harvesting and handling citrus
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Harvesting and Handling Citrus. Harvesting Methods. Manual Min. Maturity standards (refer Table 1. in MLA’s paper) Ladders and picking containers Pulled from the limb- TX, FL Clipped- CA, FL Canvas or plastic sack Contd. Harvesting Methods. Manual

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harvesting methods
Harvesting Methods
  • Manual
    • Min. Maturity standards (refer Table 1. in MLA’s paper)
    • Ladders and picking containers
    • Pulled from the limb- TX, FL
    • Clipped- CA, FL
    • Canvas or plastic sack Contd.
harvesting methods1
Harvesting Methods
  • Manual
    • Wooden, plastic or metal container Processing
      • Truck trailers
      • FL-90% oranges and 50% GF
      • CA and AZ- 35 %
      • TX- 10% Contd.
harvesting methods2
Harvesting Methods
  • Manual
    • Beginning of season-spot picked
    • CA: Lemons are picked with sizing rings
    • Expensive- Australia- 50% cost of production of oranges Contd.
harvesting methods3
Harvesting Methods
  • Mechanical platforms and multi-positioner OR MONOPICKER
    • Research FL Dept of Citrus
    • Each machine has 3 platforms and carry up to 12 pickers
    • Giant hair brush with nylon bristles
    • Investment $5,400/picker
    • Power ladder - $15,000
harvesting methods4
Harvesting Methods
  • Mechanical
    • Reduce picking time, labor and save atleast $ 4/ton
    • Only for processing fruits
    • Preharvest sprays to loosen the fruit
    • Limb and fruit interactions and catch frame
harvesting methods5
Harvesting Methods
  • Tree shakers with catch frames
  • Air blasts for fruit removal
handling
Handling
  • Packing house operations
    • Fig 7.3 (book) and Fig 2. from MLA’s paper.
cultural practices
Cultural Practices
  • Fertilization Practices
    • High Nitrogen which increases tree vigor, thereby affecting color break
packinghouse treatments
Packinghouse Treatments
  • Bin Drenching
  • Washing
    • Increases time for degreening?
  • Waxing
    • Inhibits degreening
  • Color Sorting
    • Increases efficacy of treatment
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