PT  - JOURNAL ARTICLE
AU  - Shellie, Krista C.
TI  - Vine and Berry Response of Merlot (<em>Vitis vinifera</em> L.) to Differential Water Stress
AID  - 10.5344/ajev.2006.57.4.514
DP  - 2006 Dec 01
TA  - American Journal of Enology and Viticulture
PG  - 514--518
VI  - 57
IP  - 4
4099  - http://www.ajevonline.org/content/57/4/514.short
4100  - http://www.ajevonline.org/content/57/4/514.full
SO  - Am J Enol Vitic.2006 Dec 01; 57
AB  - Merlot vines were drip-irrigated with 100, 70, or 35% of estimated crop evapotranspiration (ETc) or 35% ETc until veraison followed by 70% ETc until harvest. Midday leaf water potential (Ψ) differed among irrigation regimes and ranged from −0.9 to −1.7 MPa, with a 0.3 to 0.5 MPa difference between 35 and 100% ETc. Decline in shoot growth, berry size, cluster weight, yield, trunk growth, cluster number, and berry titratable acidity corresponded with a decline in Ψ. Increasing irrigation from 35 to 70% ETc at veraison consumed 30% less water producing similar yield and quality as the 70% ETc treatment.