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Anatomy, histochemistry and ultrastructure of seed and somatic embryo of Acrocomia aculeata (Arecaceae) Scientia Agricola
Moura,Elisa Ferreira; Ventrella,Marília Contin; Motoike,Sérgio Yoshimitsu.
Macaw palm (Acrocomia aculeata (Jacq.) Lodd. ex Mart.) is a tropical species with multiple uses, including oil supply for biodiesel production. However, structural and physiological studies of the seed are still scarce, as well as in vitro propagation techniques. The aim of this study was to characterize the anatomy, histochemistry and ultrastructure of the seed and the in vitro somatic embryo of A. aculeata, gaining insight into relationships between the post-harvest seed behavior and the somatic embryo conversion to plant. The zygotic embryo and the endosperm show high quantities of protein and lipids, stored in protein and lipid bodies, respectively. The cell wall storage polysaccharides occur in the thickened cell wall of the endosperm. The absence of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Macaw palm; Zygotic embryo; Endosperm; Storage reserves.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000400004
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Effect of Nitrogen and Potassium Rates on Early Development of Macaw Palm Rev. Bras. Ciênc. Solo
Pimentel,Leonardo Duarte; Bruckner,Claudio Horst; Martinez,Hermínia Emília Prieto; Motoike,Sérgio Yoshimitsu; Manfio,Candida Elisa; Santos,Rafael Carlos dos.
ABSTRACT The economic exploitation of macaw palm [Acrocomia aculeate(Jacq.) Lodd. ex Mart.] is currently in transition, from extractivism to agricultural cultivation, thus requiring studies on the fertilization of the crop. This study evaluated the response of three genotypes of macaw palm to increasing rates of nitrogen and potassium, grown in the field until the 2nd year and to establish reference contents of mineral nutrients in the leaf. The experiment was a split-plot randomized block design with five main treatments (N and K rates) and three secondary treatments (genotypes), with three replications, each plot containing three plants. Plant height, leaf number, vigor, and nutrient contents in leaf tissues were evaluated at the end of 2nd year of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acrocomia aculeata; Side-dressing fertilization; Macaw palm; Leaf mineral nutrient content.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000601671
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Fatty acids profile and thermal properties of macauba palm pulp oil from Cerrados and Pantanal biomes, Brazil. Repositório Alice
FAVARO, S. P.; CICONINI, G.; SANTOS, G. P.; MIRANDA, C. H. B..
2013
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Macauba; Macaw palm; Acrocomia aculeata; Ácidos graxos; Propriedades térmicas; Óleo da polpa; Cerrados; Pantanal; Brasil.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/969867
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Genetic parameters and selection of macaw palm (Acrocomia aculeata) accessions: an alternative crop for biofuels. Repositório Alice
COSTA, A. M.; MOTOIKE, S. Y.; CORRÊA, T. R.; SILVA, T. C.; COSER, S. M.; RESENDE, M. D. V. de; TEÓFILO, R. F..
This study aimed to estimate the parameters related to the genetic control of the physical characteristics of the fruits, oil content, and oil yield, and to proceed with the selection of macaw palm accessions. Forty-four macaw palm accessions of the active germplasm collection of the Federal University of Viçosa were collected for the evaluation of epicarp dry matter, pulp dry matter, endocarp dry matter, kernel dry matter, oil content, and oil yield. Narrow-sense individual heritability estimates were considered as of intermediate magnitude. The coefficient of repeatability and the accuracy in family selection was of high magnitude. Oil yield per plant presented the highest coefficient of individual genetic variation. Five different accessions contributed...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Variabilidade genética; Macaw palm; Genetic variability; Acrocomia Aculeata; Macaúba; Espécie Nativa; Bioenergia; Arecaceae; Bioenergy.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1099924
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Relationship between biospeckle laser technique and firmness of Acrocomia aculeata fruits AGRIAMBI
Costa,Anderson G.; Pinto,Francisco A. C.; Braga,Roberto A.; Motoike,Sergio Y.; Gracia,Luis M. N..
ABSTRACT Knowing the maturation of the Acrocomia aculeata (macaw palm) fruit is decisive for harvest to be performed when the fruit has a higher content and quality of oil. There are different approaches to monitor maturation and they can be classified as destructive and non-destructive. Variables obtained by optical instruments have been used to determine maturation stage. The present study evaluated the relationship between the biological activity measured by the optical technique of biospeckle laser and firmness, measured in the Acrocomia aculeata fruit pulp between the 41st and 61st week after flowering. The biological activity was quantified by biospeckle images, while the fruit pulp firmness was determined by digital penetrometer. Correlations...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Macaw palm; Maturation; Harvesting; Optical techniques.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000100068
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Somatic embryogenesis in Acrocomia aculeata Jacq. (Lodd.) ex Mart using the thin cell layer technique Acta Botanica
Padilha,João Henrique Delfrate; Ribas,Luciana Lopes Fortes; Amano,Érika; Quoirin,Marguerite.
Considering the necessity of Acrocomia aculeata propagation for large-scale production, the aim of this study was to establish a somatic embryogenesis protocol using the thin cell layer (TCL) technique. Aerial parts of in vitro plants were transversally cut at the base into eight TCLs and placed in a culture medium for callus induction. The induction medium was composed of Y3 salts and Morel´s vitamins and supplemented with 150, 300 or 600 μM picloram. After 12 weeks the calli were transferred to a medium supplemented with BAP or 2-iP (12.5 or 25 μM). After 18 weeks, the somatic embryo clusters were transferred to a conversion medium (plant growth regulator-free medium). Primary callus induction rate was higher in the first three TCLs and in media...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2-iP; Callus induction; Histology; Macaw palm; Picloram.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000400516
Registros recuperados: 6
Primeira ... 1 ... Última
 

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