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Registro Completo |
Biblioteca(s): |
Embrapa Agropecuária Oeste. |
Data corrente: |
27/01/1998 |
Data da última atualização: |
15/01/2013 |
Autoria: |
PITOL, C.; BROCH, D. L.; ERBES, E. J. |
Título: |
Campos demonstrativos de cultivares de soja e híbrido de milho, safra 96/97, Ponta Porã-MS. |
Ano de publicação: |
1997 |
Fonte/Imprenta: |
Maracajú: Fundação MS para Pesquisa e Difusão de Tecnologias Agropecuárias, 1997. |
Páginas: |
nao paginado. |
Série: |
(Fundação MS. Resultados de Pesquisa e Experimentação, 7). |
Idioma: |
Português |
Palavras-Chave: |
Avaliacao; Brasil; Cultivar; Evaluation; Maize; Mato Grosso do Sul; Ponta Pora; Soybean. |
Thesagro: |
Glycine Max; Milho Hibrido; Soja; Zea Mays. |
Thesaurus Nal: |
Brazil; varieties. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00889nam a2200313 a 4500 001 1240656 005 2013-01-15 008 1997 bl uuuu u0uu1 u #d 100 1 $aPITOL, C. 245 $aCampos demonstrativos de cultivares de soja e híbrido de milho, safra 96/97, Ponta Porã-MS. 260 $aMaracajú: Fundação MS para Pesquisa e Difusão de Tecnologias Agropecuárias$c1997 300 $anao paginado. 490 $a(Fundação MS. Resultados de Pesquisa e Experimentação, 7). 650 $aBrazil 650 $avarieties 650 $aGlycine Max 650 $aMilho Hibrido 650 $aSoja 650 $aZea Mays 653 $aAvaliacao 653 $aBrasil 653 $aCultivar 653 $aEvaluation 653 $aMaize 653 $aMato Grosso do Sul 653 $aPonta Pora 653 $aSoybean 700 1 $aBROCH, D. L. 700 1 $aERBES, E. J.
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Registro original: |
Embrapa Agropecuária Oeste (CPAO) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
02/01/2019 |
Data da última atualização: |
24/01/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
CHAVES, A. L. A.; CHIAVEGATTO, R. B.; GAVILANES, M. L.; BENITES, F. R. G.; TECHIO, V. H. |
Afiliação: |
FLAVIO RODRIGO GANDOLFI BENITES, CNPGL. |
Título: |
Effect of polyploidy on the leaf epidermis structure of Cynodon dactylon (L.) Pers. (Poaceae). |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Biologia, v. 73, n. 10, p. 1007-1013, 2018. |
Idioma: |
Inglês |
Conteúdo: |
Abstract Cynodon dactylon has different ploidy levels. The ?gigas effect? in morphoanatomic traits caused by the increase in the genetic material is poorly studied in the species. Thus, the present research aimed at carrying out a quantitative and descriptive study of the leaf epidermis structure in PI291169?04 (2n = 2× = 18); PI477004?26 (2n = 3× = 27); PI291721?22 (2n = 4× = 36); PI289750?10 (2n = 5× = 45) accessions, in order to investigate the consequences of the polyploidy. Adult leaves were fixed in FAA and the paradermal sections obtained through the scraping technique were stained in 5% safranin. The measurements of the stomata characteristics (polar diameters ? PD, equatorial diameters ? QD, stomatal density ? SD, stomatal functionality ? SF, and stomatal index ? SI) were taken by means of the software ImageJ. For analysis in scanning electron microscopy, leaf fragments were fixed in Karnovsky, dehydrated in an acetone series, subjected to a critical point and covered with gold. Stomata were classified as paracytic, dumbbell-shaped and partially covered by papillae. Tector trichomes were classified as uniseriate with pointed tips. In general, as ploidy level increased, there was an increase in stomata dimension and a decrease in SD. Diploid and triploid accessions were easily differentiated in relation to PD and QD, which makes it an indirect method for determining the variation in ploidy level. The variables SD and SI were not efficient to discriminate the accessions. Leaf epidermis has characteristics that emphasize the effect of polyploidization process and its analysis may be used to screening of genotypes in breeding