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The Influence of Biostimulants on Tomato Plants Cultivated under Hydroponic Systems Cover

The Influence of Biostimulants on Tomato Plants Cultivated under Hydroponic Systems

Open Access
|Oct 2021

Figures & Tables

Figure 1

Root length at transplanting (35 days after seeding) of tomato seedlings hybrid cultivar ‘Merlice’, influenced by seeds soaking in biostimulants Radifarm and RutfarmMaxifol. The different letters indicate significant differences between the treatments at p < 0.05 established by Tukey’s multiple range test; values represent means ± SD
Root length at transplanting (35 days after seeding) of tomato seedlings hybrid cultivar ‘Merlice’, influenced by seeds soaking in biostimulants Radifarm and RutfarmMaxifol. The different letters indicate significant differences between the treatments at p < 0.05 established by Tukey’s multiple range test; values represent means ± SD

Figure 2

Relative growth rate (A1, A2), crop growth rate (B1, B2), and net assimilation rate (C1, C2) of tomato hybrid cultivar ‘Merlice’, influenced by biostimulators – Radifarm: RF 2.5, RF 5.0, and RF 7.5; RutfarmMaxifol: SW 2.5, SW 5.0, and SW 7.5 + control (nontreated) under hydroponic system
Relative growth rate (A1, A2), crop growth rate (B1, B2), and net assimilation rate (C1, C2) of tomato hybrid cultivar ‘Merlice’, influenced by biostimulators – Radifarm: RF 2.5, RF 5.0, and RF 7.5; RutfarmMaxifol: SW 2.5, SW 5.0, and SW 7.5 + control (nontreated) under hydroponic system

Figure 3

Yield components: number of fruits per plant (A), fruit weight (B), fruit yield (kg per plant) (C) of hybrid cultivar ‘Merlice’, influenced by biostimulants under hydroponic system. The different lower case letters indicate significant differences between the treatments at p < 0.05 established by Tukey’s multiple range test; values represent means ± SD
Yield components: number of fruits per plant (A), fruit weight (B), fruit yield (kg per plant) (C) of hybrid cultivar ‘Merlice’, influenced by biostimulants under hydroponic system. The different lower case letters indicate significant differences between the treatments at p < 0.05 established by Tukey’s multiple range test; values represent means ± SD

Figure 4

Biochemical parameters: dry matter (A), total soluble solid (B), ascorbic acid (C), carotenoid contents (D), acidity (E), and nitrate contents in tomato fruits hybrid cultivar ‘Merlice’ (F), influenced by biostimulants under hydroponic system. The different lower case letters indicate significant differences between the treatments at p < 0.05 established by Tukey’s multiple range test; values represent means ± SD
Biochemical parameters: dry matter (A), total soluble solid (B), ascorbic acid (C), carotenoid contents (D), acidity (E), and nitrate contents in tomato fruits hybrid cultivar ‘Merlice’ (F), influenced by biostimulants under hydroponic system. The different lower case letters indicate significant differences between the treatments at p < 0.05 established by Tukey’s multiple range test; values represent means ± SD

Figure 5

Maturity degree (A) and taste index of tomato fruits hybrid cultivar ‘Merlice’ (B), applied with two biostimulants under hydroponic system. The different lower case letters indicate significant differences between the treatments at p < 0.05 established by Tukey’s multiple range test; values represent means ± SD
Maturity degree (A) and taste index of tomato fruits hybrid cultivar ‘Merlice’ (B), applied with two biostimulants under hydroponic system. The different lower case letters indicate significant differences between the treatments at p < 0.05 established by Tukey’s multiple range test; values represent means ± SD

Biometric parameters of tomato plants under the influence of biostimulators (mg·L−1) under hydroponic system

