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| Takahashi,Elizabete Keiko; Kobayashi,Adilson Kenji; Vieira,Luiz Gonzaga Esteves. |
| The objective of this study was to examine the effect of two culture systems, liquid medium associated to floating membranes and solid medium, both supplemented with different concentrations of 2,4-D, in the induction of somatic embryogenesis of cassava (Manihot esculenta Crantz). Only 28% of the young leaf lobes (with 9 µM 2,4-D) were induced to form organized embryogenic structures (OES) with membrane rafts, compared to 50% of the explants presenting this type of tissue in solid medium with 36 µM of 2,4-D. Despite the lower response observed in liquid medium with membrane, the amount of OES/explant in all 2,4-D concentrations was higher than solid medium. Based on the results and considering the high cost of the membrane rafts, this system was not... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manihot esculenta; Somatic embryogenesis; Membrane rafts; Organized embryogenic structures (OES). |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000100005 |
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| Gurgel,Fábio de Lima; Laviola,Bruno Galvêas; Silva,Daniel Medeiros da; Kobayashi,Adilson Kenji; Rosado,Tatiana Barbosa. |
| Phenological studies on three morphologically distinct accessions of physic nut (Jatropha curcas L.) were conducted in the Brazilian Savannah biome. Plant growth rate, flowering, fruit formation and development were measured in order to establish appropriate management practices for increasing productivity. The accessions CNPAE-102 (toxic and susceptible to powdery mildew), CNPAE-169 (non-toxic and susceptible to powdery mildew) and CNPAE-259 (toxic and resistant to powdery mildew) were studied. Accessions with undetectable levels of phorbol ester in the grains were considered as non-toxic. The agronomic variables (plant height, number of inflorescences, number of green and ripe fruits per plant) from each accession were measured biweekly during one year... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth rate; Flowering; Fruiting; Temperature. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000600012 |
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| Morais-Lino,Lucymeire Souza; Santos-Serejo,Janay Almeida dos; Silva,Sebastião de Oliveira e; Santana,José Raniere Ferreira de; Kobayashi,Adilson Kenji. |
| The objective of this study was to establish cell suspension culture and plant regeneration via somatic embryogenesis of a Brazilian plantain, cultivar Terra Maranhão, AAB. Immature male flowers were used as explant source for generating highly embryogenic cultures 45 days after inoculation, which were used for establishment of cell suspension culture and multiplication of secondary somatic embryos. Five semisolid culture media were tested for differentiation, maturation, somatic embryos germination and for plant regeneration. An average of 558 plants per one milliliter of 5% SCV (settled cell volume) were regenerated in the MS medium, with 11.4 µM indolacetic acid and 2.2 µM 6-benzylaminopurine. Regenerated plants showed a normal development, and no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Musa; Culture media; Propagation; Somatic embryogenesis. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008001000010 |
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| Domiciano,Gisele Pereira; Kobayashi,Adilson Kenji; Molinari,Hugo Bruno Correa; Laviola,Bruno Galveas; Alves,Alexandre Alonso. |
| Abstract: The objective of this work was to evaluate physiological processes in contrasting physic nut (Jatropha curcas) genotypes during the flowering and fruiting stages. Gas exchange parameters were measured using an infrared gas analyzer, and morphological traits were evaluated during each stage under natural conditions, in a randomized complete block design with five replicates. Differences in yield between J. curcas accessions were not related to photosynthetic performance, but rather to the number of inflorescences and female flowers, which are genetically determined. Moreover, the net CO2 assimilation was equivalent in both genotypes, although they produced different amount of fruit. The genotypes differed consistently in terms of carboxylation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Jatropha curcas; Biodiesel; Carboxylation efficiency; Gas exchange; Photosynthetic capacity. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000100010 |
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| Laviola,Bruno Galvêas; Rosado,Tatiana Barbosa; Bhering,Leonardo Lopes; Kobayashi,Adilson Kenji; Resende,Marcos Deon Vilela de. |
| The objective of this work was to estimate the genetic parameters and variability among accessions (half-sib families) of physic nut (Jatropha curcas) during the early stages of development. For this study, 110 accessions in the first year of development of the physic nut germplasm bank, maintained at Embrapa Cerrados, DF, Brazil, were evaluated in situ. The experiment was established in a randomized complete block design, with two replicates and five plants per plot arranged in rows at 4x2 m spacing. Grain yield, total number of branches per plant, plant height, stem diameter, canopy projection on the row, canopy projection between rows, canopy volume, number of days until first flowering and height of the first inflorescence were evaluated. Estimates of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Jatropha curcas; Germplasm bank; Plant breeding. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010001000010 |
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| Celedón,Paola Alejandra Fiorani; Kobayashi,Adilson Kenji; Vieira,Luiz Gonzaga Esteves. |
| Com o objetivo de conhecer os requerimentos nutricionais de suspensões celulares de algodoeiro foi feita uma análise da utilização de nutrientes no intervalo de 30 dias, normalmente utilizado entre subculturas. As culturas de células em suspensão de algodoeiro, genótipo 101-102B, foram estabelecidas e subcultivadas mensalmente em meio líquido. Foram analisadas o crescimento das culturas, as variações de pH do meio de cultura e a absorção de nutrientes. A matéria fresca das culturas de células foi superior a 6 vezes o valor inicial após 30 dias de cultivo. Houve aumento do pH no início da cultura, estabilizando-se em 6,2 próximo à fase estacionária. Durante o crescimento das suspensões, as células consumiram pelo menos 80% da concentração inicial da maioria... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gossypium hirsutum; Cultura de tecido; Macronutriente; Micronutriente. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162000000300010 |
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