Role of Rhizobia in Suppressing the Root Diseases of Soybean Under Soil Amendment

Autor: G. PARVEEN, R. NOREEN, H.A. SHAFIQUE, V. SULTANA, S. EHTESHAMUL-HAQUE, M. ATHAR
Jazyk: English<br />Spanish; Castilian<br />Portuguese
Rok vydání: 2019
Předmět:
Zdroj: Planta Daninha, Vol 37 (2019)
Druh dokumentu: article
ISSN: 0100-8358
DOI: 10.1590/s0100-83582019370100038
Popis: ABSTRACT: Rhizobia are soil bacteria, characterized by their unique ability to colonize the roots of leguminous crops, where they form nitrogen fixing nodules. Considerable evidence has been accumulated to identify the benefits associated with use of rhizobia as biocontrol agents against soil-borne pathogens, in addition to biological nitrogen fixation. In this study, out of four rhizobial isolates tested, Bradyrhizobium sp. inhibited the radial growth of all the test fungi viz: Macrophomina phaseolina, Rhizoctonia solani, Fusarium solani and F. oxysporum, while other 3 rhizobial isolates inhibited the growth of at least three fungi. Cell free culture filtrates of rhizobia also showed nematicidal activity by killing second-stage juveniles of Meloidogyne javanica at varying degrees. Application of rhizobial isolates alone or in mustard cake amended soil significantly (p
Databáze: Directory of Open Access Journals