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Alleviation of Associated Drought and Salinity Stress’ Detrimental Impacts on an Eggplant Cultivar (‘Bonica F1’) by Adding Biochar

To investigate the impact of biochar on eggplant growth, physiology, and yield parameters under separate and associated drought and salt stress, a pot experiment was carried out. An eggplant variety (‘Bonica F1’) was exposed to one NaCl concentration (S1 = 300 mM), three irrigation regimes (FI: full...

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Autores principales: Hannachi, Sami, Signore, Angelo, Mechi, Lassaad
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10054642/
https://www.ncbi.nlm.nih.gov/pubmed/36987085
http://dx.doi.org/10.3390/plants12061399
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author Hannachi, Sami
Signore, Angelo
Mechi, Lassaad
author_facet Hannachi, Sami
Signore, Angelo
Mechi, Lassaad
author_sort Hannachi, Sami
collection PubMed
description To investigate the impact of biochar on eggplant growth, physiology, and yield parameters under separate and associated drought and salt stress, a pot experiment was carried out. An eggplant variety (‘Bonica F1’) was exposed to one NaCl concentration (S1 = 300 mM), three irrigation regimes (FI: full irrigation; DI: deficit irrigation; ARD: alternate root-zone drying irrigation), and one dose of biochar (B1 = 6% by weight). Our findings demonstrated that associated drought and salt stress had a greater negative impact on ‘Bonica F1’ performance in comparison to single drought or salt stress. Whereas, adding biochar to the soil improved the ability of ‘Bonica F1’ to alleviate the single and associated effects of salt and drought stress. Moreover, in comparison to DI under salinity, biochar addition in ARD significantly increased plant height, aerial biomass, fruit number per plant, and mean fresh weight per fruit by 18.4%, 39.7%, 37.5%, and 36.3%, respectively. Furthermore, under limited and saline irrigation, photosynthetic rate (A(n)), transpiration rate (E), and stomatal conductance (g(s)) declined. In addition, the interaction between ARD and biochar effectively restored the equilibrium between the plant chemical signal (ABA) and hydraulic signal (leaf water potential). As a result, mainly under salt stress, with ARD treatment, intrinsic water use efficiency (WUE(i)) and yield traits were much higher than those in DI. Overall, biochar in combination with ARD could be an efficient approach for preserving crop productivity.
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spelling pubmed-100546422023-03-30 Alleviation of Associated Drought and Salinity Stress’ Detrimental Impacts on an Eggplant Cultivar (‘Bonica F1’) by Adding Biochar Hannachi, Sami Signore, Angelo Mechi, Lassaad Plants (Basel) Article To investigate the impact of biochar on eggplant growth, physiology, and yield parameters under separate and associated drought and salt stress, a pot experiment was carried out. An eggplant variety (‘Bonica F1’) was exposed to one NaCl concentration (S1 = 300 mM), three irrigation regimes (FI: full irrigation; DI: deficit irrigation; ARD: alternate root-zone drying irrigation), and one dose of biochar (B1 = 6% by weight). Our findings demonstrated that associated drought and salt stress had a greater negative impact on ‘Bonica F1’ performance in comparison to single drought or salt stress. Whereas, adding biochar to the soil improved the ability of ‘Bonica F1’ to alleviate the single and associated effects of salt and drought stress. Moreover, in comparison to DI under salinity, biochar addition in ARD significantly increased plant height, aerial biomass, fruit number per plant, and mean fresh weight per fruit by 18.4%, 39.7%, 37.5%, and 36.3%, respectively. Furthermore, under limited and saline irrigation, photosynthetic rate (A(n)), transpiration rate (E), and stomatal conductance (g(s)) declined. In addition, the interaction between ARD and biochar effectively restored the equilibrium between the plant chemical signal (ABA) and hydraulic signal (leaf water potential). As a result, mainly under salt stress, with ARD treatment, intrinsic water use efficiency (WUE(i)) and yield traits were much higher than those in DI. Overall, biochar in combination with ARD could be an efficient approach for preserving crop productivity. MDPI 2023-03-21 /pmc/articles/PMC10054642/ /pubmed/36987085 http://dx.doi.org/10.3390/plants12061399 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Hannachi, Sami
Signore, Angelo
Mechi, Lassaad
Alleviation of Associated Drought and Salinity Stress’ Detrimental Impacts on an Eggplant Cultivar (‘Bonica F1’) by Adding Biochar
title Alleviation of Associated Drought and Salinity Stress’ Detrimental Impacts on an Eggplant Cultivar (‘Bonica F1’) by Adding Biochar
title_full Alleviation of Associated Drought and Salinity Stress’ Detrimental Impacts on an Eggplant Cultivar (‘Bonica F1’) by Adding Biochar
title_fullStr Alleviation of Associated Drought and Salinity Stress’ Detrimental Impacts on an Eggplant Cultivar (‘Bonica F1’) by Adding Biochar
title_full_unstemmed Alleviation of Associated Drought and Salinity Stress’ Detrimental Impacts on an Eggplant Cultivar (‘Bonica F1’) by Adding Biochar
title_short Alleviation of Associated Drought and Salinity Stress’ Detrimental Impacts on an Eggplant Cultivar (‘Bonica F1’) by Adding Biochar
title_sort alleviation of associated drought and salinity stress’ detrimental impacts on an eggplant cultivar (‘bonica f1’) by adding biochar
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10054642/
https://www.ncbi.nlm.nih.gov/pubmed/36987085
http://dx.doi.org/10.3390/plants12061399
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