|SUAREZ, DONALD - Collaborator|
|GRADZIEL, THOMAS - University Of California, Davis|
Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 12/7/2022
Publication Date: N/A
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.