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Control of the root-rot and root-knot disease complex by Pseudomonas aeruginosa: impact of bacterial rhizosphere colonization

100%

Siddiqui I. A., Etheshamul-Haque S., Shaukat S. S.

Acta Agrobotanica

2001

tom 54

nr 1

The potential of 3 Pseudomonas aeruginosa strains as biocontrol agents of rootinfecting fungi Macrophomina phaseolina, Flusarium solani and Rhizoctonia solani and the root-knot nematode Meloidogyne javanica Was tested on chi!i and uridbean under greenhouse conditions. All the three strains significantly reduced nematode populations in soil, invasion, multiplication and gall formation due to M. javanica. Root infection by fungi was also effectively suppressed following P. aerllginosa application. Bacterial antagonists exhibited better biocontrol and growth promoting activity in 15-day-old plants than did those harvested at 30 or 45 days. Population of the bacterium in the rhizosphere declined rapidly after 15 days of nematode inoculation. Strain Pa-5 showed maximum nodulation in 15-day-old samplings while strain Pa-7 showed highest number of nodules in 30 and 45-day-old uridbean plants.

Ograniczanie wyników

1 Acta Agrobotanica

1 Etheshamul-Haque S.

1 Shaukat S. S.

1 Siddiqui I. A.

1 2001

Wyniki wyszukiwania

Control of the root-rot and root-knot disease complex by Pseudomonas aeruginosa: impact of bacterial rhizosphere colonization