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Biblioteca(s): |
Biblioteca Rui Tendinha. |
Data corrente: |
09/01/2015 |
Data da última atualização: |
09/01/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
BREGONCI, I. dos S.; SCHIMILDT, E. R.; COELHO, R. I.; REIS, E. F. dos.; BRUM, V. J.; SANTOS, J. G. dos. |
Afiliação: |
Izaias dos Santos Bregonci, Incaper; Edilson Romais Schmildt; Ruimário Inácio Coelho; Edvaldo Fialho dos Reis; Vitor José Brum; Juliano Gonçalves dos Santos. |
Título: |
Adubação foliar com macro e micronutrientes no crescimento de mudas micropropagadas do abacaxizeiro cv. Gold [Ananas comosus (L.) Merrill] em diferentes recipientes. |
Título original: |
Foliar fertilization with macro and micronutrients in the growth of plantlets micropropagated of pineapple cv. Gold [Ananas comosus (L.) Merrill] in different containers. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
Ciência e Agrotecnologia, Lavras , v. 32, n. 3, 2008. |
DOI: |
http://dx.doi.org/10.1590/S1413-70542008000300001 |
Idioma: |
Português |
Conteúdo: |
Objetivou-se com este trabalho avaliar o efeito da adubação foliar com macro e micronutrientes no crescimento das mudas micropropagadas do abacaxizeiro cv. Gold [Ananas comosus (L.) Merrill], em diferentes recipientes. O experimento foi em esquema fatorial 8x3, adubação foliar em 8 níveis e recipientes em 3 níveis, através de um delineamento inteiramente casualizado com 5 repetições. As mudas foram padronizadas com altura média de 7,12 cm. As adubações foliares foram feitas com uréia, cloreto de potássio, ácido bórico, um formulado comercial com macro e micronutrientes e testemunha (pulverização com água) e os recipientes: bandeja de isopor com 200 células; tubete pequeno de 115 cm3; e tubete grande com 300 cm3. O substrato utilizado foi o plantmax hortaliças®. Avaliaram-se as características área foliar, altura de planta e massa seca da parte aérea e da raiz, aos 140 dias do transplantio. Os adubos foliares proporcionaram maior crescimento em área foliar, altura e massa seca da parte aérea às mudas do abacaxizeiro, embora com resultados diferentes. Os adubos foliares não aumentaram a massa seca do sistema radicular. A bandeja de isopor apresentou as menores médias, com todos os adubos foliares para área foliar, altura e massa seca da parte aérea das mudas do abacaxizeiro. O tubete pequeno e o tubete grande apresentaram resultados semelhantes com a maioria dos adubos foliares utilizados.
The objective of this work was to evaluate the effect of the foliar fertilization with macro and micronutrients on the growth of the plantlets micropropagated of pineapple cv. Gold [Ananas comosus (L.) Merrill] in different containers. The experiment was mounted in factorial arrangement 8x3, with foliar fertilization in 8 levels and containers in 3 levels, through a completely randomized design with five repetitions. The plantlets were standardized with average height of 7,12 cm. The foliar fertilization was used in the urea, potassium chloride, boric acid, a commercial formulated with macro and micronutrients and witness (pulverization with water) and the containers were: polystyrene tray with 200 cells; small tubete with 115 cm3; and big tubete with 300 cm3. The substratum used for all the containers was the plantmax hortaliças®. The foliar area characteristics, plant height and dry mass of the aerial part and of the root at 140 days after planting were evaluated. All the foliar fertilizers, in all used containers, provided larger growth in foliar area, height and dry mass of the aerial part to the plantlets of the pineapple, however with different results. The foliar fertilizers do not increase the dry mass of the radicular system. The container polystyrene tray presents the smallest averages for foliar area, height and dry mass of the aerial part of the plantlets of the pineapple with all the foliar fertilizer. The containers small tubete and big tubete present similar results in all levels of foliar fertilizers. MenosObjetivou-se com este trabalho avaliar o efeito da adubação foliar com macro e micronutrientes no crescimento