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Physiological and Biochemical Behaviors of Date Palm Vitroplants Treated with Microbial Consortia and Compost in Response to Salt Stress

Toubali, Salma; Tahiri, Abdelilah; Anli, Mohamed; Symanczik, Sarah; Boutasknit, Abderrahim; Ait-El-Mokhtar, Mohamed; Ben-Laouane, Raja; Oufdou, Khalid; Ait-Rahou, Youssef; Ben-Ahmed, Hela; Jemo, Martin; Hafidi, Mohamed and Meddich, Abdelilah (2020) Physiological and Biochemical Behaviors of Date Palm Vitroplants Treated with Microbial Consortia and Compost in Response to Salt Stress. Applied Sciences, 10 (23), p. 8665.

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Document available online at: https://www.mdpi.com/2076-3417/10/23/8665/htm


Summary

The main challenge of the agricultural sector is to develop new ecological technologies that increase the yields and the tolerance of crops to abiotic constraints, especially in arid areas. The objective of this study was to test the potential roles of biofertilizers, namely, arbuscular mycorrhizal fungi (AMF), a native AMF consortium (AMF1) and an exotic AMF strain (AMF2); plant growth-promoting rhizobacteria (PGPR); and compost (comp), applied separately or in combination, in improving the tolerance of date palm vitroplants to salt stress. Plants were grown under non-stressed (0 mM NaCl) or stressed conditions (120 and 240 mM NaCl). Salt stress negatively affected growth and physiological parameters. However, biofertilizers used alone or in combination increased these traits in either the presence or absence of salinity. The two tripartite combinations PGPR+AMF1+Comp and PGPR+AMF2+Comp effciently increased plant height compared to the controls, with respective enhancements of 47% and 48% under non-stressed conditions (0 mM), 44% and 43% under 120 mM NaCl and 42% and 41% under 240 mM NaCl. Moreover, under 240 mM NaCl level, the PGPR, AMF1+Comp and PGPR+AMF1+Comp treatments improved the shoot dry weight by 128%, 122% and 113% respectively compared to the stressed control plants submitted to 240 mM NaCl. The tripartite combinations PGPR+AMF1/AMF2+Comp improved salt stress tolerance of plants by increasing plant growth, accumulation of osmotic adjustment compounds and antioxidant enzyme activity compared to control plants and the other treatments.


EPrint Type:Journal paper
Keywords:arbuscular mycorrhizal fungi, plant growth-promoting rhizobacteria, compost, tolerance, salt stress, date palm, Abacus, FiBL10010, nutrient management, soil fertility
Agrovoc keywords:
Language
Value
URI
English
nutrient management
http://aims.fao.org/aos/agrovoc/c_330697
English
soil fertility
http://aims.fao.org/aos/agrovoc/c_7170
Subjects: Soil > Soil quality
Crop husbandry > Crop health, quality, protection
Research affiliation: Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Soil > Nutrient management
Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Soil > Soil fertility
Morocco
Tunisia
DOI:10.3390/app10238665
Related Links:https://www.fertiledatepalm.net/fdp-home-news.html
Deposited By: Symanczik, Dr. Sarah
ID Code:38927
Deposited On:21 Jan 2021 09:48
Last Modified:21 Jan 2021 09:48
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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