Abiotic Stress Resilience in Vegetable Crops: Genetics and Agronomy Approaches

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Horticultural and Floricultural Crops".

Deadline for manuscript submissions: 28 February 2026 | Viewed by 1652

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Department of Primary Industries and Regional Development, 262 South River Road, Carnarvon, WA 6701, Australia
Interests: vegetable varieties; nutrient management; nutrient use efficiency; sensor-based phenotyping; decision support tools
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Guest Editor
Department of Agronomy, UTP University of Science and Technology, S. Kaliskiego 7, 85-796 Bydgoszcz, Poland
Interests: field crops; vegetables; grasses; sustainable agriculture; cropping system; seed production; biostimulants; nutrient management; crop quality; crop storage
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Special Issue Information

Dear Colleagues,

Abiotic stresses are the most challenging environmental factors that affect global vegetable crop production. Abiotic factors, such as high and low temperatures, drought, flood, salinity, radiation, etc., affect crop growth and enable the infestation of insect pests and diseases, resulting in drastically reduced yields and production under certain conditions. These stress stimuli do not act in isolation but often occur simultaneously. Thus, understanding crops’ physiological changes and adaptability in response to multi-stress stimuli and exploring appropriate measures to address these issues are crucial for vegetable farming.

Of possible measures, strengthening genetic-based tolerance and agronomy practices are plausible approaches for mitigating the adverse effects of environmental stressors and for improving crop resilience and productivity. These approaches can be achieved through conventional and molecular breeding and through the adoption of advanced agronomy.

This Special Issue is dedicated to the compilation of up-to-date research on vegetable crops’ responses to abiotic stresses and countermeasures for crop protection. We particularly encourage the submission of studies on modern genetic and agronomy methods that alleviate the impact of stress and build resilience in vegetable crop production.

Dr. Giao Nguyen
Prof. Dr. Małgorzata Szczepanek
Guest Editors

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Keywords

  • drought
  • heat
  • cold
  • flood
  • radiation
  • breeding
  • genomic selection
  • biotechnology
  • rotation
  • cover crop
  • conservation tillage
  • soil health
  • biostimulants
  • integrated pest management
  • precision agriculture
  • digital phenotyping
  • artificial intelligence
  • water use efficiency
  • nutrient use efficiency
  • protected cultivation

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Published Papers (1 paper)

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Research

15 pages, 5128 KB  
Article
Effect of Drought and High-Light Stress on Volatile Compounds and Quality of Welsh Onion (Allium fistulosum L.)
by Xuena Liu, Zijing Chen, Kun Xu and Kang Xu
Agronomy 2025, 15(10), 2349; https://doi.org/10.3390/agronomy15102349 - 6 Oct 2025
Viewed by 856
Abstract
Welsh onion (Allium fistulosum L.) is a globally significant culinary vegetable with extensive cultivation and high application value. In China, Welsh onion is vulnerable to drought and strong-light stress in summer production, resulting in growth inhibition and quality decline. This study utilized [...] Read more.
Welsh onion (Allium fistulosum L.) is a globally significant culinary vegetable with extensive cultivation and high application value. In China, Welsh onion is vulnerable to drought and strong-light stress in summer production, resulting in growth inhibition and quality decline. This study utilized LED-intelligent spectral-customized lamps to simulate high-light stress and a 10% PEG-6000 Hoagland solution to simulate drought stress. The effects of different stress treatments on the nutritional quality, volatile compounds, and mineral element composition of the edible portions were systematically analyzed. The results demonstrated that drought stress significantly promoted the accumulation of alcoholic compounds in leaf tissues while reducing the content of sulfur-containing compounds. High-light stress markedly increased the levels of hydrocarbon compounds in leaves. Sulfur-containing compounds in leaf tissues were predominantly disulfides, but under combined drought and high-light stress, their content decreased, while the proportion of trisulfides significantly increased. Volatile compounds in pseudostems were primarily composed of sulfur-containing and aldehyde compounds, yet their levels markedly declined under combined stress. Additionally, combined stress led to reductions in pyruvic acid, soluble sugars, and soluble protein content in the edible portions, while the crude fiber content increased, thereby significantly impairing nutritional quality. This study provides a scientific basis for understanding the abiotic stress response mechanisms of Welsh onion and offers valuable insights for cultivation management and quality regulation. Full article
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