Element One, Vine species and varieties part 1

Question 1

Vitis Vinifera can be subdivided into two, called?

Answer 1

Vitis Vinifera Sativa

Vitis Vinifera Silvestris

Question 2

Explain Vitis Vinifera Sativa!

Answer 2

The cultivated vine, with 5-10.000 wine-producing varieties. Hermaphroditic, good fruit set and relatively large fruit

Question 3

Explain Vitis Vinifera Silverstris!

Answer 3

Wild European vines, not usually hermaphrodite and the ancestor to all of modern grape varieties. Most eliminated by Phylloxera

Question 4

Explain Vitis Lambusca!

Answer 4

Found in the wild in north eastern US, strongly flavoured and dark berrys. With “foxy” aromas.. Often used as parent for hybrids but not for rootstock.

Question 5

Explain Vitis Riparia!

Answer 5

Found wild on river bank and alluvial soil in central-eastern parts of north America. Used as rootstock - low in vigour, surface rooting and encourage early ripening. Don`t work in chalky soils, due to iron deficiency.

Question 6

Explain Vitis Rupestris!

Answer 6

found wild on light soils in southern centre of us, used as a rootstock. Rupestris rootstocks are vigorous, deep rooting system with susceptible to chlorosis. works in poor soils with limited water.

Question 7

Explain Vitis Berlandieri!

Answer 7

Like Chalky soils souther Us And Mexico. Vigorous and and deep rooting and high resistance to chlorosis. How ever poor ability to root, therefore often used with Riparia or rupestris.