dc.contributor.advisor | Carver, Brett | |
dc.contributor.author | Dunn, Bruce Lunday | |
dc.date.accessioned | 2014-04-15T22:05:59Z | |
dc.date.available | 2014-04-15T22:05:59Z | |
dc.date.issued | 2004-07-01 | |
dc.identifier.uri | https://hdl.handle.net/11244/9317 | |
dc.description.abstract | Rhopalosiphum padi L., or the bird cherry-oat aphid, causes significant damage to winter wheat (Triticum aestivum L.) in the Great Plains. Our objective was to develop a juvenile-plant bioassay for BCO tolerance that allows rapid phenotypic characterization of tolerance in a growth chamber study using root and shoot weight measurements of 3-wk old seedlings produced in seed germination pouches. Based on preliminary results, bioassay methods were used in verification experiments conducted on one hundred and forty-nine Oklahoma, Colorado, SRPN, and CIMMYT lines indicated levels of responses to feeding (roots being greater than shoots), but both averaging around a 30 % reduction. Findings of indigenous genetic variation in six of the eight control treatments (P>0.05) further exonerated the need for control plants to curve variation by a ratio of infested-to-control. Correlation relationships between three of the four sources showed that both roots and shoots are key to finding tolerance. | |
dc.format | application/pdf | |
dc.language | en_US | |
dc.publisher | Oklahoma State University | |
dc.rights | Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material. | |
dc.title | Rapid Phenotypic Assessment of Bird Cherry-oat Aphid Tolerance in Winter Wheat | |
dc.type | text | |
dc.contributor.committeeMember | Porter, David | |
dc.contributor.committeeMember | Hunger, Robert | |
osu.filename | Dunn_okstate_0664M_1042.pdf | |
osu.college | Agricultural Sciences and Natural Resources | |
osu.accesstype | Open Access | |
dc.description.department | Department of Plant and Soil Sciences | |
dc.type.genre | Thesis | |
dc.subject.keywords | wheat | |
dc.subject.keywords | bird cherry-oat aphid | |
dc.subject.keywords | bioassay | |