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

Extension Associated Contacts

 

Also of Interest:

 
Douglas County Cow-Calf Production Costs & Returns
This publication is intended to be a guide used to make production decisions, determine potential returns, and prepare business and marketing plans. Practices described are based on the production practices considered typical for a beef cattle cow-calf operation in this region, b...
Curtis, K., Lewis, S., and Ruby, K. 2006, Extension | University of Nevada, Reno, FS-07-11
Elko County Cow-Calf Production Costs & Returns
The practices described are not the recommendations of the University of Nevada, Reno, but rather production practices and materials considered typical of a well-managed beef cattle operation in the region, as determined by a producer panel conducted in October 2006.
Curtis, K., Brough, E., Torell, R., and Riggs, W. 2006, Extension | University of Nevada, Reno, FS-07-08
Lyon County Cow-Calf Production Costs & Returns
This publication is intended to be a guide used to make production decisions, determine potential returns, and prepare business and marketing plans. Practices described are based on the production practices considered typical for a beef cattle cow-calf operation in this region, b...
Beaupre, A., Curtis, K., and Singletary, L. 2006, Extension | University of Nevada, Reno, FS-07-13
Pershing County Cow-Calf Production Costs & Returns
This publication is intended to be a guide used to make production decisions, determine potential returns, and prepare business and marketing plans. Practices described are based on the production practices considered typical for a beef cattle cow-calf operation in this region, b...
Breazeale, D., Curtis, K., and Vesco, A. 2006, Extension | University of Nevada, Reno, FS-07-12
Reproductive Management of Beef Cows: 48-Hour Calf Removal
Research shows that reproduction, or simply weaning a marketable calf, is ten times more important than weaning weights and twenty times more important than carcass traits. Poor reproduction is one of the biggest issues facing range livestock operators throughout the west, partic...
Bruce, B., Riggs, W., Schultz, B., Suverly, N., and Torell, R. 2002, University of Nevada Cooperative Extension