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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal; Embrapa Pecuária Sul. |
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Data corrente: |
26/11/2018 |
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Data da última atualização: |
17/01/2019 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CHEICK, N. A.; ABREU, U. G. P. de; MEIRELLES, A. C.; SILVA, L. A. C. da; GARCIA, J. B.; SANTOS, S. A.; MAZZOCATO, A. C. |
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Afiliação: |
Nazira Ahmed Cheick, UCDB; URBANO GOMES PINTO DE ABREU, CPAP; Ana Clara Meirelles, UFMS; Laura Aparecida Carvalho da Silva, UCDB; JOAO BATISTA GARCIA, CPAP; SANDRA APARECIDA SANTOS, CPAP; ANA CRISTINA MAZZOCATO, CPPSUL. |
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Título: |
Identification of descriptors for morphological characterization of vegetative tillers of native grass Mesosetum chaseae Luces. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Simposio Internacional de Recursos Genéticos para las Américas y el Caribe, ano 1, v. 1, p. 879-882, ago. 2018. |
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Idioma: |
Inglês |
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Notas: |
Compiladores José Fernando De La Torre Sánchez, David Urbán Duarte. Edição do XI Simposio Internacional de Recursos Genéticos para las Américas y el Caribe, Guadalajara, 2017, sob o tema "Integración de la Biodiversidad ante el Cambio Climático". |
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Conteúdo: |
Mesosetum chaseae Luces is a tropical forage native to America, found in regions of the Pantanal with poor sandy soil. Germplasm accessions has been maintained in genebanks in the Nhumirim ranch of the Embrapa Pantanal. This study aimed to verify the existence or morphological descriptors of vegetative tillers that could differentiate the accessions of M. chaseae. Samples of this grass were collected from two populations (non-flooded open grassland and flooded open grassland). Ten seedlings were removed in each grassland and then, they were transplanted into pots. After the establishment, the following morphological characters were analyzed: tiller length; adult leaf length; adult leaf width; apical leaf length; apical leaf width; number of nodes per tiller; number of internodes per tiller; number of adult leaves; length of the second internode; number of trichomes of the apical leaf and adult leaf. Variance analysis and Tukey post-test was performed to test differences among accessions. Principal component analysis was used to discard descriptors that contributed least to the genetic divergence among accessions. Discriminant analysis was adopted to verify the percentage of correct classification using selected descriptors. There was a significant difference (P<0.05) for most of the descriptors evaluated, except for number of trichomes of the apical leaf and adult leaf. From 11 characters, five (tiller length, adult leaf length, adult leaf width, number of internodes per tiller and length of the second internode) were selected as being the most important for determining the morphological divergence among the populations. MenosMesosetum chaseae Luces is a tropical forage native to America, found in regions of the Pantanal with poor sandy soil. Germplasm accessions has been maintained in genebanks in the Nhumirim ranch of the Embrapa Pantanal. This study aimed to verify the existence or morphological descriptors of vegetative tillers that could differentiate the accessions of M. chaseae. Samples of this grass were collected from two populations (non-flooded open grassland and flooded open grassland). Ten seedlings were removed in each grassland and then, they were transplanted into pots. After the establishment, the following morphological characters were analyzed: tiller length; adult leaf length; adult leaf width; apical leaf length; apical leaf width; number of nodes per tiller; number of internodes per tiller; number of adult leaves; length of the second internode; number of trichomes of the apical leaf and adult leaf. Variance analysis and Tukey post-test was performed to test differences among accessions. Principal component analysis was used to discard descriptors that contributed least to the genetic divergence among accessions. Discriminant analysis was adopted to verify the percentage of correct classification using selected descriptors. There was a significant difference (P<0.05) for most of the descriptors evaluated, except for number of trichomes of the apical leaf and adult leaf. From 11 characters, five (tiller length, adult leaf length, adult leaf width, number of internodes per til... Mostrar Tudo |
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Thesagro: |
Banco de Germoplasma; Planta Forrageira. |
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Thesaurus Nal: |
Forage grasses; Germplasm conservation. |
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Categoria do assunto: |
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K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/190170/1/Identification-cpsul.pdf
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Marc: |
LEADER 02731nam a2200241 a 4500
001 2103522
005 2019-01-17
008 2018 bl uuuu u00u1 u #d
100 1 $aCHEICK, N. A.