programs. MenosAbstract Cynodon dactylon has different ploidy levels. The ?gigas effect? in morphoanatomic traits caused by the increase in the genetic material is poorly studied in the species. Thus, the present research aimed at carrying out a quantitative and descriptive study of the leaf epidermis structure in PI291169?04 (2n = 2× = 18); PI477004?26 (2n = 3× = 27); PI291721?22 (2n = 4× = 36); PI289750?10 (2n = 5× = 45) accessions, in order to investigate the consequences of the polyploidy. Adult leaves were fixed in FAA and the paradermal sections obtained through the scraping technique were stained in 5% safranin. The measurements of the stomata characteristics (polar diameters ? PD, equatorial diameters ? QD, stomatal density ? SD, stomatal functionality ? SF, and stomatal index ? SI) were taken by means of the software ImageJ. For analysis in scanning electron microscopy, leaf fragments were fixed in Karnovsky, dehydrated in an acetone series, subjected to a critical point and covered with gold. Stomata were classified as paracytic, dumbbell-shaped and partially covered by papillae. Tector trichomes were classified as uniseriate with pointed tips. In general, as ploidy level increased, there was an increase in stomata dimension and a decrease in SD. Diploid and triploid accessions were easily differentiated in relation to PD and QD, which makes it an indirect method for determining the va... Mostrar Tudo |
Palavras-Chave: |
Gigas effect; Leaf anatomy; Ploidy level. |
Thesaurus NAL: |
Forage grasses; Stomata. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02429naa a2200229 a 4500 001 2102725 005 2023-01-24 008 2018 bl uuuu u00u1 u #d 100 1 $aCHAVES, A. L. A. 245 $aEffect of polyploidy on the leaf epidermis structure of Cynodon dactylon (L.) Pers. (Poaceae).$h[electronic resource] 260 $c2018 520 $aAbstract Cynodon dactylon has different ploidy levels. The ?gigas effect? in morphoanatomic traits caused by the increase in the genetic material is poorly studied in the species. Thus, the present research aimed at carrying out a quantitative and descriptive study of the leaf epidermis structure in PI291169?04 (2n = 2× = 18); PI477004?26 (2n = 3× = 27); PI291721?22 (2n = 4× = 36); PI289750?10 (2n = 5× = 45) accessions, in order to investigate the consequences of the polyploidy. Adult leaves were fixed in FAA and the paradermal sections obtained through the scraping technique were stained in 5% safranin. The measurements of the stomata characteristics (polar diameters ? PD, equatorial diameters ? QD, stomatal density ? SD, stomatal functionality ? SF, and stomatal index ? SI) were taken by means of the software ImageJ. For analysis in scanning electron microscopy, leaf fragments were fixed in Karnovsky, dehydrated in an acetone series, subjected to a critical point and covered with gold. Stomata were classified as paracytic, dumbbell-shaped and partially covered by papillae. Tector trichomes were classified as uniseriate with pointed tips. In general, as ploidy level increased, there was an increase in stomata dimension and a decrease in SD. Diploid and triploid accessions were easily differentiated in relation to PD and QD, which makes it an indirect method for determining the variation in ploidy level. The variables SD and SI were not efficient to discriminate the accessions. Leaf epidermis has characteristics that emphasize the effect of polyploidization process and its analysis may be used to screening of genotypes in breeding programs. 650 $aForage grasses 650 $aStomata 653 $aGigas effect 653 $aLeaf anatomy 653 $aPloidy level 700 1 $aCHIAVEGATTO, R. B. 700 1 $aGAVILANES, M. L. 700 1 $aBENITES, F. R. G. 700 1 $aTECHIO, V. H. 773 $tBiologia$gv. 73, n. 10, p. 1007-1013, 2018.
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