Integrated Strategies for Biotic and Abiotic Stresses Mitigation in Horticulture

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

Deadline for manuscript submissions: 20 October 2026 | Viewed by 927

Special Issue Editors

School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China
Interests: electrophysiology; water stress; plant adaptability; irrigation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Horticultural crops, characterized by their high economic value and nutrient density, play a crucial role as a complementary aspect of food production systems. Biotic stresses (such as insect pests, bacterial infections, and weed competition) and abiotic stresses (such as drought, salinity, extreme temperatures, heavy metals, and nutritional imbalance) may cause a severe reduction in crop yield when they are beyond the ability of the crop to acclimatize or recover. In view of this, it is necessary to make efforts to enhance stress tolerance in plants, with the primary goal being to enhance yield under stress conditions.

Consequently, systematically elucidating the stress resistance mechanisms of horticultural crops and formulating green and efficient mitigation strategies have emerged as a priority area in horticultural scientific research. Notably, environmental stress mitigation in horticultural crops has shifted from single-measure approaches to a comprehensive system involving “genetic improvement, environmental regulation, exogenous physiological intervention, and microbial association”. Such an integrated approach represents a major advancement in horticultural science, enabling more effective and sustainable management of biotic and abiotic stress challenges.

The purpose of this Special Issue, “Integrated Strategies for Biotic and Abiotic Stresses Mitigation in Horticulture”, aims to present innovative studies, mechanisms, tools, approaches, and techniques that have been successful in addressing some of the challenges mentioned above. Scientists from all over the world are invited to submit original research and review articles that relate to such topics.

Dr. Deke Xing
Prof. Dr. Yanyou Wu
Guest Editors

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Keywords

  • agronomic practices
  • bio-based agrochemicals
  • electrophysiology
  • genotype
  • metabolisms
  • morphology
  • mycorrhizal fungi
  • plant growth regulators
  • photosynthesis
  • yield

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Published Papers (1 paper)

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Research

20 pages, 1100 KB  
Article
Improving Tomato Graft Healing Efficiency Through Regulation of Red/Blue Light Ratios and Supplemental Green Light
by Qian Zhang, Yang Zhang, Yang Yu, Yanjun Li, Jianfeng Wang, Jinxiu Song, Huanyu Zhang and Xizhuo Sun
Horticulturae 2026, 12(3), 270; https://doi.org/10.3390/horticulturae12030270 - 26 Feb 2026
Viewed by 416
Abstract
As both an energy source and a signaling cue, light quality regulates graft healing by modulating endogenous phytohormone homeostasis, callus formation, and vascular reconnection. To elucidate the regulatory roles of red/blue (R/B) light ratios and green light supplementation on healing and seedling quality [...] Read more.
As both an energy source and a signaling cue, light quality regulates graft healing by modulating endogenous phytohormone homeostasis, callus formation, and vascular reconnection. To elucidate the regulatory roles of red/blue (R/B) light ratios and green light supplementation on healing and seedling quality of grafted tomato (Solanum lycopersicum L.), a controlled-environment experiment was conducted in a plant factory using ‘Zhongza 105’ as the scion and ‘Zhezhen No. 1’ as the rootstock. LED lighting treatments were established with different R/B ratios (1.0, 2.5, 4.0, 5.5 and 7.0) with or without supplemental green light. The results show that moderate R/B ratios (4.0–5.5) significantly increased scion elongation, the stem diameter of both scion and rootstock, the mechanical strength of the graft union, and sap flow, while also enhancing leaf chlorophyll content, photosynthetic rate, and root activity. Under optimal R/B conditions, indole-3-acetic acid (IAA) and gibberellin (GA) levels were elevated, whereas abscisic acid (ABA) was reduced, favoring callus proliferation and vascular reconnection. Green light supplementation under moderate R/B further promoted stem thickening, leaf area expansion, water transport across the graft union, and total biomass accumulation. Overall, an R/B ratio of 4.0–5.5 combined with appropriate green light supplementation optimized the morphology, structure, and physiological performance of grafted tomato seedlings during the healing stage. The results aim to provide a scientific basis for optimizing light environments in a controlled environment, thus enhancing the stability and quality of grafted tomato seedlings. Full article
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