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| Registros recuperados: 11 | |
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| Silva,Rodrigo de Souza; Moura,Elisa Ferreira; Farias Neto,João Tomé de; Sampaio,José Edson. |
| Abstract: The objective of this work was to estimate genetic parameters and predict genetic values for the selection of cassava (Manihot esculenta) genotypes in the state of Pará, Brazil. The trial was performed with 56 genotypes in two growing seasons (2012/2013 and 2013/2014), in the municipality of Igarapé-Açu, in the state of Pará, using the augmented blocks design with two control treatments. The evaluated traits were: plant shoot weight (PSW), number of roots per plant (NRP), number of rotten roots per plant (NRRP), fresh root yield (FRY), harvest index (HI), and starch content in the roots (SCR). The restricted maximum likelihood (REML) and best linear unbiased prediction (BLUP) methods were used. There was genetic variability among genotypes for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manihot esculenta; Genetic breeding; Genetic variability.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000700834 |
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| Farias Neto,João Tomé de; Moura,Elisa Ferreira; Resende,Marcos Deon Vilela de; Celestino Filho,Pedro; Augusto,Sebastião Geraldo. |
| The objective of this work was to estimate genetic parameters and to evaluate simultaneous selection for root yield and for adaptability and stability of cassava genotypes. The effects of genotypes were assumed as fixed and random, and the mixed model methodology (REML/Blup) was used to estimate genetic parameters and the harmonic mean of the relative performance of genotypic values (HMRPGV), for simultaneous selection purposes. Ten genotypes were analyzed in a complete randomized block design, with four replicates. The experiment was carried out in the municipalities of Altamira, Santarém, and Santa Luzia do Pará in the state of Pará, Brazil, in the growing seasons of 2009/2010, 2010/2011, and 2011/2012. Roots were harvested 12 months after planting, in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manihot esculenta; Genotype x environment interaction; HMRPGV; REML/Blup. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013001200005 |
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| Moura,Elisa Ferreira; Motoike,Sérgio Yoshimitsu. |
| The biotechnological techniques may help solve many problems of guava culture, such as the high perishability of fruits. Somatic embryogenesis can generate highly multiplicative cell cultures and with high regenerative potential, serving as basis for genetic transformation. The aim of this work was to obtain somatic embryogenesis of guava (Psidium guajava L.) cv. Paluma. Immature seeds were used, and they were inoculated in MS environment containing 400 mg L-1 of L-glutamine, 100 mg L-1 myo-inositol, 60 g L-1 sucrose, 100 mg L-1 ascorbic acid and supplemented with different types and concentrations of growth regulators. Embryogenic callus appeared after 37 days of culture in an environment containing 1.0 mg L-1 2.4-D + 2.0 mg L-1 2-ip, in 7% of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tissue culture; Growth regulators; Myrtaceae. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452009000200027 |
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| Albuquerque,Hilçana Ylka Gonçalves de; Oliveira,Eder Jorge de; Brito,Ana Carla; Andrade,Luciano Rogério Braatz de; Carmo,Cátia Dias do; Morgante,Carolina Vianna; Vieira,Eduardo Alano; Moura,Elisa Ferreira; Faleiro,Fábio Gelape. |
| ABSTRACT: Genetic redundancy in cassava (Manihot esculenta Crantz) presents a challenge to efficient management of genetic resources. This study aimed to identify and define the genetic structure of duplicates in cassava germplasm from various Embrapa research units, using single-nucleotide polymorphism (SNP) markers. We evaluated 2,371 accessions with 20,712 SNPs. The identification of duplicates was performed based on multilocus genotypes (MLG), adopting a maximum genetic distance threshold of 0.05. The population structure was defined based on discriminant analysis of principal components (DAPC). A total of 1,757 unique and 614 duplicate accessions were identified. The redundancy of the collections ranged from 17 % (Belém, PA – Brazil) to 39 %... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manihot esculenta Crantz; Genotyping-by-sequencing; Multilocus; Genetic resources. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001400328 |
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| 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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| Moura,Elisa Ferreira; Menezes,Ilmarina Campos de; Lemos,Oriel Filgueira de. |
| A pimenta-do-reino (Piper nigrum) tem grande importância para a economia do Norte do Brasil. A pimenta-do-reino é propagada principalmente por estaquia que, além de ser pouco eficiente, pode possibilitar a propagação da doença fusariose. Dessa forma, testes para verificar a eficiência da micropropagação são pertinentes. O objetivo do trabalho foi testar concentrações de BAP - 6-benzilaminopurina (0,5, 1,5, 3,0 e 4,5mg L-1) e a adição de carvão ativado a 0,2% ao meio de cultura na micropropagação de pimenta-do-reino. O meio de cultura foi composto de sais e vitaminas de Murashige & Skoog, 3% de sacarose e 8g L-1 de ágar. Foram utilizados como explantes ápices caulinares de plântulas da cultivar "Bragantina" germinadas in vitro. Os tratamentos foram... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cultura de tecidos vegetais; Piper nigrum; Planta aromática. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000100012 |
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| Ramos,Rachel Soares; Motoike,Sérgio Yoshimitsu; Moura,Elisa Ferreira; Gomes,Simone Bhering de Souza; Rodrigues,Vânia de Fátima; Oliveira,Márcio Antonio Rocha de. |
| A micropropagação de bananeira (Musa spp.) via ápices caulinares já está bem estabelecida para diversas cultivares. Entretanto, podem ser feitos aperfeiçoamentos nos protocolos visando a obtenção de mudas mais vigorosas. Objetivou-se, neste trabalho, verificar a adição de nitrogênio na forma de uréia em diferentes concentrações (0, 100, 200, 400 e 800 mg L-1), no alongamento e enraizamento de brotos das cultivares Grande Naine, Prata Anã, Maçã e Nanicão. Houve efeito positivo da uréia no crescimento dos explantes, na produção de raízes e de massa seca para a cultivar Maçã, até 200 mg L-1 de uréia. As cultivares Prata Anã e Grande Naine não foram beneficiadas com a adição de uréia, e a concentração de 800 mg L-1 gerou morte das microplantas dessas... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Musa spp.; Cultura de tecidos; Fonte de nitrogênio. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542009000700024 |
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| Registros recuperados: 11 | |
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