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Registro Completo |
Biblioteca(s): |
Embrapa Clima Temperado. |
Data corrente: |
10/06/2020 |
Data da última atualização: |
10/06/2020 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
SILVA, G. F. da; LIMA, A. D. V.; SOUZA, R. S. de; FARIAS, P. C. de M.; MARTINS, C. R. |
Afiliação: |
GUILHERME FERREIRA DA SILVA; ANTÔNIO DAVI VAZ LIMA; RAFAELA SCHMIDT DE SOUZA; PAULO CELSO DE MELLO FARIAS; CARLOS ROBERTO MARTINS, CPACT. |
Título: |
Desenvolvimento inicial de porta-enxertos de nogueira-pecã a campo e ambiente protegido em sistema orgânico. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
In: SIMPÓSIO SUL-AMERICANO DA NOZ-PECÃ, 2., 2019, Cachoeira do Sul. Anais. Brasília, DF: Embrapa, 2019. 119 p. Carlos Roberto Martins, Editor técnico (CPACT). p. 35-37. |
Idioma: |
Português |
Conteúdo: |
O objetivo deste trabalho foi avaliar o desenvolvimento inicial de porta-enxertos de nogueira-pecã da cultivar Barton produzidas a campo, no sistema de raiz nua e em ambiente protegido, no sistema de raiz coberta sob sistema de produção orgânico. |
Thesagro: |
Noz Peca; Porta Enxerto. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/213888/1/artigo-porta-enxertos-Noz-peca.pdf
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Marc: |
LEADER 00951nam a2200181 a 4500 001 2123197 005 2020-06-10 008 2019 bl uuuu u00u1 u #d 100 1 $aSILVA, G. F. da 245 $aDesenvolvimento inicial de porta-enxertos de nogueira-pecã a campo e ambiente protegido em sistema orgânico.$h[electronic resource] 260 $aIn: SIMPÓSIO SUL-AMERICANO DA NOZ-PECÃ, 2., 2019, Cachoeira do Sul. Anais. Brasília, DF: Embrapa, 2019. 119 p. Carlos Roberto Martins, Editor técnico (CPACT). p. 35-37.$c2019 520 $aO objetivo deste trabalho foi avaliar o desenvolvimento inicial de porta-enxertos de nogueira-pecã da cultivar Barton produzidas a campo, no sistema de raiz nua e em ambiente protegido, no sistema de raiz coberta sob sistema de produção orgânico. 650 $aNoz Peca 650 $aPorta Enxerto 700 1 $aLIMA, A. D. V. 700 1 $aSOUZA, R. S. de 700 1 $aFARIAS, P. C. de M. 700 1 $aMARTINS, C. R.
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Embrapa Clima Temperado (CPACT) |
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Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
25/10/2018 |
Data da última atualização: |
24/01/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
SILVA, D. M.; SANTOS, Y. D.; BENITES, F. R. G.; TECHIO, V. H. |
Afiliação: |
Dayanne Medrado Silva, UFLA; Yasmim Dutra Santos, UFLA; FLAVIO RODRIGO GANDOLFI BENITES, CNPGL; Vania Helena Techio, UFLA. |
Título: |
Microsporogenesis, viability and morphology of pollen grain in accessions of Cynodon L. C. Rich. (Poaceae). |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
South African Journal of Botany, v. 118, p. 260-267, 2018. |
Idioma: |
Inglês |
Conteúdo: |
Plants of the genus Cynodon were considered as weed for a long period. However, this scenario has changed when it was observed that many species could be used in forage farming and for the recovery of degraded areas. Due to the high expansive potential, Cynodon spp. became an option for producers and aroused interest for breeding programs, besides requiring further studies on genetic and cytogenetic variability. Research onmeiosis in Cynodon are scarce since the inflorescences are small and the standardization of the stages of spikelet collections is difficult. The aimof the present studywas to evaluate the microsporogenesis, viability andmorphology of the pollen grains of two accessions of Cynodon dactylon var. dactylon (L.) Pers. (2n=4x=36, bermudagrass) and two accessions of Cynodon nlemfuensis var. nlemfuensis Vanderyst (2n=2x=18, stargrass). The slideswere prepared by squash technique and stained with 2% carmine propionic. For the viability analyses of pollen grains, 2% propionic carmine and Alexander's stain were used. The measurements and the morphology of the pollen grains were defined from analyses with the acetolysis technique and scanning electron microscopy. The meiosis of the four accessions/species was regular. The staining tests showed variations in the viability