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Agronomy
Special Issues
Application of Allelochemicals in Agriculture
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Application of Allelochemicals in Agriculture

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Soil and Plant Nutrition".

Deadline for manuscript submissions: closed (31 January 2025) | Viewed by 2576

Special Issue Editors

Dr. Sofiene Kaab

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Guest Editor
Integrated and Urban Plant Pathology Laboratory, Gembloux Agro Bio-Tech, Univesity of Liege, 5030 Gembloux, Belgium
Interests: plant extracts; essential oils; phenolic compounds; biopesticides; bioherbicides; biological activities; abiotic stress in plants; phytochemistry; allelopathy; allelochemicals; phytotoxicity effect; herbicidal activity; green chemistry; fractionation; secondary metabolites; weed control biochemistry
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Natividad Chaves Lobón

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Guest Editor
Department of Plant Biology, Ecology and Earth Sciences, Faculty of Science, University of Extremadura, 06006 Badajoz, Spain
Interests: ecophysiology; allelopathy; ecological function of metabolism secondary; plant-plant interaction; plant-animal interaction
Special Issues, Collections and Topics in MDPI journals
Dr. Agnieszka Synowiec

E-Mail Website
Guest Editor
Department of Agroecology and Crop Production, University of Agriculture in Kraków, 31-120 Kraków, Poland
Interests: allelopathy; weed biology and ecology; weed resistance to herbicides
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Population explosion has caused global food insufficiency, which has become an open challenge for the global agricultural community and researchers. In addition, agricultural production has always been threatened by the presence of plant pathogens and weeds. The latter cause severe economic damages in up to 34% of field crops. It has been shown that allelochemical compounds hold promise as an alternative to chemical herbicides and as a new source of biostimulants for enhancing crop production under stress conditions, contributing to sustainable crop management. Furthermore, the allelopathic effect of many allelochemicals has been well confirmed in the literature, but to our knowledge, few studies have been focused on their application in agricultural fields. That is why in this Special Issue, we wish to focus on the application of allelochemicals in agriculture. This may involve allelopathic activity tests under greenhouse conditions and in the field, as well as isolating and identifying allelochemicals suitable for application in agriculture as plant protection products and biostimulants.

Dr. Sofiene Kaab
Prof. Dr. Natividad Chaves Lobón
Dr. Agnieszka Synowiec
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. Agronomy 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 2600 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

  • allelopathic effect
  • mode of action
  • formulation of bioherbicide
  • biological activity
  • essential oils
  • secondary metabolites
  • plant extracts
  • isolation of active compounds
  • botanical herbicide

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Published Papers (2 papers)

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Research

16 pages, 1526 KiB  
Article
Impact of Alternative Substrates on Plant Growth and Root Exudates in Plant Interactions: A Study on Secale cereale L. and Amaranthus retroflexus L.
by Elise De Snyders, Marie-Laure Fauconnier, Pauline Canelle, Judith Wirth and Aurélie Gfeller
Agronomy 2024, 14(12), 3000; https://doi.org/10.3390/agronomy14123000 - 17 Dec 2024
Cited by 1 | Viewed by 818
Abstract
This study investigates the effects of substrate composition on root architecture, plant growth, and allelopathic secondary metabolites, specifically benzoxazinoids (BXs), in the rhizospheres of rye (Secale cereale L.) and redroot pigweed (Amaranthus retroflexus L.). Given the complexities of root exudate analysis, [...] Read more.
This study investigates the effects of substrate composition on root architecture, plant growth, and allelopathic secondary metabolites, specifically benzoxazinoids (BXs), in the rhizospheres of rye (Secale cereale L.) and redroot pigweed (Amaranthus retroflexus L.). Given the complexities of root exudate analysis, including the influence of substrate on root morphology and exudation, the experiment compared plant growth and BX release in two substrates: glass microbeads and a mixture of clay beads and attapulgite. Rye, pigweed, and co-cultures of the two were grown under controlled conditions, with root and shoot parameters measured to assess substrate suitability. Additionally, UPLC-QTOF-MS was used to analyze BXs in rye and rye–pigweed co-cultures. The results demonstrated that the clay bead and attapulgite mixture provided better growth conditions and was effective for BX extraction, making it a suitable substrate for studying allelopathy in controlled environments. The findings highlight the critical role of substrate composition in both plant development and the study of root exudates, with implications for better understanding of crop–weed interactions and allelopathy. Full article
(This article belongs to the Special Issue Application of Allelochemicals in Agriculture)
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10 pages, 1270 KiB  
Communication
Effects of Conventional and Organic Fertilization on the Chemical Profile of Sorghum bicolor and the Preference of Sugarcane Aphids (Melanaphis sacchari)
by Ericka Nieves-Silva, Engelberto Sandoval-Castro, Ma. D. Castañeda-Antonio, Adriana Delgado-Alvarado, Arturo Huerta-De la Peña and Ignacio Ocampo-Fletes
Agronomy 2024, 14(7), 1512; https://doi.org/10.3390/agronomy14071512 - 12 Jul 2024
Viewed by 1030
Abstract
Melanaphis sacchari is a cosmopolitan pest that causes losses in sorghum crops, so new management methods are needed. In addition, the type of fertilization used influences plant compositions and pest infestation, and allelochemicals are a promising method for the possible management of M. [...] Read more.
Melanaphis sacchari is a cosmopolitan pest that causes losses in sorghum crops, so new management methods are needed. In addition, the type of fertilization used influences plant compositions and pest infestation, and allelochemicals are a promising method for the possible management of M. sacchari. In this work, we measured the preference of M. sacchari through chemical stimuli towards sorghum plants grown under greenhouse conditions without fertilization (F0), conventional fertilization (CF), and organic fertilization (OF). Leaves were collected from sorghum plants fertilized with 200 kg N ha−1 using ammonium sulfate and poultry manure. Extracts were obtained using Soxhlet extraction, and the compounds were identified using a gas chromatograph coupled with mass spectrometry (GC-MS). Sorghum extracts were individually tested through bioassays to determine M. sacchari preference. The abundance and number of compounds in sorghum differed depending on the type of fertilization used. M. sacchari showed a preference for the extract from CF sorghum plants (76.66%) over the extract from OF plants (23.34%). Therefore, the type of fertilization can be used as a tactic to prevent higher infestations of M. sacchari. The biological activity of the compounds identified here with M. sacchari should be determined for future pest management strategies using allelochemicals, given that the sugarcane aphid uses chemical signals to locate its host plant. Full article
(This article belongs to the Special Issue Application of Allelochemicals in Agriculture)
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