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Agronomy
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Effect of Regulated Deficit Irrigation (RDI) on the Production and...
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Effect of Regulated Deficit Irrigation (RDI) on the Production and Quality of Fruits and Vegetables

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Water Use and Irrigation".

Deadline for manuscript submissions: closed (25 November 2021) | Viewed by 3466

Special Issue Editor

Dr. Jacinta Collado-González

E-Mail Website
Guest Editor
Institute for Agro-Environmental Research and Development of Murcia (IMIDA), Department of Plant Production and Agrotechnology, C/Mayor s/n, E-30150 Murcia, Spain
Interests: abiotic stress; phytochemicals; anthocyanins; phenolic compounds; antioxidant activity; natural product chemistry; bioactivity; antioxidant assays; polyphenols; food science
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Climate change is one of the most serious and multifaceted threats facing humanity today. It is irreversible and agriculture is one of the most vulnerable areas, which compromises the production of healthy food and leads certain sectors of the population to a state of food insecurity. For this reason, in the last decade, concern about the effects of climate change on the production and quality of vegetables and fruits has increased as both the intensity and the frequency of the different abiotic stresses increased. Among these abiotic stresses are included extreme heat and drought that often co-occur and dramatically reduce plant quality and productivity. In order to help in mitigating the impact of these abiotic stresses, in recent years, awareness of the need to obtain more sustainable crops has also begun. For this reason, different efficient strategies for deficit irrigation management, including regulated deficit irrigation (RDI) have been carried out. Although it is known that RDI strategy was designed to save water with a minimum impact on yield and fruit quality, few studies exist about the effect of these agronomic factors on physical–chemical, functional, and sensory properties of fruits and vegetables. Thus, we are pleased to announce this Special Issue focusing on “Effect of Regulated Deficit Irrigation (RDI) on the Production and Quality of Fruits and Vegetables”. We welcome original research, reviews and opinion articles that cover all those associated topics related to the physiological response to abiotic stress, biochemical approaches and the sustainable combination of agronomic techniques in order to mitigate the climatic effects on crops and their subsequent effect on the quality of different vegetables and fruits.

Dr. Jacinta Collado-González
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Agronomy is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • regulated deficit irrigation (RDI)
  • water scarcity
  • smart farming
  • agronomical practices
  • sustainable and nutritive food
  • organic agriculture
  • food by-products with added value
  • food quality
  • food safety
  • healthy food
  • phytochemicals
  • bioactive compounds
  • sensory analysis

Published Papers (1 paper)

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Research

33 pages, 6274 KiB  
Article
Deficit Irrigation Strategies on Tree Physiological and Chemical Properties: Treatment Effects, Prediction Based Model Analyses and Inter-Correlations
by Ahmed Ezzat, Abdel-Moety Salama, Szilárd Szabó, Arshad Abdulkhalq Yaseen, Bianka Molnár and Imre J. Holb
Agronomy 2021, 11(7), 1361; https://doi.org/10.3390/agronomy11071361 - 3 Jul 2021
Cited by 6 | Viewed by 2765
Abstract
Irrigation is a key factor for different physiological aspects of fruit trees. Therefore, such irrigation protocols that can save water consumption during irrigation and maintain fruit trees productivity are an essential goal especially under semiarid climate conditions. The aim of this 3-year apricot [...] Read more.
Irrigation is a key factor for different physiological aspects of fruit trees. Therefore, such irrigation protocols that can save water consumption during irrigation and maintain fruit trees productivity are an essential goal especially under semiarid climate conditions. The aim of this 3-year apricot study was to investigate the effect of four deficit irrigation (DI) treatments (control, moderate regulated deficit irrigation: RDIm, severe RDI: RDIs and continuous DI: CDI) on 15 tree physiological properties (chilling requirement—CR, heat requirement—HR, days from end—dormancy until fruit harvest—DEDFH, sum of growing degree days—sGDD, total number of buds—TNB, number of flower buds—NFB, number of vegetative buds—NVB, starting date of flowering—SDF, number of opened flower buds—NOFB, flower bud abscission—FBA, fruit set—FS, seasonal vegetative growth—SVG, fruit number per tree—FNT, fruit weight—FW, fruit yield—FY), and on two tree chemical properties (total soluble carbohydrates—TSC and total proline content—TPC) on apricot cultivars ‘Ninfa’ and ‘Canino’ in Egypt. Results showed that both DI treatments and cultivars significantly influenced the values of CR, HR, TNB, SDF, NOFB, FS, SVG, FNT, FY, TSC, and TPC. Values of FBA were significantly affected by years and DI treatments, while sGDD by years and cultivars. Values of DEDFH, NFB, and FW were significantly influenced only by cultivars, while NVB only by DI treatments. The RDIm treatment gave the most acceptable values for most measured properties compared to the fully irrigated control treatment. Prediction based model analysis demonstrated that generalized linear models (GLMs) can be predictors for the measured tree properties in the DI treatments. The best goodness-of-fit of the predicted GLMs was reached for HR, NOFB, FS, SVG, FNT, TSC, and TPC. In all the four DI treatments, 22 pair-variables (TNB versus (vs.) NFB, TNB vs. NOFB, TNB vs. NOFB, NFB vs. NOFB, NFB vs. FNT, NFB vs. FY, NFB vs. FW, NOFB vs. SVG, NOFB vs. FNT, NOFB vs. FY, FS vs. FNT, FS vs. FY, SVG vs. FNT, SVG vs. FY, SVG vs. TSC, FNT vs. FY, FY vs. FW, CR vs. TSC, HR vs. TNB, HR vs. NFB, HR vs. FNT, HR vs. FY, and NOFB vs. FBA) correlated significantly in Pearson correlation and regression analyses. Principal component analyses explained 82% of the total variance and PC1, PC2, and PC3 explained 23, 21, and 15% of the total variance and correlated with the HR, TNB, FS, FNT and FY; FBA, SVG, TSC, and TPC; and NFB, NVB and NOFB, respectively, indicating strong connections among tree physiological and chemical properties. In conclusion, DI techniques using moderate water deficits can be managed successfully in apricot production under semiarid Mediterranean climate conditions such as the one in Egypt. Full article
(This article belongs to the Special Issue Effect of Regulated Deficit Irrigation (RDI) on the Production and Quality of Fruits and Vegetables)
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