das mudas micropropagadas do abacaxizeiro cv. Gold [Ananas comosus (L.) Merrill], em diferentes recipientes. O experimento foi em esquema fatorial 8x3, adubação foliar em 8 níveis e recipientes em 3 níveis, através de um delineamento inteiramente casualizado com 5 repetições. As mudas foram padronizadas com altura média de 7,12 cm. As adubações foliares foram feitas com uréia, cloreto de potássio, ácido bórico, um formulado comercial com macro e micronutrientes e testemunha (pulverização com água) e os recipientes: bandeja de isopor com 200 células; tubete pequeno de 115 cm3; e tubete grande com 300 cm3. O substrato utilizado foi o plantmax hortaliças®. Avaliaram-se as características área foliar, altura de planta e massa seca da parte aérea e da raiz, aos 140 dias do transplantio. Os adubos foliares proporcionaram maior crescimento em área foliar, altura e massa seca da parte aérea às mudas do abacaxizeiro, embora com resultados diferentes. Os adubos foliares não aumentaram a massa seca do sistema radicular. A bandeja de isopor apresentou as menores médias, com todos os adubos foliares para área foliar, altura e massa seca da parte aérea das mudas do abacaxizeiro. O tubete pequeno e o tubete grande apresentaram resultados semelhantes com a maioria dos adubos foliares utilizados.
The objective of this work was to evaluate the effect of the foliar fertilization with m... Mostrar Tudo |
Palavras-Chave: |
Abacaxi; Ananas; Fertilização; Micropropagação. |
Thesaurus NAL: |
Fertilization; Micropropagation; Pineapple. |
Categoria do assunto: |
-- |
URL: |
http://biblioteca.incaper.es.gov.br/digital/bitstream/item/496/1/Izaias-abacaxi-Artigo-adub-foliar-2008-IZAIAS.pdf
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Marc: |
LEADER 04079naa a2200289 a 4500 001 1004851 005 2015-01-09 008 2008 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.1590/S1413-70542008000300001$2DOI 100 1 $aBREGONCI, I. dos S. 240 $aFoliar fertilization with macro and micronutrients in the growth of plantlets micropropagated of pineapple cv. Gold [Ananas comosus (L.) Merrill] in different containers. 245 $aAdubação foliar com macro e micronutrientes no crescimento de mudas micropropagadas do abacaxizeiro cv. Gold [Ananas comosus (L.) Merrill] em diferentes recipientes.$h[electronic resource] 260 $c2008 520 $aObjetivou-se com este trabalho avaliar o efeito da adubação foliar com macro e micronutrientes no crescimento das mudas micropropagadas do abacaxizeiro cv. Gold [Ananas comosus (L.) Merrill], em diferentes recipientes. O experimento foi em esquema fatorial 8x3, adubação foliar em 8 níveis e recipientes em 3 níveis, através de um delineamento inteiramente casualizado com 5 repetições. As mudas foram padronizadas com altura média de 7,12 cm. As adubações foliares foram feitas com uréia, cloreto de potássio, ácido bórico, um formulado comercial com macro e micronutrientes e testemunha (pulverização com água) e os recipientes: bandeja de isopor com 200 células; tubete pequeno de 115 cm3; e tubete grande com 300 cm3. O substrato utilizado foi o plantmax hortaliças®. Avaliaram-se as características área foliar, altura de planta e massa seca da parte aérea e da raiz, aos 140 dias do transplantio. Os adubos foliares proporcionaram maior crescimento em área foliar, altura e massa seca da parte aérea às mudas do abacaxizeiro, embora com resultados diferentes. Os adubos foliares não aumentaram a massa seca do sistema radicular. A bandeja de isopor apresentou as menores médias, com todos os adubos foliares para área foliar, altura e massa seca da parte aérea das mudas do abacaxizeiro. O tubete pequeno e o tubete grande apresentaram resultados semelhantes com a maioria dos adubos foliares utilizados. The objective of this work was to evaluate the effect of the foliar fertilization with macro and micronutrients on the growth of the plantlets micropropagated of pineapple cv. Gold [Ananas comosus (L.) Merrill] in different containers. The experiment was mounted in factorial arrangement 8x3, with foliar fertilization in 8 levels and containers in 3 levels, through a completely randomized