Teor de ácido cianídrico e taxa de crescimento do híbrido de sorgo x capim sudão durante o outono

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dc.contributor.authorSimili, Flávia Fernanda
dc.contributor.authorLima, Maria Lúcia Pereira
dc.contributor.authorde Medeiros, Maria Izabel Merino
dc.contributor.authorde Paz, Claudia Cristina Paro
dc.contributor.authorRuggieri, Ana Claudia [UNESP]
dc.contributor.authorReis, Ricardo Andrade [UNESP]
dc.contributor.institutionSecretaria de Agricultura e Abastecimento/SAA
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:29:53Z
dc.date.available2014-05-27T11:29:53Z
dc.date.issued2013-07-01
dc.description.abstractIn central Brazil after soybean or other annual agricultural species is harvested, sorghum hybrids are planted in the fall in order to establish pastures for grazing animals. This study conducted for two consecutive years aimed at quantifying the contents of hydrocyanic acid in the leaves and determining plant height, forage dry matter yield and the leaf/stem ratio for sorghum hybrid 1P400 at different ages. Statistical analysis was performed by regression analysis based on plant age. Leaf HCN content decreased with plant growth, ranging from 205.0 and 230.3 mg HCN/100 g leaf DM at two weeks old to 5.9 and 6.1 mg HCN/100 g leaf DM at five weeks old in the first and second year, respectively. The average heights measured varied from 60 and 56 cm, in the 4th week, to 117 and 151 cm, in the 8th week, during the first and second experimental year, respectively. Forage mass increased linearly with age and displayed average of 1.411 and 1.637 kg DM/ha in the first year and, 2.905 and 3.640 kg DM/ha in the second year, during the 7th and 8th week, respectively. Leaf proportion decreased while stem increased linearly with plant age. The leaf/stem ratio decreased with plant growth, elongation and increasing stem weight. The sorghum hybrid should be grazed only after five weeks or when the plant height is above 80 cm, in order to avoid the risk of cyanide poisoning.en
dc.description.affiliationAgência Paulista de Tecnologia dos Agronogócios/APTA Secretaria de Agricultura e Abastecimento/SAA, Avenida Bandeirantes, Ribeirão Preto 14.030-670. São Paulo - SP
dc.description.affiliationAgência Paulista de Tecnologia dos Agronogócios/APTA Secretaria de Agricultura e Abastecimento/SAA, Ribeirão Preto - São Paulo - SP
dc.description.affiliationInstituto de tecnologia de Alimentos/ITAL Agência Paulista de Tecnologia dos Agronogócios/APTA Secretaria de Agricultura e Abastecimento/SAA, Campinas - SP
dc.description.affiliationUniversidade Estadual Paulista 'Julio de Mesquita Filho'/UNESP Campus de Jaboticabal, Jaboticabal - SP
dc.description.affiliationUnespUniversidade Estadual Paulista 'Julio de Mesquita Filho'/UNESP Campus de Jaboticabal, Jaboticabal - SP
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 04/13427-3
dc.format.extent299-305
dc.identifierhttp://dx.doi.org/10.1590/S1413-70542013000400002
dc.identifier.citationCiencia e Agrotecnologia, v. 37, n. 4, p. 299-305, 2013.
dc.identifier.doi10.1590/S1413-70542013000400002
dc.identifier.file2-s2.0-84883413497.pdf
dc.identifier.issn1413-7054
dc.identifier.issn1981-1829
dc.identifier.lattes8605438226392855
dc.identifier.scieloS1413-70542013000400002
dc.identifier.scopus2-s2.0-84883413497
dc.identifier.urihttp://hdl.handle.net/11449/75849
dc.identifier.wosWOS:000323723700002
dc.language.isoeng
dc.language.isopor
dc.relation.ispartofCiência e Agrotecnologia
dc.relation.ispartofjcr0.672
dc.relation.ispartofsjr0,383
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAnnual grasses
dc.subjectCyanogenic plants
dc.subjectPicro-sodium test
dc.subjectToxic plant
dc.titleTeor de ácido cianídrico e taxa de crescimento do híbrido de sorgo x capim sudão durante o outonopt
dc.title.alternativeHydrocyanic acid content and growth rate of sorghum x sudangrass hybrid during fallen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/cagro/iaboutj.htm
unesp.author.lattes8605438226392855
unesp.author.lattes6555511233950866[5]
unesp.author.orcid0000-0002-7267-4552[4]
unesp.author.orcid0000-0002-4709-3094[6]
unesp.author.orcid0000-0002-9646-8489[5]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

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