Effect of Super Absorbent Polymer and Irrigation Deficit on Water Use Efficiency, Growth and Yield of Cotton

Fallahi, Hamid-Reza; Kalantari, Reza Taherpour; Aghhavani-Shajari, Mahsa; Soltanzadeh, Mohammad-Ghasem

doi:10.15835/nsb739626

Cited by 20 publications

(9 citation statements)

References 8 publications

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“…Interestingly, WP decreased in the CL soil with the addition of either SAP. These results contrast with most of the studies that rather suggest superabsorbents to increase WP; 2,13,14,46 this observation is accentuated in treatments at 70% SM. Because WP is related to plant biomass, its decrease is attributed to waterlogging stress which caused a decrease in the growth of spinach.…”

Section: ■ Discussioncontrasting

confidence: 99%

“…SAPs should only be employed in areas with severe water stress. 13,46 On the other hand, for SD soils, the SDW significantly increased with the application of a commercial SAP. This is observed at all levels of SM which confirms the suitability of the nanocellulose SAP as a water retention agent promoting plant growth under water stress.…”

Section: ■ Discussionmentioning

confidence: 98%

“…Supporting previous studies, our findings suggest that the optimal concentration of SAPs varies depending on soil texture, dispersibility, and superabsorbent characteristics. SAPs should only be employed in areas with severe water stress. , …”

Section: Discussionmentioning

confidence: 99%

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Biodegradation of a Nanocellulose Superabsorbent and Its Effect on the Growth of Spinach (Spinacea oleracea)

Barajas‐Ledesma

Stocker

Wong

et al. 2021

ACS Agric. Sci. Technol.

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In this study, spinach (Spinacea oleracea) plants were grown in two soils, a clay loam (CL) and a sandy (SD) soil, amended with two types of superabsorbent polymers (SAPs), nanocellulose and commercial, at different levels of soil moisture: 70, 40, and 20%. The effect of the superabsorbent on the soil properties, water management, and plant biomass was measured and compared to that in soils treated with a commercial anionic polyacrylamide-based SAP. Plant biomass is the highest in SD soil amended with a commercial superabsorbent. However, it decreases in the CL soil when a superabsorbent is applied, independent of the SAP type. This effect is magnified when a nanocellulose SAP is used; this is likely attributed to waterlogging stress and the fast biodegradation of this superabsorbent, where approximately 50% of the initial mass remains after 5 days of exposure. The use of a nanocellulose SAP as a water retention agent offers the potential for a much-needed sustainable solution for global agriculture. Future studies are needed to modify the structure of the nanocellulose SAP to inhibit its biodegradation and increase its benefits for agricultural use.

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Section: ■ Discussioncontrasting

confidence: 99%

Section: ■ Discussionmentioning

confidence: 98%

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Biodegradation of a Nanocellulose Superabsorbent and Its Effect on the Growth of Spinach (Spinacea oleracea)

Barajas‐Ledesma

Stocker

Wong

et al. 2021

ACS Agric. Sci. Technol.

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“…On the contrary, the adoption of suitable, site-specific agronomic practices might be a more immediate alternative. Prolonged and intense droughts could be managed via deficit-irrigation regimes, or the application of zeolite (or synthetic super absorbent polymers), as these practices have been proven to improve water-use efficiency (Papastylianou and Argyrokastritis, 2014;Fallahi et al, 2015). The latter has also been found to increase nutrient uptake and efficiency (Ahmed et al, 2010).…”

Section: Future Implicationsmentioning

confidence: 99%

Cotton versus climate change: the case of Greek cotton production

Engonopoulos

Kouneli

Mavroeidis

et al. 2021

Not Bot Horti Agrobo

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Through the last century, the increased greenhouse gases emissions altered the atmosphere’s composition and resulted to the phenomenon known as climate change. Climate change threatens the sustainability of the agricultural sector in the Mediterranean region. Droughts and extreme heat waves will probably become more frequent in the next few decades, thus maintaining sufficient yields in heat and drought susceptible major crops will be challenging. In Greece, cotton is of paramount economic importance. Besides the fact that it is regarded as the most significant fiber crop, Greece is the main cotton producer of the European Union. The aim of the present review was to examine the environmental factors that might affect cotton production in Greece and assess whether (or not) climate change has the potential to limit the productivity of this crop in the near future. According to the existing literature, cotton can adapt to the changing climate. Climate change-induced elevated CO2 levels and temperatures might even benefit cotton. The mitigation of the adverse effects of climate change is possible via the adaptation of site-specific agronomic practices. A simplistic framework, based on the literature and the goals of the European Union, that aims to the preservation of sufficient cotton yields in Greece is proposed in the present study.

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“…Drought stress is a threatening environmental constraint limiting the growth and production of plants in most arid and semiarid regions of worldwide [1]. With global climate change, drought stress is causing increasing concern because of the increasing demand for water for agriculture and forestry and human consumption [2,3]. In general, plants differ in drought tolerance.…”

Section: Introductionmentioning

confidence: 99%

Exogenous Glycine Betaine Reduces Drought Damage by Mediating Osmotic Adjustment and Enhancing Antioxidant Defense in Phoebe hunanensis

Yang¹,

Huang²,

Ge³

et al. 2022

Phyton

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Drought stress negatively impacts growth and physiological processes in plants. The foliar application of glycine betaine (GB) is an effective and low-cost approach to improve the drought tolerance of trees. This study examined the effect of exogenously applied GB on the cell membrane permeability, osmotic adjustment, and antioxidant enzyme activities of Phoebe hunanensis Hand.-Mazz under drought stress. Two levels (0 and 800 mL) of water irrigation were tested under different applied GB concentrations (0, 50, 100, and 200 mM). Drought stress decreased the relative water content by 58.5% while increased the electric conductivity, malondialdehyde, proline, soluble proteins, soluble sugars, and antioxidant enzyme activities (superoxide dismutase, catalase, peroxidase) by up to 62.9%, 42.4%, 87.0%, 19.1%, 60.5%, 68.3%, 71.7%, and 83.8%, respectively, on the 25 th day. The foliar application of GB, especially at 100 mM, increased the relative water content of P. hunanensis leaves under drought stress. The concentration of GB from 50 to 100 mM effectively alleviated the improvement of cell membrane permeability and inhibited the accumulation of membrane lipid peroxidation products. Under drought stress, the concentrations of proline, soluble proteins, and soluble sugars in the leaves of P. hunanensis increased as the applied GB concentration was increased and the water stress time was prolonged. Exogenously applied GB decreased oxidative stress and improved antioxidant enzyme activities as compared with treatments without GB application. Furthermore, the physiological and biochemical indexes of P. hunanensis showed a certain dose effect on exogenous GB concentration. These results suggest that GB helps maintain the drought tolerance of P. hunanensis.

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Effect of Super Absorbent Polymer and Irrigation Deficit on Water Use Efficiency, Growth and Yield of Cotton

Cited by 20 publications

References 8 publications

Biodegradation of a Nanocellulose Superabsorbent and Its Effect on the Growth of Spinach (Spinacea oleracea)

Biodegradation of a Nanocellulose Superabsorbent and Its Effect on the Growth of Spinach (Spinacea oleracea)

Cotton versus climate change: the case of Greek cotton production

Exogenous Glycine Betaine Reduces Drought Damage by Mediating Osmotic Adjustment and Enhancing Antioxidant Defense in Phoebe hunanensis

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