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12 Cards in this Set
- Front
- Back
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What temperature ensures winter dormancy of the vine |
Under 10 degrees (50 F) |
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What temperatures can cause winter freeze and damage vine |
-20 degrees (-4 F) |
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What temperature stimulates budburst |
Above 10 degrees (50 F) |
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Optimum temperature for photosynthesis |
18-33 degrees (64-91 F) |
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What temperature promotes successful uniformed flowering |
Above 17 degrees (63 F) |
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What temperature promotes successful fruit set |
26-32 degrees (79-90 F) |
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What temperature promote increased bud fruitfulness in the next year |
Above 25 degrees (77F) |
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What temperature can lead to radio loss of acidity in the final month of ripening |
Above 21 degrees (70 F) |
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What temperature can result in wines with acidity levels that are too high |
Below 15 degrees (59F) |
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What temperature is anthocyanins synthesis optimum |
15-25 degrees (59-77F) |
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How can extreme heat effect vine growth |
Can cause photosynthesis to slow or stop. Water stress can also prevent photosynthesis by shutting the stomata to prevent water loss with limits the intake of carbon dioxide needed |
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How does temperature effect different grape varieties |
Late ripening varieties need greater amount of heat through the growing season to ripen sufficiently. Early ripening varieties will need less heat and will ripen early in warm climates. |
