Rootstock Effects on Deficit-Irrigated Wine grapes in a Dry Climate

摘要

Crosses of diverse North-American Vitis species are used as rootstocks in the majority of vineyards throughout the world as the sole feasible means to prevent vineyard decline due to infestation of susceptible European wine grapes (Vitis vinifera L.)by phylloxera (Daktulosphaira vitifoliae). Rootstocks are also used for their resistance to or tolerance of nematodes, adverse soil conditions such as drought, water logging, high or low pH, or salinity, and their ability to influence vine vigor and fruit ripening.