Influence of host and non-host rhizospheres and organic amendments on survival of Fusarium oxysporum f. sp. elaeidis
| Autor: | M.O. Adeniji, J.J. Oritsejafor |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Rhizosphere
education.field_of_study biology fungi Population food and beverages Plant Science biology.organism_classification complex mixtures Spore Chlamydospore Germination Botany Fusarium oxysporum Genetics Spore germination education Ecology Evolution Behavior and Systematics Mycelium Biotechnology |
| Zdroj: | Mycological Research. 94:57-63 |
| ISSN: | 0953-7562 |
| DOI: | 10.1016/s0953-7562(09)81264-1 |
| Popis: | Chlamydospores of Fusarium oxysporum f. sp. elaeidis germinated and produced mycelium in the rhizospheres of susceptible and tolerant cultivars of the host ( Elaeis guineensis ) and four non-host plants. Higher chlamydospore germination was recorded in the non-host rhizospheres than in host rhizospheres and no significant differences were recorded in germination response to susceptible and tolerant host rhizospheres. Increase in the soil population of F. oxysporum f. sp. elaeidis was stimulated by all test plants. Of the five plants tested, Zea mays was the most active in the stimulation of fungal growth and survival. All organic amendments tested except farmyard manure, applied at 1 and 5 % (w/w) to infested soils, stimulated chlamydospore germination and initial increases in the population of the pathogen. Germination was, however, soon followed by lysis of germlings and subsequent reduction in the population of the fungus. All amendments except Manihot esculenta leaves caused significant reduction in pathogen populations of amended soils below those in non-amended soils, 4 wk after application. Farmyard manure was the most effective in reducing the population of F. oxysporum f. sp. elaeidis . |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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