Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/321625
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dc.contributor.authorVEASEY, E. A.eng
dc.contributor.authorVALARINI, M. J.eng
dc.contributor.authorMECELIS, N. R.eng
dc.contributor.authorALCANTARA, P. B.eng
dc.contributor.authorALCANTARA, V. de B. G.eng
dc.contributor.authorTULMAN NETO, A.eng
dc.contributor.authorABBADO, M. R.eng
dc.contributor.authorCARDELLI, M. A.eng
dc.date.accessioned2020-04-16T01:00:26Z-
dc.date.available2020-04-16T01:00:26Z-
dc.date.created1998-06-08
dc.date.issued1996
dc.identifier.citationBoletim de Industria Animal, Nova Odessa, v. 53, n. ùnico, p. 61-64, 1996.eng
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/321625-
dc.descriptionSpontaneous or induced mutations provide important genetic variability,useful to many plant species breeding programs. With the objective to observe mutageniceffect of gamma radiation in Jaragua grass (Hyparrhenia rufa), seeds were irradiated withthe dose of 400 Gy from ~°Co source. The Mi generation was evaluated in the field.Different morphological characters were recorded, such as divergent racemes, awnlessspikelets, low growth, narrow leaves, and chimerism. No variation in flowering time wasspikelets, low growth, narrow leaves, and chimerism. No variobserved. A preliminary progeny test with M2 off-type and control plants showed variationwithin progeny mainly for the character divergent racemes, which presented Mendeliansegregation. Embryo sac analysis, by the clearing technique with phase contrastmicroscopy, showed the presence of single and multiple aposporous embryo sacs as well asa lower frequency of meiotic embryo sacs indicating the facultative apomictic breedingsystem of this species. Further investigation is needed to verify whether irradiation hascaused a break in apomixis.eng
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectRadio gamaeng
dc.subjectMelhoramento geneticoeng
dc.subjectGamma irradiationeng
dc.titleUse of gamma-radiation to increase genetic variability in Jaragua grass (Hyparrhenia rufa).eng
dc.typeArtigo de periódicoeng
dc.date.updated2020-04-16T01:00:26Z
dc.subject.thesagroApomixiaeng
dc.subject.thesagroCapim Jaraguáeng
dc.subject.thesagroHyparrhenia Rufaeng
dc.subject.thesagroRadiaçãoeng
dc.subject.thesagroSementeeng
dc.subject.nalthesaurusapomixiseng
dc.subject.nalthesaurusplant breedingeng
dc.subject.nalthesaurusseedseng
dc.description.notesTítulo em português: Uso de radiação gama para aumentar a variabilidade genética em capim Jaraguá (Hyparrhenia rufa).eng
riaa.ainfo.id321625eng
riaa.ainfo.lastupdate2020-04-15
dc.contributor.institutionELIZABETH ANN VEASEY, INSTITUTO DE ZOOTECNIA. Secao de Agronomia de Plantas Forrageiras; MARIA JOSÉ VALARINI, INSTITUTO DE ZOOTECNIA. Secao de Agronomia de Plantas Forrageiras. Bosista do CNPQ; NILZA ROCHA MECELIS, CNPGC; PAULO BARDAUIL ALCÂNTARA, INSTITUTO DE ZOOTECNIA. Secao de Agronomia de Plantas Forrageiras; VALQUÍRIA DE BEM GOMES ALCÂNTARA, INSTITUTO DE ZOOTECNIA. Secao de Agronomia de Plantas Forrageiras; AUGUSTO TULMAN NETO, CENA; MARCELA RIBEIRO ABBADO, Estagiária do INSTITUTO DE ZOOTECNIA; MARCIA ATAURI CARDELLI, INSTITUTO DE ZOOTECNIA. Secao de Agronomia de Plantas Forrageiras.eng
Appears in Collections:Artigo em periódico indexado (CNPGC)

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