Grant Information

DEVELOPMENT OF SUPERSOUR AND OTHER OUTSTANDING ROOTSTOCKS WITH TOLERANCE TO HLB

Sponsoring Institution Agricultural Research Service/USDA
Status ACTIVE
Funding Source USDA INHOUSE
Reporting Frequency Annual
Project Director BOWMAN K D
Accession Number 435924
Project Number 6034-21000-018-017R
Dates 2018-11-01 - 2022-04-30
Recipient Organization AGRICULTURAL RESEARCH SERVICE
219 SOUTH ROCK ROAD
FT PIERCE,FL 34945
Keywords greening
huanglongbing
rootstocks
scions
Research Effort Applied (50%)
Basic (50%)
Developmental (0%)
Classification Parameters
Knowledge AreaSubject of InvestigationField of SciencePercent
204 - Plant Product Quality and Utility (Preharvest) 920 - Orange 1080 - Genetics (excludes breeding) 40%
203 - Plant Biological Efficiency and Abiotic Stresses Affecting Plants 910 - Grapefruit 1000 - Biochemistry and biophysics 30%
212 - Pathogens and Nematodes Affecting Plants 999 - Citrus, general/other 1160 - Pathology 30%
Goals / Objectives
  1. Create hybrid rootstocks which combine germplasm from parental material with good rootstock traits and huanglongbing (HLB) tolerance, propagate the most promising of these hybrids, and establish replicated field trials with commercial scions.
  2. Collect field performance data from early-stage replicated rootstock field trials and release new rootstock cultivars as justified by superior performance in multiyear field trials.
Methods (unparsed)

Make crosses with new parental combinations. Complete propagation of trees for new trials. Plant new replicated field trials with new rootstocks. Tree size and health measurements. Fruit yield and fruit quality measurements. Polymerase chain reaction (PCR) evaluations of Candidatus Liberibacter asiaticus (CLas) infection.

Methods
Make crosses with new parental combinations. Complete propagation of trees for new trials. Plant new replicated field trials with new rootstocks. Tree size and health measurements. Fruit yield and fruit quality measurements. Polymerase chain reaction (PCR) evaluations of Candidatus Liberibacter asiaticus (CLas) infection.