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| Gadotti,Gizele I.; Baudet,Leopoldo; Villela,Francisco A.. |
| The use of gravity table can result in improved quality of seeds of several species, demonstrating the superiority of the quality attributes of seeds collected in the top positions in relation to the lower positions of the discharge zone of the gravity table. The availability of information on tobacco seeds, particularly on the action of gravity table, has not been addressed in the literature. The present study was to evaluate the influence of different regulations in the gravity table on the quality of tobacco seeds. The terminal edge of the machine of 50 cm width was divided into four parts plus the outlet for stones. The treatments were in the following fractions: original seed (obtained in the feed hopper), heavy seed (at the top), middle high,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nicotiana tabacum; Processing; Vigor; Sanity. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000200016 |
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| Dias,M.K.R.; Neves,L.R.; Marinho,R.G.B.; Tavares-Dias,M.. |
| The aim of this study was to evaluate the parasites and parasite-host relationship in Colossoma macropomum from eight fish farms in Amapá State, Northern Brazil. A total of 12,242,559 parasites were recovered from hosts in the eight fish farms, and 87.4% of fish were infected by one or more parasite species, such as Ichthyophthirius multifiliis, Piscinoodinium pillulare, Trichodinasp. and Tetrahymena sp. (Protozoa), Anacanthorus spathulatus, Linguadactyloides brinkmanni, Mymarothecium boegeri and Notozothecium janauachensis (Monogenoidea), Procamallanus(Spirocamallanus) inopinatus (Nematoda) and Perulernaea gamitanae and Braga patagonica (Crustacea). Ichthyophthirius multifiliis presented dominance, but the greatest levels of parasitism were caused by I.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colossoma macropomum; Metazoans; Parasites; Protozoans; Sanity. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000401070 |
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| Marinho,R.G.B.; Tavares-Dias,M.; Dias-Grigório,M.K.R.; Neves,L.R.; Yoshioka,E.T.O.; Boijink,C.L.; Takemoto,R.M.. |
| The parasitofauna in the giant Amazon basin, pirarucu (Arapaima gigas Schinz, 1822) cultured in fish farms from the state of Amapá, in eastern Amazonia (Brazil) was investigated. Of the 100 examined fish, 90.0% were parasitized by Ichthyophthirius multifiliis (Ciliophora), Dawestrema cycloancistrium, Dawestrema cycloancistrioides (Monogenoidea) and Polyacanthorhynchus macrorhynchus (Acanthocephala), which had an aggregated distribution pattern. The highest infection rates were caused by I. multifiliis and the lowest by P. macrorhynchus. Infection rates were different for each fish farm, due to different water quality and management characteristics. A negative correlation was found between the intensity of monogenoideans D. cycloancistrium and D.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazonia; Fish farm; Freshwater fish; Parasites; Sanity. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000400035 |
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| Chagas,Domitila Brzoskowski; Monteiro,Francielle Liz; Hübner,Silvia de Oliveira; Lima,Marcelo de; Fischer,Geferson. |
| ABSTRACT: Bees are very important insects for agriculture, fulfilling an important role in pollination and renewal of the ecosystem. However, in several countries significant losses of colonies and population decline of honeybees and native bees have been reported in recent years. Most researchers reported that premature losses are linked to several factors, including viruses that have a great impact on the colonies. This article reports the identification of new viruses, some transmission routes, the association of these parasites with the symptoms of the diseases that affect the health of honeybees, as well as viruses that have been described in Brazil. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Africanized bees; Pollinating insects; Diseases; Sanity. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000900451 |
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| Stefanello,Raquel; Muniz,Marlove Fátima Brião; Nunes,Ubirajara Russi; Dutra,Cláudia Braga; Somavilla,Iana. |
| The preservation of seed quality during the storage period depends not only on the conditions during production and harvesting but also on the storage and maintenance of appropriate storage product conditions. Thus, the aim of this study was to evaluate the physiological and sanitary qualities of maize landrace seeds stored under two conditions. The maize seed batch varieties Oito carreiras, Cabo roxo and Lombo baio were used. Tests included germination, first count, cold test, accelerated aging and sanity. Based on the results it was concluded that the physiological quality of these seed varieties decreased with the storage period. The major fungi identified in the maize seeds during storage were from the genera Aspergillus, Fusarium and Penicillium,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Storage; Sanity; Germination. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000400339 |
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