Innovations in Urban Horticulture

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

Deadline for manuscript submissions: closed (30 June 2024) | Viewed by 515

Special Issue Editors


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Guest Editor
Departament of Agronomic Engineering, Universidad Politécnica de Cartagena, Paseo Alfonso XIII 48, E-30203 Cartagena, Spain
Interests: landscape and urban greening; ecological green roofs; living walls; urban horticulture; irrigation; saline water and reclaimed wastewater use for landscape plants and urban horticulture; growing media; sustainable drainage systems (SuDS); nature-based solutions (NBS); smart gardening
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Guest Editor Assistant
Agronomic Engineering Department, Universidad Politécnica de Cartagena, Paseo Alfonso XII, 48, Murcia, 30203 Cartagena, Spain
Interests: suppressive compost; compost tea; baby leaf; hydroponic cultivation; urban horticulture; vertical farming; sustainable agriculture; horticultural crops; microgreens; growing media; enzyme activities; microorganisms
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor Assistant
Department of Agronomic Engineering, Universidad Politécnica de Cartagena, Paseo Alfonso XIII 48, 30203 Cartagena, Spain
Interests: nature-based solutions; soil-less cultivation; salinity eustress; fertigation; crop physiology; greenhouse technology; plant growth-promoting rhizobacteria; soil fertility; sustainable water management; nutrient use efficiency; plant factory
Special Issues, Collections and Topics in MDPI journals

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Guest Editor Assistant
1. Department of Agronomy, University of Almeria, 04120 Almeria, Spain
2. Department of Soil and Water Conservation and Organic Wastes Management, CEBAS-CSIC, Campus Universitario de Espinardo–25, E-30100 Murcia, Spain
Interests: LED lighting; soilless cultivation; greenhouse technology; nutrient use efficiency; plant factory; vertical farming; agri-food management; nutritional quality; urban agriculture; horticultural crops; microgreens

Special Issue Information

Dear Colleagues,

Climate change, environmental concerns, an increasing urban population, and the reduction of natural resources—soil, water, and biodiversity, in quantity and quality—are major world-wide challenges that are driving the development of urban agriculture. In the coming years, we will see a more technified agriculture that will have to be managed with increasingly scarce and poorer quality resources. This is especially important in semi-arid Mediterranean regions, where abiotic stresses are increasing. Abiotic stresses can have negative effects on the growth and survival of plants, reducing crop productivity and food security. However, applying a controlled abiotic stress to species with a certain tolerance to stress, such as halophytes, can cause these stresses to act as elicitors for the biosynthesis of many bioactive compounds. These active compounds, which serve as functional molecules for crop adaptation, are also of great interest due to their beneficial effects on human health. Elicitors, whether biotic or abiotic, can provoke the biochemical mechanism of plants to produce compounds that will create the desired agronomic features, for use as nutraceuticals. We should also consider other abiotic factors such as water stress, high temperatures, and some aspects of different productive factors such as growing media, lighting, etc., on the nutritional value or quantity of healthy compounds in crops produced in different urban agriculture systems.

This Special Issue invites the submission of original research papers, opinions, review papers, and perspectives examining the main factors involved in the modulation of the nutritional, functional, and organoleptic quality of crop plants grown in urban and peri-urban agriculture.

Dr. Jesus Ochoa
Guest Editor

Dr. Almudena Giménez
Dr. Victor M. Gallegos-Cedillo
Dr. Cinthia Nájera
Guest Editor Assistants

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Keywords

  • urban horticulture
  • vertical farming
  • LED lighting
  • LCA
  • nutraceutics
  • growing media
  • compost tea
  • abiotic stresses
  • nature-based solutions
  • building-integrated agriculture

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Published Papers (1 paper)

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Research

15 pages, 4012 KiB  
Article
Seasonal Photosynthetic and Water Relation Responses of Three Cool Temperate Garden Shrubs to Drought Stress
by Jiaying Li, Shaowei Lu, Shaoning Li, Bin Li, Liwei Hou, Na Zhao and Xiaotian Xu
Agronomy 2024, 14(8), 1772; https://doi.org/10.3390/agronomy14081772 - 13 Aug 2024
Viewed by 288
Abstract
The globally increasing frequency of extreme drought events exacerbates the contradiction between the supply of water and the demand for high-quality urban greening. However, the mechanism of the response of urban shrubs to drought stress remains unclear. In this study, three typical urban [...] Read more.
The globally increasing frequency of extreme drought events exacerbates the contradiction between the supply of water and the demand for high-quality urban greening. However, the mechanism of the response of urban shrubs to drought stress remains unclear. In this study, three typical urban shrubs (Euonymus japonicus, golden vicary [Ligustrum × vicaryi], and Japanese purple barberry [Berberis thunbergii var. atropurpurea]) that are used for greening in northern China were exposed to three levels of water (full irrigation, natural rain-fed, and extreme drought) in different periods of the growing season (April to May, June to July, and August to September) to investigate the responses of leaf water potential and photosynthetic parameters. The main results were as follows: (1) all the leaf water potentials (Ψ) and photosynthetic parameters (Pn) showed a typical linear relationship along the water gradient in the middle of the growing season. Extreme drought decreased the photosynthetic rates by 1.26~11.03 μmol·m−2·s−1 compared with the irrigated groups. However, the responses were less pronounced in the early and late growing seasons. (2) Different shrubs responded with different intensities and mechanisms. B. thunbergii var. atropurpurea showed clear anisohydric behavior throughout the whole growing season, while L. × vicaryi and E. japonicus showed stronger isohydric behavior during the early and late growing seasons. These findings are important to improve the sustainability of maintenance of ornamental plants from the scope of the efficient utilization of urban water resources. Full article
(This article belongs to the Special Issue Innovations in Urban Horticulture)
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