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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
17/05/2012 |
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Data da última atualização: |
20/02/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CARDOSO, F. C.; MARQUES, R.; BOTOSSO, P. C.; MARQUES, M. C. M. |
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Afiliação: |
FERNANDA C. CARDOSO, UFPR; RENATO MARQUES, UFPR; PAULO CESAR BOTOSSO, CNPF; M. C. M. Marques, UFPR. |
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Título: |
Stem growth and phenology of two tropical trees in contrasting soil conditions. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Plant and Soil, n. 354, p. 269-281, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
Background and aims Phenological variations in tropical forests are usually explained by climate. Nevertheless, considering that soil water availability and nutrient content also influence plant water status and metabolism, soil conditions may also be important in the regulation of plant reproductive and vegetative activities over time.We investigated whether phenological patterns and stem growth differ in trees growing in two types of soil that display contrasting water and nutrient availability, namely, Gleysol (moist and nutrient-poor) and Cambisol (drier and nutrient rich). Methods Phenological observations (flushing, leaf fall, flowering and fruiting) and stem diameter growth were recorded for 120 trees fitted with fixed dendrometer bands, at 15 days intervals, for 1 year. Two species of contrasting deciduousness were investigated: Senna multijuga (semi-deciduous) and Citharexylum myrianthum (deciduous). Results Both species were seasonal in all phenophases, regardless of soil type. However, frequency, mean date and intensity of phenophases varied according to soil type. Girth increment of C. myrianthum was four times greater in Cambisol than in Gleysol, whereas the type of soil had no significant effect on that of S. multijuga. Conclusions These results show that soil characteristics also play an important role in determining phenological patterns and growth and must be considered when analysing phenological patterns in tropical forests. |
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Palavras-Chave: |
Citharexylum myrianthum; Floresta sazonal; Ritmo sazonal; Senna multijuga. |
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Thesagro: |
Crescimento; Diâmetro; Nutriente; Solo. |
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Categoria do assunto: |
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Marc: |
LEADER 02164naa a2200253 a 4500
001 1924782
005 2015-02-20
008 2012 bl uuuu u00u1 u #d
100 1 $aCARDOSO, F. C.
245 $aStem growth and phenology of two tropical trees in contrasting soil conditions.$h[electronic resource]
260 $c2012
520 $aBackground and aims Phenological variations in tropical forests are usually explained by climate. Nevertheless, considering that soil water availability and nutrient content also influence plant water status and metabolism, soil conditions may also be important in the regulation of plant reproductive and vegetative activities over time.We investigated whether phenological patterns and stem growth differ in trees growing in two types of soil that display contrasting water and nutrient availability, namely, Gleysol (moist and nutrient-poor) and Cambisol (drier and nutrient rich). Methods Phenological observations (flushing, leaf fall, flowering and fruiting) and stem diameter growth were recorded for 120 trees fitted with fixed dendrometer bands, at 15 days intervals, for 1 year. Two species of contrasting deciduousness were investigated: Senna multijuga (semi-deciduous) and Citharexylum myrianthum (deciduous). Results Both species were seasonal in all phenophases, regardless of soil type. However, frequency, mean date and intensity of phenophases varied according to soil type. Girth increment of C. myrianthum was four times greater in Cambisol than in Gleysol, whereas the type of soil had no significant effect on that of S. multijuga. Conclusions These results show that soil characteristics also play an important role in determining phenological patterns and growth and must be considered when analysing phenological patterns in tropical forests.
650 $aCrescimento
650 $aDiâmetro
650 $aNutriente
650 $aSolo
653 $aCitharexylum myrianthum
653 $aFloresta sazonal
653 $aRitmo sazonal
653 $aSenna multijuga
700 1 $aMARQUES, R.
700 1 $aBOTOSSO, P. C.
700 1 $aMARQUES, M. C. M.
773 $tPlant and Soil$gn. 354, p. 269-281, 2012.
