TY - JOUR T1 - The Early Selection of Grapevine Rootstocks for Resistance to Drought Conditions JF - American Journal of Enology and Viticulture JO - Am J Enol Vitic. SP - 195 LP - 198 DO - 10.5344/ajev.1985.36.3.195 VL - 36 IS - 3 AU - A. Carbonneau Y1 - 1985/01/01 UR - http://www.ajevonline.org/content/36/3/195.abstract N2 - The resistance to severe drought conditions of 20 classical grapevine rootstocks and seven new rootstock genotypes was determined using an early selection test. One-year-old vines were grown under a restricted water regime (1/9 maximum evapotranspiration) in small containers inside a greenhouse. For each plant, the parameter F/rs (F = total active leaf area; 1/rs = stomatal conductance of active leaves) were determined. The results specify the pedoclimatic adaptation of the rootstocks and indicate that the water absorbing activity of the rootlets were the likely primary mechanisms of adaptation to drought. ER -