Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

How Does the Addition of Biostimulants Affect the Growth, Yield, and Quality Parameters of the Snap Bean (Phaseolus vulgaris L.)? How Is This Reflected in Its Nutritional Value?

Aly Farag El Sheikha, Ayman Younes Allam, Mohamed Taha, Theodoros Varzakas

Applied Sciences · 2022

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Summary

This field trial evaluated four natural biostimulants (humic acid, vermicompost tea, moringa leaf extract, and yeast extract) applied to snap beans in a randomised block design with three replicates. Moringa leaf extract demonstrated the strongest effects on growth and yield parameters, whilst all tested biostimulants improved amino acid profiles. The findings suggest that biostimulants, particularly moringa leaf extract and vermicompost tea, can enhance both agronomic performance and nutritional value of snap beans as a plant-based food.

UK applicability

These findings on biostimulant efficacy for snap beans may be relevant to UK horticulture, though the study location is not specified in the abstract and climate, soil, and agronomic conditions should be verified before applying recommendations. UK growers seeking to optimise snap bean quality and nutritional density through eco-friendly inputs may find the moringa and vermicompost tea results of interest.

Key measures

Plant height, number of leaves and branches per plant, fresh and dry weight, stem diameter, chlorophyll content, crop and pod quality, amino acid profile

Outcomes reported

The study assessed the effects of four natural biostimulants on snap bean growth, yield, chlorophyll content, chemical composition, and amino acid profiles compared to untreated controls. Measured parameters included plant height, leaf and branch number, fresh and dry weight, stem diameter, pod quality, and nutritional composition.

Theme
Nutrition & health
Subject
Crop nutrient density & mineral composition
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
System type
Horticulture
DOI
10.3390/app12020776
Catalogue ID
SNmov0fmra-wyuqt1

Topic tags

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