Articles
In planta evaluation of phosphorus solubilizing microorganisms using the Trait Finder digital phenotyping system
Article number
1426_38
Pages
275 – 282
Language
English
Abstract
Phosphorus (P) is an essential nutrient with low availability for plant uptake.
High media pH levels can cause the formation of insoluble compounds with calcium (Ca). Phosphorus solubilizing bacteria (PSB) can enhance P availability for plant uptake by producing organic acids to acidify the rhizosphere.
The identification of PSBs requires both in vitro and in planta evaluations.
In vitro protocols allow for the screening of extensive bacterial collections, but the number of bacterial isolates that can be tested in the greenhouse is limited by the amount of space and time required to evaluate the plant responses to PSB inoculation.
Digital phenotyping is an emerging tool for high throughput and precise evaluation of plant performance and health.
This project aimed to evaluate the performance of plants inoculated with phosphorus solubilizing microorganisms (PSM) using digital phenotyping with the TraitFinder (Phenospex) Greenhouse system.
Five PSM were tested in a greenhouse experiment with marigold (Tagetes patula) ‘Durango Orange’, radish (Raphanus sativus) ‘Cherry Belle’, and tomato (Solanum lycopersicum) ‘Bush Beef Steak’. PSM treatments included: three bacteria from the Jones lab (OSU1, OSU2, and OSU3) and two microbial-based products (Lalrise Vita and MycoApply Endo). Plants were grown in a peat-based substrate and irrigated with 100 mg L‑1 N from a 15-0-15 fertilizer.
P was provided weekly as insoluble Ca2(PO4)3 via drench.
Lalrise Vita promoted growth in all plant species evaluated.
Lalrise Vita also improved marigold health, which was assessed using the green leaf index (GLI) and plant senescence reflectance index (PSRI).
High media pH levels can cause the formation of insoluble compounds with calcium (Ca). Phosphorus solubilizing bacteria (PSB) can enhance P availability for plant uptake by producing organic acids to acidify the rhizosphere.
The identification of PSBs requires both in vitro and in planta evaluations.
In vitro protocols allow for the screening of extensive bacterial collections, but the number of bacterial isolates that can be tested in the greenhouse is limited by the amount of space and time required to evaluate the plant responses to PSB inoculation.
Digital phenotyping is an emerging tool for high throughput and precise evaluation of plant performance and health.
This project aimed to evaluate the performance of plants inoculated with phosphorus solubilizing microorganisms (PSM) using digital phenotyping with the TraitFinder (Phenospex) Greenhouse system.
Five PSM were tested in a greenhouse experiment with marigold (Tagetes patula) ‘Durango Orange’, radish (Raphanus sativus) ‘Cherry Belle’, and tomato (Solanum lycopersicum) ‘Bush Beef Steak’. PSM treatments included: three bacteria from the Jones lab (OSU1, OSU2, and OSU3) and two microbial-based products (Lalrise Vita and MycoApply Endo). Plants were grown in a peat-based substrate and irrigated with 100 mg L‑1 N from a 15-0-15 fertilizer.
P was provided weekly as insoluble Ca2(PO4)3 via drench.
Lalrise Vita promoted growth in all plant species evaluated.
Lalrise Vita also improved marigold health, which was assessed using the green leaf index (GLI) and plant senescence reflectance index (PSRI).
Publication
Authors
J. Quijia-Pillajo, S. Naik, L. Chapin, M.L. Jones
Keywords
calcium phosphate, controlled environment agriculture, digital phenotyping, PGPR, soilless substrate
Groups involved
- Division Precision Horticulture and Engineering
- Division Greenhouse and Indoor Production Horticulture
- Working Group Nettings in Horticulture (subgroup of Protected Cultivation in Mild Winter Climates)
- Working Group Light in Horticulture
- Working Group Organic Greenhouse Horticulture
- Working Group Vegetable Grafting
- Working Group Modelling Plant Growth, Environmental Control, Greenhouse Environment
- Working Group Protected Cultivation, Nettings and Screens for Mild Climates
- Working Group Computational Fluid Dynamics in Agriculture
- Working Group Design and Automation in Integrated Indoor Production Systems
- Working Group Mechanization, Digitization, Sensing and Robotics
- Working Group Greenhouse Environment and Climate Control
- Division Landscape and Urban Horticulture
- Commission Agroecology and Organic Farming Systems
- Division Vegetables, Roots and Tubers
- Working Group Vertical Farming
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