Plant Physiologist
Current
Jul 2023 - Present
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John Ertle Email & Phone Number
Plant Physiologist @ PP Systems | PhD, MS in Horticulture and Crop Science
at
PP Systems
2 work emails found
@osu.edu
LinkedIn matched
✓ Verified May 2026
4 data sources
Profile completeness 100%
Current company
Role
Plant Physiologist @ PP Systems | PhD, MS in Horticulture and Crop Science
Location
Amesbury, Massachusetts, United States
Company size
Who is John Ertle? Overview
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Quick answer
John Ertle is listed as Plant Physiologist @ PP Systems | PhD, MS in Horticulture and Crop Science at PP Systems, a company with 11 employees, based in Amesbury, Massachusetts, United States. AeroLeads shows a work email signal at osu.edu and a matched LinkedIn profile for John Ertle.
John Ertle previously worked as Plant Physiologist at Pp Systems and Graduate Research Assistant (PhD) - Dr. Chieri Kubota CEPPT Lab at The Ohio State University. John Ertle holds Doctor Of Philosophy - Phd, Horticultural Science from The Ohio State University.
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*@osu.edu
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Profile bio
About John Ertle
With a PhD in Horticultural Science from The Ohio State University, my journey led me to become a Plant Physiologist at PP Systems, where my core competencies lie in controlled environment agriculture (CEA), crop management, plant physiology, and development of research instrumentation. The educational foundation laid through rigorous research on tipburn in hydroponically grown lettuce, and abiotic stress of grafted fruiting vegetable crops, has been pivotal to my current role, where I apply my skills in to drive advancements in plant health, management, and production.My tenure as a Graduate Research Assistant was marked by the publication of multiple manuscripts and an industry survey that helped shaped commercial grafted plant production practices. At PP Systems, our team leverages this expertise to understand the effects of plant-environment interactions, thus enhancing yield and quality, improving management practices, and capturing important physiological data. My commitment to innovation, technology, and sustainable agriculture aligns seamlessly with our company’s mission, as we collectively strive to deliver research-driven solutions for the betterment of global food systems.
Listed skills include Customer Service, Microsoft Excel, Microsoft Word, Powerpoint, and 6 others.
Current workplace
John Ertle's current company
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Pp Systems
6 roles · 11 years
John Ertle work experience
A career timeline built from the work history available for this profile.
Graduate Research Assistant (Phd) - Dr. Chieri Kubota Ceppt Lab
- PhD: Risk Management of Tipburn in Hydroponically Grown Lettuce for Controlled Environment Agriculture; 2020 – 2023Funding: USDA – NIFA – SCRI (Project Number: 2019-51181-30017) | PI: Dr. Chieri KubotaOutcomes:
- 4 published manuscripts (2 in review) to evaluate performance of tipburn-resistant commercial cultivars and recommend new strategies to avoid tipburn risk.
- Confirmed efficacy of existing tipburn-prevention strategies, and economic analysis of their cost-benefit.
- Deepened physiological understanding of this nutrient deficiency, and improved grower recommendations for cultivar selection and strategy implementation.
Aug 2020 - Jun 2023
Graduate Research Assistant (Ms) - Dr. Chieri Kubota Ceppt Lab
- MS: Transportation Studies of Grafted Fruiting Vegetable Crops; 2018 – 2020Funding: USDA – NIFA (Project Number: 2016-51181-25404) | PI: Dr. Chieri KubotaOutcomes:
- 2 manuscripts, 1 thesis, and 1 industry survey published to characterize industry trends in commercial grafted plant production, and maintenance of plant health to maximize quality.
- Developed a validated model to assess health of grafted plants in response to chilling temperatures experienced during typical shipping cycles.
- Identified effects of abiotic stress on reproductive development and subsequent delays in fruit production to optimize grower outcomes.
Aug 2018 - Aug 2020
Undergraduate Research Assistant
The University Of Akron - Dr. Randy Mitchell Ecology Lab
- While in the Ecology lab, I worked on three main projects:
- Pollen Identification and Concentration of Sampled Mimulus ringens Wildflowers to determine cross-pollination of native species by pollinating insects.
