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Lisianthus "Maurine Blue" Research |
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PGA PLUS RESEARCH AT
UNIVERSITY OF FLORIDA (TRIAL 1)
Protocol:
Organica Plant Growth
Activator Plus (PGA PLUS) was applied to 10 week - old Lisianthus "Maurine
Blue" grown in 6 packs containing a peat based medium.
A randomized complete
block design with 6 replications consisting of an individual six-pack per
treatment and non-treated control replication was used. The plants were
maintained at 28 degrees C / 82 degrees F and exposed to a 12 hour / 12 hour
light / dark cycle.
The plants were
inoculated with 15 ml soil drench containing 1x 10 to the 6Th microconidia / ml
of the active fungal pathogen Fusarium oxysporum (a very high dose).
Plants were examined
for disease incidence and mortality once a week for 6 weeks.
Applications Rates
& Timing of PGA PLUS
1) Initial
Application:
Occurred 7 days after
transplantation of Lisianthus into 6 packs. One (1) pound of PGA Plus was
dissolved in 100 gallons of water and 10 ml of this solution was applied as a
soil drench. This rate equates to 2 oz. per 1000 sq. ft or standard label
rate.
2)
Subsequent Applications:
Occurred 24 hours prior to
inoculation of the active fungal pathogen Fusarium oxysporum. During the 6 week
trial PGA Plus was applied at 2 week intervals. For all of the subsequent
applications two (2) ounces of PGA Plus was dissolved in 100 gallons of water
and 10 ml of this solution was applied as a soil drench. This equates to 0.25
ounces per 1000 sq. ft. or one-eighth the label rate.
Sampling of Test
Results
| PRODUCT |
FINAL MORTALITY |
AUMPC |
PLANT HEIGHT (cm) |
| Control |
69.4 % |
1220.2 |
10.5 |
| AtEze |
61.1 % |
1171.0 |
10.2 |
| PGA Plus |
41.6 % |
399.5 |
12.4 |
| Heritage |
25.0 % |
295.0 |
11.6 |
AUMPC is an indicator of
how rapidly plants die, high AUMPC # indicates rapid death rate PGA Plus
applied initially at label rate subsequent applications were at (1/8 LABEL
RATE) AtEze was applied at 26 oz. per 100 gallons for all applications (FULL
LABEL RATE) Heritage was applied at 0.9 oz. per 100 gallons for all
applications (FULL LABEL RATE)
TEST PERFORMED BY DR. BOB
McGOVERN @ UNIVERSITY OF FLORIDA - IFAS |
For more
information on the effectiveness of PGA+, please see the latest research
studies -
Lisianthus "Maurine Blue"- PGA PLUS Research -
University of Florida (Trial 2)
Basil Seed Research using PGA (Plant Growth
Activator) - University Of Florida
Baron
Kentucky Bluegrass - PGA PLUS Research at Rutgers
Return to: PGA (Plant Growth Activator)
or to - Step 1- Treat your Soil
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