Effect of Inoculation with Arbuscular Mycorrhizal Fungi on Selected Spring Wheat Lines

Abstract

An experiment was performed in a completely randomized split-plot design using five lines of spring wheat (Triticum aestivum L.) (AW-774, AC Carberry, HY-162, Major and AAC Scotia) and two arbuscular mycorrhizal fungi (AMF) strains (Rhizoglomus irregulare and Glomus cubense). Two different inoculant forms (solid and liquid) for the G. cubense strain were evaluated. The main plot was AMF, and the subplot was spring wheat lines. Data on heading date, plant height, fresh, and dry biomass, yield, grain quality (chemical composition of the seeds, gluten, and sugar), root structure, and colonization by AMF were collected. The results show a positive effect of inoculation in comparison with the control treatment. The liquid and solid G. cubense inoculants provided better results than inoculation with R. irregulare. Fungus indicators were in agreement with root morphological parameters because of the effect induced by AMF activity. Yield increased significantly in the mycorrhizal treatments.

Phosphate Solubilizing Rhizobacteria Could Have a Stronger Influence on Wheat Root Traits and Aboveground Physiology Than Rhizosphere P Solubilization

“…However, it remains unclear why inoculation with PSB 3 that exhibit the highest IAA production rate did not affect root traits (especially in 15-day old seedlings) as compared to either the remaining PSB isolates or to non-inoculated seedlings. Other bacterial traits such as ammonia production, medium acidification and osmotic stress tolerance ( Table 1 ) may positively contribute in seedling robustness including important early-stage root nutrient absorptive capacity that could improve RP solubilization and subsequent utilization ( Abbasi et al, 2015 ; Kumar, 2016 ; Pérez et al, 2016 ).…”

“…in 15-day old seedlings) as compared to either the remaining PSB isolates or to non-inoculated seedlings. Other bacterial traits such as ammonia production, medium acidification and osmotic stress tolerance (Table 1) may positively contribute in seedling robustness including important early-stage root nutrient absorptive capacity that could improve RP solubilization and subsequent utilization (Abbasi et al, 2015;Kumar, 2016;Peŕez et al, 2016). The PGP bacterial traits are well documented (Cerozi and Fitzsimmons, 2016;Vandamme et al, 2016;Paul and Sinha, 2017;Suleman et al, 2018;Liu et al, 2019;Parastesh et al, 2019) in terms of increasing plant growth and yield, meanwhile, spatial and temporal modifications of root functional traits in response to PSB inoculation are still not well-known.…”

“…Multiple beneficial effects of soil microorganisms have widely been identified as key drivers for a better plant growth and increased soil P availability ( Kumar, 2016 ; Pérez et al, 2016 ; Bargaz et al, 2018 ). PGPR exhibiting high PSC have been described to benefit plant growth and yield when associated with roots and even within other plant parts such as leaves ( Fahad et al, 2015 ; Jambhulkar et al, 2016 ; Tang et al, 2018 ).…”

Culturable Bacterial Endophytes From Sedimentary Humic Acid-Treated Plants

“…Therefore, more rational, environmentally friendly, and efficient agricultural practices are needed. One approach is the use of biofertilizers containing living microorganisms (Dastager et al, 2010;Bhardwaj et al, 2014;Canellas et al, 2015;Pérez et al, 2016;Suhag, 2016;Dias et al, 2017). This strategy has recently gained relevance with the development of a new generation of gene sequencing techniques, which have allowed the assessment of microbe-plant relationships and the development of a new evolutionary model, the holobiontic theory (Rosenberg and Zilber-Rosenberg, 2016).…”

Dominikia emiratia and Rhizoglomus dunense, two new species in the Glomeromycota

“…The positive impacts of AMF on plants and soils have consequently generated a growing interest in using them, as a biological tool, for plant production and protection of threatened or devastated sites. However, it was also recognized that the effectiveness of different AMF species in modulating plants and soil may differ greatly (Abbott and Robson 1981;Sinclair et al 2014;Pérez et al 2016).…”