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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
27/11/1996 |
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Data da última atualização: |
27/12/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CONCEIÇÃO, H. E. O. da. |
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Afiliação: |
EMBRAPA-CNPSD. |
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Título: |
Evaluation of Hevea clones subjected to water deficits. |
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Ano de publicação: |
1986 |
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Fonte/Imprenta: |
In: INTERNATIONAL RUBBER CONFERENCE, 1985, Kuala Lumpur. Procedings. Kuala Lumpur: RRIM, 1986. |
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Páginas: |
p. 1-14. |
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Idioma: |
Inglês |
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Conteúdo: |
Six clones of Hevea were subjected to both continuous and cyclic dehydration treatments in order to evaluate their response with respect to photosynthesis, transpiration and stomatal resistance, to plant water status. The trials were carried out on young Hevea plants at eighty-five days after the stumps were transplanted in a greenhouse. The increasing soil dehydration influenced the clones differently by reducing the leaf water potential, transpiration and photosynthesis: and increasing the stomatal resistance. In some clones the cyclic soil dehydrationcaused significant reduction in the level of recovery of the transpiration rates and net photosynthesis up to the first and second water deficit cycle, respectively. For all clones, the leaf water potential decreased with the deficit cycles: and 48 h after re-irrigation the mean values of the pre-stress condition were fully recovered. The stomatal resistance increased with the cyclic water deficits. After re-irrigation a differential recovery of this parameter was observed. Consideringthe variables studied as a whole, clones IAN 3087 and IAN 6323 were less influenced by the imposed drought conditions, while FX 3899 was more sensitive. |
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Palavras-Chave: |
Amazonas; Brasil; Manaus; Rubber tree. |
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Thesagro: |
Deficiência Hídrica; Espécie; Hevea; Seringueira. |
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Thesaurus Nal: |
soil water deficit. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/179174/1/Fol-3578.pdf
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Marc: |
LEADER 01836nam a2200229 a 4500
001 1665127
005 2018-12-27
008 1986 bl uuuu u00u1 u #d
100 1 $aCONCEIÇÃO, H. E. O. da
245 $aEvaluation of Hevea clones subjected to water deficits.
260 $aIn: INTERNATIONAL RUBBER CONFERENCE, 1985, Kuala Lumpur. Procedings. Kuala Lumpur: RRIM$c1986
300 $ap. 1-14.
520 $aSix clones of Hevea were subjected to both continuous and cyclic dehydration treatments in order to evaluate their response with respect to photosynthesis, transpiration and stomatal resistance, to plant water status. The trials were carried out on young Hevea plants at eighty-five days after the stumps were transplanted in a greenhouse. The increasing soil dehydration influenced the clones differently by reducing the leaf water potential, transpiration and photosynthesis: and increasing the stomatal resistance. In some clones the cyclic soil dehydrationcaused significant reduction in the level of recovery of the transpiration rates and net photosynthesis up to the first and second water deficit cycle, respectively. For all clones, the leaf water potential decreased with the deficit cycles: and 48 h after re-irrigation the mean values of the pre-stress condition were fully recovered. The stomatal resistance increased with the cyclic water deficits. After re-irrigation a differential recovery of this parameter was observed. Consideringthe variables studied as a whole, clones IAN 3087 and IAN 6323 were less influenced by the imposed drought conditions, while FX 3899 was more sensitive.
650 $asoil water deficit
650 $aDeficiência Hídrica
650 $aEspécie
650 $aHevea
650 $aSeringueira
653 $aAmazonas
653 $aBrasil
653 $aManaus
653 $aRubber tree
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
27/08/2009 |
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Data da última atualização: |
29/06/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 4 |
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Autoria: |
BINELLI, M.; MACHADO, R.; BERGAMASCHI, M. A. C. M. |
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Afiliação: |
UNESP/DRACENA; RUI MACHADO, CPPSE; MARCO AURELIO C MEIRA BERGAMASCHI, CPPSE. |
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Título: |
Manipulation of ovarian and uterine function to increase conception rates in cattle. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Animal Reproduction, v. 6, p. 125-134, 2009 |
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Idioma: |
Português |
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Conteúdo: |
In cattle, embryonic and fetal losses are the major causes of reproductive failureo Losses associated with failure in the process of maternal recognition of pregnancy can amount to as much as 30%0 Successful establishment of pregnancy depends on a delicate balance between luteolytic mechanisms inherent to the endometrium at the end of diestrus and antiluteolytic mechanisms, orchestrated by the conceptus to change endometrial function and, ultimately, block luteolysis. Antiluteolytic strategies are pharmacological, mechanical, nutritional and management manipulations of the process of maternal recognition of pregnancy that aim to increase the probability of successful gestations. Objective of the present paper is to review the recent literature on antiluteolytic strategies in cattle. Specifically, we focused on strategies to stimulate production of progesterone, strategies to reduce production of estradiol and other sttategies. Future directions for research in this area are proposedo. |
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Palavras-Chave: |
Antiluteolytic strategeis; Conception rates. |
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Thesagro: |
Gado de corte. |
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Thesaurus NAL: |
cattle. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPPSE-2009-09/18629/1/PROCIRM2009.00081.pdf
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Marc: |
LEADER 01568naa a2200193 a 4500
001 1257334
005 2023-06-29
008 2009 bl uuuu u00u1 u #d
100 1 $aBINELLI, M.
245 $aManipulation of ovarian and uterine function to increase conception rates in cattle.$h[electronic resource]
260 $c2009
520 $aIn cattle, embryonic and fetal losses are the major causes of reproductive failureo Losses associated with failure in the process of maternal recognition of pregnancy can amount to as much as 30%0 Successful establishment of pregnancy depends on a delicate balance between luteolytic mechanisms inherent to the endometrium at the end of diestrus and antiluteolytic mechanisms, orchestrated by the conceptus to change endometrial function and, ultimately, block luteolysis. Antiluteolytic strategies are pharmacological, mechanical, nutritional and management manipulations of the process of maternal recognition of pregnancy that aim to increase the probability of successful gestations. Objective of the present paper is to review the recent literature on antiluteolytic strategies in cattle. Specifically, we focused on strategies to stimulate production of progesterone, strategies to reduce production of estradiol and other sttategies. Future directions for research in this area are proposedo.
650 $acattle
650 $aGado de corte
653 $aAntiluteolytic strategeis
653 $aConception rates
700 1 $aMACHADO, R.
700 1 $aBERGAMASCHI, M. A. C. M.
773 $tAnimal Reproduction$gv. 6, p. 125-134, 2009
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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