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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
21/10/2019 |
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Data da última atualização: |
21/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ZORTÉA, K. E. M.; ROSSI, A. A. B.; BISPO, R. B.; ROCHA, V. D. da; HOOGERHEIDE, E. S. S. |
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Afiliação: |
KELLI ÉVELIN MÜLLER ZORTÉA, UNEMAT, Alta Floresta, MT; ANA APARECIDA BANDINI ROSSI, UNEMAT, Alta Floresta, MT; ROSIMEIRE BARBOZA BISPO, UENF, Campos dos Goytacazes, RJ; VINÍCIUS DELGADO DA ROCHA, UFV, Viçosa, MG; EULALIA SOLER SOBREIRA HOOGERHEIDE, CPAMT. |
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Título: |
Meiotic Behavior and Pollen Viability of Spondias mombin L.: native fruit species of the amazon. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Floresta e Ambiente, v. 26, n. 3, e20180375, 2019. |
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ISSN: |
2179-8087 |
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DOI: |
https://doi.org/10.1590/2179-8087.037518 |
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Idioma: |
Inglês |
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Conteúdo: |
Spondias mombin L. is a fruit species native to the Amazon with great marketing potential. The aim of this study was to examine the meiotic behavior and pollen viability of S. mombin. Flower buds at various developmental stages were collected for analyses of pollen viability, in vitro germination, and meiotic behavior. S. mombin is diploid with 2n = 2x = 30 chromosomes. Meiosis showed to be regular, with only 13.3% of cells with abnormal division. A high meiotic index was found: 96.5%. Pollen viability did not differ between male (96.3%) and bisexual (96.7%) flowers, and the overall mean of viable pollen was considered high (96.5%). Pollen germination occurred in all tested media, with the treatment containing 20% sucrose and 50 mg mL‒1 boric acid being the most suitable. The highest pollen germination means occurred after 36 h of incubation. The obtained information can be used in the planning and implementation of commercial crops of the species. |
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Palavras-Chave: |
Meiotic index; Pollen fertility. |
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Thesagro: |
Cajá. |
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Thesaurus Nal: |
Pollen germination. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/203283/1/2019-cpamt-eulalia-hoogerheide-meiotic-pollen-viability-native-fruit-amazon.pdf
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Marc: |
LEADER 01704naa a2200241 a 4500
001 2113337
005 2019-10-21
008 2019 bl uuuu u00u1 u #d
022 $a2179-8087
024 7 $ahttps://doi.org/10.1590/2179-8087.037518$2DOI
100 1 $aZORTÉA, K. E. M.
245 $aMeiotic Behavior and Pollen Viability of Spondias mombin L.$bnative fruit species of the amazon.$h[electronic resource]
260 $c2019
520 $aSpondias mombin L. is a fruit species native to the Amazon with great marketing potential. The aim of this study was to examine the meiotic behavior and pollen viability of S. mombin. Flower buds at various developmental stages were collected for analyses of pollen viability, in vitro germination, and meiotic behavior. S. mombin is diploid with 2n = 2x = 30 chromosomes. Meiosis showed to be regular, with only 13.3% of cells with abnormal division. A high meiotic index was found: 96.5%. Pollen viability did not differ between male (96.3%) and bisexual (96.7%) flowers, and the overall mean of viable pollen was considered high (96.5%). Pollen germination occurred in all tested media, with the treatment containing 20% sucrose and 50 mg mL‒1 boric acid being the most suitable. The highest pollen germination means occurred after 36 h of incubation. The obtained information can be used in the planning and implementation of commercial crops of the species.
650 $aPollen germination
650 $aCajá
653 $aMeiotic index
653 $aPollen fertility
700 1 $aROSSI, A. A. B.
700 1 $aBISPO, R. B.
700 1 $aROCHA, V. D. da
700 1 $aHOOGERHEIDE, E. S. S.
773 $tFloresta e Ambiente$gv. 26, n. 3, e20180375, 2019.
