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Physiological quality of soybean seeds stored after industrial treatments with ...
Pereira, Renata Cristiane; Pereira, Lucas Caiubi; Braccini, Alessandro Lucca; Correia, Larissa Vinis; Pelloso, Murilo Fuentes; Matera, Thaisa CavalieriThis study aimed to relate the smallest set of variables that compose the quality of soybean seeds lot under study, as well as to evaluate the influence of four industrial seed treatments and their respective slurry volumes on the physiological potential. The experiment was carried out in a completely randomized block design with 4 replicates and 24 treatments. The chemical treatments were: control (T1), micron...
Microsatellite molecular marker-assisted gene pyramiding for resistance to Asia...
Menezes, Vanessa Maria Pereira Silva; Viganó, Joselaine; Braccini, Alessandro Lucca; Viganó, JoselaineO presente estudo objetivou piramidar genes de resistência à FAS por meio da seleção assistida por marcadores (SAM) microsatélites (SSR), demonstrando os passos para a piramidação. Para obter a primeira geração de piramidação de genes, realizaram-se cruzamentos entre as plantas introduzidas (PI’s), que possuem os genes Rpp1, Rpp2, Rpp3, Rpp4 e Rpp5. As plantas F1 dos cruzamentos iniciais foram cruzadas para obt...
Physiological potential of popcorn seeds submitted to water stress after treate...
Ferreira, Bruno Ribeiro; Chichanoski, Carolina; Moterle, Lia Mara; Santos, Renato Frederico dos; Braccini, Alessandro LuccaSeed performance is one of the key points for high productivity in crop development. The objective of this study was to evaluate the physiological potential of popcorn cultivar seeds (IAC 125 and BRS-Ângela) treated with Stimulate® bioregulator under water stress. Popcorn seeds were submitted to different osmotic potential levels 0; -0.1; -0.3; -0.6 and -0.9 MPa and induced by mannitol, after being treated with...
Morphology and anatomy of the seedling and the tirodendro of Calophyllum brasil...
Jesus, Valquíria Aparecida Mendes de; Braccini, Alessandro Lucca; Souza, Luiz Antonio de; Moscheta, Ismar SebastiãoCalophyllum brasiliense Cambess. é uma planta arbórea que se apresenta como possível alternativa para substituir espécies em extinção com madeira nobre. A morfologia e anatomia da plântula desta espécie é objeto do presente trabalho. As plântulas, em diferentes fases de desenvolvimento, foram obtidas em casa de vegetação e analisadas a fresco e fixadas em FAA 50. A análise anatômica foi feita mediante seções a ...
Microsatellite molecular marker-assisted gene pyramiding for resistance to Asia...
Viganó, Joselaine; Braccini, Alessandro Lucca; Schuster, Ivan; Menezes, Vanessa Maria Pereira SilvaThe present study aimed at pyramiding ASR-resistance genes through microsatellite (SSR) marker-assisted selection (MAS) and demonstrating the pyramiding steps. To obtain the first generation of gene pyramiding, crosses were made between introduced plants (PI’s), which have the genes Rpp1, Rpp2, Rpp3, Rpp4, and Rpp5. F1 plants from the initial crosses were intercrossed to obtain plants with the four resistance g...
Stevia rebaudiana (Bert) Bertoni: influence of osmotic stress and seed priming ...
Hossa, Keila Regina; Pedroza Carneiro, José Walter; Guedes, Terezinha Aparecida; Braccini, Alessandro LuccaThe foremost factor necessary for plant growers cultivating large acreages of Stevia rebaudiana (Bert) Bertoni is the production of qualitative bedding plants. The objective of this study was to evaluate the influence of osmotic-priming on the uniformity of seed germination. First, we evaluated the percentage of normal seedlings from two seed samples harvested in 2011 and 2012. The seeds harvested in 2012 prod...
Effect of seed coat on the seed germination and seedling development of Calophy...
Jesus, Valquíria Aparecida Mendes de; Braccini, Alessandro Lucca; Scapim, Carlos Alberto; Santos, Fábio Lúcio; Mariucci, Giovanna Emanuelle GoncalvesThis work aimed to study the effect of the Calophyllum brasiliense seed coat on the seed germination process. To this end, three experiments were conducted in laboratory, greenhouse and screenhouse. From a total of six treatments, five are related to the seed coat (mechanical scarification; mechanical scarification followed by 2 hours in water, chemical scarification, hot water immersion and complete seed coat ...
Morphology and anatomy of the seedling and the tirodendro of Calophyllum brasil...
Jesus, Valquíria Aparecida Mendes de; Braccini, Alessandro Lucca; Souza, Luiz Antonio de; Moscheta, Ismar SebastiãoCalophyllum brasiliense Cambess. is a tree species that is presented as an alternative to replace endangered species of hardwood. The morphology and anatomy of the seedling of this species is the object of the present study. Seedlings at different stages of development were obtained in greenhouse and analyzed fresh and fixed in FAA (Formalin-Acetic-Alcohol) 50. The anatomical analysis was done by the freehand a...
Editorial: Acta Scientiarum: 40 Years
Braccini, Alessandro Luccahttp://www.dx.doi.org/10.4025/actasciagron.v36i1.22405Editorial