Physiological Traits of Plants Under Irrigation

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

Deadline for manuscript submissions: 28 February 2025 | Viewed by 846

Special Issue Editors


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Guest Editor
Department of Botany, Biology Institute, Federal University of Pelotas, Pelotas 96010-900, Brazil
Interests: plant growth and production; flooding and water deficit; water use efficiency; diversification of agricultural systems

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Guest Editor
Soil Science Department, Federal University of Pelotas, Pelotas 96010900, Brazil
Interests: irrigation systems; soil and water management; efficient use of mineral nutrients; plant production
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Guest Editor
Departamento de Biologia, Instituto de Ciências Naturais, Universidade Federal de Lavras, Lavras 3037, Brazil
Interests: plant production; flooding and water deficit; water use efficiency
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Plants play a fundamental role in the ecological balance and sustaining life on Earth. Their productivity, which refers to the amount of biomass generated in a given period, is influenced by several factors, including the availability of water, light, nutrients, and temperature. Irrigation is a crucial agricultural practice that aims to ensure the moisture necessary for plant growth, especially in regions where precipitation is insufficient. However, in the current context of climate change, assessing the efficiency of plants in terms of the internal processes and functions that allow them to carry out their vital activities, such as photosynthesis, respiration and the absorption of water and nutrients in agricultural systems, is a challenge. This Special Issue aims to publish recent research that characterizes the importance of irrigation in different agricultural systems, aiming to guarantee the supply of food in a changing world. We welcome empirical, modeling, and review contributions, including the integrated management of different agricultural systems, crop diversification, and management, which characterize the adaptive or physiological modeling responses of plants to the growing environment. Finally, this Special Issue considers essential aspects to guarantee the sustainability of plant production in the context of climate change in the face of increased demand for food.

Dr. Sidnei Deuner
Prof. Dr. Filipe Selau Carlos
Dr. João Paulo Barbosa
Guest Editors

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Keywords

  • plant production
  • yield
  • drought
  • flooding
  • irrigation systems
  • water use efficiency
  • climate change

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Published Papers (1 paper)

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Research

15 pages, 1352 KiB  
Article
Effect of Water Retainer® During Seedling Period on Bioactive Components of Tomato (Solanum lycopersicum)
by Rita Adél Tömösközi-Farkas, Ágnes Molnár-Mondovics and Barbara Ildikó Schmidtné Szantner
Agronomy 2024, 14(12), 2799; https://doi.org/10.3390/agronomy14122799 - 25 Nov 2024
Viewed by 623
Abstract
As a result of climate change, drought and the unequal distribution of rainfall is a worldwide problem. Drought stress on plants affects not only the yield, but also the amount and ratio of bioactive components in tomato fruit. The aim of the present [...] Read more.
As a result of climate change, drought and the unequal distribution of rainfall is a worldwide problem. Drought stress on plants affects not only the yield, but also the amount and ratio of bioactive components in tomato fruit. The aim of the present work was to investigate the effect of a new soil biodegradable water-retention agent (Water and Soil’s Water Retainer®, Water and Soil Ltd., Budapest, Hungary) containing natural ingredients during the seedling period and under different irrigation conditions on the product volume, dry matter content and on some characteristic secondary metabolites in tomato fruits. The study was conducted to screen four different irrigation and soil treatment combination treatments for production and quality characteristics (polyphenols, tocopherols, carotenoids, vitamin C) to check the effect of seedling-stage stress on the tomato yield and bioactive components. Significant differences were found among the treatment and the cultivation seasons for the phytochemical content of fruits. The average yield and BRIX value did not change as a result of the Water Retainer® compared to the irrigated samples, but the amount of lycopene, Vitamin C, antioxidant capacity, and total polyphenol content increased significantly with the use of the Water Retainer®. In the two cultivation seasons, the highest concentration of lycopene and Vitamin C (114.30 ± 3.18 μg.g−1 and 338.10 ± 13.70 μg.g−1 fwt, respectively) was determined in fruits of 50% irrigation + 1.5 mL/m2 WR®-treated plants. The highest measured antioxidant capacity and total polyphenol content were 21.54 ± 0.17 mMTr/kg and 504 ± 44 mg GAE/kg, respectively, in the same treated samples. We found that seedlings exposed to drought stress, and after planting, when grown under ideal conditions in the field, can be distinguished from each other, despite the fact that there was only a difference between their cultivation during the seedling period. This may prove that rehydration is not sufficient to completely restore the metabolomic processes of stressed plants. Full article
(This article belongs to the Special Issue Physiological Traits of Plants Under Irrigation)
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