Disease resistance characterisation of improved cassava genotypes to Cassava Mosaic Disease at different ecozones
Twenty-two cassava genotypes and eight controls were evaluated in two cropping seasons for resistance to cassava mosaic disease (CMD) at the International Institute of Tropical Agriculture (IITA) fields, located at different ecozones of Nigeria. Disease incidence (DI) and index of symptom severity d...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Informa UK Limited
2015
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/74440 |
| _version_ | 1855530145960427520 |
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| author | Ariyo, O.A. Dixon, Alfred G.O. Atiri, G.I. Gachomo, E.W. Kotchoni, S.O. |
| author_browse | Ariyo, O.A. Atiri, G.I. Dixon, Alfred G.O. Gachomo, E.W. Kotchoni, S.O. |
| author_facet | Ariyo, O.A. Dixon, Alfred G.O. Atiri, G.I. Gachomo, E.W. Kotchoni, S.O. |
| author_sort | Ariyo, O.A. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Twenty-two cassava genotypes and eight controls were evaluated in two cropping
seasons for resistance to cassava mosaic disease (CMD) at the International Institute
of Tropical Agriculture (IITA) fields, located at different ecozones of Nigeria. Disease
incidence (DI) and index of symptom severity data were obtained monthly at
each location and genotype. Symptomatic leaves were also collected during evaluation
at each location, and virus was indexed by amplification in polymerase chain
reaction. Significant differences within and across locations were observed in the
reactions of cassava genotypes to CMD. DI across cassava genotypes was
significantly (p = 0.05) highest in the Ibadan (22.6%), followed by Onne (19.3%).
Generally, plants of clones 96/0860, 96/1439, 96/0160, 96/1089A, 96/1632, 96/1613,
96/1708, 96/0191, 96/0249 and 96/1565 had significantly lower values of DI in each
location. African cassava mosaic virus in single infection was the predominant causal
agent of CMD in IITA experimental fields under study.Twenty-two cassava genotypes and eight controls were evaluated in two cropping
seasons for resistance to cassava mosaic disease (CMD) at the International Institute
of Tropical Agriculture (IITA) fields, located at different ecozones of Nigeria. Disease
incidence (DI) and index of symptom severity data were obtained monthly at
each location and genotype. Symptomatic leaves were also collected during evaluation
at each location, and virus was indexed by amplification in polymerase chain
reaction. Significant differences within and across locations were observed in the
reactions of cassava genotypes to CMD. DI across cassava genotypes was
significantly (p = 0.05) highest in the Ibadan (22.6%), followed by Onne (19.3%).
Generally, plants of clones 96/0860, 96/1439, 96/0160, 96/1089A, 96/1632, 96/1613,
96/1708, 96/0191, 96/0249 and 96/1565 had significantly lower values of DI in each
location. African cassava mosaic virus in single infection was the predominant causal
agent of CMD in IITA experimental fields under study.Twenty-two cassava genotypes and eight controls were evaluated in two cropping
seasons for resistance to cassava mosaic disease (CMD) at the International Institute
of Tropical Agriculture (IITA) fields, located at different ecozones of Nigeria. Disease
incidence (DI) and index of symptom severity data were obtained monthly at
each location and genotype. Symptomatic leaves were also collected during evaluation
at each location, and virus was indexed by amplification in polymerase chain
reaction. Significant differences within and across locations were observed in the
reactions of cassava genotypes to CMD. DI across cassava genotypes was
significantly (p = 0.05) highest in the Ibadan (22.6%), followed by Onne (19.3%).
