Table 5

Fruit composition of Semillon grapevines following manipulation of the postharvest canopy efficiency.

	TSS (Brix)		Sugar/berry (mg)		pH		TA (g/L)
Treatment	2002	2003	2002	2003	2002	2003	2002	2003
^aMeans separated within columns using Fisher’s LSD test. Different letters within a column indicate a significant difference (p = 0.05).
^bAll fruit removed at midripening, therefore yield could not be determined for 2002 harvest.
^c, , **, and ns indicate significance at p < 0.05, < 0.01, < 0.001, and not significant, respectively.
R1 vineyard
Control	18.2	19.2 b^a	419 b	434	3.46	4.06 c	5.77	4.15 ab
Leaf removal	19.5	21.7 a	444 a	424	3.53	4.18 a	5.18	3.80 c
Crop removal^b	–	17.1 c	–	383	–	3.98 d	–	4.24 a
Leaf damage	18.5	20.8 ab	421 b	454	3.51	4.11 b	5.34	3.77 c
Juice spray	18.4	19.8 b	438 a	465	3.50	4.04 c	5.23	4.00 bc
Leaf damage + juice	18.7	19.7 b	426 ab	414	3.53	4.08 bc	5.08	3.97 bc
	ns^c	***	ns	ns	ns	***	ns	**
R2 vineyard
Control	22.6	22.4 bc	397	319	3.60 c	4.01 a	4.83 ab	3.75 bc
Leaf removal	23.7	25.5 a	426	311	3.67 a	4.07 a	4.49 c	3.58 c
Crop removal^b	–	19.2 d	–	293	–	3.91 b	–	4.53 a
Leaf damage	23.1	22.7 bc	403	336	3.63 bc	4.03 a	4.63 bc	3.83 ab
Juice spray	22.4	22.0 b	414	329	3.62 c	3.98 ab	4.91 a	4.02 b
Leaf damage + juice	23.1	23.6 c	438	335	3.67 ab	4.02 a	4.51 bc	3.67 bc
	ns	***	ns	ns	**	*	*	**
H1 vineyard
Control	22.4	22.6 bc	300	144	3.81	4.09	3.49	3.46
Leaf removal	24.1	22.0 bc	328	131	3.82	4.17	3.33	3.35
Crop removal^b	–	21.6 c	–	140	–	4.10	–	3.73
Leaf damage	23.3	23.3 ab	297	122	3.77	4.19	3.48	3.62
Juice spray	22.5	23.8 a	281	131	3.77	4.16	3.56	3.62
Leaf damage + juice	22.7	23.5 a	300	153	3.75	4.07	3.46	3.57
	ns	*	ns	ns	ns	ns	ns	ns
H2 vineyard
Control	25.5	29.0	248	43	3.73	3.81	4.32	5.42
Leaf removal	26.2	28.2	268	52	3.70	3.85	4.31	5.39
Crop removal^b	–	28.3	–	38	–	3.79	–	5.40
Leaf damage	25.8	28.5	267	47	3.72	3.73	4.25	5.86
Juice spray	25.7	28.1	256	70	3.71	3.85	4.32	4.63
Leaf damage + juice	25.9	28.4	272	64	3.70	3.81	4.30	4.85
	ns	ns	ns	ns	ns	ns	ns	ns