Table 4. 1996 yield and tree growth measurements of cv. 'Empire' from the NC-140 orchard systems trial planted in 1990 at the Horticultural Experiment Station, Simcoe, Ontario. Parameters are grouped by orchard system and rootstock and are ranked in decreasing order of cumulative yield efficiency.z

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	Yield (kg/tree) ____________________________				TCSA (cm2) ______________		Yield effic. (kg/cm2 ) ___________________		Cum. yield effic. (kg/cm2 ) Yield '92-96/'96 TCSA	No. frt per tree 1996	Avg. frt. size (g)	Yield (MT/ha) ______________		1995 canopy volume (m3)
System Empire	1993 Yr 4	1994 Yr 5	1995 Yr 6	1996 Yr 7	1995 Yr 6	1996 Yr 7	1995 Yr 6	1996 Yr 7				1996 Yr 6	Cum. Yield
EMPIRE
CL Mark	11.3	6.0	9.3	3.6	19.0	24.4	0.48	0.16	1.46	27	130	4.0	38.9	3.9
CL M.26E.	9.8	6.4	12.2	5.5	25.9	35.1	0.46	0.18	1.17	42	116	6.1	44.3	7.9
SS M.9E.	11.4	6.3	8.4	2.3	15.9	20.5	0.53	0.11	1.75	17	141	5.7	88.4	3.5
SS MARK	9.0	4.1	5.9	2.2	15.1	18.9	0.39	0.11	1.41	17	122	5.4	65.7	2.4
SS B.9	10.2	4.2	7.2	1.1	15.0	20.1	0.48	0.05	1.40	9	118	2.6	69.2	3.3
VA M.9 E.	9.6	10.9	8.9	3.3	15.3	20.9	0.57	0.18	1.86	23	133	5.2	61.0	4.8
VA MARK	9.9	7.3	9.0	3.3	16.3	21.6	0.56	0.15	1.72	27	120	5.2	57.6	3.8
VA O.3	10.6	7.3	9.5	3.1	15.1	21.5	0.65	0.16	1.58	24	128	4.9	52.7	6.5
VA M.26 E.1	1.4	11.6	9.6	4.2	23.5	32.5	0.42	0.13	1.40	33	123	6.6	71.5	9.8
VA P.1	15.5	3.8	13.7	2.2	31.4	43.0	0.44	0.05	0.86	19	110	3.4	57.6	10.0
Significancez	ns	*	ns	ns	***	***	ns	ns	*	ns	*	*	**	***

LSD(P=5%)

na

na

3.4

3.6

4

5.8

0.17

0.16

0.51

26

16

5

21.9

z ns, *, **, ***, indicates not significant and significant difference at P=0.05, P=0.10, and P=0.01, respectively