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| Content Provider | Springer Nature Link |
|---|---|
| Author | Guzzo, E C Chiorato, A F Lourenção, A L Corrêa, O M B Vendramim, J D Carbonell, S A M |
| Copyright Year | 2015 |
| Abstract | Resistance of common bean (Phaseolus vulgaris) varieties is an important tool to control Acanthoscelides obtectus (Say) and Zabrotes subfasciatus (Boheman) (Coleoptera: Chrysomelidae: Bruchinae) worldwide. However, bioassays to characterize the resistance of a genotype can be difficult to perform. Therefore, the current study sought to correlate the morpho-agronomic traits of P. vulgaris genotypes with their resistance to A. obtectus and Z. subfasciatus to facilitate genotype characterization. Bean samples of each genotype were infested with newly emerged insect couples, and the number of adults obtained in each genotype was quantified (value used as a resistance parameter). The resistance index was calculated by dividing the number of adults obtained in each genotype by the one obtained in the cultivar Bolinha, used as the standard for susceptibility. Fifty genotypes were evaluated for A. obtectus and 202 for Z. subfasciatus. All genotypes were characterized according to their resistance to each insect and 18 other morpho-agronomic traits, for a total of 19 descriptors. Principal component analyses did not show any correlation between insect resistance and the morpho-agronomic traits of the genotypes. Further, the thousand seeds weight (TSW), which is indicative of the genotype center of origin was tested considering genotypes from Mesoamerican with low TSW, while those from Andean with high TSW. Thus, the lack of correlation between genotype resistance and TSW indicates that resistance to A. obtectus and Z. subfasciatus in P. vulgaris is not related to the host center of origin. |
| Starting Page | 619 |
| Ending Page | 625 |
| Page Count | 7 |
| File Format | |
| ISSN | 1519566X |
| Journal | Neotropical Entomology |
| Volume Number | 44 |
| Issue Number | 6 |
| e-ISSN | 16788052 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2015-08-08 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Life Sciences host plant resistance Entomology coevolution center of origin Agriculture seed beetles Arcelin bean |
| Content Type | Text |
| Resource Type | Article |
| Subject | Insect Science |
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