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| Registros recuperados: 141 | |
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| AKHTAR,R.; JAVAID,A.. |
| ABSTRACT: Onion is attacked by destructive soil-borne fungal plant pathogen Fusarium oxysporum f. sp. cepae, resulting in basal rot disease. In the present study, three Trichoderma species (T. pseudokoningii, T. harzianum and T. reesei) and leaves of solanaceous weed Withania somnifera were used for management of this disease. The in vitro interaction study revealed T. harzianum as the most effective biocontrol agent against the pathogen. In a pot trial, dried leaf material of W. somnifera (1%, 2% and 3% w/w) and inoculum of T. harzianum were mixed in the pot soil previously inoculated with the pathogen. The highest incidence of the disease (87%) was found in positive control (pathogen inoculation without any amendment). Different rates of dry leaf... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Basal plate rot; Biological control; Weed; Withania somnifera. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100216 |
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| ALBUQUERQUE, J. A. S. de; ALBUQUERQUE, T. C. S. de. |
| Dois experimentos foram conduzudos com herbicidas em um vinhedo sob condicoes irrigadas na regiao do Submedio Sao Francisco. Foram, testados diferentes herbicidas e suas combinacoes comparadas a capina manual. Os produtos usados e suas respectivas concentracoes foram os seguintes: Paraquat (0,8 lPA/ha), Paraquat (0,8 lPA/ha) + Diuron (1,0 kg PA/ha); Paraquat (0,8 lPA/ha) + Atrazine (2,0 kg PA/ha), Paraquat (0,8 lPA/ha) + Orizaline (3,0 kg PA/ha); Glyphosate (2,5 l PA/ha), Glyphosate (2,5 lPA/ha) + Diuron (1,0 kg PA/ha). Os resultados obtidos permitiram as seguintes conclusoes: os herbicidas nao causaram efeitos fitotoxicos aparentes nas videiras; uma unica aplicacao de Glyphosate isolado ou combinado com Diuron foi suficiente para que o vinhedo... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Planta daninha; Controle; Nordeste; Submédio São Francisco; Pest; Weed; Control; Grape.; Uva; Herbicida; Praga.; Herbicides.. |
| Ano: 1983 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131340 |
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| Ayanegui Méndez, Segundo Raúl. |
| La información experimental del presente trabajo se obtuvo al evaluar en una localidad tres variedades de fríjol (Phaseolus vulgaris L.) de las cuales se encuentra la variedad Canario -107 como precoz, la variedad Negro – Chapingo como intermedia y la variedad Negro – 150 como tardío. El rendimiento depende de componentes que surgen del ciclo biológico de la variedad, de la arquitectura de la planta, de las características de la vaina y también de las cualidades del grano por semilla. Aunque todos los componentes participan en el rendimiento de la planta, no todos son de la misma magnitud, ni reciben el mismo daño cuando el cultivo compite con malezas adaptadas a la región. Para conocer la magnitud de estos efectos, durante el ciclo agrícola del 2006, se... |
| Tipo: Tesis |
Palavras-chave: Frijol; Componentes del rendimiento; Maleza; Maestría; Genética; Bean; Yield Components; Weed. |
| Ano: 2008 |
URL: http://hdl.handle.net/10521/1589 |
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| Barros,Renato T. de; Martins,Cibele C.; Silva,Givanildo Z. da; