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| Registros recuperados: 86 | |
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| VALDETARO, D. C. O. F.; HARRINGTON, T. C.; OLIVEIRA, L. S. S.; GUIMARÃES, L. M. S.; MCNEW, D. L.; PIMENTA, L. V. A.; GONCALVES, R. C.; SCHURT, D. A.; ALFENAS, A. C.. |
| Ceratocystis fimbriata Ellis & Halsted recently was recorded causing seed and seedling blight on Carapa guianensis Aubl. (andiroba), a tree species native to the Amazon Rainforest and prized for its valuable timber and medicinal seed oil. C. fimbriata more commonly causes wilt type diseases in woody hosts, especially on non-native host trees. However, on andiroba the disease occurs on seedlings and seeds, affecting the species regeneration. We studied 73 isolates of C. fimbriata on andiroba from three regions of the Amazon Basin to see if they represented natural or introduced populations. Analysis of ITS rDNA sequences and phylogenetic analysis of mating type genes revealed new haplotypes of C. fimbriata from the Latin American Clade that were closely... |
| Tipo: Artigo de periódico |
Palavras-chave: Produto florestal não madeireiro (PFNM); Enfermedades fungales de las plantas; Plantas de semilleros; Semillas; Variación genética; Repeticiones de microsatélite; Marcador microssatélite; Stem blight; Tizón del tallo; Andiroba; Carapa Guianensis; Doença Fúngica; Fungo; Ceratocystis Fimbriata; Plântula; Semente; Variação Genética; Marcador Genético; Nontimber forest products; Fungal diseases of plants; Seedlings; Seeds; Genetic variation; Genetic markers; Microsatellite repeats. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1107239 |
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| VILELA, A. L. O.; ROSA, S. D. V. F. da; COELHO, S. V. B.; PEREIRA, C. C.; SOUZA, A. C. de; RIBEIRO, F. A. S.. |
| Coffee seeds rapidly lose viability during storage, which hinders the development of vigorous seedlings for crop establishment. There are reports that seed endosperm is more sensitive to deterioration than embryos, which can be excised and cultivated in vitro. However, a substantial number of plants grown in vitro do not survive during transfer to a greenhouse or field environment. The objective of this study was to evaluate the acclimatization of coffee seedlings of cultivar Catuaí Amarelo IAC 62, developed from zygotic embryos obtained from aged seeds in different substrates and environments, for the production of well-developed seedlings suitable for planting. For this purpose, seedlings were obtained from the in vitro cultivation of embryos obtained... |
| Tipo: Artigo de periódico |
Palavras-chave: Zygotic embryos; Coffea arabica var. arabica; Seedlings; Seeds. |
| Ano: 2022 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1148763 |
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| Schuch,Márcia Wulff; Tomaz,Zeni Fonseca Pinto; Casarin,Josiane Vergara; Moreira,Roseane Maidana; Silva,Jacqueline Barcelos da. |
| Abstract In Brazil, there is a growing interest in the crop of the olive tree, especially in those regions considered suitable for cultivation, where low temperatures occur between 8ºC and 10ºC in the period before flowering. The areas with these characteristics are located mainly in the South and Southeast regions of the country, characterized by a temperate climate in function of altitude, with the occurrence of natural vernalization. The propagation is an integral part of the production chain and the first step towards the implantation of the olive tree crop or renovation of the existing orchards. Obtaining quality seedlings, besides guaranteeing uniformity and reliable varietal origin, is a factor that influences the whole life of the orchard,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seedlings; Cloning; Mini propagation and micro propagation; Cultivation system without soil. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000201004 |
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| Rodríguez-Morelos,Víctor H; Soto-Estrada,Alejandra; Pérez-Moreno,Jesús; Franco-Ramírez,Alicia; Díaz-Rivera,Pablo. |
| BACKGROUND: Big-leaf mahogany (Swietenia macrophylla King) is the woody species with the highest economic value in Latin America. Currently, it is subject to intensive exploitation, diminishing its natural populations. Due to this decline, the species is a preferred species for reforestation and establishment of commercial tropical plantations. Mycorrhizal symbiosis is a biotic factor scarcely studied in the ecology of this species. Therefore, the objective of this research was to identify the diversity of arbuscular mycorrhizal fungi (AMF) species associated with the rhizosphere of seedlings and mature trees of big-leaf mahogany growing in its natural habitat, a tropical rain forest in Los Tuxtlas, Veracruz, Mexico. Soil samples from a 20-cm depth were... |
| Tipo: Journal article |
Palavras-chave: Arbuscular mycorrhizae; Morphospecies; Seedlings; Spores; Tropical trees. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2014000100009 |
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| RESENDE, G. M. de; SATURNINO, H. M.. |
| Com o objetivo de avaliar diferentes fases de desenvolvimento de mudas de aspargo visando a determinar a idade ideal de transplante, instalou-se, no periodo de julho de 1987 a julho de 1988, um experimento no Campo Experimental de Gorutuba, Porteirinha-MG, utilizando-se a cultivar Argenteuil Precoce. O delineamento experimental foi inteiramente casualizado, avaliando-se mudas com onze distintas fases de desenvolvimento (60;90;120;150;180;210;240;270;300;330 e 360 dias apos a semeadura), em tres repeticoes. Pelos resultados obtidos, recomenda-se o transplante de mudas com 180 dias, como a idade ideal de transplante nas condicoes da regiao Norte de Minas Gerais, quando as mesmas atingiram 103,65 cm de altura, 6,91 hastes verdes, 74,42 raizes carnosas, 78,17... |
| Tipo: Artigo de periódico |
Palavras-chave: Caracteristica; Transplanting; Asparagus Officinalis; Aspargo; Muda; Planta; Transplante; Seedlings. |
| Ano: 1999 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/133806 |
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| Registros recuperados: 86 | |
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