Large Perennial Fruit tree in 2018 for "FRUIT DEVELOPMENT & YIELD " ORANGE JUICE (Valencia's) in this trial

Study Investigator: M. Edenfield, Phd

Location of Study: Florida, USA, Commercial field

Study Period: Feb 2018 - May 2019

CYAN 365®: [T2], [T5] rate is: 1 Quart per Acre
App A

1 Quart/Acre

PRE BLOOM

App B

1 Quart/Acre

FULL BLOOM

App C

1 Quart/Acre

POST BLOOM

App D

1 Quart/Acre

FALL

Cyan 365®: [T3] rate is: 1 Pint per Acre
App B

1 Pint/Acre

FULL BLOOM

App C

1 Pint/Acre

POST BLOOM

App D

1 Pint/Acre

FALL

AGRONOMIC PROTOCOL
  • • A fruit development and yield trial was conducted in 2018 at a commercial mature Valencia's grove in Lake Placid area, FL.
  • • The Valencia block on Carrizo root stock was planted (2009) in a north/south direction with tree spacing of 14.5ft x 25 ft (120 trees/A)
  • • The block was generally mature at about 10 ft in height.
  • • Plot size was 10 trees long (145 ft) and treatments were replicated 6 times in adjacent rows.
  • • Experimental treatments were applied with a tractor mounted Rears Pak Blast calibrated at 138 GPA driving 1.7 MPH.
TREATMENTS
  • TOTAL: 4 applications (A, B, C, D) for T2,4,5 and 3 applications only for T3: B,C,D 
  • [T1] Untreated A.K.A Grower Standard and/or GS
  • [T2] GS + Cyan 365® @ 1 Qt/Acre rate
  • [T3] GS + Cyan 365® @ 1 Pt/Acre rate
  • [T4] GS + Micro Nutritional solution @ 3 Qt/ Acre rate
  • [T5] GS + Micro Nutritional @ 3 Qt/Acre rate + Cyan 365® @ 1 Qt/Acre rate
APPLICATIONS
  • Foliar Applications (Apps. A-D; Trts. 2,4 and 5, T3 only B,C,D:
  • Application (A): 02/24/18. 
  • • when trees were at bud swell at pin-head bloom.(Pre Bloom)
  • Application (B): 03/11/18 
  • • When 40% of the bloom was open. (Bloom)
  • Application (C): 04/01/18 
  • • Post Bloom 
  • • Application (D): 09/21/18 
  • • Fall 
  • • Treatments 2, 4, and 5 were applied at each timing whereas treatment 3 was only applied at B,C and D timing
  • • Experimental treatments were applied with a tractor mounted Rears Pak Blast calibrated at 138 GPA driving 1.7 MPH
EVALUATIONS

FRUIT COUNT:

  • Four trees per plot of similar height, width, and vigor were flagged for yield comparison.
  • First count: 
  • Second count: 
  • Primary counts per 3.0mabout 3.92 Y3 (+/-30%)
  • Yield was collected on 8 May 2019 and weighed in aggregate per 4 tree plot.

 

YIELD

• Four trees per plot of similar height, width, and vigor were flagged for yield comparison.  
• Yield was collected on 8 May 2019 and weighed in aggregate per 4 tree plot
• Unit of count = 90Lb boxes per Acre

JUICE CONTENT AND QUALITY

• Fruit samples of each treatment were sent to the State of Florida juice lab in Lake Alfred for quality analysis. 
• Treatment effects for acid, total brix, brix ratio.  
• May 2019 date of measurement
• Acids and Brix
• Brix ratio
• Lb solids per box (1 box is 90Lbs fruit)
• Lb solids per Acre (Juice content) valued at $2.40/Lb solid (grower price) 

FRUIT DROP 

• 4 trees per plot monitored
• Measurement made at the fall 2018 
• Fruit drop from April to June is from both typical fruit drop and PFD.

PHYTO-TOXICITY
  • Foliage on trees in each plot were examined for any signs of phytotoxicity (discoloration, etc.) at 126 DAD and using a 0-100% rating scale: 0 = no phytotoxicity and 100% = dead foliage.

Study Results


+$821

ROI/Lb Solids/Acre in [T3] CYAN 365® alone

+$774

ROI/Lb Solids/Acre in [T5] Cyan 365® + MicroN

+54

Boxes/Acre in [T5] (Cyan 365®+MicroN) Vs [T1] Grow Std

+43

Boxes/Acre in [T3] Cyan 365® alone

+18.2%

More fruit count [T5] Cyan 365®+MicroN

+17%

More fruit count in [T3] Cyan 365® alone

0%

[T4] Cyan 365® is zero Phyto-toxicity

Objectives: To demonstrate the ability of CYAN 365® to improve and to help to grow more quality Fruit and yield

For a better view of the graphs and charts, reposition your mobile device into landscape mode.

YIELD BY TREATMENT (in Box/acre)

 

  • RESULTS:
  • • One box is 90 Lbs of fruit
  • • Results at May 8th 2019 (Box/Acre): 289 [T1]; 320.2 [T2]; 331.8 [T3]; 289.7 [T4]; 343 [T5]
  • [T5] +19% yield with Cyan 365® 1 Qt/Acre rate +micronutritional, it is +54 Boxes/Acre than in [T1] the Grower Standard
  • [T4] +0% the micronutrient solution by itself, does not improve the yield nor the fruit count
  • • [T3] +15% yield with Cyan 365® and only 3 applications at 1 Pint/Acre rate, it is +43 Box/Acre Vs the grower standard in [T1]
  • Best result to promote the yield in Box/Acre is [T5] micronutrients + Cyan 365® at 1 Qt/acre rate .
  • Best cost effective treatment, it is [T3] where Paradoxally Cyan 365® at the rate of 1 Pt/Acre applied only three times has a greater result than in [T2] Cyan 365® at 1Qt/Acre applied four times.

