Resistance of common bean lines to the potato leafhopper (Homoptera: Cicadellidae)
In 1993, seed from the EMP series reportedly resistant to leafhoppers (Empoasca Kraemeri Ross & Moore), was obtained from Centro Internacional de Agricultura Tropical (CIAT), South America and planted at Ridgetown, ON. Under severe potato leafhopper, Empoasca fabae (Hams), pressure the selections ex...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
1998
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/44041 |
| _version_ | 1855530955270258688 |
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| author | Schaafsma, AW Cardona Mejía, César Kornegay, Julia L. Wylde, AM Michaels, TE |
| author_browse | Cardona Mejía, César Kornegay, Julia L. Michaels, TE Schaafsma, AW Wylde, AM |
| author_facet | Schaafsma, AW Cardona Mejía, César Kornegay, Julia L. Wylde, AM Michaels, TE |
| author_sort | Schaafsma, AW |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | In 1993, seed from the EMP series reportedly resistant to leafhoppers (Empoasca Kraemeri Ross & Moore), was obtained from Centro Internacional de Agricultura Tropical (CIAT), South America and planted at Ridgetown, ON. Under severe potato leafhopper, Empoasca fabae (Hams), pressure the selections exhibited varying degrees of leafhopper injury. The majority of the EMP lines displayed lower hopperburn scores than 'Ex Rico 23' white navy bean. In 1994 and 1995 the selected EMP lines were planted in small field plots at Ridgetown along with locally adapted bean cultivars of high susceptibility, moderate susceptibility, and moderate resistance. Numbers of nymphs varied among genotypes with some EMP lines sustaining concomitant low nymphal populations and low hopperburn scores, suggesting an antixenosis effect. However, several EMP lines exhibiting low hopperburn scores sustained high numbers of nymphs suggesting a tolerant mode of resistance. Uniformity of adult leafhopper populations among plots suggests that the mechanism of resistance has no effect on adult populations. The data from these experiments demonstrate that there is a high level of resistance to potato leafhoppers in several of the breeding lines obtained from CIAT, such as EMP 423 and EMP 419, and that many of these lines are adapted to the growing conditions of southern Ontario. |
| format | Journal Article |
| id | CGSpace44041 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1998 |
| publishDateRange | 1998 |
| publishDateSort | 1998 |
| record_format | dspace |
| spelling | CGSpace440412023-02-15T05:17:33Z Resistance of common bean lines to the potato leafhopper (Homoptera: Cicadellidae) Schaafsma, AW Cardona Mejía, César Kornegay, Julia L. Wylde, AM Michaels, TE phaseolus vulgaris empoasca fabae common bean pest resistance resistencia a las plagas In 1993, seed from the EMP series reportedly resistant to leafhoppers (Empoasca Kraemeri Ross & Moore), was obtained from Centro Internacional de Agricultura Tropical (CIAT), South America and planted at Ridgetown, ON. Under severe potato leafhopper, Empoasca fabae (Hams), pressure the selections exhibited varying degrees of leafhopper injury. The majority of the EMP lines displayed lower hopperburn scores than 'Ex Rico 23' white navy bean. In 1994 and 1995 the selected EMP lines were planted in small field plots at Ridgetown along with locally adapted bean cultivars of high susceptibility, moderate susceptibility, and moderate resistance. Numbers of nymphs varied among genotypes with some EMP lines sustaining concomitant low nymphal populations and low hopperburn scores, suggesting an antixenosis effect. However, several EMP lines exhibiting low hopperburn scores sustained high numbers of nymphs suggesting a tolerant mode of resistance. Uniformity of adult leafhopper populations among plots suggests that the mechanism of resistance has no effect on adult populations. The data from these experiments demonstrate that there is a high level of resistance to potato leafhoppers in several of the breeding lines obtained from CIAT, such as EMP 423 and EMP 419, and that many of these lines are adapted to the growing conditions of southern Ontario. 1998 2014-10-02T08:33:08Z 2014-10-02T08:33:08Z Journal Article https://hdl.handle.net/10568/44041 en Open Access |
| spellingShingle | phaseolus vulgaris empoasca fabae common bean pest resistance resistencia a las plagas Schaafsma, AW Cardona Mejía, César Kornegay, Julia L. Wylde, AM Michaels, TE Resistance of common bean lines to the potato leafhopper (Homoptera: Cicadellidae) |
| title | Resistance of common bean lines to the potato leafhopper (Homoptera: Cicadellidae) |
| title_full | Resistance of common bean lines to the potato leafhopper (Homoptera: Cicadellidae) |
| title_fullStr | Resistance of common bean lines to the potato leafhopper (Homoptera: Cicadellidae) |
| title_full_unstemmed | Resistance of common bean lines to the potato leafhopper (Homoptera: Cicadellidae) |
| title_short | Resistance of common bean lines to the potato leafhopper (Homoptera: Cicadellidae) |
| title_sort | resistance of common bean lines to the potato leafhopper homoptera cicadellidae |
| topic | phaseolus vulgaris empoasca fabae common bean pest resistance resistencia a las plagas |
| url | https://hdl.handle.net/10568/44041 |
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