Abstract

As grapevine production is converting into irrigated systems worldwide, understanding rootstock-scion interactions at different stages of moderate drought can help to better manage water resources and the choice of rootstock. This study compared the physio-morphological drought response and recovery of a drought-sensitive (Riparia Gloire (Vitis riparia)) and a drought-tolerant rootstock (Ramsey (Vitis champinii)) grafted with Cabernet Sauvignon (Vitis vinifera), and the self-grafted control in a pot study. Ramsey had lower root-to-shoot ratio but higher performance of the root system under drought, explained by the lower root tissue density and tip suberization and higher VviPIP2;1 aquaporin expression, and faster recovery of root hydraulic conductivity and stomatal conductance after re-watering than Riparia. Riparia maintained better water status under moderate drought by early root suberization, but it was less able to restore water uptake capacity and support scion growth and leaf gas exchange after re-watering. This study shows a suite of rootstock traits that improve scion growth in response to moderate drought. Thus, these results identify traits for breeding programs and the selection of rootstocks for sustainable management of water resources under irrigated production.

Bonarota, M.S., Toups, H.S., Bristow, S.T., Santos, P., Jackson, L.E., Cramer, G.R., Barrios-Masias, F.H. 2024, Drought response and recovery mechanisms of grapevine rootstocks grafted to a common Vitis vinifera scion, Plant Stress

Visit Journal referenced web page

Extension Associated Contacts

Felipe Barrios Masias

Also of Interest:


A Change in the Ecological Understanding of Rangelands in the Great Basin and Intermountain West and Implications for Management: Revisiting Mack and Thompson (1982) Perryman, P., Schultz, B., Meiman, P. 2021, Rangeland Ecology & Management Vol 76, Pages 1-11
Nevada’s Priority Agricultural Weeds: Perennial Pepperweed Perennial pepperweed is a long-lived perennial weed native to Eurasia. This weed arrived in North America as an ornamental plant, but subsequently spread throughout the Western states, where it inhabits many different environmental settings. B. Schultz, S. Foster 2021, Extension, University of Nevada, Reno, SP-21-01
Nevada’s Priority Agricultural Weeds: Hoary Cress Plants commonly referred to as hoary cress (Cardaria sp.), or short whitetop, are one of three different but closely related perennial forbs. The Cardaria species are widespread across all eleven Western states, including every county in Nevada. B. Schultz, S. Foster 2021, Extension, University of Nevada, Reno, SP-21-03
Nevada’s Priority Agricultural Weeds: Russian Knapweed Russian knapweed (Acroptilon repens) is a non-native perennial forb (wild flower) that arrived in the United States in the late 1890s. This weed is well adapted, growing in damp to poorly drained soils with high salinity and/or alkalinity. B. Schultz, S. Foster 2021, Extension, University of Nevada, Reno, SP-21-02
Demographic Characteristics for Humboldt County, Nevada The project focuses on providing Nevada’s counties, state and federal agencies, and their partners with quantitative and qualitative baseline data and analyses to better understand the counties’ demographic, social, economic, fiscal, and environmental characteristics, trends, and... B. Borden, J. Lednicky, B. Schultz 2020, Extension, University of Nevada, Reno

Drought response and recovery mechanisms of grapevine rootstocks grafted to a common Vitis vinifera scion

Abstract

Published by: Bonarota, M.S., Toups, H.S., Bristow, S.T., Santos, P., Jackson, L.E., Cramer, G.R., Barrios-Masias, F.H., 2024, Drought response and recovery mechanisms of grapevine rootstocks grafted to a common Vitis vinifera scion, Plant Stress