Physiological efficiency during the vegetative stage of tomato crops developed from magnetically treated seeds

Published: 25 June 2024| Version 1 | DOI: 10.17632/7xp5zd7vgy.1
, Carolina Zamorano-Montañez


This study aimed to identify whether the positive effects found in the germination time of the magnetically treated tomato seeds are conserved until the vegetative stage, and how the value of morphological parameters change. Plant height, stem diameter, and leaf number were directly and independently correlated with time, whereas chlorophyll content and leaf area were time-dependent. 225 experimental units (one tomato plant) were divided into three experimental groups of 75 plants each. It has data for tree treatments: (T1) Santa clara cultivar plants generated from magnetically treated seeds; T2 (control 1) Santa Clara plants generated from seeds without magnetic treatment, and T3, a high cost seed cultivar (Roble hybrid) as secondary control.


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The plant response variables were stem diameter (Φs) measured at the insertion point of the cotyledons with a digital caliper (±0.000 1 m) (Mitutoyo CD-8” CSX-B, Aurora, IL), plant height (PH) quantified with a laser distance meter (±0.001 m) (Fluke 480D, Everett, WA), placed vertically from the surface of the substrate to shoot apical meristem, and leaf area (LA) measurements performed using the Easy leaf area free mobile application, version 1.02 . To determine the number of leaves (NL) per plant, only plants with more than three fully unfolded leaflets were considered. Total chlorophyll content (TCC) was quantified using a portable chlorophyllometer (Spad 502 Plus, Konica Minolta INC, Osaka, Japan) on two random leaves per plant between 11:00 AM and noon. All variables were measured twice a week from the fourth day after transplanting (DAT) until 28 days.


Universidad de Caldas


Agronomy, Horticulture Studies


Ministerio de Ciencia, Tecnología e Innovación

Convocatoria de creación y fortalecimiento de SPIN-OFF Minciencias-Colombia


Agreement “Proof of License of the technology -Magnetic seed treatment"

Universidad de Caldas