Identification and characterization of different accessions of itchgrass (Rottboellia cochinchinensis)

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dc.contributor.authorAlves, Pedro Luís C. A. [UNESP]
dc.contributor.authorBachega, Mateus F. [UNESP]
dc.contributor.authorMoro, José Roberto [UNESP]
dc.contributor.authorLemos, Manoel Victor F. [UNESP]
dc.contributor.authorAlves, Eliane C. C. [UNESP]
dc.contributor.authorSilva, Marco Aurélio S. [UNESP]
dc.contributor.authorMoro, Fabíola V. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-28T20:07:42Z
dc.date.available2022-04-28T20:07:42Z
dc.date.issued2003-12-01
dc.description.abstractStudies were conducted to identify and characterize different accessions of itchgrass. Seeds were collected in the counties of Aramina, Campinas, Dumont, Igarapava, Jaboticabal, and Ribeirão Preto, all in the state of São Paulo, Brazil. Accessions were characterized based on dimensions of their stomata, stomatal index (SI), and length and width of their seed (caryopses and husk). Chromosome number and length also were determined, and accessions were further differentiated using molecular markers (polymerase chain reaction [PCR]). Itchgrass from Ribeirão Preto had much longer and narrower seeds than those from the other locations, and their husks were longer as well. Accessions had similar SIs, both on the abaxial and adaxial leaf surfaces. Stomata from Campinas and Igarapava accessions were longer and wider, whereas those from Dumont and Ribeirão Preto were similar and smaller than all others. The accession from Ribeirão Preto is diploid (2n = 20); the rest are polyploid, with the total length of chromosomes smaller than all others. These differences were confirmed by molecular differentiation (PCR).en
dc.description.affiliationDBAA-FCAV/UNESP, R. Acesso Prof. P.D. Castellane, s/n, CEP 14884-900 Jaboticabal, SP
dc.description.affiliationUnespDBAA-FCAV/UNESP, R. Acesso Prof. P.D. Castellane, s/n, CEP 14884-900 Jaboticabal, SP
dc.format.extent177-180
dc.identifierhttp://dx.doi.org/10.1614/0043-1745(2003)051[0177:IACODA]2.0.CO;2
dc.identifier.citationWeed Science, v. 51, n. 2, p. 177-180, 2003.
dc.identifier.doi10.1614/0043-1745(2003)051[0177:IACODA]2.0.CO;2
dc.identifier.issn0043-1745
dc.identifier.scopus2-s2.0-33646347868
dc.identifier.urihttp://hdl.handle.net/11449/224748
dc.language.isoeng
dc.relation.ispartofWeed Science
dc.sourceScopus
dc.subjectBiotypes
dc.subjectChromosomes
dc.subjectMorphology
dc.titleIdentification and characterization of different accessions of itchgrass (Rottboellia cochinchinensis)en
dc.typeArtigo

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