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Registro original: |
Embrapa Agrossilvipastoril (CPAMT) |
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Voltar
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
06/12/2011 |
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Data da última atualização: |
03/08/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
CONTE, O.; LEVIEN, R.; DEBIASI, H.; STURMER, S. L. K.; MAZURANA, M.; MULLER, J. |
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Afiliação: |
OSMAR CONTE, UFRGS; RENATO LEVIEN, UFRGS; HENRIQUE DEBIASI, CNPSO; SIDINEI LEANDRO KLOCKNER STURMER, UFRGS; MICHAEL MAZURANA, UFRGS; JÔNATAN MULLER, UFRGS. |
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Título: |
Soil disturbance index as an indicator of seed drill efficiency in no-tillage agrosystems. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Soil & Tillage Research, Amsterdam, v. 114, n. 1, p. 37-42, 2011. |
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DOI: |
http://dx.doi.org/10.1016/j.still.2011.03.007 |
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Idioma: |
Inglês |
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Conteúdo: |
In no-tillage agroecosystems, furrow openers prepare the seed line to place the seeds and fertilizers, and this event represents a unique opportunity to disturb the soil in this kind of crop system. Shanks are used to promote an appropriate soil physical condition, and, in case of soil compaction problems, shanks are used more frequently and at deeper layers of the soil profile. However, this deeper use causes greater draught and does not appropriately disturb the soil because narrow shanks have limited depth performance (critical depth). Here, we tested the operation of shanks in Oxisol and Alfisol. We assessed the shank performance 618 cm of depth, and we evaluated several soil disturbance parameters, such as area of groove, effective depth, and volume, as well as the demand of power force. Based on this evaluation, we calculated the specific power demand and the disturbance index, which is obtained from the ratio of disturbed area and maximum depth. With increasing depth of operation, the specific power demand increased in both soil types, while the disturbance index remaining approximately constant in the Oxisol and decreasing in the Alfisol. In the latter soil type, the shanks operated at more than 12 cm deep, and the lower disturbance index indicated a loss of efficiency in the soil disturbance. Therefore, the disturbance index is an efficient indicator of both the performance of seed drill shanks and the soil disturbance in no-till systems. |
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Thesagro: |
Solo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02079naa a2200205 a 4500
001 1908690
005 2017-08-03
008 2011 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.still.2011.03.007$2DOI
100 1 $aCONTE, O.
245 $aSoil disturbance index as an indicator of seed drill efficiency in no-tillage agrosystems.
260 $c2011
520 $aIn no-tillage agroecosystems, furrow openers prepare the seed line to place the seeds and fertilizers, and this event represents a unique opportunity to disturb the soil in this kind of crop system. Shanks are used to promote an appropriate soil physical condition, and, in case of soil compaction problems, shanks are used more frequently and at deeper layers of the soil profile. However, this deeper use causes greater draught and does not appropriately disturb the soil because narrow shanks have limited depth performance (critical depth). Here, we tested the operation of shanks in Oxisol and Alfisol. We assessed the shank performance 618 cm of depth, and we evaluated several soil disturbance parameters, such as area of groove, effective depth, and volume, as well as the demand of power force. Based on this evaluation, we calculated the specific power demand and the disturbance index, which is obtained from the ratio of disturbed area and maximum depth. With increasing depth of operation, the specific power demand increased in both soil types, while the disturbance index remaining approximately constant in the Oxisol and decreasing in the Alfisol. In the latter soil type, the shanks operated at more than 12 cm deep, and the lower disturbance index indicated a loss of efficiency in the soil disturbance. Therefore, the disturbance index is an efficient indicator of both the performance of seed drill shanks and the soil disturbance in no-till systems.
650 $aSolo
700 1 $aLEVIEN, R.
700 1 $aDEBIASI, H.
700 1 $aSTURMER, S. L. K.
700 1 $aMAZURANA, M.
700 1 $aMULLER, J.
773 $tSoil & Tillage Research, Amsterdam$gv. 114, n. 1, p. 37-42, 2011.
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Embrapa Soja (CNPSO) |
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