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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
15/12/1993 |
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Data da última atualização: |
15/12/1993 |
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Autoria: |
COELHO, Y. DA S.; MASCARANHAS, J. M. |
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Afiliação: |
EMBRAPA-CNPMF; Bolsista CNPq. |
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Título: |
Limao `Tahiti': inducao da queda de frutos com uso de Ethephon e ANA. |
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Ano de publicação: |
1990 |
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Fonte/Imprenta: |
Revista Brasileira de Fruticultura, v.12, n.2, p.33-39, Cruz das Almas, 1990 |
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ISBN: |
01002945 |
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Idioma: |
Português |
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Conteúdo: |
Os reguladores de crescimento Ethephon (acido 2-cloroetilfosfonico) e ANA (acido naftalenoacetico) foram aplicados apos o periodo de florescimento em limao `Tahiti' (Citrus latifolia Tanaka), enxertado emlimao `Cravo' (Citrus limonia Osbeck), com o objetivo de avaliar a eficienciadestes produtos como indutores de abscisao de frutos. As substancias e dosagens utilizadas foram: ethephon 250 ppm, ethephon 500 ppm, ethephon 250 ppm + oleo mineral 2%, ethephon 250 ppm + ureia 1%, ureia 2%, ANA 250 ppm e ANA 500 ppm. Os tratamentos com ethephon, isolados ou em associacao com ureia, foram os mais eficientes, induzidos uma queda, em media, de 95% dos frutos previamente marcados. |
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Palavras-Chave: |
Citrus latifolia flowering; Reguladores de crescimento. |
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Thesagro: |
Etileno; Floração. |
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Thesaurus Nal: |
Citrus latifolia; ethylene; growth regulators. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01340naa a2200229 a 4500
001 1632953
005 1993-12-15
008 1990 bl uuuu u00u1 u #d
022 $a01002945
100 1 $aCOELHO, Y. DA S.
245 $aLimao `Tahiti'$binducao da queda de frutos com uso de Ethephon e ANA.
260 $c1990
520 $aOs reguladores de crescimento Ethephon (acido 2-cloroetilfosfonico) e ANA (acido naftalenoacetico) foram aplicados apos o periodo de florescimento em limao `Tahiti' (Citrus latifolia Tanaka), enxertado emlimao `Cravo' (Citrus limonia Osbeck), com o objetivo de avaliar a eficienciadestes produtos como indutores de abscisao de frutos. As substancias e dosagens utilizadas foram: ethephon 250 ppm, ethephon 500 ppm, ethephon 250 ppm + oleo mineral 2%, ethephon 250 ppm + ureia 1%, ureia 2%, ANA 250 ppm e ANA 500 ppm. Os tratamentos com ethephon, isolados ou em associacao com ureia, foram os mais eficientes, induzidos uma queda, em media, de 95% dos frutos previamente marcados.
650 $aCitrus latifolia
650 $aethylene
650 $agrowth regulators
650 $aEtileno
650 $aFloração
653 $aCitrus latifolia flowering
653 $aReguladores de crescimento
700 1 $aMASCARANHAS, J. M.
773 $tRevista Brasileira de Fruticultura$gv.12, n.2, p.33-39, Cruz das Almas, 1990
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
22/02/2001 |
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Data da última atualização: |
01/09/2016 |
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Autoria: |
OLIVEIRA, A. L. M.; URQUIAGA, S.; DÖBEREINER, Johanna; BALDANI, J. I. |
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Título: |
The effect of inoculation of endophytic N2-fixing bacteria on micropropagated sugarcane plants. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Plant and Soil, Netherlands, v. 242, n. 2, p. 205-215, maio 2002. |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this work was to evaluate the effect of the inoculation of endophytic N2-fixing bacteria on the development of rnicropropagated sugarcane plants. The endophytic population of each inoculated species was monitored during the growth period, and biological nitrogen fixation (BNF) contribution of each inoculation treatment was assessed using the 15N-isotope dilution technique. Seven different combinations of inoculum were used, using five endophytic diazotrophic species (Gluconacetobacter diazotrophicus, Herbaspirillum seropedicae, Herbaspirillum rubrisubalbicans, Azospirillum amazonense and Burkhoilderia sp.), originally isolated from sugarcane plants. The results showed a clear physiological effect on the development of the inoculated plants, resulting in alteration of the dry matter-partitioning pattern and increase on root dry matter as compared to uninoculated plants. Indeed, all inoculated diazotrophic species could be reisolated in high numbers from the rhizomes of the inoculated plants, even 400 days after inoculation (DAI), suggesting the establishment of the inoculated bacteria. However, a negative effect of the mixture of all five species on the survival of plantlets was observed 45 days after inoculation, just after acclimatization. The analysis of the BNF contribution using the 15N-isotope dilution technique showed that inoculation promoted some increase in the BNF contribution to the