table 1.

The influence of sugars (sucrose) on growth of silver birch, red oak, cherry, and rowan at week 12 applied as a soil drench.

Tree	Sugar	Leaf area (cm^-2)	Root length (cm)	Leaf DW (g)	Shoot DW (g)	Root DW (g)	Total plant DW (g)	R:S	RGP
Rowan	Control	484	31.4	3.25	8.98	5.67	17.90	2.22	8.8
	25 g l^-1	521^ns	39.1^ns	3.85^ns	9.88^ns	6.79^ns	20.52^ns	2.07^ns	11.3^ns
	50 g l^–1	538^ns	37.4^ns	4.00*	10.0^ns	7.04^ns	21.05^ns	2.02^ns	10.7^ns
	70 g l^–1	391^ns	26.5^ns	2.52^ns	6.94^ns	4.57^ns	14.03^ns	2.13^ns	7.4^ns
	LSD	141.8	7.76	0.738	2.11	1.816	4.536	0.424	3.76
Silver birch	Control	303	31.4	1.91	4.82	1.90	8.63	3.65	7.8
	25 g l^-1	336^ns	41.2*	2.23^ns	5.79*	3.16*	11.18*	2.56*	13.1*
	50 g l^-1	332^ns	39.6*	2.12^ns	5.81*	2.99*	10.91*	2.68*	11.1^ns
	70 g l^-1	313^ns	36.6^ns	2.15^ns	5.48^ns	3.24*	10.87*	2.39*	12.5*
	LSD	65.5	7.08	0.526	0.826	0.494	1.342	0.520	4.21
Cherry	Control	339	24.1	2.56	9.35	10.78	22.71	1.14	10.3
	25 g l^-1	448^ns	33.4*	3.08^ns	12.37*	15.78*	31.22*	0.98^ns	17.5*
	50 g l^-1	469^ns	33.8*	3.13^ns	13.21*	15.67*	32.00*	1.06^ns	15.2*
	70 g l^-1	357^ns	27.3^ns	2.62^ns	8.99^ns	9.45^ns	21.16^ns	1.23^ns	10.0^ns
	LSD	156.6	8.98	0.914	2.88	4.39	7.74	0.209	4.84
Red oak	Control	350	12.0	2.27	2.64	4.65	9.56	1.06	6.7
	25 g l^-1	397^ns	17.5*	2.85*	2.85^ns	7.43*	13.13*	0.77*	8.4*
	50 g l^-1	434^ns	21.0*	3.31*	2.97^ns	8.49*	14.77*	0.74*	8.9*
	70 g l^-1	323^ns	10.2^ns	2.04^ns	2.10*	3.93^ns	8.07^ns	1.05^ns	5.4^ns
	LSD	93.2	4.48	0.578	0.476	2.70	3.416	0.265	1.33