Crop and Vegetable Physiology Under Environmental Stresses—2nd Edition

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

Deadline for manuscript submissions: 31 August 2025 | Viewed by 2502

Special Issue Editor

1. Department of Food Science, Aarhus University, 8200 Aarhus, Denmark
2. Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
Interests: plant physiology; abiotic stress; climate change
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Special Issue Information

Dear Colleagues,

Abiotic stresses induced by climate change and global warming have a negative impact on crop development, growth, and, ultimately, production. The production of crops and vegetables, especially at the reproductive stage, is sensitive to abiotic stresses. More importantly, several stress conditions usually occur concurrently. The response of plants to combined stress cannot be assumed from their response to individual stress; therefore, it is urgent to improve their climate resilience, especially drought and heat tolerance, and clarify the tolerance mechanisms. The aim of this Special Issue is to collect important results and findings on plants’ responses to environmental stress, especially from the perspectives of plant physiology, metabolism, and genetic regulation. We welcome submissions of cutting-edge knowledge on the effects of multiple stress to crops and vegetables.

Dr. Rong Zhou
Guest Editor

Manuscript Submission Information

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Keywords

  • plant physiology
  • plant metabolite
  • gene regulation
  • abiotic stress
  • climate change

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Research

28 pages, 2426 KiB  
Article
Comparative Evaluation of Salt Tolerance in Four Self-Rooted Hazelnut (Corylus avellana L. and Corylus americana Walter) Cultivars
by Xavier Rius-Garcia, María Videgain-Marco, José Casanova-Gascón, Luis Acuña-Rello and Pablo Martín-Ramos
Agronomy 2025, 15(1), 148; https://doi.org/10.3390/agronomy15010148 - 9 Jan 2025
Cited by 1 | Viewed by 2234
Abstract
Rising soil salinity poses a significant challenge to hazelnut cultivation, particularly in Mediterranean regions, where the increasing use of low-quality irrigation water necessitates the identification of salt-tolerant cultivars for sustainable production. This study investigated the salt tolerance mechanisms in four hazelnut cultivars (Barcelona, [...] Read more.
Rising soil salinity poses a significant challenge to hazelnut cultivation, particularly in Mediterranean regions, where the increasing use of low-quality irrigation water necessitates the identification of salt-tolerant cultivars for sustainable production. This study investigated the salt tolerance mechanisms in four hazelnut cultivars (Barcelona, Tonda di Giffoni, Tonda Gentile Romana, and Yamhill) exposed to varying NaCl concentrations (0, 25, 50, and 75 mM) over five months. This research assessed their morphological, physiological, and biochemical responses through an analysis of their growth parameters, photosynthetic efficiency, visual symptoms, and ion content. The results revealed significant genotypic variation in their salt tolerance mechanisms. Tonda di Giffoni demonstrated superior salt tolerance, maintaining a higher photosynthetic efficiency and better ion balance, particularly in K⁺/Na⁺ and Ca2⁺/Na⁺ ratios. Barcelona showed moderate tolerance at lower salinity levels but declined sharply under higher stress. Yamhill exhibited a strong survival capacity despite its poor photosynthetic performance, while Tonda Gentile Romana proved most sensitive to salinity stress. All the cultivars showed a significant biomass reduction, with their fresh and dry weights decreasing by over 80% at 75 mM NaCl. Leaf chloride concentrations dramatically increased, reaching levels 481% higher than those in the control conditions. This study identifies Tonda di Giffoni as the most suitable cultivar for moderately saline conditions and provides insights into hazelnut salt tolerance mechanisms, contributing valuable information for breeding programs and cultivation strategies in salt-affected regions. Full article
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