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Prior weakening of Macrophomina phaseolina and Fusarium propagules for enhancing efficiency of Brassica amendments
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View Archive Info| Field | Value | |
| Title |
Prior weakening of Macrophomina phaseolina and Fusarium propagules for enhancing efficiency of Brassica amendments
Not Available |
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| Creator |
Ritu Mawar
Satish Lodha |
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| Subject |
Cumin Fusarium oxysporum f. sp. cumini Guar Macrophomina phaseolina Mustard residues Mustard oil cake
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| Description |
Not Available
In a two year field study, the effect of varying intensities of sub-lethal heating on the efficiency of Brassica amendments in controlling viable populations of Macrophomina phaseolina and Fusarium oxysporum f sp. cumini was determined in an arid region of India. After 30 d of dry summer exposure of pathogen infested soil, incorporation of mustard residues and oil cake (0.18% and 0.04% w/w) and then applying one irrigation caused significant reduction by 75.3–81.3% in viable counts of M. phaseolina that causes dry root rot of legumes and by 93.9% in counts of F.o. f. sp. cumini causing wilt of cumin (Cuminum cyminum L.) at 0–15 and 16–30 cm depths. Increasing duration of summer exposure to 60 d improved the reductions in viable propagules of M. phaseolina by 83.6–90.4% and in F.o. f. sp. cumini by 78.2–94.8% at same soil depths. At certain heat levels, reduction in viable population of Fusarium due to amendments and irrigation was greater than that recorded in Macrophomina. Significantly low levels of reduction in pathogenic propagules of Macrophomina (63.9–71.4%) and Fusarium (48.0–57.2%) under shade compared to unshaded conditions indicated that mild heating did not cause discernible weakening effect. In second season also, 89.2–91.5% and 78.5–95.8% reduction in counts of Macrophomina and Fusarium, respectively was achieved by the application of amendments after 60 d of summer exposure at 0–30 cm soil depth. These results suggested a new approach to improve the control of soil-borne plant pathogens in hot arid regions by combining prolonged sub-lethal heating, effective naturally available on-farm wastes as soil amendments and one summer irrigation. Not Available |
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| Date |
2019-07-26T10:41:15Z
2019-07-26T10:41:15Z 2009-12-01 |
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| Type |
Research Paper
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| Identifier |
7
Not Available http://krishi.icar.gov.in/jspui/handle/123456789/21816 |
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| Language |
English
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| Relation |
Not Available;
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| Publisher |
Not Available
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