Notes: Following these results, we can imagine that the treatment with Cyan 365® at the rate of 1 Pt/acre + a micro nutritional solution might generate an even greater difference. This shall be experimented in 2019.

FRUIT COUNT at the period of time where PFD is occurring (in Number)

SPECIAL NOTE FROM THE SCIENTIST (Quote): "Normally when I conduct a fruit development study I determine the effect of Postbloom Fruit Drop (PFD) if treatments are applied during bloom.  The purpose is to determine if PFD was present in the test block and note any treatment effect on PFD.  Data collected for PFD evaluation includes counting the number of buttons and fruit across a given number of fruiting sites.  PFD causes the unique symptom of aborted fruit buttons.  By recording the total number of buttons and fruit, one can compute the percentage of fruit retention.  Fruit retention is a simple method to determine how well a given treatment performed keeping fruit on the tree.  What was interesting this year is that the aborted buttons fell off the tree during the spring.  An initial observation in April determined significant PFD was present in the trial as indicated from aborted fruit buttons; perhaps 40% fruit drop resulted from PFD.  However, the newly formed buttons dropped off towards the end of May.  I have conducted many PFD trials over the last few years and have never observed this event.  The same observation was made this year across several trials in Valencia Orange at different locations.  The percent fruit retention from PFD was not able to be calculated because few buttons were present across the entire test site.  The total number of fruit per 0.5 m^3 was counted and recorded on 17 April and 6 June.  Fruit was counted at about 5 ft in height at the mid-section each side of the tree (east vs west).  Both sides of the tree were evaluated and presented in the data table per side (1.5 m3) and total fruit per 3.0 m3.  Fruit drop from April to June is from both typical fruit drop and PFD." (M Edenfield, Ph.D)

This here under graph is showing the number of fruit remaning on the tree and not the number of the fruit found on the ground:

  • • Two fruit counts have occurred in this study to monitore the possible presence of PFD.
  • • Fruit count are the remaining fruits on the tree as per method "total number of fruit per 0.5 m^3 counted and recorded on the canopy"
  • • ONLY THREE applications have been achieved at June 2018 for treatments 2,4,5, means three Quarts/Acre total of Cyan 365® and over these three applications.
  • • ONLY TWO applications achieved at June 2018 for treatment 3, which is the equivalent of 1 Quart per acre total of Cyan 365® and over these two applications. 
  • First count: April 18th 2018, results:
    • Fruit count (number): 73.5 [T1]; 95.5 [T2]; 93.7 [T3]; 94.5 [T4]; 90.7 [T5]
  • Second count: June 6th 2018, results:
    • Fruit count (number): 48.8 [T1]; 57 [T2]; 53.3 [T3]; 51 [T4]; 57.7 [T5]
  • • Results between these two dates of fruit counting Vs the check in [T1] (in%): +18.2% [T5]; +17% [T2]; +9.2% [T3]; +4.5% [T4]
  • [T5] MicroN+Cyan 365® at 1 Qt/Acre rate is the most effective treatment to help at keeping the fruits on the tree.
  • • [T2] Cyan 365® by itself at the rate of 1 Qt/Acre is the second most effective treatment to help at keeping the fruits on the tree. 1.2% is the difference recorded between the two treatments (T5 & T2), with or without the MicroN formula. It seems obvious that most activity is obtained by Cyan 365®.

 

  • Note: by passing the cursor on the bars, you will obtain the real data.

Notes from the scientist: Fruit drop from April to June is from both typical fruit drop and PFD. According a special note from the scientist here above, there is a suspicion of about 40% PFD disease severity for this trial.

JUICE CONTENT (Lb solids per Acre)
JUICE CONTENT (Lb Solid/Acre)
  • Results at Dec 2018 (Lb/Acre): 1590 [T1]; 1761 [T2]; 1948 [T3]; 1796 [T4]; 1988 [T5]
  • • Four applications total per treatment performed at December 2018 (T2 and T5) except for [T3] only 3 applications total.
  • • Rate of Cyan 365® for Treatments [T2] & [T5] = 1 Qt/Acre 
  • • Rate of Cyan 365® for treatment [T3] = 1 Pt/Acre
  • [T5] Mircronutrients+ Cyan 365® at 1 Qt/acre rate is the best treatment to improve the juice content.
  • +25% Lb Solid/Acre with [T5] Vs Grower Std [T1] with 4 applications of MicroN+Cyan 365® at 1 Qt/acre rate
  • • +22.5% Lb Solid/Acre with [T3] Vs Grower Std [T1] with 3 applications of Cyan 365® at 1 Pt/acre rate with NO MicroN added
  • • +13% for [T4] with NO Cyan 365® but MicroN only
  • • +11% for [T2] Cyan 365® at 1 Qt/Acre with NO MircroN added

Notes: Following these results, we can imagine that the treatment with Cyan 365® at the rate of 1 Pt/acre + a micro nutritional solution might generate an even greater difference. This shall be experimented in 2019.