Skip to main content
ARS Home » Southeast Area » Fort Pierce, Florida » U.S. Horticultural Research Laboratory » Subtropical Plant Pathology Research » Research » Research Project #439496

Research Project: Novel, non-transgenic, hybrid citrus varieties with resistance to huanglongbing: evaluation and cultivar development

Location: Subtropical Plant Pathology Research

Project Number: 6034-22000-045-006-R
Project Type: Reimbursable Cooperative Agreement

Start Date: Oct 1, 2020
End Date: Aug 31, 2025

Rapid screening the advanced hybrids for resistance to CLas under greenhouse conditions to facilitate selection of hybrids with broad spectrum of resistance against multiple CLas isolates.

By participating in the concerted, parallel and coordinated efforts towards developing new HLB resistant/tolerant scion cultivars, ARS will propagate the advanced hybrids on common rootstock, sour orange and/or US 942, and then evaluate their resistance/tolerance against at least two distinct CLas isolates using graft-based assay. The disease index and CLas titers will be determined via qPCR and other measurements.