Page 1. 568 Fitopatol. bras. 28(5), set - out 2003 Uma Técnica para Obter Abundante Esporulação d... more Page 1. 568 Fitopatol. bras. 28(5), set - out 2003 Uma Técnica para Obter Abundante Esporulação de Phytophthora palmivora Gilson S. Silva1 & Izumy P. Doihara1 1Universidade Estadual do Maranhão, CEP 65001-970, São Luís, MA, e-mail: gilson_soares@uol.com.br ...
Page 1. 101 Fitopatol. bras. 26(1), março 2001 MANCHA FOLIAR E PODRIDÃO DE FRUTOS DA ACEROLA CAUS... more Page 1. 101 Fitopatol. bras. 26(1), março 2001 MANCHA FOLIAR E PODRIDÃO DE FRUTOS DA ACEROLA CAUSADAS POR Calonectria ilicicola GILSON S.SILVA1, FLÁVIA A. CUTRIM 1 & FRANCISCO A. FERREIRA2 1Universidade Estadual do Maranhão, Cx. ...
Arachis repens was detected as a new host of Puccinia arachidis. Plants in the field presented sa... more Arachis repens was detected as a new host of Puccinia arachidis. Plants in the field presented salient orange pustules in the abaxial part of the leaves that, after adhesion, formed dark lesions with yellow halos. After microscopic analyses, two types of spores were identified - teliospores and uredospores both of which are rarely seen. This is the first occurrence of the disease and of uredospore presence in this host.
Aleurocanthus woglumi Ashby in citrus and mango crops in the state of Maranhão, Brazil, is record... more Aleurocanthus woglumi Ashby in citrus and mango crops in the state of Maranhão, Brazil, is recorded. Samples of 2003 and 2004 from several counties were identified and deposited in the Insect Collection of the Laboratório de Entomologia of the Núcleo de Biotecnologia Agronômica, Universidade Estadual do Maranhão.
The protected culture, among other advantages, made possible to diminish the seasoning in offers ... more The protected culture, among other advantages, made possible to diminish the seasoning in offers and to improve the quality of vegetables. However, one consists in technology of high cost, that it may be attenuated with the increase in the efficiency of the use of the protected area, proportionated for the intercropping. The experiment was carried out at greenhouse at UNESP, Jaboticabal-SP, in the period of August and November of 2005, with the aim of evaluating the operational cost (COT) and the profitability of the crisphead lettuce "Verônica" (Lactuca sativa L.) in monoculture and in intercropping with the Japanese cucumber "Hokushin" (Cucumis sativus L.), in protected environment. The main cost items analyzed were the operational cost, the agricultural amendments and the materials cost. For the crisphead lettuce in monoculture and in intercropping, the COT was R$ 696,37 and R$ 295,06/614,4 m2 respectively and the productivity was 822.53 and 890.78 kg/614,4 m². In monoculture and in intercropping the gross incomes were R$ 489,93 and R$ 452,39/614,4 m2 respectively. It was verified a loss of R$ 206,44/614,4 m² in the crisphead lettuce monoculture and an operational profit of R$ 157,33/614,4 m² in protected environment when in intercropping with cucumber.
Page 1. Fitopatol. bras. 30(4), jul - ago 2005 439 Ocorrência de Fuligo septica em Alface e Coent... more Page 1. Fitopatol. bras. 30(4), jul - ago 2005 439 Ocorrência de Fuligo septica em Alface e Coentro de Caboclo Gilson S. Silva 1 & José L. Bezerra2 1Universidade Estadual do Maranhão, Departamento de Fitotecnia e Fitossanidade ...
Page 1. Summa Phytopathol., Botucatu, v. 32, n. 2, p. 197, 2006 197 Catasetum maranhense, um novo... more Page 1. Summa Phytopathol., Botucatu, v. 32, n. 2, p. 197, 2006 197 Catasetum maranhense, um novo hospedeiro de Sphenospora kevorkianii (Uredinales) Gilson Soares da Silva1 , Mário Barreto Figueiredo2 1Universidade ...
