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Polymers
Special Issues
Polymer Materials for Agricultural Application
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Polymer Materials for Agricultural Application

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Applications".

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 7382

Special Issue Editors

Dr. Florin Oancea

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Guest Editor
1. Bioresources Department, Bioproducts Group, National Institute for Research and Development in Chemistry and Petrochemistry, ICECHIM, Bucharest, Romania
2. Biotechnologies Faculty, University of Agriculture and Veterinary Medicine, Bucharest, Romania
Interests: plant biostimulants; microbial and plant biosynthetized nanoparticles; nanocellulose; chitin/chitosan and nanochitin/nanochitosan; alginate; stimuli-responsive nanoformulations; multifunctional nanosystems; circular bioeconomy
Special Issues, Collections and Topics in MDPI journals
Dr. Diana Constantinescu-Aruxandei

E-Mail Website
Guest Editor
National Institute for Research & Development in Chemistry and Petrochemistry–ICECHIM, 060021 Bucharest, Romania
Interests: proteins; biopolymers; plant biostimulants; bio(nano)technology; green technologies; enzymology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear colleagues,

Polymers contribute to the sustainable intensification of agricultural production. (Bio)polymers are active ingredients and/or enhancers of plant biostimulants and plant protection products. Seeds often require and benefit from film-forming polymers for enhanced protection and better germination. Polymeric films are used also to control postharvest diseases and to extend shelf life of fruits and vegetables. New generation of controlled released fertilizers relies on biodegradable polymer coatings. Biodegradable plastic mulch and/or water-holding polymers buffer soil temperature, prevent moisture loss, and increase crop water use efficiency. Formulations based on responsive polymers improve the efficacy and selectivity of agrochemicals and limit their negative impacts. The precise application of these polymer-based products to sustainable agricultural systems is supported by newly developed polymer-based agricultural sensors.  

This Special Issue is intended to bring together research papers, communications, and review articles covering topics related to the development and application of polymers for crop management.

Dr. Florin Oancea
Dr. Diana Constantinescu-Aruxandei
Guest Editors

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. Polymers is an international peer-reviewed open access semimonthly 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 2700 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.

Published Papers (2 papers)

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Research

13 pages, 930 KiB  
Article
Superabsorbent Polymer Seed Coating Reduces Leaching of Fungicide but Does Not Alter Their Effectiveness in Suppressing Pathogen Infestation
by Marcela Gubišová, Martina Hudcovicová, Pavel Matušinský, Katarína Ondreičková, Lenka Klčová and Jozef Gubiš
Polymers 2022, 14(1), 76; https://0-doi-org.brum.beds.ac.uk/10.3390/polym14010076 - 26 Dec 2021
Cited by 4 | Viewed by 3583
Abstract
Superabsorbent polymers (SAPs) applied to soil have been recognized as water reservoirs that allow plants to cope with periods of drought. Their application as a seed coat makes water available directly to the seeds during their germination and early growth phase, but on [...] Read more.
Superabsorbent polymers (SAPs) applied to soil have been recognized as water reservoirs that allow plants to cope with periods of drought. Their application as a seed coat makes water available directly to the seeds during their germination and early growth phase, but on the other hand, it can affect the efficiency of plant protection substances used in seed dressing. In our experiments, we evaluated the effect of seed coating with SAP on fungicide leaching and changes in their effectiveness in suppressing Fusarium culmorum infestation. Leaching of fungicide from wheat seeds coated with SAP after fungicide dressing, as measured by the inhibition test of mycelium growth under in vitro conditions, was reduced by 14.2–15.8% compared to seeds without SAP coating. Germination of maize seeds and growth of juvenile plants in artificially infected soil did not differ significantly between seeds dressed with fungicide alone and seeds treated with SAP and fungicide. In addition, plants from the seeds coated with SAP alone grew significantly better compared to untreated seeds. Real-time PCR also confirmed this trend by measuring the amount of pathogen DNA in plant tissue. Winter wheat was less tolerant to F. culmorum infection and without fungicide dressing, the seeds were unable to germinate under strong pathogen attack. In the case of milder infection, similar results were observed as in the case of maize seeds. Full article
(This article belongs to the Special Issue Polymer Materials for Agricultural Application)
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18 pages, 4054 KiB  
Article
Conservation, Regeneration and Genetic Stability of Regenerants from Alginate-Encapsulated Shoot Explants of Gardenia jasminoides Ellis
by Stefanos Hatzilazarou, Stefanos Kostas, Theodora Nendou and Athanasios Economou
Polymers 2021, 13(10), 1666; https://0-doi-org.brum.beds.ac.uk/10.3390/polym13101666 - 20 May 2021
Cited by 8 | Viewed by 2441
Abstract
The present study demonstrates the potential of the alginate encapsulation of shoot tips and nodal segments of Gardenia jasminoides Ellis, the short-term cold storage of artificial seeds and subsequent successful conversion to desirable, uniform and genetically stable plantlets. Shoot tips and first-node segments [...] Read more.
The present study demonstrates the potential of the alginate encapsulation of shoot tips and nodal segments of Gardenia jasminoides Ellis, the short-term cold storage of artificial seeds and subsequent successful conversion to desirable, uniform and genetically stable plantlets. Shoot tips and first-node segments below them, derived from shoots of in vitro cultures, responded better than second-to-fourth-node segments on agar-solidified Murashige and Skoog (MS) nutrient medium and thus, they were used as explants for alginate encapsulation. Explant encapsulation in 2.5% sodium alginate in combination with 50 mM of calcium chloride resulted in the production of soft beads, while hardening in 100 mM of calcium chloride formed firm beads of uniform globular shape, suitable for handling. The addition of liquid MS nutrient medium in the sodium alginate solution doubled the subsequent germination response of the beads. The maintenance of alginate beads under light favored their germination response compared to maintenance in darkness. Encapsulated shoot tip explants of gardenia, which were stored at 4 °C for 4, 8 or 12 weeks, showed a gradual decline in their regeneration response (73.3, 68.9, 53.3%, respectively), whereas, non-encapsulated explants (naked), stored under the same time durations of cold conditions, exhibited a sharp decline in regeneration response up to entirely zeroing (48.9, 11.1, 0.0%, respectively). Shoots, derived from 12-week cold-stored encapsulated explants, were easily rooted in solid MS nutrient medium with the addition of 0.5 μM of Indole-3-acetic acid (IAA) and after transplantation of the rooted plantlets individually to pots containing a peat–perlite (3:1, v/v) substrate, they were successfully acclimatized in the greenhouse under the gradual reduction of 75 or 50% shading with survival rates of 95–100%. The genetic stability of the acclimatized plantlets was assessed and compared with the mother plant using inter simple sequence repeat (ISSR) markers. ISSR analysis confirmed that all regenerated plantlets were genetically identical to the mother plant. This procedure of artificial seed production could be useful for the short-term storage of germplasm and the production of genetically identical and stable plants as an alternative method of micropropagation in Gardenia jasminoides. Full article
(This article belongs to the Special Issue Polymer Materials for Agricultural Application)
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