Biometric parametersDays after plantingControlRF 2.5RF 5.0RF 7.5RM 2.5RM 5.0RM 7.5
Plant height (cm)3517.9 ± 2.0 d18.0 ± 1.7 d21.2 ± 2.1 ab21.5 ± 2.3 a20.1 ± 2.1 c20.9 ± 1.3 b21.0 ± 1.4 b
70143.5 ± 5.8 b146.5 ± 6.6 b171.5 ± 7.3 a178.0 ± 7.0 a159.2 ± 7.3 ab171.0 ± 5.6 a174.0 ± 6.1 a
105174.5 ± 7.9 d180.0 ± 8.6 d193.5 ± 9.0 c197.5 ± 10.7 bc198.5 ± 10.3 bc206.5 ± 9.4 b217.0 ± 9.3 a
Number of leaves356.5 ± 0.28 c6.8 ± 0.68 bc7.2 ± 0.74 ab7.2 ± 0.35 ab6.8 ± 0.67 bc7.3 ± 0.71 ab7.5 ± 0.80 a
7032.1 ± 2.1 d37.1 ± 1.9 bc39.1 ± 2.6 ab40.6 ± 2.4 a35.9 ± 1.9 c37.6 ± 1.6 bc39.0 ± 2.2 ab
10543.6 ± 2.8 c50.0 ± 2.2 bc52.4 ± 2.4 ab53.9 ± 2.2 a48.4 ± 2.2 c50.5 ± 1.8 bc52.0 ± 2.7 ab
Plant fresh weight (g)359.7 ± 1.0 d9.9 ± 0.9 d10.7 ± 1.1 c11.7 ± 1.2 b10.5 ± 1.0 c12.4 ± 1.2 ab13.0 ± 1.3 a
70150.7 ± 7.3 c151.1 ± 8.4 c152.8 ± 6.6 bc154.7 ± 7.9 b154.2 ± 7.0 bc158.9 ± 8.7 a161 ± 7.2 a
105201.4 ± 10.8 c216.1 ± 11.1 bc230.2 ± 12.8 b238.7 ± 12.2 ab204.0 ± 12.0 c249.7 ± 16.9 a251.0 ± 14.3 a
Plant dry weight (g)352.4 ± 0.1 e2.6 ± 0.3 de2.7 ± 0.2 cd2.8 ± 0.1 cd2.8 ± 0.2 bc3.1± 0.1 ab3.3 ± 0.2 a
7019.1 ± 2.1 d22.1 ± 2.2 c28.8 ± 2.6 b30.4 ± 2.7 ab24.2 ± 2.4 c30.9 ± 3.0 ab32.0 ± 1.8 a
10546.5 ± 2.7 d55.1 ± 3.0 c58.9 ± 2.3 b60.3 ± 3.5 b58.9 ± 3.3 b73.3 ± 4.0 a75.0 ± 4.2 a
Total leaf area per plant (dm2)350.47 ± 0.01 c0.55 ± 0.01 bc0.59 ± 0.1 b0.60 ± 0.02 b0.59 ± 0.01 b0.73± 0.02 a0.75 ± 0.02 a
7021.2 ± 0.68 b23.4 ± 0.67 a24.1 ± 0.89 a23.8 ± 0.80 a23.4 ± 0.75 a23.8 ± 0.73 a23.6 ± 0.80 a
10533.2 ± 1.6 ab33.6 ± 1.3 a34.0 ± 1.8 a33.9 ± 1.9 a32.8 ± 1.7 b33.4 ± 1.8 a34.1 ± 1.5 a
DOI: https://doi.org/10.2478/johr-2021-0012 | Journal eISSN: 2353-3978 | Journal ISSN: 2300-5009
Language: English
Page range: 107 - 116
Submitted on: Dec 1, 2020
Accepted on: Jul 1, 2021
Published on: Oct 28, 2021
Published by: National Institute of Horticultural Research
In partnership with: Paradigm Publishing Services
Publication frequency: 2 times per year

© 2021 Mostafa M. Abdelkader, Magomed S. Gaplaev, Aslambek A. Terekbaev, Mikhail Y. Puchkov, published by National Institute of Horticultural Research
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.