HomeNews!The solar radiation and grapes’ maturation
July 03 2017
The solar radiation and grapes’ maturation
- Grape maturation is more important when the vine is exposed to the sun
- Moreover, when the vine is exposed to the sun with a ventilation of the exposed parts, it has a higher maturation than when it is simply exposed to the sun.
- During the day, when temperature is close to the photosynthetic optimum of the vine (25-35 ° C), it is favorable to the accumulation of sugars in the bay.
- When the temperature is too high, the content of anthocyanins and malic acid in the grapes is reduced.
- Temperature plays a positive role in the accumulation of anthocyanins in the grapes around 20 ° C (15-25 ° C).
- Low night temperatures favorise the color of the grapes, their acidity and partly their sugar content.