Generally, plants of clones 96/0860, 96/1439, 96/0160, 96/1089A, 96/1632, 96/1613,
96/1708, 96/0191, 96/0249 and 96/1565 had significantly lower values of DI in each
location. African cassava mosaic virus in single infection was the predominant causal
agent of CMD in IITA experimental fields under study. |
| format | Journal Article |
| id | CGSpace74440 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace744402023-09-10T09:10:47Z Disease resistance characterisation of improved cassava genotypes to Cassava Mosaic Disease at different ecozones Ariyo, O.A. Dixon, Alfred G.O. Atiri, G.I. Gachomo, E.W. Kotchoni, S.O. cassava mosaic disease resistance genotypes Twenty-two cassava genotypes and eight controls were evaluated in two cropping seasons for resistance to cassava mosaic disease (CMD) at the International Institute of Tropical Agriculture (IITA) fields, located at different ecozones of Nigeria. Disease incidence (DI) and index of symptom severity data were obtained monthly at each location and genotype. Symptomatic leaves were also collected during evaluation at each location, and virus was indexed by amplification in polymerase chain reaction. Significant differences within and across locations were observed in the reactions of cassava genotypes to CMD. DI across cassava genotypes was significantly (p = 0.05) highest in the Ibadan (22.6%), followed by Onne (19.3%). Generally, plants of clones 96/0860, 96/1439, 96/0160, 96/1089A, 96/1632, 96/1613, 96/1708, 96/0191, 96/0249 and 96/1565 had significantly lower values of DI in each location. African cassava mosaic virus in single infection was the predominant causal agent of CMD in IITA experimental fields under study.Twenty-two cassava genotypes and eight controls were evaluated in two cropping seasons for resistance to cassava mosaic disease (CMD) at the International Institute of Tropical Agriculture (IITA) fields, located at different ecozones of Nigeria. Disease incidence (DI) and index of symptom severity data were obtained monthly at each location and genotype. Symptomatic leaves were also collected during evaluation at each location, and virus was indexed by amplification in polymerase chain reaction. Significant differences within and across locations were observed in the reactions of cassava genotypes to CMD. DI across cassava genotypes was significantly (p = 0.05) highest in the Ibadan (22.6%), followed by Onne (19.3%). Generally, plants of clones 96/0860, 96/1439, 96/0160, 96/1089A, 96/1632, 96/1613, 96/1708, 96/0191, 96/0249 and 96/1565 had significantly lower values of DI in each location. African cassava mosaic virus in single infection was the predominant causal agent of CMD in IITA experimental fields under study.Twenty-two cassava genotypes and eight controls were evaluated in two cropping seasons for resistance to cassava mosaic disease (CMD) at the International Institute of Tropical Agriculture (IITA) fields, located at different ecozones of Nigeria. Disease incidence (DI) and index of symptom severity data were obtained monthly at each location and genotype. Symptomatic leaves were also collected during evaluation at each location, and virus was indexed by amplification in polymerase chain reaction. Significant differences within and across locations were observed in the reactions of cassava genotypes to CMD. DI across cassava genotypes was significantly (p = 0.05) highest in the Ibadan (22.6%), followed by Onne (19.3%). Generally, plants of clones 96/0860, 96/1439, 96/0160, 96/1089A, 96/1632, 96/1613, 96/1708, 96/0191, 96/0249 and 96/1565 had significantly lower values of DI in each location. African cassava mosaic virus in single infection was the predominant causal agent of CMD in IITA experimental fields under study. 2015-04-03 2016-05-25T11:59:33Z 2016-05-25T11:59:33Z Journal Article https://hdl.handle.net/10568/74440 en Limited Access Informa UK Limited Ariyo, O.A., Dixon, A.G., Atiri, G.I., Gachomo, E.W., & Kotchoni, S.O. (2015). Disease resistance characterisation of improved cassava genotypes to cassava mosaic disease at different ecozones. Archives of Phytopathology and Plant Protection, 48(6), 504-518. |
| spellingShingle | cassava mosaic disease resistance genotypes Ariyo, O.A. Dixon, Alfred G.O. Atiri, G.I. Gachomo, E.W. Kotchoni, S.O. Disease resistance characterisation of improved cassava genotypes to Cassava Mosaic Disease at different ecozones |
| title | Disease resistance characterisation of improved cassava genotypes to Cassava Mosaic Disease at different ecozones |
| title_full | Disease resistance characterisation of improved cassava genotypes to Cassava Mosaic Disease at different ecozones |
| title_fullStr | Disease resistance characterisation of improved cassava genotypes to Cassava Mosaic Disease at different ecozones |
| title_full_unstemmed | Disease resistance characterisation of improved cassava genotypes to Cassava Mosaic Disease at different ecozones |
| title_short | Disease resistance characterisation of improved cassava genotypes to Cassava Mosaic Disease at different ecozones |
| title_sort | disease resistance characterisation of improved cassava genotypes to cassava mosaic disease at different ecozones |
| topic | cassava mosaic disease resistance genotypes |
| url | https://hdl.handle.net/10568/74440 |
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