débourrement
budburst, budbreak
- 1st new green tissue emerges from each bud
millerandage
hens and chicks
- Grape clusters with berries that vary in size and number of seeds
- Caused by cold weather at flowering, mineral deficiency, or disease
- Results in reduced yields and uneven ripening
taille
pruning
- Excess wood is removed from the dormant vine, strategically leaving only buds that will produce
porte-greffe
rootstock
- portion of the vine in contact with the soil
- typically phylloxera resistant
couloure
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
inflorescence
Cluster of flowers that, after berry set, becomes a grape cluster
shot berries
Small, hard, green berries that contain no seeds
suckering
Removing small, unwanted shoots that grow from buds, not yet developed, on the trunk and cordon
Vitis berlandieri
- Species of grape commonly used for rootstock
- Good for limestone soils but does not graft well
Vitis riparia
- Species of grape commonly used for rootstock
- Tolerates wet soils
- Has a devigorating (slowing of shoot elongation) effect on the vine
- Induces early ripening
shoot devigoration
natural slowing of shoot elongation
usually due to water stress
Optical sorter
Automatically rejects berries that aren’t a certain shape, size, color
Density sorter
Grapes are run through a sugar-water solution, more ripe grapes fall to the bottom, those that float are rejected.
What techniques can vintners employ during cold vintages?
Chapitalization
Vacuum distillation
Reverse Osmosis