245 $aIdentification of descriptors for morphological characterization of vegetative tillers of native grass Mesosetum chaseae Luces.$h[electronic resource]
260 $aSimposio Internacional de Recursos Genéticos para las Américas y el Caribe, ano 1, v. 1, p. 879-882, ago. 2018.$c2018
500 $aCompiladores José Fernando De La Torre Sánchez, David Urbán Duarte. Edição do XI Simposio Internacional de Recursos Genéticos para las Américas y el Caribe, Guadalajara, 2017, sob o tema "Integración de la Biodiversidad ante el Cambio Climático".
520 $aMesosetum chaseae Luces is a tropical forage native to America, found in regions of the Pantanal with poor sandy soil. Germplasm accessions has been maintained in genebanks in the Nhumirim ranch of the Embrapa Pantanal. This study aimed to verify the existence or morphological descriptors of vegetative tillers that could differentiate the accessions of M. chaseae. Samples of this grass were collected from two populations (non-flooded open grassland and flooded open grassland). Ten seedlings were removed in each grassland and then, they were transplanted into pots. After the establishment, the following morphological characters were analyzed: tiller length; adult leaf length; adult leaf width; apical leaf length; apical leaf width; number of nodes per tiller; number of internodes per tiller; number of adult leaves; length of the second internode; number of trichomes of the apical leaf and adult leaf. Variance analysis and Tukey post-test was performed to test differences among accessions. Principal component analysis was used to discard descriptors that contributed least to the genetic divergence among accessions. Discriminant analysis was adopted to verify the percentage of correct classification using selected descriptors. There was a significant difference (P<0.05) for most of the descriptors evaluated, except for number of trichomes of the apical leaf and adult leaf. From 11 characters, five (tiller length, adult leaf length, adult leaf width, number of internodes per tiller and length of the second internode) were selected as being the most important for determining the morphological divergence among the populations.
650 $aForage grasses
650 $aGermplasm conservation
650 $aBanco de Germoplasma
650 $aPlanta Forrageira
700 1 $aABREU, U. G. P. de
700 1 $aMEIRELLES, A. C.
700 1 $aSILVA, L. A. C. da
700 1 $aGARCIA, J. B.
700 1 $aSANTOS, S. A.
700 1 $aMAZZOCATO, A. C.
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Registro original: |
Embrapa Pantanal (CPAP) |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
12/08/2003 |
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Data da última atualização: |
29/03/2011 |
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Autoria: |
MARTINS, J. F. da S.; MATTOS, M. L. T.; CUNHA, U. S. da; SCHRÖDER, E. P. |
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Título: |
Aperfeiçoamento do método para avaliação da deriva de inseticida granulado aplicado por via aérea em lavouras de arroz irrigado. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Pelotas: Embrapa Clima Temperado, 2002. |
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Páginas: |
4 p. |
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Série: |
(Embrapa Clima Temperado. Comunicado Técnico, 85) |
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Idioma: |
Português |
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Palavras-Chave: |
Avaliação; Insetidicda granulado; Lavouras. |
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Thesagro: |
Arroz Irrigado; Método. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/31612/1/comunicado85.pdf
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Marc: |
LEADER 00696nam a2200217 a 4500
001 1744162
005 2011-03-29
008 2002 bl uuuu u0uu1 u #d
100 1 $aMARTINS, J. F. da S.
245 $aAperfeiçoamento do método para avaliação da deriva de inseticida granulado aplicado por via aérea em lavouras de arroz irrigado.
260 $aPelotas: Embrapa Clima Temperado$c2002
300 $a4 p.
490 $a(Embrapa Clima Temperado. Comunicado Técnico, 85)
650 $aArroz Irrigado
650 $aMétodo
653 $aAvaliação
653 $aInsetidicda granulado
653 $aLavouras
700 1 $aMATTOS, M. L. T.
700 1 $aCUNHA, U. S. da
700 1 $aSCHRÖDER, E. P.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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