Study Investigator: M. Edenfield, Phd
Location of Study: Florida, USA, Commercial field
Study Period: Feb 2018 - Sept 2018
1 Quart/Acre
PRE BLOOM
1 Quart/Acre
BLOOM - POST BLOOM
1 Quart/Acre
FALL
1 Pint/Acre
POST BLOOM
1 Pint/Acre
FALL
1 Quart/Acre
PRE BLOOM
1 Quart/Acre
BLOOM - POST BLOOM
1 Pint/Acre
FALL
FRUIT COUNT:
Primary counts per 3.0m3 about 3.92 Y3 (+/-30%)
• 04/07/18
• 06/05/18
• 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
• 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.
YIELD and JUICE CONTENT
• 12/18/18 date of measurement
• 4 trees per plot monitored
• Unit of count = 90Lb boxes per Acre
• Lb solids per Acre (Juice content)
JUICE QUALITY
• Fall 2018 date of measurement
• Acids and Brix
• Brix ratio
• Lb solids per box
Objectives: To demonstrate the ability of CYAN 365® to improve to help to grow more quality Fruit and yield
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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 m3 was counted and recorded on 7 April and 5 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)
Special notes from the scientist:
• Quote: "Optimal citrus growing conditions were observed this year in the test block.Good rainfall during the fall and improved Citrus Greening foliar fertilizer programs resulted in a yield increase of more than double compared to the previous 4 years. Because of this overall yield increase, research treatments were not as effective in improving yield to what may have been observed in previous years." (M Edenfield, Ph.D)
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.
Notes: 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.
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.
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.
Notes: Cyan 365® in this treatment has been applied 3 times as here after: Application (A): 02/23/18, when trees were at bud swell and 1% bloom present.(Pre Bloom). Application (B): 03/19/18, when 99% of the fruit had set (1% bloom present). (Post Bloom). Application (C): 09/23/18, at fall.
Notes: Cyan 365® in this treatment has been applied 3 times as here after: Application (A): 02/23/18, when trees were at bud swell and 1% bloom present.(Pre Bloom). Application (B): 03/19/18, when 99% of the fruit had set (1% bloom present). (Post Bloom). Application (C): 09/23/18, at fall.
Notes: After [T5], [T3] Cyan 365® at 1 Pt/acre rate is producing the best second treatment. Accordingly, it would have been interesting to try Cyan 365® at 1 Pt/acre rate combined with this micronutritional solution.