Lasiodiplodia theobromae is responsible for diseases in several cultivated plants, causing signif... more Lasiodiplodia theobromae is responsible for diseases in several cultivated plants, causing significant losses in production, particularly among fruit trees in the Brazilian Northeast. Basic studies on this fungus are necessary to understand better the pathogen-host interactions and to trace control strategies. This work aimed to characterize eight isolates of L. theobromae from different hosts, accessing the mycelial growth, pycnidium production and fertility, morphological aspects of the colonies and pathogenicity. The isolates varied in all the characteristics studied. The culture medium of oatmeal agar provided best pycnidium production and fertility, with the isolate obtained from mango and passion fruit standing out. The culture medium of carrot agar did not provide pycnidium production. With relation to mycelial growth, V-8 juice medium was the culture medium which provided fastest mycelial growth. Coloration of the colony varied across a wide range, with white-gray coloration prevailing. As to the formation of pycnidia, it was verified that most of the isolates formed pycnidia. Assays evaluating pathogenicity by cross inoculation revealed that all isolates were pathogenic against all tested host plants.
Go to AGRIS search. Revista Brasileira de Ciência do Solo (2005/10). Épocas e formas de aplicação... more Go to AGRIS search. Revista Brasileira de Ciência do Solo (2005/10). Épocas e formas de aplicação de nitrogênio no milho sob plantio direto em solo de cerrado. ...
Atualmente, tem-se difundido a aplicação de inoculante no sulco de semeadura na cultura da soja, ... more Atualmente, tem-se difundido a aplicação de inoculante no sulco de semeadura na cultura da soja, mas há poucas informações que dão suporte a essa prática e comprovam sua eficiência em diferentes ambientes manejados sob plantio direto. Este trabalho teve como objetivo ...
This work aims at evaluating a methodology in order to estimate the volume of wood in the forest ... more This work aims at evaluating a methodology in order to estimate the volume of wood in the forest inventory considering the stem taper quality of trees. A stand of 4.31 ha was used with an area planted with Eucalyptus sp. with sixteen years-old, originated from seminific propagation. The initial spacing used in the planting was 3 m x 3 m,
Page 1. 568 Fitopatol. bras. 28(5), set - out 2003 Uma Técnica para Obter Abundante Esporulação d... more Page 1. 568 Fitopatol. bras. 28(5), set - out 2003 Uma Técnica para Obter Abundante Esporulação de Phytophthora palmivora Gilson S. Silva1 & Izumy P. Doihara1 1Universidade Estadual do Maranhão, CEP 65001-970, São Luís, MA, e-mail: gilson_soares@uol.com.br ...
Page 1. 101 Fitopatol. bras. 26(1), março 2001 MANCHA FOLIAR E PODRIDÃO DE FRUTOS DA ACEROLA CAUS... more Page 1. 101 Fitopatol. bras. 26(1), março 2001 MANCHA FOLIAR E PODRIDÃO DE FRUTOS DA ACEROLA CAUSADAS POR Calonectria ilicicola GILSON S.SILVA1, FLÁVIA A. CUTRIM 1 & FRANCISCO A. FERREIRA2 1Universidade Estadual do Maranhão, Cx. ...
Arachis repens was detected as a new host of Puccinia arachidis. Plants in the field presented sa... more Arachis repens was detected as a new host of Puccinia arachidis. Plants in the field presented salient orange pustules in the abaxial part of the leaves that, after adhesion, formed dark lesions with yellow halos. After microscopic analyses, two types of spores were identified - teliospores and uredospores both of which are rarely seen. This is the first occurrence of the disease and of uredospore presence in this host.
Aleurocanthus woglumi Ashby in citrus and mango crops in the state of Maranhão, Brazil, is record... more Aleurocanthus woglumi Ashby in citrus and mango crops in the state of Maranhão, Brazil, is recorded. Samples of 2003 and 2004 from several counties were identified and deposited in the Insect Collection of the Laboratório de Entomologia of the Núcleo de Biotecnologia Agronômica, Universidade Estadual do Maranhão.
