Recurrent phenotypic selection for low grasshopper food preference in rangeland alfalfa
cg.contact | unknown449@unknown.com | en_US |
cg.contributor.center | International Center for Agricultural Research in the Dry Areas - ICARDA | en_US |
cg.contributor.center | United States Department of Agriculture, Agricultural Research Service - USDA-ARS | en_US |
cg.contributor.funder | International Center for Agricultural Research in the Dry Areas - ICARDA | en_US |
cg.contributor.project | Communication and Documentation Information Services (CODIS) | en_US |
cg.contributor.project-lead-institute | International Center for Agricultural Research in the Dry Areas - ICARDA | en_US |
cg.identifier.doi | https://dx.doi.org/10.2307/3898676 | en_US |
cg.isijournal | ISI Journal | en_US |
cg.issn | 0022-409X | en_US |
cg.issue | 3 | en_US |
cg.journal | Journal of Range Management | en_US |
cg.subject.agrovoc | heritability | en_US |
cg.subject.agrovoc | Alfalfa | en_US |
cg.volume | 43 | en_US |
dc.contributor | Hewitt, G. B. | en_US |
dc.contributor | Miller, R. H. | en_US |
dc.creator | Berdahl, J. D. | en_US |
dc.date.accessioned | 2021-11-11T23:18:33Z | |
dc.date.available | 2021-11-11T23:18:33Z | |
dc.description.abstract | Grasshopper [Melanoplus spp. and Camnula pellucida (Scudder)] feeding is an important factor that can prevent establishment and reduce yields of alfalfa [Medicago sativa subsp. × varia (Martyn) Arcang.] interseeded into semiarid rangelands of the northern Great Plains. Objectives of this study were to determine narrow-sense heritability estimates of grasshopper preference for an alfalfa population and to develop low-preference alfalfa germplasm adapted to rangeland use. The base population was derived from 5 cultivars and an experimental strain, all of M. sativa L. subsp. sativa × M. sativa subsp. falcata (L.) Arcang. parentage, that had been developed for rangeland use in the northern Great Plains. Except for cycle 4 which was conducted in a greenhouse, each cycle of recurrent phenotypic selection involved transferring replicated half-sib families of 6- to 8-week-old plants in flats to a field site with a heavy infestation of grasshoppers. Half-sib families were scored for defoliation when the entire population was at least 50% defoliated. Narrow-sense heritability estimates of defoliation under greenhouse conditions for 31 half-sib families and their respective parents ranged from 45 to 58%, depending on how defoliation from the multi-species grasshopper populations was measured. Alfalfa populations produced from cycles 1, 3, and 5 of recurrent phenotypic selection were evaluated simultaneously under greenhouse conditions with a common grasshopper population and rated for defoliation on a scale from 1-5 where 1 = 0-20% and 5 = 81-100% defoliation. Mean defoliation decreased significantly (P<0.05) from 3.83 to 3.25 from cycle 1 to cycle 3, but the small decrease from 3.25 to 3.15 from cycle 3 to cycle 5 was not significant. The lack of progress from cycle 3 to cycle 5 was attributed to a major change in species composition of the grasshopper populations used in the selection process. | en_US |
dc.identifier | https://repository.arizona.edu/handle/10150/644910 | en_US |
dc.identifier | https://mel.cgiar.org/reporting/downloadmelspace/hash/3f74fd54467560761376ce0015308485/v/c8bc6e8f9a9bbff43062a86ab5d47e2d | en_US |
dc.identifier.citation | J. D. Berdahl, G. B. Hewitt, R. H. Miller. (31/5/1990). Recurrent phenotypic selection for low grasshopper food preference in rangeland alfalfa. Journal of Range Management, 43 (3), pp. 216-219. | en_US |
dc.identifier.status | Open access | en_US |
dc.identifier.uri | https://hdl.handle.net/20.500.11766/66364 | |
dc.language | en | en_US |
dc.publisher | Society for Range Management | en_US |
dc.rights | Copyrighted; Non-commercial educational use only | en_US |
dc.source | Journal of Range Management;43,(1990) Pagination 216-219 | en_US |
dc.subject | insect resistance | en_US |
dc.subject | medicago sativa subsp. x varia | en_US |
dc.subject | melanoplus spp. | en_US |
dc.subject | grasshopper defoliation | en_US |
dc.title | Recurrent phenotypic selection for low grasshopper food preference in rangeland alfalfa | en_US |
dc.type | Journal Article | en_US |
dcterms.available | 1990-05-31 | en_US |
dcterms.extent | 216-219 | en_US |