plant tissues. The best treatment was the mixture of all five strains, followed by the treatment with a mixture of Herbaspirillum spp. The contribution was much lower when the plants were inoculated with a mixture of G. diazotrophicus with A. amazonense and Burkhoilderia sp. A BNF contribution around 30% of total nitrogen accumulated was observed in rnicropropagated plants inoculated with the mixture of strains, suggesting that the combination of species in the inocula is the best strategy to improve sugarcane crops dependent on the biological nitrogen fixation process. MenosThe aim of this work was to evaluate the effect of the inoculation of endophytic N2-fixing bacteria on the development of rnicropropagated sugarcane plants. The endophytic population of each inoculated species was monitored during the growth period, and biological nitrogen fixation (BNF) contribution of each inoculation treatment was assessed using the 15N-isotope dilution technique. Seven different combinations of inoculum were used, using five endophytic diazotrophic species (Gluconacetobacter diazotrophicus, Herbaspirillum seropedicae, Herbaspirillum rubrisubalbicans, Azospirillum amazonense and Burkhoilderia sp.), originally isolated from sugarcane plants. The results showed a clear physiological effect on the development of the inoculated plants, resulting in alteration of the dry matter-partitioning pattern and increase on root dry matter as compared to uninoculated plants. Indeed, all inoculated diazotrophic species could be reisolated in high numbers from the rhizomes of the inoculated plants, even 400 days after inoculation (DAI), suggesting the establishment of the inoculated bacteria. However, a negative effect of the mixture of all five species on the survival of plantlets was observed 45 days after inoculation, just after acclimatization. The analysis of the BNF contribution using the 15N-isotope dilution technique showed that inoculation promoted some increase in the BNF contribution to the plant tissues. The best treatment was the mixture of all five strains, ... Mostrar Tudo |
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Palavras-Chave: |
Bactéria endofítica; Biological nitrogen fixation; BNF; Cana-de-açúcar; Endophytic bacteria; FBN; Fixação biológica de nitrogênio; Plant inoculation; Plant-bacteria interactions. |
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Thesagro: |
Inoculação; Planta. |
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Thesaurus NAL: |
sugarcane. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02890naa a2200301 a 4500
001 1598467
005 2016-09-01
008 2002 bl --- 0-- u #d
100 1 $aOLIVEIRA, A. L. M.
245 $aThe effect of inoculation of endophytic N2-fixing bacteria on micropropagated sugarcane plants.
260 $c2002
520 $aThe aim of this work was to evaluate the effect of the inoculation of endophytic N2-fixing bacteria on the development of rnicropropagated sugarcane plants. The endophytic population of each inoculated species was monitored during the growth period, and biological nitrogen fixation (BNF) contribution of each inoculation treatment was assessed using the 15N-isotope dilution technique. Seven different combinations of inoculum were used, using five endophytic diazotrophic species (Gluconacetobacter diazotrophicus, Herbaspirillum seropedicae, Herbaspirillum rubrisubalbicans, Azospirillum amazonense and Burkhoilderia sp.), originally isolated from sugarcane plants. The results showed a clear physiological effect on the development of the inoculated plants, resulting in alteration of the dry matter-partitioning pattern and increase on root dry matter as compared to uninoculated plants. Indeed, all inoculated diazotrophic species could be reisolated in high numbers from the rhizomes of the inoculated plants, even 400 days after inoculation (DAI), suggesting the establishment of the inoculated bacteria. However, a negative effect of the mixture of all five species on the survival of plantlets was observed 45 days after inoculation, just after acclimatization. The analysis of the BNF contribution using the 15N-isotope dilution technique showed that inoculation promoted some increase in the BNF contribution to the plant tissues. The best treatment was the mixture of all five strains, followed by the treatment with a mixture of Herbaspirillum spp. The contribution was much lower when the plants were inoculated with a mixture of G. diazotrophicus with A. amazonense and Burkhoilderia sp. A BNF contribution around 30% of total nitrogen accumulated was observed in rnicropropagated plants inoculated with the mixture of strains, suggesting that the combination of species in the inocula is the best strategy to improve sugarcane crops dependent on the biological nitrogen fixation process.
650 $asugarcane
650 $aInoculação
650 $aPlanta
653 $aBactéria endofítica
653 $aBiological nitrogen fixation
653 $aBNF
653 $aCana-de-açúcar
653 $aEndophytic bacteria
653 $aFBN
653 $aFixação biológica de nitrogênio
653 $aPlant inoculation
653 $aPlant-bacteria interactions
700 1 $aURQUIAGA, S.
700 1 $aDÖBEREINER, Johanna
700 1 $aBALDANI, J. I.
773 $tPlant and Soil, Netherlands$gv. 242, n. 2, p. 205-215, maio 2002.
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