Assessment of biostimulants in combination with cultivar and growth conditions in greenhouse-grown tomatoes : research data underlying the article

Pirih, Kris (author), Slatnar, Ana (author), Šircelj, Helena (author), Zamljen, Tilen (author), Grohar, Mariana Cecilia (author)

This dataset originates from a 2024 greenhouse experiment aiming to assess whether the combined application of two commercial biostimulants—Humistar® (soil‑applied) and Delfan Plus® (foliar‑applied) (Tradecorp, Rovensa, Madrid, Spain)—could surpass their individual effects on the tomato performace and fruit quality traits throughout a heatwave growing season, and whether these responses were cultivar‑dependent. The study involved two indeterminate tomato cultivars, ‘Codino F1’ and ‘Graziano F1’, which primarily differ in their tolerance to high temperatures. The dataset includes continuous fruit growth measurements obtained with DF4 dendrometers, leaf‑level physiological parameters recorded using a CI‑340 photosynthesis system and PAM‑2500 fluorometer, and biochemical profiling of leaves and fruits (photosynthetic pigments, tocopherols, carotenoids, phenolic compounds, sugars, organic acids, and vitamin C, quantified using HPLC‑DAD, fluorescence detection, UHPLC‑PDA‑MS, and dedicated chromatographic systems. Overall, the dataset reflects that cultivar characteristics and growing conditions exert the strongest influence on physiological and metabolic traits, while biostimulant effects (either alone or in combination) remain marginal.

• Language: English
• Keywords: physiology, morphology, biochemistry, quality, yield
• Typology: 2.20 - Complete scientific database of research data
• Organization: BF - Biotechnical Faculty
• Year: 2026
• PID: 20.500.12556/RUL-179703
• Data col. methods: Experiment
• Publication date in RUL: 23.02.2026

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Title: Ocena biostimulantov v kombinaciji s sorto in rastnimi pogoji pri pridelavi paradižnika v rastlinjaku : raziskovalni podatki, obravnavani v članku

Abstract

Podatki so bili pridobljeni s poskusom, izvedenim leta 2024 v rastlinjaku, katerega namen je bil oceniti, ali lahko kombinirana uporaba dveh komercialnih biostimulantov (Humistar® (talno apliciran) in Delfan Plus® (foliarno apliciran) (Tradecorp, Rovensa, Madrid, Španija)) preseže njun posamezni učinek na delovanje rastlin paradižnika in na kakovostne lastnosti plodov skozi rastno sezono, zaznamovano z vročinskimi valovi, ter ali so ti odzivi sortno specifični. V poskus sta bili vključeni dve sorti paradižnika (‘Codino F1’ in ‘Graziano F1’), ki se razlikujeta v toleranci na visoke temperature. Podatki vključujejo meritve rasti plodov, pridobljene z dendrometri DF4, fiziološke meritve, izmerjene z merilcem fotosinteze CI‑340 in fluorometrom PAM‑2500, ter biokemijsko sliko listov in plodov (tokoferoli, karotenoidi, fenolne spojine, sladkorji, organske kisline in vitamin C), določeno z uporabo HPLC‑DAD, fluorescenčne detekcije, UHPLC‑PDA‑MS in drugih kromatografskih sistemov. Na podlagi podatkov se nakazuje, da imata sorta in rastni pogoji največji vpliv na preučevane lastnosti, medtem ko so učinki biostimulantov (posamezno ali v kombinaciji) manjši.

• Keywords: fiziologija, morfologija, biokemija, kvaliteta, pridelek

Projects

• Funder: ARIS - Slovenian Research and Innovation Agency
• Funding programme: Young researchers