Water Stress in Mediterranean and Subtropical Fruit Trees

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

Deadline for manuscript submissions: closed (16 September 2021) | Viewed by 2913

Special Issue Editor


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Guest Editor
Department of Agronomy, University of Almería, Campus de Excelencia Internacional Agroalimentario (ceiA3), 04120 Almería, Spain
Interests: mediterranean and subtropical fruit crops; pollination, pollen–pistil interaction, fruit set and thinning; fruit crop physiology
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Special Issue Information

Dear Colleagues,

The Mediterranean region suffers endemic droughts that can be dated back to Ancient Egyptian times. Since then, early cultures developed clever irrigation strategies to cope with prolonged dry periods that threatened crop yields. Despite early successes in dealing with drought in the Mediterranean region and the current flourishing fruticulture, global warming and climate change represent a new threat for fruit crop producers. In addition to this, there is strong and increasing competition for water resources coming from different economic sectors (industry, tourism, cities, etc.).

In this context of increasing uncertainty regarding water availability and cost, farmers, technicians and researchers are developing and refining different irrigation strategies to minimize the negative effects of water stress on fruit crops. In this Special Issue, we unite the most recent advancements in the management of irrigation and stress in response to water shortages on the most representative Mediterranean and subtropical fruit crops.

Thus, in this Special Issue, a select group of researchers contribute to displaying the latest state of the art and experimental work carried out on soil and plant water sensors, irrigation scheduling, continuous ad regulated deficit irrigation strategies, partial root drying responses, rainfall catchment techniques, selection of drought tolerant cultivar and other related topics.

Prof. Dr. Julián Cuevas González
Guest Editor

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Keywords

  • drought
  • water stress
  • plant water status
  • soil water content
  • irrigation management
  • deficit irrigation
  • partial root drying
  • water stress sensors
  • Mediterranean and subtropical fruit crops

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Published Papers (1 paper)

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Research

12 pages, 2838 KiB  
Article
Prediction of Olive Tree Water Requirements under Limited Soil Water Availability, Based on Sap Flow Estimations
by Efthimios Kokkotos, Anastasios Zotos, George Tsirogiannis and Angelos Patakas
Agronomy 2021, 11(7), 1318; https://doi.org/10.3390/agronomy11071318 - 28 Jun 2021
Cited by 5 | Viewed by 2351
Abstract
The forecast of irrigation requirements in commercial olive orchards in the era of climate change is at the forefront of scientific research. Simplified models that are based on monitoring soil and plant water status, along with microclimatic variables are well established. In the [...] Read more.
The forecast of irrigation requirements in commercial olive orchards in the era of climate change is at the forefront of scientific research. Simplified models that are based on monitoring soil and plant water status, along with microclimatic variables are well established. In the present study, an attempt was made to correlate the olive tree sap fluxes and the theoretical grass water losses, as expressed by reference evapotranspiration (ETo) in mild to moderate water-stress conditions. The water flow in the soil–plant–air continuum was monitored using soil water and thermal dissipation probes (TDP), which have a comparatively low cost and satisfactory reliability, while microclimatic variability was monitored by a meteorological station placed within the experimental orchard. The assessment of water stress was conducted via a stress coefficient (Ks), which was determined according to soil water availability, and validated with measurements of pre-dawn water potential and stomatal conductance. The results suggest the existence of an exponential correlation (R2 = 0.869) between daily plant transpirational losses and reference evapotranspiration, while the methodology’s applicability is verified by the validation process (R2 = 0.804 and RMSE = 0.579 L per day). Full article
(This article belongs to the Special Issue Water Stress in Mediterranean and Subtropical Fruit Trees)
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