Viticulture Flashcards
When the “budbreak” occurs in the northern Hemisphere?
Usually in March or April, when the average air temperature surpasses 50F or 10 degrees Celsius.
In the northern Hemisphere, flowering occurs _______ to __________ weeks after the initial budbreak.
three to thirteen, depending on the climate.
How are called the bunches that forms on the shoots by mid-April?
embryo
Another danger that can impact yield trough (July) is?
Millerandage, where some grapes flowers fail to fertilize.
In which month “veraison” occurs, and the grapes begins to ripen truly?
August, the grapes soften and change color.
In the northern Hemisphere, when the harvest occurs?
Late August, and may last trough beginning of November.
For equivalent dates in the “southern Hemisphere vineyards” how many months you need to add?
6 months
When an American (or Australian) is labeled as organic, must be produced from organically grown grapes and contain no added __________?
sulfites
why sulfites are important?
for preserving the wine
How would you explain “Biodynamic viticulture” to a costumer?
*The controversial concept of biodynamic viticulture, take the concepts of organic and sustainable farming and combines them with an almost mystical sensibility.
Who introduced the Biodynamic practice?
Rudolf Stainer in 1924.
Name the producer from Loire Valley, practicing Biodynamic viticulture?
Nikolas Joly
When the annual life cycle of the vine begins?
*In the spring, with budbreak
When does flowering occurs in the northern hemisphere?
*6 to 13 weeks after the initial budbreak, depending on the climate.
Name danger that can impact the yields trough July ?
Millerandange
In the norther hemisphere, when does (Veraison) occurs?
*In August, and the grapes begin truly ripen.
During veraison the grapes soften and ___________?
Change color
How would you explain the difference between climate and weather?
Climate: Encompasses expected temperature, rainfall, sunshine, wind and other atmospheric elements, relatively stable from year to year .
Weather: is the daily manifestation of climate, and is generally responsible for vintage variations.
Red grapes requires to successfully ripen an average summer temperature of approximately ? what about the white grapes?
*21 degrees Celsius
*18 degrees Celsius
How can too much rain affect the vines and grapes?
*Will dilute fruit quality, and create friendly environment for fungal diseases.
