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dc.contributor.authorShewmaker, G. E.
dc.contributor.authorMayland, H. F.
dc.contributor.authorRosenau, R. C.
dc.contributor.authorAsay, K. H.
dc.date.accessioned2020-09-24T02:59:13Z
dc.date.available2020-09-24T02:59:13Z
dc.date.issued1989-03-01
dc.identifier.citationShewmaker, G. E., Mayland, H. F., Rosenau, R. C., & Asay, K. H. (1989). Silicon in C-3 grasses: effects on forage quality and sheep preference. Journal of Range Management, 42(2), 122-127.
dc.identifier.issn0022-409X
dc.identifier.doi10.2307/3899308
dc.identifier.urihttp://hdl.handle.net/10150/645079
dc.description.abstractSilicon in forage reduces dry matter digestibility and may reduce grazing preference. Two studies were conducted with the following objectives: (1) to evaluate a method of determining grazing preference, and (2) to characterize the distribution and solubility of silicon in 31 accessions of C-3 grasses and relate these traits to grazing preference and estimated forage digestibility. Forage samples were clipped at the beginning of each 7 to 10-day grazing period corresponding to 6 phenological stages of the Agropyron sp. Samples were washed and analyzed for acid detergent fiber (ADF), neutral detergent fiber (NDF), and silicon in ADF and NDF residues. Leaf silicon concentrations increased from the vegetative to seed-ripe stage. Genera were aligned into 3 groups based on the increase in leaf silicon concentration with advancing phenological age. Silicon concentrations in leaves of Agropyron, Pseudoroegneria, and Thinopyrum increased at nearly twice the rate of those in Critesion, Hordeum, Leymus and Psathyrostachys. Elymus leaves contained higher concentrations of silicon at the vegetative stage than the other groups, but the accumulation rate was intermediate. About 32% of total leaf silicon remained in NDF and 76% in ADF residues at the vegetative stage. These insoluble portions of silicon increased with aging. Preference was positively related to estimated dry matter digestibility at boot and anthesis, but was not related to fiber or silicon measurements. Leaf harshness was negatively related to preference at seed-ripe stage. Further progress in characterizing the role of silicon in C-3 forage grasses should be possible by studying a representative species from each group.
dc.language.isoen
dc.publisherSociety for Range Management
dc.relation.urlhttps://rangelands.org/
dc.rightsCopyright © Society for Range Management.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectsilicon
dc.subjectspecies differences
dc.subjectIdaho
dc.subjectsheep
dc.subjectphenology
dc.subjectgrasses
dc.subjectfeeding preferences
dc.titleSilicon in C-3 grasses: effects on forage quality and sheep preference
dc.typetext
dc.typeArticle
dc.identifier.journalJournal of Range Management
dc.description.noteThis material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries.
dc.description.collectioninformationThe Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform August 2020
dc.source.volume42
dc.source.issue2
dc.source.beginpage122-127
refterms.dateFOA2020-09-24T02:59:13Z


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