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Embrapa Florestas (CNPF) |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
15/07/2009 |
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Data da última atualização: |
07/06/2018 |
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Autoria: |
BONA, C. M. de; GOULD, J. H.; MILLER JUNIOR, J. C.; STELLY, D.; LOUZADA, E. S. |
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Afiliação: |
Claudine Maria de Bona, Instituto Agronômico do Paraná; Jean Howe Gould, Texas A&M University - TAMU/Department of Ecosystem Science and Management; J. Creighton Miller Jr, TAMU/Department of Horticultural Sciences, College Station Texas; David Stelly, TAMU/Department of Soil & Crop Sciences, College Station; Eliezer Silva Louzada, Texas A&M University?Kingsville. |
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Título: |
Citrus asymmetric somatic hybrids produced via fusion of gamma-irradiated and iodoacetamide-treated protoplasts. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 44, n. 5, p. 454-462, maio 2009 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Híbridos somáticos assimétricos de citros produzidos pela fusão de protoplastos irradiados e tratados com iodoacetamida. |
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Conteúdo: |
The objective of this study was to produce citrus somatic asymmetric hybrids by fusing gamma-irradiated protoplasts with iodoacetamide-treated protoplasts. Protoplasts were isolated from embryogenic suspension cells of grapefruit (Citrus paradisi Macfad.) cultivars Ruby Red and Flame, sweet oranges (C. sinensis Osbeck) 'Itaboraí', 'Natal', Valencia', and 'Succari', from 'Satsuma' (C. unshiu Marcow.) and 'Changsha' mandarin (C. reticulata Blanco) and 'Murcott' tangor (C. reticulata x C. sinensis). Donor protoplasts were exposed to gamma rays and receptor protoplasts were treated with 3 mmol L-1 iodoacetamide (IOA), and then they were fused for asymmetric hybridization. Asymmetric embryos were germinated, and the resulting shoots were either grafted onto sour orange, rough lemon or 'Swingle' (C. paradisi x Poncirus trifoliata) x 'Sunki' mandarin rootstock seedlings, or rooted after dipping their bases in indol-butyric acid (IBA) solution. The products were later acclimatized to greenhouse conditions. Ploidy was analyzed by flow cytometry, and hybridity was confirmed by amplified fragment length polymorphism (AFLP) analysis of plantlet DNA samples. The best treatment was the donor-recipient fusion combination of 80 Gy-irradiated 'Ruby Red' protoplasts with 20 min IOA-treated 'Succari' protoplasts. Tetraploid and aneuploid plants were produced. Rooting recalcitrance was solved by dipping shoots' stems in 3,000 mg L-1 IBA solution for 10 min. |
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Palavras-Chave: |
fusão de protoplasto; hibridação somática. |
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Thesagro: |
Fruta Cítrica; Laranja Doce; Pomelo; Raio Gama. |
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Thesaurus NAL: |
Gamma radiation; Grapefruits; Oranges; Protoplast fusion; Somatic hybridization. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/38067/1/44n05a04.pdf
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Marc: |
LEADER 02513naa a2200313 a 4500
001 1125867
005 2018-06-07
008 2009 bl uuuu u00u1 u #d
100 1 $aBONA, C. M. de
245 $aCitrus asymmetric somatic hybrids produced via fusion of gamma-irradiated and iodoacetamide-treated protoplasts.
260 $c2009
500 $aTítulo em português: Híbridos somáticos assimétricos de citros produzidos pela fusão de protoplastos irradiados e tratados com iodoacetamida.
520 $aThe objective of this study was to produce citrus somatic asymmetric hybrids by fusing gamma-irradiated protoplasts with iodoacetamide-treated protoplasts. Protoplasts were isolated from embryogenic suspension cells of grapefruit (Citrus paradisi Macfad.) cultivars Ruby Red and Flame, sweet oranges (C. sinensis Osbeck) 'Itaboraí', 'Natal', Valencia', and 'Succari', from 'Satsuma' (C. unshiu Marcow.) and 'Changsha' mandarin (C. reticulata Blanco) and 'Murcott' tangor (C. reticulata x C. sinensis). Donor protoplasts were exposed to gamma rays and receptor protoplasts were treated with 3 mmol L-1 iodoacetamide (IOA), and then they were fused for asymmetric hybridization. Asymmetric embryos were germinated, and the resulting shoots were either grafted onto sour orange, rough lemon or 'Swingle' (C. paradisi x Poncirus trifoliata) x 'Sunki' mandarin rootstock seedlings, or rooted after dipping their bases in indol-butyric acid (IBA) solution. The products were later acclimatized to greenhouse conditions. Ploidy was analyzed by flow cytometry, and hybridity was confirmed by amplified fragment length polymorphism (AFLP) analysis of plantlet DNA samples. The best treatment was the donor-recipient fusion combination of 80 Gy-irradiated 'Ruby Red' protoplasts with 20 min IOA-treated 'Succari' protoplasts. Tetraploid and aneuploid plants were produced. Rooting recalcitrance was solved by dipping shoots' stems in 3,000 mg L-1 IBA solution for 10 min.
650 $aGamma radiation
650 $aGrapefruits
650 $aOranges
650 $aProtoplast fusion
650 $aSomatic hybridization
650 $aFruta Cítrica
650 $aLaranja Doce
650 $aPomelo
650 $aRaio Gama
653 $afusão de protoplasto
653 $ahibridação somática
700 1 $aGOULD, J. H.
700 1 $aMILLER JUNIOR, J. C.
700 1 $aSTELLY, D.
700 1 $aLOUZADA, E. S.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 44, n. 5, p. 454-462, maio 2009
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