- Bath, OH, Native Bog Restoration Project to assess habitat quality and restoration project efficacy.
- Ohio Bee Atlas Project to quantify species abundance and diversity of native pollinators and plant relationships. https://doi.org/10.1002/ecs2.4425
2016 - Aug 2018
Horticultural Technician
At this vertical farm startup, I was responsible to construct custom plant cultivation racks, plumb nutrient and waste lines, install LED lights, and manage farm setups. Subsequently, my responsibilities became seed-to-sale of microgreens, herbs, and leafy greens. Daily tasks included seeding, transplanting, harvesting, packaging, shipping, and quality.
Jan 2017 - Dec 2017
Undergraduate Research Assistant
The University Of Akron - Dr. Michael Konopka Biophysical Chemistry Lab
Measurement of Single-Cell Respiration and Laser Confocal Microscopy of E. coli and Mammalian Mitochondria to develop novel techniques for use in cancer treatments. Techniques included Fluorescence Recovery After Photobleaching (FRAP) analyses.
2015 - 2017
~2 yrs
Team & coworkers
Colleagues at PP Systems
Other employees you can reach at ppsystems.com. View company contacts for 11 employees →
MS
Mike Spenard
Colleague at Pp Systems
Manchester, New Hampshire, United States, United States
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JF
Jan Forsythe
Colleague at Pp Systems
United States, United States
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ML
Michael Lavery
Colleague at Pp Systems
Billerica, Massachusetts, United States, United States
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TD
Tim Doyle
Colleague at Pp Systems
Billerica, Massachusetts, United States, United States
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LO
Liam O.
Colleague at Pp Systems
Haverhill, Massachusetts, United States, United States
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RF
Robert Fowler
Colleague at Pp Systems
Amesbury, Massachusetts, United States, United States
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Mike Spenard
Colleague at Pp Systems
Manchester, New Hampshire, United States, United States
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JF
Jan Forsythe
Colleague at Pp Systems
United States, United States
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ML
Michael Lavery
Colleague at Pp Systems
Billerica, Massachusetts, United States, United States
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TD
Tim Doyle
Colleague at Pp Systems
Billerica, Massachusetts, United States, United States
View →
LO
Liam O.
Colleague at Pp Systems
Haverhill, Massachusetts, United States, United States
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RF
Robert Fowler
Colleague at Pp Systems
Amesbury, Massachusetts, United States, United States
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3 education records
John Ertle education
Doctor Of Philosophy - Phd, Horticultural Science
Master Of Science - Ms, Horticultural Science
Bachelor Of Science - Bs, Biology/Biological Sciences, General
FAQ
Frequently asked questions about John Ertle
Quick answers generated from the profile data available on this page.
What company does John Ertle work for?
John Ertle works for PP Systems.
What is John Ertle's role at PP Systems?
John Ertle is listed as Plant Physiologist @ PP Systems | PhD, MS in Horticulture and Crop Science at PP Systems.
What is John Ertle's email address?
AeroLeads has found 2 work email signals at @osu.edu for John Ertle at PP Systems.
Where is John Ertle based?
John Ertle is based in Amesbury, Massachusetts, United States while working with PP Systems.
What companies has John Ertle worked for?
John Ertle has worked for Pp Systems, The Ohio State University, The University Of Akron - Dr. Randy Mitchell Ecology Lab, Vigeo Gardens, and The University Of Akron - Dr. Michael Konopka Biophysical Chemistry Lab.
Who are John Ertle's colleagues at PP Systems?
John Ertle's colleagues at PP Systems include Mike Spenard, Jan Forsythe, Michael Lavery, Tim Doyle, and Liam O..
How can I contact John Ertle?
You can use AeroLeads to view verified contact signals for John Ertle at PP Systems, including work email, phone, and LinkedIn data when available.
What schools did John Ertle attend?
John Ertle holds Doctor Of Philosophy - Phd, Horticultural Science from The Ohio State University.
What skills is John Ertle known for?
John Ertle is listed with skills including Customer Service, Microsoft Excel, Microsoft Word, Powerpoint, Social Media, Microsoft Office, Teamwork, and Time Management.
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