Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5760738 | Biological Control | 2017 | 33 Pages |
Abstract
Streptomyces galilaeus strain KPS-C004 obtained from the plant-parasitic nematode infested soil suppressed up to 58% of root knot disease of chili caused by Meloidogyne incognita in a greenhouse experiment. The strain promoted plant growth by increasing biomass, shoot and root length by 81%, 46% and 100%, respectively. The same trend was observed with plant nutrients, increases of nitrogen, phosphorus, potassium, calcium, magnesium and iron in chili in the treatments inoculated with spores of the strain KPS-C004 were up to 27%, 27%, 40%, 18%, 37% and 137%, respectively. The highest control efficiency of the strain was recorded when inoculated its spores in the vicinity of chili roots before nematode invasion. In addition, S. galilaeus strain KPS-C004 was capable of surviving and proliferating in the nematode infested soils throughout the entire 45Â days of a cultivation period. However, reinoculation at every 15Â days is recommended in order to achieve better control potential of the strain. Besides its biological control potential and plant growth-promoting attributes, the strain did not affect soil bacterial community. Altogether, its beneficial characteristics suggested that S. galilaeus strain KPS-C004 could be a potential biocontrol agent for being integrated in the root knot disease management program.
Related Topics
Life Sciences
Agricultural and Biological Sciences
Agronomy and Crop Science
Authors
Pongrawee Nimnoi, Neelawan Pongsilp, Pornthip Ruanpanun,