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conservation, characterisation and management of grapevine genetic

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Tab. 02 – Values <strong>of</strong> Magnesium <strong>and</strong> Rubídio (mg.L -1 ) <strong>of</strong> the wines Cabernet Sauvignon <strong>and</strong> Merlot <strong>of</strong> the different studied regions<br />

Mean<br />

St<strong>and</strong>ard<br />

error<br />

Mean<br />

Magnesium Rubidium<br />

Regions Merlot Cabernet Sauvignon Total<br />

Merlot Cabernet Sauvignon Total<br />

St<strong>and</strong>ard<br />

error<br />

Mean<br />

St<strong>and</strong>ard<br />

error<br />

Mean<br />

St<strong>and</strong>ard<br />

error<br />

Mean<br />

St<strong>and</strong>ard<br />

error<br />

Serra Gaúcha 79.68 Cb ± 0.87 80.30 Ca ± 1.02 79.99 C ± 0.67 6.95 Bb ± 0.25 7.99 Ba ± 0.23 7.47 B ± 0.18<br />

Serra do Sudeste 90.94 Ab ± 3.03 98.52 Aa ± 4.70 93.47 A ± 2.62 8.47 Ab ± 0.29 9.72 Aa ± 0.20 8.88 A ± 0.25<br />

Campanha 86.52 Bb ± 1.40 89.22 Ba ± 1.38 88.08 B ± 1.00 4.45 Cb ± 0.22 5.50 Ca ± 0.27 5.06 C ± 0.19<br />

Total 82.19 b ± 0.79 83.70 a ± 0.91 82.96 ± 0.60 6.50 b ± 0.21 7.31 a ± 0.20 6.92 ± 0.15<br />

Means followed by different capital letters in the column <strong>and</strong> means followed by different letters in the line differ significantly by ANOVA complemented by the Test <strong>of</strong> Multiple<br />

comparisons tukey significance level de 5%.<br />

The determination <strong>of</strong> rubidium, regardless <strong>of</strong> variety, allow the differentiation <strong>of</strong><br />

wines from three regions studied, samples from the Serra do Sudeste had a higher average,<br />

differing from Serra Gaúcha <strong>and</strong> the Campanha. Besides differentiating regions, the<br />

rubidium values allow to differentiated varieties, the Cv Cabernet Sauvignon, regardless<br />

<strong>of</strong> region, had a total mean significantly higher than the Cv Merlot. Frias et al. (2003)<br />

were able to differentiate Spanish wines <strong>of</strong> the Canary Isl<strong>and</strong>s through the rubidium,<br />

obtaining values <strong>of</strong> 0.33 mg.L -1 to 2.88 mg.L -1 . Latorre et al. (1994) also obtained a good<br />

classification <strong>of</strong> Spanish wines from the region <strong>of</strong> Galicia, through the levels <strong>of</strong> lithium<br />

<strong>and</strong> rubidium.<br />

Tab. 03 – Values <strong>of</strong> Manganes e Calcium (mg.L -1 ) <strong>of</strong> wines Cabernet Sauvignon <strong>and</strong> Merlot <strong>of</strong> the different studied regions<br />

Regions<br />

Mean<br />

Serra Gaúcha 2.21 Ba<br />

Serra do Sudeste 1.96 Ba<br />

Campanha 3.62 Aa<br />

St<strong>and</strong>ard<br />

error<br />

Mean<br />

Manganese Calcium<br />

Merlot Cabernet Sauvignon Total Merlot Cabernet Sauvignon Total<br />

St<strong>and</strong>ard<br />

error<br />

Mean<br />

St<strong>and</strong>ard<br />

error<br />

Mean<br />

± 0.13 1.84 Aa ± 0.08 2.03 ± 0.08 55.14 Ab<br />

± 0.1 1.27 Aa ± 0.12 1.73 ± 0.11 48.61 Aa<br />

± 0.33 2.44 Ab ± 0.15 2.94 ± 0.18 59.12 Aa<br />

St<strong>and</strong>ard<br />

error<br />

Mean<br />

± 1.29 68.97 Aa<br />

± 2.49 51.13 Ba<br />

± 1.44 60.72 Ba<br />

St<strong>and</strong>ard<br />

error<br />

Mean<br />

Mean<br />

St<strong>and</strong>ard<br />

error<br />

± 1.5 62.06 ± 1.10<br />

± 8.89 49.45 ± 3.24<br />

± 1.75 60.04 ± 1.17<br />

Total 2.51 ± 0.13 2.00 ± 0.07 2.25 ± 0.08 55.51 ± 0.99 65.78 ± 1.23 60.75 ± 0.85<br />

Means followed by different capital letters in the column <strong>and</strong> means followed by different letters in the line differ significantly by ANOVA complemented by the Test <strong>of</strong> Multiple<br />

comparisons tukey significance level de 5%.<br />

The results <strong>of</strong> manganese (Table 03) allowed differentiation <strong>of</strong> the region's <strong>of</strong><br />

Campanha for the other regions, only for the variety Merlot, in Cv Cabernet Sauvignon no<br />

significant difference between regions were show. In the region <strong>of</strong> Campanha the average<br />

<strong>of</strong> Cv Merlot was significantly higher than the Cabernet Sauvignon. The total average<br />

levels <strong>of</strong> manganese, found in this work are consistent with those reported for Brazilian<br />

wine business, whose contents varied from 1.9 to 3.30 mg.L -1 (Rizzon & Miele, 2002),<br />

2.1 to 2.8 mg.L -1 (Daudt et al., 1987a) <strong>and</strong> from 0.70 to 4.10 mg.L -1 (Silva et al., 1999).<br />

The manganese content can be influenced by the fermentation process also may be a<br />

particular feature <strong>of</strong> a given region <strong>of</strong> production (Daudt et al., 1987b). Normally the<br />

source <strong>of</strong> this mineral is associated with soil <strong>and</strong> pesticide treatments used on the vine<br />

(Silva et al., 1999).<br />

The levels <strong>of</strong> calcium (Table 03) allowed the different wines <strong>of</strong> the region <strong>of</strong> Serra<br />

Gaúcha compared with other regions, only to Cv Cabernet Sauvignon. In this region the<br />

average <strong>of</strong> Cv Cabernet Sauvignon was significantly higher than the Cv Merlot. The<br />

average levels <strong>of</strong> calcium found in this work, ranging from 48.61 mg.L -1 to 69.0 mg.L -1 ,<br />

being lower than described for commercial Brazilian wines by Rizzon & Miele (2002),<br />

5<br />

St<strong>and</strong>ard<br />

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