The protected culture, among other advantages, made possible to diminish the seasoning in offers ... more The protected culture, among other advantages, made possible to diminish the seasoning in offers and to improve the quality of vegetables. However, one consists in technology of high cost, that it may be attenuated with the increase in the efficiency of the use of the protected area, proportionated for the intercropping. The experiment was carried out at greenhouse at UNESP, Jaboticabal-SP, in the period of August and November of 2005, with the aim of evaluating the operational cost (COT) and the profitability of the crisphead lettuce "Verônica" (Lactuca sativa L.) in monoculture and in intercropping with the Japanese cucumber "Hokushin" (Cucumis sativus L.), in protected environment. The main cost items analyzed were the operational cost, the agricultural amendments and the materials cost. For the crisphead lettuce in monoculture and in intercropping, the COT was R$ 696,37 and R$ 295,06/614,4 m2 respectively and the productivity was 822.53 and 890.78 kg/614,4 m². In monoculture and in intercropping the gross incomes were R$ 489,93 and R$ 452,39/614,4 m2 respectively. It was verified a loss of R$ 206,44/614,4 m² in the crisphead lettuce monoculture and an operational profit of R$ 157,33/614,4 m² in protected environment when in intercropping with cucumber.
Page 1. Fitopatol. bras. 30(4), jul - ago 2005 439 Ocorrência de Fuligo septica em Alface e Coent... more Page 1. Fitopatol. bras. 30(4), jul - ago 2005 439 Ocorrência de Fuligo septica em Alface e Coentro de Caboclo Gilson S. Silva 1 & José L. Bezerra2 1Universidade Estadual do Maranhão, Departamento de Fitotecnia e Fitossanidade ...
Page 1. Summa Phytopathol., Botucatu, v. 32, n. 2, p. 197, 2006 197 Catasetum maranhense, um novo... more Page 1. Summa Phytopathol., Botucatu, v. 32, n. 2, p. 197, 2006 197 Catasetum maranhense, um novo hospedeiro de Sphenospora kevorkianii (Uredinales) Gilson Soares da Silva1 , Mário Barreto Figueiredo2 1Universidade ...
Lasiodiplodia theobromae is responsible for diseases in several cultivated plants, causing signif... more Lasiodiplodia theobromae is responsible for diseases in several cultivated plants, causing significant losses in production, particularly among fruit trees in the Brazilian Northeast. Basic studies on this fungus are necessary to understand better the pathogen-host interactions and to trace control strategies. This work aimed to characterize eight isolates of L. theobromae from different hosts, accessing the mycelial growth, pycnidium production and fertility, morphological aspects of the colonies and pathogenicity. The isolates varied in all the characteristics studied. The culture medium of oatmeal agar provided best pycnidium production and fertility, with the isolate obtained from mango and passion fruit standing out. The culture medium of carrot agar did not provide pycnidium production. With relation to mycelial growth, V-8 juice medium was the culture medium which provided fastest mycelial growth. Coloration of the colony varied across a wide range, with white-gray coloration prevailing. As to the formation of pycnidia, it was verified that most of the isolates formed pycnidia. Assays evaluating pathogenicity by cross inoculation revealed that all isolates were pathogenic against all tested host plants.
Go to AGRIS search. Revista Brasileira de Ciência do Solo (2005/10). Épocas e formas de aplicação... more Go to AGRIS search. Revista Brasileira de Ciência do Solo (2005/10). Épocas e formas de aplicação de nitrogênio no milho sob plantio direto em solo de cerrado. ...
Atualmente, tem-se difundido a aplicação de inoculante no sulco de semeadura na cultura da soja, ... more Atualmente, tem-se difundido a aplicação de inoculante no sulco de semeadura na cultura da soja, mas há poucas informações que dão suporte a essa prática e comprovam sua eficiência em diferentes ambientes manejados sob plantio direto. Este trabalho teve como objetivo ...
This work aims at evaluating a methodology in order to estimate the volume of wood in the forest ... more This work aims at evaluating a methodology in order to estimate the volume of wood in the forest inventory considering the stem taper quality of trees. A stand of 4.31 ha was used with an area planted with Eucalyptus sp. with sixteen years-old, originated from seminific propagation. The initial spacing used in the planting was 3 m x 3 m,
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