Effect of Seed Piece Inoculation with Plant Growth-Promoting Rhizobacteria on Populations ofErwinia carotovoraon Potato Roots and in Daughter Tubers
- 1 January 1983
- journal article
- research article
- Published by Scientific Societies in Phytopathology®
- Vol. 73 (2), 217-219
- https://doi.org/10.1094/phyto-73-217
Abstract
The application of plant growth-promoting rhizobacteria (PGPR) to potato seed pieces prior to planting resulted in significantly reduced root zone populations of E. carotovora (Ec) in field trials. The percentage of daughter tubers infested naturally with Ec from plants treated with PGPR also was significantly reduced. Reductions resulted from inoculations with PGPR strains singly or in mixtures of 2 or more strains and were observed in 3 distinct geographic areas. PGPR may be useful in management of potato blackleg and soft rot diseases. A modified medium developed for Erwinia spp. was more sensitive than McConkey-pectate medium. This medium eliminated pectolytic pseudomonads that can interfere with development of colonies of pectolytic Erwinia spp.This publication has 8 references indexed in Scilit:
- Rhizobacteria of Sugar Beets: Effects of Seed Application and Root Colonization on YieldPhytopathology®, 1982
- Role of Deleterious Rhizobacteria as Minor Pathogens in Reducing Crop GrowthPhytopathology®, 1982
- Development of a Powder Formulation of Rhizobacteria for Inoculation of Potato Seed PiecesPhytopathology®, 1981
- Plant Growth-Promoting Rhizobacteria and Plant Growth Under Gnotobiotic ConditionsPhytopathology®, 1981
- Relationship of in vitro Antibiosis of Plant Growth-Promoting Rhizobacteria to Plant Growth and the Displacement of Root MicrofloraPhytopathology®, 1981
- Effects of Rhizosphere Colonization by Plant Growth-Promoting Rhizobacteria on Potato Plant Development and YieldPhytopathology®, 1980
- Increased Potato Yields by Treatment of Seedpieces with Specific Strains of Pseudomonas fluorescens and P. putidaPhytopathology®, 1978
- Isolation of Soft-Rot Erwinia spp. from Agricultural Soils Using an Enrichment TechniquePhytopathology®, 1976