Responses of lentil to co-inoculation with phosphate-solubilizing rhizobial strains and arbuscular mycorrhizal fungi

• Published in: Journal of plant nutrition Vol. 29; no. 8; pp. 1509 - 1522
• Main Authors: Zarei, M, Saleh-Rastin, N, Alikhani, H.A, Aliasgharzadeh, N
• Format: Journal Article
• Language: English
• Published: Philadelphia, NJ Taylor & Francis Group 01.08.2006; Taylor & Francis
• Subjects: Agronomy. Soil science and plant productions; arbuscular mycorrhizal fungi (AMF); Biological and medical sciences; calcareous soils; co-inoculation; dry matter accumulation; Economic plant physiology; Fundamental and applied biological sciences. Psychology; Glomus intraradices; Glomus mosseae; Lens culinaris; lentil; lentils; Mesorhizobium ciceri; microbial colonization; nodulation; nutrient content; nutrient uptake; phosphate-solubilizing rhizobial strains; phosphates; Rhizobium leguminosarum; Rhizobium leguminosarum bv. viciae; rock phosphate; soil fertility; soil pH; strain differences; strains; superphosphate; Symbiosis (nodules, symbiotic nitrogen fixation, mycorrhiza...); synergism; vesicular arbuscular mycorrhizae; Phosphates; Mixed infection; Phycomycetes; Glomus mosseae; Lens culinaris; Inorganic element; Fungi; Inoculation; Dicotyledones; Angiospermae; Bacteria; Soil science; Microbial solubilization; Diazotrophy; Thallophyta; Symbiosis; Macronutrient(mineral); PLANT NUTRITION; arbuscular mycorrhizal fungi (AMF); lentil; Symbiont; Strain; Response; phosphate-solubilizing rhizobial strains; Grain legume; Glomus intraradices; Procaryote; Endomycorrhiza; Leguminosae; Vegetable crop; Mycorrhiza; Soil biology; co-inoculation; Phosphorus compound; Spermatophyta; Rhizobiaceae; Soil plant relation; Plant microorganism relation
• ISSN: 0190-4167; 1532-4087
• DOI: 10.1080/01904160600837667

The purpose of this study was to evaluate the responses of lentil (Lens culinaris cv. 'Ziba') to co-inoculation with arbuscular mycorrhizal (AM) fungi and some indigenous rhizobial strains varying in phosphorus (P)-solubilizing ability in a calcareous soil with high pH and low amounts of available P and nitrogen (N). A factorial experiment with completely randomized block design was conducted under controlled greenhouse conditions. The treatments consisted of (1) three inoculants of Rhizobium leguminosarum bv. viciae strains and a mixed rhizobial inoculant with an effective P-solubilizer strain of Mesorhizobium ciceri, (2) two AM fungal species, Glomus mosseae and Glomus intraradices, (3) two P sources, superphosphate and phosphate rock. Four replications were prepared for each treatment and a related control. After the growth period of three months, the dry matter of shoots plus seeds, their P and N contents, and percent of root colonized by AM fungus were measured. The results showed that the effects of AM fungi, rhizobial strains, and P fertilizers were highly significant (p < 0.01) for all the characteristics studied. The rhizobial strain with P-solubilizing ability showed a more beneficial effect on plant growth and nutrient uptake than the strain without this ability, although both strains had similar effectiveness for N2-fixation in symbiosis with lentil. Synergistic relationships were observed between AM fungi and some rhizobial strains that related to the compatible pairing of these two microsymbionts. The P-uptake efficiency was increased when P fertilizers were applied along with AM fungi and/or P-solubilizer rhizobial strains.