design with five repetitions. The plantlets were standardized with average height of 7,12 cm. The foliar fertilization was used in the urea, potassium chloride, boric acid, a commercial formulated with macro and micronutrients and witness (pulverization with water) and the containers were: polystyrene tray with 200 cells; small tubete with 115 cm3; and big tubete with 300 cm3. The substratum used for all the containers was the plantmax hortaliças®. The foliar area characteristics, plant height and dry mass of the aerial part and of the root at 140 days after planting were evaluated. All the foliar fertilizers, in all used containers, provided larger growth in foliar area, height and dry mass of the aerial part to the plantlets of the pineapple, however with different results. The foliar fertilizers do not increase the dry mass of the radicular system. The container polystyrene tray presents the smallest averages for foliar area, height and dry mass of the aerial part of the plantlets of the pineapple with all the foliar fertilizer. The containers small tubete and big tubete present similar results in all levels of foliar fertilizers. 650 $aFertilization 650 $aMicropropagation 650 $aPineapple 653 $aAbacaxi 653 $aAnanas 653 $aFertilização 653 $aMicropropagação 700 1 $aSCHIMILDT, E. R. 700 1 $aCOELHO, R. I. 700 1 $aREIS, E. F. dos. 700 1 $aBRUM, V. J. 700 1 $aSANTOS, J. G. dos. 773 $tCiência e Agrotecnologia, Lavras$gv. 32, n. 3, 2008.
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Biblioteca Rui Tendinha (BRT) |
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Registro Completo |
Biblioteca(s): |
Biblioteca Rui Tendinha. |
Data corrente: |
19/01/2015 |
Data da última atualização: |
19/01/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 2 |
Autoria: |
VIEIRA, N. G.; CARNEIRO, F. A.; SUJII, P. S.; ALEKCEVETCH, J. C.; FREIRE, L. P.; VINECKY, F.; ELBELT, S.; SILVA, V. A.; MATTA, F. M. da; FERRÃO, M. A. G.; MARRACCINI, P.; ANDRADE, A. C. |
Afiliação: |
Maria Amélia Gava Ferrão, Incaper/Embrapa Café. |
Título: |
Different molecular mechanisms account for drought tolerance in Coffea canephora var. Conilon. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
Tropical Plant Biology v. 6, p. 181-190, 2013. |
DOI: |
DOI 10.1007/s12042-013-9126-0 |
Idioma: |
Inglês |
Conteúdo: |
The effects of water deficit on photochemical parameters and expression of several candidate genes were investigated in drought-tolerant clone 73 of Coffea canephora submitted to slowly imposed water limitation. Under irrigation, this clone showed low values of stomatal conductance (g s ) and of CO2 assimilation rates (A) suggesting that it had a great efficiency in controlling stomatal closure and transpiration. After water withdrawal, this clone reached a ?3.0 MPa after 15 days without irrigation and showed a slow decrease in the pre-dawn leaf water potential. Under drought, the suppression of A was accompanied by maintenance of photochemical quenching (q P) and internal to ambient CO2 concentration (Ci/Ca) ratios as well as by a decrease of non-photochemical quenching (q N). This is confirmed by the transport rate/CO2 assimilation (ETR/A) rates that suggested the participation of an alternative electron sink protecting the photosynthetic apparatus against photoinhibition. At the transcriptomic level, high up-regulation of genes encoding for a dehydrin (CcDH3), an ascorbate peroxidase (CcAPX1), a prephenate-dehydrogenase like protein (CcPDH1) and a non-symbiotic haemoglobin (CcNSH1) was also observed upon drought suggesting a strong induction of antioxidant and osmoprotection systems in this clone. High expression levels of gene-encoding ABA receptors (CcPYL3 and CcPYL7) under water limitation were also observed suggesting the involvement of the ABA signaling pathway in response to drought. All these results where compared to those previously obtained for drought-tolerant clones 14 and 120. Our results demonstrated the existence of different mechanisms amongst the drought-tolerant coffee clones regarding water deficit. MenosThe effects of water deficit on photochemical parameters