Water stress and vegetable crops

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

doi:10.1002/9781119054450.ch24

Cited by 7 publications

(4 citation statements)

References 123 publications

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“…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

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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.

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Section: Discussionmentioning

confidence: 99%

Effect of glutamic acid foliar applications on lettuce under water stress

Franzoni

Ferrante

2021

Physiol Mol Biol Plants

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“…As a practical approach in controlling water stress level, the leaf photosynthetic activity can be monitored since measuring stomatal conductance or resistance of plant leaves indicate the severity of water stress. In drought stress; plant development is regressed, woody structure occurs, bloom early and growth of the leaf area, stem height and chlorophyll content reduce [29]. In addition, water plays a considerable role in the nutrition consumption of plants by dissolving nutrients in the soil.…”

Section: Water Requirements Of the Vegetablesmentioning

confidence: 99%

Principles of Irrigation Management for Vegetables

Örs¹,

Şahin²,

Ekinci³

et al. 2022

Vegetable Crops - Health Benefits and Cultivation

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Vegetables have a very high percentage of water content. Some of the vegetables, such as cucumber, tomato, lettuce, zucchini, and celery contain over ninety-five percent of water. As a result of the high-water content in the cells, they are extremely vulnerable plants to water stress and drought conditions. Their yield and quality are affected rapidly when subjected to drought. Therefore, irrigation is essential to the production of most vegetables in order to have an adequate yield with high quality. However, over-irrigating can inhibit germination and root development, decrease the vegetable quality and post-harvest life of the crop. Determination of suitable irrigation systems and scheduling to apply proper amount of water at the correct time is crucial for achieving the optimum benefits from irrigation. This determination requires understanding of the water demand of the vegetable, soil characteristics, and climate factors. All these factors have major impact for the success and sustainability of any vegetable irrigation. This section contains fundamentals of water requirements on different vegetables and summarizes important issues related to soil, water, and vegetable growth relations together with irrigation management concept by evaluating the challenging issues on the selection of proper irrigation system, suitable irrigation timing, and other parameters to increase vegetable yield in an irrigated agriculture.

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“…Supplementary water provision may be necessary for the success of some horticultural industries in WA, particularly in those areas where seasonal precipitation may decrease and episodes of drought increase, such as the southern Sahel [37]. This provision will likely be vital for succulent horticultural crops, such as vegetables, which are significantly affected by limited water conditions or stress [78]. However, the expansion of irrigation facilities will require investment by governments and international agencies.…”

Section: Provision Of Irrigation Facilitiesmentioning

confidence: 99%

The Future of Rain-Fed Horticultural Crops Production in a Changing West African Climate

Amuji

2021

RAS

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In West Africa (WA), there are high rates of poverty, population growth rate and food insecurity, and most agricultural productions are conducted at mostly an un-mechanized level, with almost a complete reliance on rain-fed conditions. This review provides an overview of climate change across WA and its impacts on key horticultural crop groups (vegetables, plantations, fruits, roots and tubers). The review also identifies areas within WA where these crops may be more or less vulnerable to changing climatic conditions. Empirical studies using climate change models were synthesized and analyzed for reliable future climate projection effects on the production of region horticultural crops. The two climatic variables likely to have the greatest effects on the horticultural crops in the region are temperature and precipitation, with the latter considered to be of superior influence. As climate change continues to intensify with time, so does its impact on rain-fed horticulture. The study showed that the Sahel areas of the region would be the most affected and that horticulture production in that part would be significantly impacted. The study found that the impact of climate change on the WA region is not uniform across the different ecosystems. Therefore, its effects on horticultural crops will also differ across the region: in some areas, the crop yields would increase, while in others it might decrease depending on the type of plant and the ecology being considered. This creates an urgent need to understand and synthesize the responses of horticultural crops to climate change and identify adaptation options. Adaptation actions and strategies are all discussed, education, the introduction of new cultivars, the development of effective cropping systems, the transference of skills from other regions, and the expansion of farmer-government-NGO collaborations.

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Water stress and vegetable crops

Cited by 7 publications

References 123 publications

Effect of glutamic acid foliar applications on lettuce under water stress

Effect of glutamic acid foliar applications on lettuce under water stress

Principles of Irrigation Management for Vegetables

The Future of Rain-Fed Horticultural Crops Production in a Changing West African Climate

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