Effect of seed inoculation with phosphate solubilizing bacteria isolated from phosphate solid sludge on seedling growth of wheat (<i>Triticum durum</i> ‘Karim’)

Aliyat, Fatima Zahra; Guilli, Mohammed El; Nassiri, Laila; Ibijbijen, Jamal

doi:10.17660/actahortic.2021.1305.21

Cited by 1 publication

(1 citation statement)

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“…Bacteria, in particular, contribute significantly to plant development through mechanisms such as enhancing nutrient availability (e.g., nitrogen, phosphorus, and potassium), secreting phytohormones, and indirectly fostering systemic resistance [5][6][7][8][9][10]. In this intricate interplay, phosphate-solubilizing bacteria (PSB), a specific subset of soil bacteria, emerge as promising agents capable of improving phosphorus utilization efficiency, thereby promoting economically and environmentally sustainable crop development [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Elevating Sorghum Prosperity: Unveiling Growth Trends through Phosphate-Solubilizing Bacteria and Arbuscular Mycorrhizal Fungi Inoculation in Phosphate-Enriched Substrates

Aliyat,

El Guilli,

Nassiri

et al. 2024

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This study aimed to elucidate the impact of phosphate-solubilizing bacteria (PSB) and arbuscular mycorrhizal fungi (AMF) inoculation on sorghum growth within substrates derived from phosphate solid sludge, with the overarching objective of repurposing phosphate sludge to be a viable agricultural substrate. Four PSB strains (Serratia rubidaea, Enterobacter bugandensis, Pantoea agglomerans, Pseudomonas sp) were meticulously selected from phosphate solid sludge, along with two AMF strains (Rhizophagus intraradices and Funneliformis mosseae), constituting the experimental inocula. Phosphate solid sludge was judiciously blended with peat at varying volumetric proportions (0%, 10%, 20%, 40%, and 60%), providing the matrix for sorghum cultivation, and concomitantly subjected to inoculation with PSB and AMF. Following a meticulously monitored two-month duration, a comprehensive evaluation of diverse morphological parameters, biomass accrual, nitrogen content, total phosphorus concentration, potassium levels, calcium content, and root colonization in sorghum plants was conducted. The empirical findings underscored a discernible decline in the assessed parameters with escalating concentrations of phosphate solid sludge. Particularly noteworthy was the pronounced amelioration observed in plants inoculated with AMF in comparison to both the control and PSB-inoculated counterparts. In conclusion, the application of raw phosphate solid sludge as an agricultural substrate is deemed unsuitable, prompting the imperative need for further in-depth investigations to ascertain the nuanced intricacies underlying these outcomes.

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