Water stress and vegetable crops

Waśkiewicz, Agnieszka; Gładysz, Olimpia; Beszterda, Monika; Goliński, Piotr

doi:10.1002/9781119054450.ch24

Cited by 9 publications

(7 citation statements)

References 124 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The stomata closure is a common mechanism of protection against water stress and it can help to limit water transpiration and the subsequent limitation of photosynthesis. However, this strategy leads to a reduction in the crop yield (Waśkiewicz et al 2016 ). Thus, water deprivation is a limiting factor for plant growth and these results highlight the importance of a continuous water supply in leafy vegetables.…”

Section: Discussionmentioning

confidence: 99%

Effect of glutamic acid foliar applications on lettuce under water stress

Franzoni

Ferrante

2021

Physiol Mol Biol Plants

View full text Add to dashboard Cite

The yield and quality of leafy vegetables can be compromised by reduced water availability. Glutamic acid is involved in different biological processes and among them it plays an important role in chlorophyll and proline biosynthesis. The aim of this work was to evaluate the possible efficacy of glutamic acid in counteracting water stress in romaine lettuce. Lettuce plants were grown in pots filled with substrate and subjected to water deprivation. A glutamic acid solution (1.9 mM) was applied as foliar treatment, both in stressed and non-stressed plants. The effect of the treatment was evaluated at different time points during the experiment in order to evaluate changes at a molecular, physiological, biochemical and agronomic level. Yield was reduced by 35% in stressed plants, while no significant changes in quality parameters were observed, except for nitrate content, which increased under water stress. At a molecular level, the expression of genes encoding for ROS scavenging enzymes was monitored but, apparently, glutamic acid did not significantly prevent the water stress response. Slightly positive effects deriving from glutamic acid application were found for nitrate and proline contents, suggesting that a possible mode of action of glutamic acid would involve a role for these molecules. Further studies are required, also on other crop species, for confirming these results. Different concentrations and application modes should be also tested.

show abstract

Section: Discussionmentioning

confidence: 99%

Effect of glutamic acid foliar applications on lettuce under water stress

Franzoni

Ferrante

2021

Physiol Mol Biol Plants

View full text Add to dashboard Cite

show abstract

“…To address the problem of drought and increase crops' resilience, various strategies are implemented, including specialized crop inputs, traditional crop breeding and genetic modification to alleviate drought stress effects. Scientific research focuses on a better understanding of the drought resistance of crops, aiming to reveal those protective mechanisms that operate at a morphological and physiological level [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Water Stress Alleviation Effects of Biostimulants on Greenhouse-Grown Tomato Fruit

et al. 2022

View full text Add to dashboard Cite

The aim of the present study was to evaluate the effects of three biostimulant products (Nomoren (N), Twin Antistress (TW), x-Stress (XS) and control treatment (C: no biostimulants added)) on the nutritional value, chemical composition and bioactive properties of greenhouse tomato fruit grown under full (W+: 100% of field capacity) and deficit irrigation (W–: 70% of field capacity) conditions. Fat content was the highest for the fully irrigated plants that received no biostimulants (CW+), while proteins and carbohydrates and energetic value were the highest in the XSW+ treatment. The content of the main detected sugars (fructose, glucose and trehalose) varied depending on the irrigation and biostimulant treatment. The highest amounts of individual and total organic acids and tocopherols were recorded in fully irrigated plants treated with Twin Antistress (TW), whereas the lowest overall values were observed under deficit irrigation for plants that received the XS treatment. The most abundant fatty acids were palmitic (27.5–36.0%) and linoleic acid (27.4–35.4%), followed by oleic (9.2–21.2%), linolenic (5.4–13.1%) and stearic acid (5.3–6.8%). Moreover, the highest values of β-carotene and lycopene were recorded for the CW- and NW+ treatments, respectively. The TWW+ showed the highest antioxidant activity for both assays tested (TBARS and OxHLIA). Most of the tested extracts showed lower antibacterial activity against the tested bacteria compared to the positive controls. On the other hand, CW+, XSW+ and XSW- treatments showed higher antifungal activity (MIC values) than positive controls. In conclusion, each biostimulant product had a different effect on the determined characteristics depending on the level of irrigation. Therefore, more research is needed to better identify the mechanisms of action and the physiological processes, after which the tested biostimulants may be used to standardize the application of such products in tomato cultivation.

show abstract

“…Several herbaceous species are widely cultivated as important vegetable crops used for animal and human nutrition. The roots, leaves, stems, and flower buds of these vegetables are edible parts used as healthy foods because they are rich in fibers and bioactive compounds with human health benefits [89]. Water stress, caused by both drought and flooding, is one of the most harmful abiotic stressors that affects food production and has a subsequent impact on food security.…”

Section: Water Stress On Food Productionsmentioning

confidence: 99%

Impact of Climate Change on Agroecosystems and Potential Adaptation Strategies

Semeraro

Scarano

Leggieri³

et al. 2023

Land

View full text Add to dashboard Cite

Agriculture is currently one of the leading economic sectors most impacted by climate change. Due to its great field of application and its susceptibility to meteorological variability, the effects of climate change on agriculture have significant social and economic consequences for human well-being. Moreover, the increasing need for land spaces for population growth has produced strong competition between food and urbanization, leading to a loss of the agroecosystem that supports food security. This review aims to understand the main risks generated by climate change in agricultural production and the potential strategies that can be applied to increase agriculture’s resilience. Agricultural risk can be linked to the decrease in the productivity of foods, weed overgrowth at the crops expense, increase in parasites, water availability, soil alteration, negative impact on production costs and consequent change in the adopted cultivars, reduction in the pollination process, intense fires, and alteration of product quality. Thus, climate change can impact the provisioning of ecosystem services, reducing food security in terms of quantity and quality for future generations. Finally, in this review, we report the main adaptation strategies to increase agroecosystem resilience in adverse environments generated by climate change. Mainly, we highlight new technologies, such as new breeding technologies and agrivoltaic and smart agricultural applications, which, combined with agroecosystems, can reduce the agricultural risks following climate change (for example, drought events and low availability of water). We suggest that the combination of natural capital and technologies can be defined as an “innovation-based solution” able to support and increase ecosystem service flow in agroecosystems.

show abstract

Water stress and vegetable crops

Cited by 9 publications

References 124 publications

Effect of glutamic acid foliar applications on lettuce under water stress

Effect of glutamic acid foliar applications on lettuce under water stress

Water Stress Alleviation Effects of Biostimulants on Greenhouse-Grown Tomato Fruit

Impact of Climate Change on Agroecosystems and Potential Adaptation Strategies

Contact Info

Product

Resources

About