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: 31 January 2025 | Viewed by 1079

Special Issue Editors


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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
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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
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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
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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

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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 (1 paper)

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Research

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
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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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