SW Flatwoods Sweet Orange Rootstock Trial, LaBellle

Dr. Jude Grosser – Dr. Fred Gmitter – Dr. Bill Castle

November 17, 2021 - revised
November 24, 2020 – updated
December 7, 2018 - posted
CREC Citrus Plant Improvement

SW Flatwoods Sweet Orange Rootstock Trial - Description

Trial consists of 29 sweet orange/rootstock combinations (approximately 1000 trees planted as resets in 2014) in a poor soil type of the southwest Florida flatwoods location. The scions are: ‘Valencia’ B9-65, OLL-8 and OLL-20 sweet oranges on 7 new sour orange-like hybrid rootstocks along with UFR-2, UFR-4, UFR-15 and UFR-17 rootstocks. The goal is to identify scion/rootstock combinations for resetting in southwest Florida.

SW Flatwoods Sweet Orange Rootstock Trial - Summary

• Location: LaBelle, Hendry county
• Scion: ‘Valencia’ B9-65, OLL-8 and OLL-20 sweet oranges
• Date planted: mostly in 2006; completed in 2007.
• Rootstocks: 7 new sour orange-like hybrid rootstocks and UFR-2, UFR-4, UFR-15 and UFR-17 rootstocks
• Data planted: 2014
• Data:
  
  • 2017/18: Yield; HLB rating; tree size rating.
  • 2018/19: Yield; HLB rating; tree size rating.
    
    
• Trial status: ACTIVE