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Horticulturae
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Effects of Biostimulants on the Growth and Development of Horticultural...
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Effects of Biostimulants on the Growth and Development of Horticultural Crops

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Biotic and Abiotic Stress".

Deadline for manuscript submissions: 10 January 2025 | Viewed by 1498

Special Issue Editors

Dr. Jorge González-Villagra

E-Mail Website
Guest Editor
1. Departamento de Ciencias Agropecuarias y Acuícolas, Facultad de Recursos Naturales, Universidad Católica de Temuco, P.O. Box 15-D, Temuco, Chile
2. Núcleo de Investigación en Producción Alimentaria, Facultad de Recursos Naturales, Universidad Católica de Temuco, P.O. Box 15-D, Temuco, Chile
Interests: plant physiology and molecular biology; mechanisms of resistance in plants to different abiotic stresses; plant hormones
Dr. Marjorie Reyes-Díaz

E-Mail Website
Guest Editor
Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus (BIOREN-UFRO), Universidad de La Frontera, Temuco P.O. Box 54-D, Chile
Interests: abiotic stress; ecophysiology; molecular biology; phytohormones; plant physiology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

One of the primary challenges faced by the agriculture sector is enhancing food production to feed more than 9 billion people by 2050, while reducing the negative impacts on agroecosystems and contributing to sustainable agriculture. Thus, bioestimulants have become a promising agronomic tool and are widely considered a sustainable agricultural practice, with the ability to enhance the growth, yield and stress tolerance of plants, and improve the quality of food. However, more studies focused on horticultural crops under field conditions are needed.

Thus, the aim of this Special Issue of Horticulturae, entitled “Effects of Biostimulants on the Growth and Development of Horticultural Crops”, is to present advances regarding biostimulants and their effects on horticultural crops, as well as their contribution to sustainable agriculture. Biostimulants include substances and microorganisms (plant hormones, nanoparticles, microbial bioinoculants, humic acids, amino acids, seaweed extracts, and new ones) that improve the production of horticultural crops by upgrading the physiology and/or metabolic routes of plants, improving their nutrient uptake, and enhancing their tolerance to biotic and abiotic stress.

Dr. Jorge González-Villagra
Dr. Marjorie Reyes-Díaz
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Horticulturae is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • plant hormones
  • sustainable agriculture
  • plant physiology
  • tolerance to biotic and abiotic stresses

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Published Papers (2 papers)

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Research

18 pages, 9287 KiB  
Article
Foliar Methyl Jasmonate Application Activates Antioxidant Mechanisms to Counteract Water Deficits and Aluminum Stress in Vaccinium corymbosum L.
by Cristina Cáceres, Crystal Cazor-Curilef, Patricio Delgado-Santibañez, Mariana Machado, Mabel Delgado, Alejandra Ribera-Fonseca, Claudio Inostroza-Blancheteau, Leon A. Bravo, Jorge González-Villagra, Adriano Nunes-Nesi and Marjorie Reyes-Díaz
Horticulturae 2024, 10(11), 1172; https://doi.org/10.3390/horticulturae10111172 - 6 Nov 2024
Viewed by 434
Abstract
Due to climate change, water deficits (WDs) and aluminum (Al) toxicity are increasing, affecting plants, especially crops such as blueberries (Vaccinium corymbosum L.). The application of methyl jasmonate (MeJA) could mitigate these effects. This work aimed to evaluate the effective MeJA dose [...] Read more.
Due to climate change, water deficits (WDs) and aluminum (Al) toxicity are increasing, affecting plants, especially crops such as blueberries (Vaccinium corymbosum L.). The application of methyl jasmonate (MeJA) could mitigate these effects. This work aimed to evaluate the effective MeJA dose to overcome oxidative stress provoked by combined WD+Al stress in blueberries. Plants of Al-sensitive (Star) and Al-resistant (Legacy) cultivars were exposed to control (Al at 65 mg/Kg, 80% field capacity), WD+Al (50% field capacity; Al at 1665 mg/Kg), and WD+Al treatment with different foliar MeJA doses (10, 50, and 100 μM) during 7 and 21 days. Data revealed that plants exposed to WD+Al and treated with 50 µM MeJA reduced Al up to 3.2-fold in roots and 2.7-fold in leaves and improved water potential (Ψw) up to 2.5-fold. The sensitive cultivar decreased the relative growth rate under WD+Al, increasing by 1.9-fold with 50 µM MeJA. Under WD+Al stress, all MeJA doses mitigated the decrease in relative water content in Al-resistant cultivars, restoring values like control plants. In the sensitive cultivar, 50 µM MeJA increased photosynthesis (1.5-fold) and stomatal conductance (1.4-fold), without changes in transpiration. Lipid peroxidation decreased (1.2-fold) and increased antioxidant activity (1.8-fold), total phenols (1.6-fold), and superoxide dismutase activity (3.3-fold) under WD+Al and 50 µM-MeJA. It was concluded that the most effective dose to alleviate the WD+Al stress was 50 µM MeJA due to the activation of antioxidants in blueberry plants. Therefore, the MeJA application could be a potential strategy for enhancing the resilience of V. corynbosum exposed to WD+Al stress. Full article
(This article belongs to the Special Issue Effects of Biostimulants on the Growth and Development of Horticultural Crops)
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18 pages, 6488 KiB  
Article
The Effect of Humic-Based Biostimulants on the Yield and Quality Parameters of Chili Peppers
by Ivana Mezeyová, Ivana Kollárová, Marcel Golian, Július Árvay, Ján Mezey, Miroslav Šlosár, Lucia Galovičová, Robert Rosa, Martin Bakalár and Tereza Horečná
Horticulturae 2024, 10(9), 998; https://doi.org/10.3390/horticulturae10090998 - 20 Sep 2024
Viewed by 797
Abstract
Chili peppers are globally cultivated for their rich bioactive compound profile. This study investigates the impact of two biostimulants, Humix® and Energen, on Capsicum chinense ‘Habanero Orange’ and Capsicum annuum ‘Kristian’, focusing on quantitative and qualitative parameters. Conducted over two years with [...] Read more.
Chili peppers are globally cultivated for their rich bioactive compound profile. This study investigates the impact of two biostimulants, Humix® and Energen, on Capsicum chinense ‘Habanero Orange’ and Capsicum annuum ‘Kristian’, focusing on quantitative and qualitative parameters. Conducted over two years with three annual harvests, the research assesses the effects of biostimulant application on yield, fresh fruit number, fruit weight, drying ratio, capsaicin, dihydrocapsaicin, and ascorbic acid content (via HPLC-DAD analysis), as well as carotenoid levels (via spectrophotometric analysis). Biostimulant application significantly increased (p ≤ 0.05) total yields and capsaicin levels. Harvest timing also influenced dihydrocapsaicin and capsaicin levels, with the third harvest showing the highest values (p ≤ 0.001). The effects on ascorbic acid and carotenoids were variable and depended on genotype, harvest, and treatment. Thus, our study provides insights into the dynamic responses of Capsicum species to biostimulants under variable climatic conditions, contributing new knowledge to agricultural practices and the scientific understanding of biostimulant effects in Capsicum production. Full article
(This article belongs to the Special Issue Effects of Biostimulants on the Growth and Development of Horticultural Crops)
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