rate of the pollen grain between the diploid and tetraploid species, being higher among the tetraploids. The pollen grainsmeasured 21.1 and 28.8 μmon average for both species andwere classified as oblate spheroidal,monocolpates and showed no ornamentation, such as spicules and other attachments with non-roughened, micro reticulated exine. MenosPlants of the genus Cynodon were considered as weed for a long period. However, this scenario has changed when it was observed that many species could be used in forage farming and for the recovery of degraded areas. Due to the high expansive potential, Cynodon spp. became an option for producers and aroused interest for breeding programs, besides requiring further studies on genetic and cytogenetic variability. Research onmeiosis in Cynodon are scarce since the inflorescences are small and the standardization of the stages of spikelet collections is difficult. The aimof the present studywas to evaluate the microsporogenesis, viability andmorphology of the pollen grains of two accessions of Cynodon dactylon var. dactylon (L.) Pers. (2n=4x=36, bermudagrass) and two accessions of Cynodon nlemfuensis var. nlemfuensis Vanderyst (2n=2x=18, stargrass). The slideswere prepared by squash technique and stained with 2% carmine propionic. For the viability analyses of pollen grains, 2% propionic carmine and Alexander's stain were used. The measurements and the morphology of the pollen grains were defined from analyses with the acetolysis technique and scanning electron microscopy. The meiosis of the four accessions/species was regular. The staining tests showed variations in the viability rate of the pollen grain between the diploid and tetraploid species, being higher among the tetraploids. The pollen grainsmeasured 21.1 and 28.8 μmon average for both species andwere classified a... Mostrar Tudo |
Palavras-Chave: |
Bermuda grass; Pollen grain; Star grass. |
Thesaurus NAL: |
Forage grasses; Meiosis. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02290naa a2200217 a 4500 001 2098248 005 2023-01-24 008 2018 bl uuuu u00u1 u #d 100 1 $aSILVA, D. M. 245 $aMicrosporogenesis, viability and morphology of pollen grain in accessions of Cynodon L. C. Rich. (Poaceae).$h[electronic resource] 260 $c2018 520 $aPlants of the genus Cynodon were considered as weed for a long period. However, this scenario has changed when it was observed that many species could be used in forage farming and for the recovery of degraded areas. Due to the high expansive potential, Cynodon spp. became an option for producers and aroused interest for breeding programs, besides requiring further studies on genetic and cytogenetic variability. Research onmeiosis in Cynodon are scarce since the inflorescences are small and the standardization of the stages of spikelet collections is difficult. The aimof the present studywas to evaluate the microsporogenesis, viability andmorphology of the pollen grains of two accessions of Cynodon dactylon var. dactylon (L.) Pers. (2n=4x=36, bermudagrass) and two accessions of Cynodon nlemfuensis var. nlemfuensis Vanderyst (2n=2x=18, stargrass). The slideswere prepared by squash technique and stained with 2% carmine propionic. For the viability analyses of pollen grains, 2% propionic carmine and Alexander's stain were used. The measurements and the morphology of the pollen grains were defined from analyses with the acetolysis technique and scanning electron microscopy. The meiosis of the four accessions/species was regular. The staining tests showed variations in the viability rate of the pollen grain between the diploid and tetraploid species, being higher among the tetraploids. The pollen grainsmeasured 21.1 and 28.8 μmon average for both species andwere classified as oblate spheroidal,monocolpates and showed no ornamentation, such as spicules and other attachments with non-roughened, micro reticulated exine. 650 $aForage grasses 650 $aMeiosis 653 $aBermuda grass 653 $aPollen grain 653 $aStar grass 700 1 $aSANTOS, Y. D. 700 1 $aBENITES, F. R. G. 700 1 $aTECHIO, V. H. 773 $tSouth African Journal of Botany$gv. 118, p. 260-267, 2018.
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