Wine page 3 by ric gustafson
One nature influence on wine is climate. Climate determines if grapes exist at all. Grape vines thrive in temperate regions. Around 50 degrees, grape vines begin to grow. Below 50, grape vines remain dormant. When temperatures are 63 to 68, vines will flower.
Microclimates include wind, cloudiness and precipitation. Photosynthesis is a process that produces sugar that grape vines need in order to grow. Four elements are needed. Chlorophyll molecules must be found in the vines leaves. There must be light. There must be a small amount of water. There must be carbon dioxide.
Grape vines need the sun. Mountains and hillsides help. North facing slopes help. South facing slopes help in cool regions.
Grape vine leaves can help or hurt. Without enough leaves, Leaves convert light energy to chemical energy. Without enough leaves, grape vines will produce more clusters than it can ripen. The result are grapes that are weak and lack in flavor.
When grape vines have to work harder to grow because of lack of sun and water, they are stressed. Other hazards to grape vines include temperature swings and frost.
Next we will look at three important things grape vines need in order to survive.
research help: ' The Wine Bible' by Karen MacNeil
Peace and God's blessings. Love Ric