رسالة جامعية
Flutuação populacional e controle químico de Ochetina uniformis (Pascoe, 1881) (Coleoptera, Erirhinidae, Erirhininae) em área de arroz irrigado ; Population fluctution of adults of Ochetina uniformis (Pascoe, 1881) (Coleoptera, Erirhinidae, Erirhininae) in flooded rice (Oryza sativa l.)
| العنوان: | Flutuação populacional e controle químico de Ochetina uniformis (Pascoe, 1881) (Coleoptera, Erirhinidae, Erirhininae) em área de arroz irrigado ; Population fluctution of adults of Ochetina uniformis (Pascoe, 1881) (Coleoptera, Erirhinidae, Erirhininae) in flooded rice (Oryza sativa l.) |
|---|---|
| المؤلفون: | Possebon, Sandro Borba |
| المساهمون: | Costa, Ervandil Corrêa, http://lattes.cnpq.br/5146228842979896Test, Machado, Sérgio Luiz de Oliveira, http://lattes.cnpq.br/0360886006002113Test, Silva, Mauro Tadeu Braga da, http://lattes.cnpq.br/8258658102189058Test |
| بيانات النشر: | Universidade Federal de Santa Maria BR Agronomia UFSM Programa de Pós-Graduação em Agronomia |
| سنة النشر: | 2007 |
| المجموعة: | Manancial - Repositório Digital da UFSM (Universidade Federal de Santa Maria) |
| مصطلحات موضوعية: | Insecta, Dinâmica populacional, Variação temporal, Gorgulho-aquático, Insects, Population dynamics, Temporal variation, Weevil, CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
| الوصف: | A field population survey of Ochetina uniformis (Pascoe, 1881) (Coleoptera: Erirhinidae, Erirhininae) was performed at Santa Maria, RS, in a flooded rice commercial field, between quarterly June 2005 to July 2006 (rice was grown between October 2005 to March 2006). A stratified sampling was used approach; quarterly 90 randomized samples were taken in plots measuring 0.25 x 0.25 m, with total of 24 samples during the survey period. There was a reduction in the population of O. uniformis starting from July 2005 to January 2006. Soil tillage affected the population of O. uniformis in the rice field, and did not affected the population on the hibernation areas. Some areas showed no insects and another showed a few number of individuals, indicting grouping behavior. Adults of O. uniformis, are concentrated in the levees, representing 44% of the total number os insects. The population reduced between the levees to the middle of the field, with averaging 14% inside the field. From January to February, a reduced number of adults were verified in the levee. Outside the cultivated area there were no adults of O. uniformis during the 12 months survey period. In this study high populations of O. uniformis, were concentrated in the levees of the field for a period of six months, from July to December of 2005. It was observed a large number of dead adult of O. uniformis infected by Beauveria bassiana. ; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior ; Um levantamento populacional de Ochetina uniformis (Pascoe, 1881) (Coleoptera: Erirhinidae) foi realizado no município de Santa Maria, RS, em lavoura comercial de arroz irrigado, no período de junho de 2005 a julho de 2006. Um sistema de amostragem, estratificado foi realizado, onde 90 unidades amostrais, cada uma com dimensão de 25 x 25 cm, ou 0,625 m2/ unidade, foram retiradas quinzenalmente, no momento da amostragem. Foram feitas 24 amostragens da fase adulta. Houve uma redução da população de O. uniformis a partir do mês de julho de 2005 a janeiro de 2006. O ... |
| نوع الوثيقة: | thesis |
| وصف الملف: | application/pdf |
| اللغة: | Portuguese |
| العلاقة: | POSSEBON, Sandro Borba. Population fluctution of adults of Ochetina uniformis (Pascoe, 1881) (Coleoptera, Erirhinidae, Erirhininae) in flooded rice (Oryza sativa l.). 2007. 60 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2007.; http://repositorio.ufsm.br/handle/1/5099Test |
| الإتاحة: | http://repositorio.ufsm.br/handle/1/5099Test |
| حقوق: | Acesso Aberto |
| رقم الانضمام: | edsbas.62D83EF9 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |