Relationship of phenotypic structures and allelochemical compounds of okra (Abelmoschus spp.) to resistance against Aphis gossypii Glover
The cotton aphid (Aphis gossypii) is one of the major pests of okra. Eleven okra varieties collected from farmers’ fields in Cameroon and four aphid-resistant accessions from The World Vegetable Center (AVRDC, Asian Vegetable Research and Development Center) were evaluated from October 2012 to March...
| Autores principales: | , , , , , , , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Informa UK Limited
2016
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/77331 |
| _version_ | 1855522804397506560 |
|---|---|
| author | Abang, A.F. Srinivasan, R. Kekeunou, S. Yeboah, M. Hanna, R. Lin, M.Y. Tenkouano, A. Bilong-Bilong, C.F. |
| author_browse | Abang, A.F. Bilong-Bilong, C.F. Hanna, R. Kekeunou, S. Lin, M.Y. Srinivasan, R. Tenkouano, A. Yeboah, M. |
| author_facet | Abang, A.F. Srinivasan, R. Kekeunou, S. Yeboah, M. Hanna, R. Lin, M.Y. Tenkouano, A. Bilong-Bilong, C.F. |
| author_sort | Abang, A.F. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The cotton aphid (Aphis gossypii) is one of the major pests of okra. Eleven okra varieties collected from farmers’ fields in
Cameroon and four aphid-resistant accessions from The World Vegetable Center (AVRDC, Asian Vegetable Research and
Development Center) were evaluated from October 2012 to March 2013, and another seven aphid-resistant accessions from
AVRDC were evaluated from March to July 2013 at AVRDC’s Nkolbisson station, Yaound e, Cameroon. Accessions
selected from these trials were screened in an advanced confirmatory screening in autumn (October December) 2013 in
Shanhua, Taiwan. Results showed that none of the farmers’ landraces were resistant to aphids. Two accessions (VI041210
and VI033824) with the lowest aphid populations had the highest trichome density. Analysis of various phytochemicals in
selected okra accessions revealed that higher nitrogen and potassium levels made the okra accessions susceptible to aphids
during the reproductive stage of the plants. Similarly, the total phenol content was lower in moderately resistant accessions
during their reproductive stage. Aphid feeding induced an increase in phenols, and to a lesser extent, tannins. Accessions
VI041210 and VI033824 could be incorporated into an integrated pest management strategy to enhance productivity of okra. |
| format | Journal Article |
| id | CGSpace77331 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace773312024-05-01T08:16:50Z Relationship of phenotypic structures and allelochemical compounds of okra (Abelmoschus spp.) to resistance against Aphis gossypii Glover Abang, A.F. Srinivasan, R. Kekeunou, S. Yeboah, M. Hanna, R. Lin, M.Y. Tenkouano, A. Bilong-Bilong, C.F. resistance okra aphids allelochemicals abelmoschus The cotton aphid (Aphis gossypii) is one of the major pests of okra. Eleven okra varieties collected from farmers’ fields in Cameroon and four aphid-resistant accessions from The World Vegetable Center (AVRDC, Asian Vegetable Research and Development Center) were evaluated from October 2012 to March 2013, and another seven aphid-resistant accessions from AVRDC were evaluated from March to July 2013 at AVRDC’s Nkolbisson station, Yaound e, Cameroon. Accessions selected from these trials were screened in an advanced confirmatory screening in autumn (October December) 2013 in Shanhua, Taiwan. Results showed that none of the farmers’ landraces were resistant to aphids. Two accessions (VI041210 and VI033824) with the lowest aphid populations had the highest trichome density. Analysis of various phytochemicals in selected okra accessions revealed that higher nitrogen and potassium levels made the okra accessions susceptible to aphids during the reproductive stage of the plants. Similarly, the total phenol content was lower in moderately resistant accessions during their reproductive stage. Aphid feeding induced an increase in phenols, and to a lesser extent, tannins. Accessions VI041210 and VI033824 could be incorporated into an integrated pest management strategy to enhance productivity of okra. 2016-01-02 2016-10-18T10:54:21Z 2016-10-18T10:54:21Z Journal Article https://hdl.handle.net/10568/77331 en Limited Access Informa UK Limited Abang, A.F., Srinivasan, R., Kekeunou, S., Yeboah, M., Hanna, R., Lin, M.Y., ... & Bilong Bilong, C.F. (2016). Relationship of phenotypic structures and allelochemical compounds of okra (Abelmoschus spp.) to resistance against Aphis gossypii Glover. International Journal of Pest Management, 62(1), 55-63. |
| spellingShingle | resistance okra aphids allelochemicals abelmoschus Abang, A.F. Srinivasan, R. Kekeunou, S. Yeboah, M. Hanna, R. Lin, M.Y. Tenkouano, A. Bilong-Bilong, C.F. Relationship of phenotypic structures and allelochemical compounds of okra (Abelmoschus spp.) to resistance against Aphis gossypii Glover |
| title | Relationship of phenotypic structures and allelochemical compounds of okra (Abelmoschus spp.) to resistance against Aphis gossypii Glover |
| title_full | Relationship of phenotypic structures and allelochemical compounds of okra (Abelmoschus spp.) to resistance against Aphis gossypii Glover |
| title_fullStr | Relationship of phenotypic structures and allelochemical compounds of okra (Abelmoschus spp.) to resistance against Aphis gossypii Glover |
| title_full_unstemmed | Relationship of phenotypic structures and allelochemical compounds of okra (Abelmoschus spp.) to resistance against Aphis gossypii Glover |
| title_short | Relationship of phenotypic structures and allelochemical compounds of okra (Abelmoschus spp.) to resistance against Aphis gossypii Glover |
| title_sort | relationship of phenotypic structures and allelochemical compounds of okra abelmoschus spp to resistance against aphis gossypii glover |
| topic | resistance okra aphids allelochemicals abelmoschus |
| url | https://hdl.handle.net/10568/77331 |
| work_keys_str_mv | AT abangaf relationshipofphenotypicstructuresandallelochemicalcompoundsofokraabelmoschusspptoresistanceagainstaphisgossypiiglover AT srinivasanr relationshipofphenotypicstructuresandallelochemicalcompoundsofokraabelmoschusspptoresistanceagainstaphisgossypiiglover AT kekeunous relationshipofphenotypicstructuresandallelochemicalcompoundsofokraabelmoschusspptoresistanceagainstaphisgossypiiglover AT yeboahm relationshipofphenotypicstructuresandallelochemicalcompoundsofokraabelmoschusspptoresistanceagainstaphisgossypiiglover AT hannar relationshipofphenotypicstructuresandallelochemicalcompoundsofokraabelmoschusspptoresistanceagainstaphisgossypiiglover AT linmy relationshipofphenotypicstructuresandallelochemicalcompoundsofokraabelmoschusspptoresistanceagainstaphisgossypiiglover AT tenkouanoa relationshipofphenotypicstructuresandallelochemicalcompoundsofokraabelmoschusspptoresistanceagainstaphisgossypiiglover AT bilongbilongcf relationshipofphenotypicstructuresandallelochemicalcompoundsofokraabelmoschusspptoresistanceagainstaphisgossypiiglover |