Effect of heavy metals on growth and survival of Macrophomina phaseolina (Tassi) Goid. |
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| Authors: | R C Dubey R S Dwivedi |
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| Institution: | (1) Department of Botany, Banaras Hindu University, 221 005 Varanasi, India |
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| Abstract: | Summary The effects of Cd, Co, Ni and Zn on growth and survival of Macrophomina phaseolina were studied in vitro. Cd, Ni and Co at 500  g ml–1 inhibited growth by 78.8%, 73.6% and 11.8%, respectively, after 4 days at 25 ± 1°C. The mycelial dry weight yield was enhanced by 2.1% at 100 g ml–1 Zn. The population of the pathogen declined in soil amended separately with Cd, Co, Ni and Zn. Cd (4000 mg kg–1) proved to be the most toxic, by completely inhibiting the survival of the pathogen in soil after 20 days. |
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| Keywords: | Macrophomina phaseolina Heavy metals Toxicity Growth Survival Cd Ni Co Zn |
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