What question did this study set out to answer?

To evaluate the agronomic and physiological effects of two plant- and microbial-derived protein hydrolysate formulations applied at very low foliar rates on greenhouse tomato and common bean.

September 17, 2026Discover AgricultureOpen Access

Unraveling effects of foliar protein hydrolysates on growth, physiology and water-use efficiency of greenhouse tomato and common bean

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Authors

FBFereshteh BayatMcMaster University TNThuy Huu NguyenUniversity of Bonn TGThomas GaiserUniversity of Bonn

Discussion

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Overview

Controlled greenhouse trial reveals species-specific growth and physiological benefits of low-dose foliar protein hydrolysates in crops, highlighting formulation-dependent biostimulant efficacy.

Key Points

To evaluate the agronomic and physiological effects of two plant- and microbial-derived protein hydrolysate formulations applied at very low foliar rates on greenhouse tomato and common bean.
Tested two novel protein hydrolysate formulations (AM2025 and MP2025) applied twice as foliar sprays at 0.05% and 0.1% (v/v) (0.5 and 1.0 mL/L).
Grew Solanum lycopersicum (tomato) and Phaseolus vulgaris (common bean) under controlled greenhouse conditions.
Assessed vegetative growth, leaf area, shoot biomass, chlorophyll content (SPAD), net photosynthetic rate, and water-use efficiency.
In tomato, treatments significantly enhanced leaf area, shoot biomass, SPAD chlorophyll content, net photosynthetic rate, and water-use efficiency, with strong formulation-by-rate interactions.
In common bean, physiological and growth responses were more limited and variable, though increases in shoot dry weight, leaf area, and intrinsic water-use efficiency were observed.
Both biostimulant formulations exhibited notable biological activity at concentrations lower than conventional application rates.

Cite This Study

Bayat et al. (2026) studied this question.

synapsesocial.com/papers/6aabb6725f706d05830e4f8e https://doi.org/10.1007/s44279-026-00771-5

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September 17, 2026Discover AgricultureOpen Access

Unraveling effects of foliar protein hydrolysates on growth, physiology and water-use efficiency of greenhouse tomato and common bean

View Full Paper

Ask AI

Bookmark

Authors

FBFereshteh BayatMcMaster University TNThuy Huu NguyenUniversity of Bonn TGThomas GaiserUniversity of Bonn

Discussion

Member takes

Overview

Controlled greenhouse trial reveals species-specific growth and physiological benefits of low-dose foliar protein hydrolysates in crops, highlighting formulation-dependent biostimulant efficacy.

Key Points

To evaluate the agronomic and physiological effects of two plant- and microbial-derived protein hydrolysate formulations applied at very low foliar rates on greenhouse tomato and common bean.
Tested two novel protein hydrolysate formulations (AM2025 and MP2025) applied twice as foliar sprays at 0.05% and 0.1% (v/v) (0.5 and 1.0 mL/L).
Grew Solanum lycopersicum (tomato) and Phaseolus vulgaris (common bean) under controlled greenhouse conditions.
Assessed vegetative growth, leaf area, shoot biomass, chlorophyll content (SPAD), net photosynthetic rate, and water-use efficiency.
In tomato, treatments significantly enhanced leaf area, shoot biomass, SPAD chlorophyll content, net photosynthetic rate, and water-use efficiency, with strong formulation-by-rate interactions.
In common bean, physiological and growth responses were more limited and variable, though increases in shoot dry weight, leaf area, and intrinsic water-use efficiency were observed.
Both biostimulant formulations exhibited notable biological activity at concentrations lower than conventional application rates.

Cite This Study

Bayat et al. (2026) studied this question.

synapsesocial.com/papers/6aabb6725f706d05830e4f8e https://doi.org/10.1007/s44279-026-00771-5

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