Leaves are the energy powerhouses of green plants and, along with the roots, the most important nutritional organs. On the Rebstock, they develop just like the Auge, Ranken, and Blütenstände (clusters or later grapes) as lateral outgrowths at the Nodien (knots) of young growing Triebe. While the shoot tip grows in length, new leaves continuously branch off, developing in a variety-specific manner. With the help of leaf pigments such as Chlorophyll, carotenoids, and flavonoids, sunlight energy is absorbed by the leaves and converted during photosynthesis using Kohlendioxid and Wasser into energy-rich Glucose (grape sugar) and Sauerstoff. The necessary carbon dioxide is absorbed from the air through the Stomata (pores), usually on the underside of the leaves. Through these small pores, the oxygen produced during the day escapes into the atmosphere.
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The Wine lexicon helps me to keep up to date and refresh my knowledge. Thank you for this Lexicon that will never end in terms of topicality! That's what makes it so exciting to come back often.
Thorsten Rahn
Restaurantleiter, Sommelier, Weindozent und Autor; Dresden