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ARS Home » Pacific West Area » Riverside, California » Agricultural Water Efficiency and Salinity Research Unit » Research » Publications at this Location » Publication #400455
Research Project: Enhancing Specialty Crop Tolerance to Saline Irrigation Waters

Location: Agricultural Water Efficiency and Salinity Research Unit

Title: Evaluating new breeding material for salinity tolerance in almond rootstocks and exploring novel sources of salinity tolerance in Prunus

Author
item Sandhu, Devinder
item Ferreira, Jorge
item SUAREZ, DONALD - Collaborator
item GRADZIEL, THOMAS - University Of California, Davis
item Kluepfel, Daniel

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 12/7/2022
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: The long-term goal of this project is to facilitate the development of new rootstocks that are vigorous, resistant to diseases and insects, and also tolerant to salinity. Several almond rootstock breeding lines have already been tested for several traits, including performance, vigor, biotic stresses, and abiotic stresses by breeders (Drs. Tom Gradziel, UC Davis, Malli Aradhya, USDA-ARS Davis, and Daniel Kluepfel, USDA-ARS Davis). We have evaluated a selected set of elite hybrids provided by breeders for salinity tolerance. Different hybrids were classified based on the survival rate and the relative change in trunk diameter. The survival rates of the genotypes varied from 0% to 66.7%, and the relative change in trunk diameter varied from 0.52 to 1.40. Three rootstocks (UCD38, SG-154, and SG-155) had survival rates of more than 33% and a relative change in the trunk diameter of more than 1. Sixteen selected rootstocks from this trial and 17 additional rootstocks are being evaluated for their salinity tolerance in the 2022-23 season.