The effects of climate change and groundwater salinity on farmers’ income risk

Akbari, M.; Alamdarlo, Hamed Najafi; Mosavi, Seyed Habibollah

doi:10.1016/j.ecolind.2019.105893

Cited by 51 publications

(24 citation statements)

References 32 publications

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“…Salinity is considered among the abiotic stresses that have the highest detrimental effects on plant growth and development [1]. Furthermore, the increase in water and soil salinity is closely related to climate change [2]; specifically, climate change has led to rises in temperatures and decreases in precipitations, thus degrading water quality and elevating the salt content of groundwater [3]. As for as agriculture is concerned, the salinisation of soil and irrigation water has a heavy impact on crop yield.…”

Section: Introductionmentioning

confidence: 99%

Use of a Biostimulant to Mitigate Salt Stress in Maize Plants

D’Amato

Buono

2021

Agronomy

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Salinity is considered among the abiotic stresses most impacting agriculture for its ability to interfere with crop development and quality. For this reason, practices and innovations that could contain the deleterious effects of such stress are of pivotal importance for maintaining acceptable crop yields. In this context, this work has concerned the study of severe salt stress (100 mM NaCl) on maize seedlings and the effects of a plant biostimulant (Megafol–Meg) in helping plants to cope with this adversity. Biomass production, pigments, the content Na+ and K+, the accumulation of hydrogen peroxide (H2O2) and lipid peroxidation products (MDA), total phenolic compounds (TPC), 2,2-diphenyl-1-picrylhydrazyl (DPPH), ferric reducing antioxidant power (FRAP), and 2,2-azinobis (3-ethyl-benzothiazoline-6-sulfonic acid) (ABTS) were investigated in control samples, in samples treated with NaCl alone, and in samples treated with NaCl in combination with the biostimulant. The results showed that the biostimulant significantly mitigated the impact of the salt stress on shoot length and fresh weight, on chlorophyll and carotenoid contents, and reduced the amount of Na+ taken up by the species. Regarding the oxidative status, the biostimulated samples revealed lower amounts of H2O2 and MDA, while maize seedlings grown with NaCl alone exhibited the highest increases in the TPC, ABTS, and FRAP. The explanation for these effects is provided by highlighting the effectiveness of the biostimulant in avoiding Na+ accumulation, which resulted in a lower content of H2O2, MDA, TPC, and antioxidant activity.

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Section: Introductionmentioning

confidence: 99%

Use of a Biostimulant to Mitigate Salt Stress in Maize Plants

D’Amato

Buono

2021

Agronomy

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“…Salinity is the major environmental issue challenging the agriculture sector to produce enough food to meet the growing demands of population 4 , 5 . It is estimated that more than 800 million hectares of land is affected by salinity throughout the world due to irrigation with saline water, excessive usage of chemical based fertilizers, high temperature and scanty precipitation resulted in loss of cultivated soil 6 (FAO,2008).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Pseudomonas sp. for its multifarious plant growth promoting potential and its ability to alleviate biotic and abiotic stress in tomato (Solanum lycopersicum) plants

Pandey

Gupta

2020

Sci Rep

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Abstract1-Aminocyclopropane-1-carboxylate (ACC) deaminase activity is one of the most beneficial traits of plant growth promoting (PGP) rhizobacteria responsible for protecting the plants from detrimental effects of abiotic and biotic stress. The strain S3 with ACC deaminase activity (724.56 nmol α-ketobutyrate mg−1 protein hr−1) was isolated from rhizospheric soil of turmeric (Curcuma longa), a medicinal plant, growing in Motihari district of Indian state, Bihar. The halotolerant strain S3, exhibited optimum growth at 8% (w/v) NaCl. It also exhibited multiple PGP traits such as indole acetic acid production (37.71 μg mL−1), phosphate solubilization (69.68 mg L−1), siderophore, hydrocyanic acid (HCN) and ammonia production as well as revealed antagonism against Rhizoctonia solani. The potential of isolated strain to alleviate salinity stress in tomato plants was investigated through pots trials by inoculating strain S3 through-seed bacterization, soil drenching, root dipping as well as seed treatment + soil drenching. The strain S3 inoculated through seed treatment and soil drenching method led to improved morphological attributes (root/shoot length, root/shoot fresh weight and root/shoot dry weight), photosynthetic pigment content, increased accumulation of osmolytes (proline and total soluble sugar), enhanced activities of antioxidants (Catalase and Peroxidase) and phenolic content in salt stressed tomato plants. The biochemical characterisation, FAMEs analysis and 16S rRNA gene sequencing revealed that strain S3 belongs to the genus Pseudomonas. The overall findings of the study revealed that Pseudomonas sp. strain S3 can be explored as an effective plant growth promoter which stimulate growth and improve resilience in tomato plants under saline condition.

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“…Water and soil salinity will be much more problematic in the near future due to climate change and both will be serious threats to rice cultivation [116,117]. Salinity is already affecting agriculture, as declared by UNEP (the United Nations Environment Programme), according to which about 20% of arable areas and 50% of crop land are already affected by salinity [9].…”

Section: Salinitymentioning

confidence: 99%

How Can Weedy Rice Stand against Abiotic Stresses? A Review

2020

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Weedy rice is one of the most common weeds in rice cultivation in many rice areas throughout the world and it is able to cause significant yield reductions. Weedy rice is characterized by a high biological diversity that permits different populations to be identified on the basis of their morphological and physiological traits. This variability contributes to its success in different environments and allows different abiotic stresses, which are intensified by climate change, to be faced. Taller plants, enhanced tillering, seed shattering and the presence of red pericarp, variable hull coloration and awn morphology, linked to a deeper seed dormancy, are some of the traits that help weedy rice to spread in changing environments. The higher phenotypic plasticity and genetic variability of weedy rice make it more able to cope with temperature variations, intermittent water availability, soil salinity, drought conditions and increased CO2 concentrations than cultivated rice. As these abiotic stresses will become more frequent in the future, weedy rice competitiveness may be higher, with a spread of infestations. Thus, the control of weedy rice should be based on an integration of different preventive and agronomic techniques, a sensible use of herbicides and the use of suitable rice varieties.

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The effects of climate change and groundwater salinity on farmers’ income risk

Cited by 51 publications

References 32 publications

Use of a Biostimulant to Mitigate Salt Stress in Maize Plants

Use of a Biostimulant to Mitigate Salt Stress in Maize Plants

Evaluation of Pseudomonas sp. for its multifarious plant growth promoting potential and its ability to alleviate biotic and abiotic stress in tomato (Solanum lycopersicum) plants

How Can Weedy Rice Stand against Abiotic Stresses? A Review

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