and expression of several candidate genes were investigated in drought-tolerant clone 73 of Coffea canephora submitted to slowly imposed water limitation. Under irrigation, this clone showed low values of stomatal conductance (g s ) and of CO2 assimilation rates (A) suggesting that it had a great efficiency in controlling stomatal closure and transpiration. After water withdrawal, this clone reached a ?3.0 MPa after 15 days without irrigation and showed a slow decrease in the pre-dawn leaf water potential. Under drought, the suppression of A was accompanied by maintenance of photochemical quenching (q P) and internal to ambient CO2 concentration (Ci/Ca) ratios as well as by a decrease of non-photochemical quenching (q N). This is confirmed by the transport rate/CO2 assimilation (ETR/A) rates that suggested the participation of an alternative electron sink protecting the photosynthetic apparatus against photoinhibition. At the transcriptomic level, high up-regulation of genes encoding for a dehydrin (CcDH3), an ascorbate peroxidase (CcAPX1), a prephenate-dehydrogenase like protein (CcPDH1) and a non-symbiotic haemoglobin (CcNSH1) was also observed upon drought suggesting a strong induction of antioxidant and osmoprotection systems in this clone. High expression levels of gene-encoding ABA receptors (CcPYL3 and CcPYL7) under water limitation were also observed suggesting the involvement of the ABA signaling pathway in re... Mostrar Tudo |
Palavras-Chave: |
Candidate gene; Coffea canephora; Drought; Gene expression; Real-time quantitative PCR; Water potential. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02676nam a2200325 a 4500 001 1004981 005 2015-01-19 008 2013 bl uuuu u0uu1 u #d 024 7 $aDOI 10.1007/s12042-013-9126-0$2DOI 100 1 $aVIEIRA, N. G. 245 $aDifferent molecular mechanisms account for drought tolerance in Coffea canephora var. Conilon. 260 $aTropical Plant Biology v. 6, p. 181-190$c2013 520 $aThe effects of water deficit on photochemical parameters and expression of several candidate genes were investigated in drought-tolerant clone 73 of Coffea canephora submitted to slowly imposed water limitation. Under irrigation, this clone showed low values of stomatal conductance (g s ) and of CO2 assimilation rates (A) suggesting that it had a great efficiency in controlling stomatal closure and transpiration. After water withdrawal, this clone reached a ?3.0 MPa after 15 days without irrigation and showed a slow decrease in the pre-dawn leaf water potential. Under drought, the suppression of A was accompanied by maintenance of photochemical quenching (q P) and internal to ambient CO2 concentration (Ci/Ca) ratios as well as by a decrease of non-photochemical quenching (q N). This is confirmed by the transport rate/CO2 assimilation (ETR/A) rates that suggested the participation of an alternative electron sink protecting the photosynthetic apparatus against photoinhibition. At the transcriptomic level, high up-regulation of genes encoding for a dehydrin (CcDH3), an ascorbate peroxidase (CcAPX1), a prephenate-dehydrogenase like protein (CcPDH1) and a non-symbiotic haemoglobin (CcNSH1) was also observed upon drought suggesting a strong induction of antioxidant and osmoprotection systems in this clone. High expression levels of gene-encoding ABA receptors (CcPYL3 and CcPYL7) under water limitation were also observed suggesting the involvement of the ABA signaling pathway in response to drought. All these results where compared to those previously obtained for drought-tolerant clones 14 and 120. Our results demonstrated the existence of different mechanisms amongst the drought-tolerant coffee clones regarding water deficit. 653 $aCandidate gene 653 $aCoffea canephora 653 $aDrought 653 $aGene expression 653 $aReal-time quantitative PCR 653 $aWater potential 700 1 $aCARNEIRO, F. A. 700 1 $aSUJII, P. S. 700 1 $aALEKCEVETCH, J. C. 700 1 $aFREIRE, L. P. 700 1 $aVINECKY, F. 700 1 $aELBELT, S. 700 1 $aSILVA, V. A. 700 1 $aMATTA, F. M. da 700 1 $aFERRÃO, M. A. G. 700 1 $aMARRACCINI, P. 700 1 $aANDRADE, A. C.
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