Viticulture Terms Flashcards
Berry set
Just after flowering, each fertilized flower becomes a berry.
Débourrement
The first new green tissue emerges from each bud.
Budswell
Buds become larger, indicating the onset of budburst.
Clone
Offspring that is genetically identical to its parent. Obtained through vegetative propagation from cuttings.
Crossing
Offspring created by breeding two different grape varieties.
Flowering, anthesis (floraison)
Pollen is released and fertilization occurs. Wine grapevines self-pollinate, so insects are not required for pollination.
What grape species (commonly used for rootstock) is known for tolerating wet soils, de-vigorating the vine, and inducing early ripening?
Vitus Riparia
Describe Vitus Berlandieri
Species of grape commonly used for rootstock. Good for limestone soils but does not graft well.
Coulure
Uneven set. Occurs when a significant number of berries do not set after flowering. Caused by cold weather during flowering or mineral deficiency. Results in reduced yields.
Topping
Hedging the top of the vine to prevent it from growing taller.
Suckering
Removing small, unwanted shoots that grow from latent buds on the trunk and cordon.
Scion
To combat phylloxera, grapevines are comprised of two vines that have been grafted together. The scion is the portion of the vine above ground and is typically species Vitis vinifera.
Porte-greffe
The portion of the vine in contact with the soil. Rootstocks are typically phylloxera resistant.
Taille
Pruning. Excess wood is removed from the dormant vine, strategically leaving only buds that will produce shoots this year.
Effeuillage
Leaves are removed from the canopy to reduce disease pressure or increase the amount of sunlight on the fruit.
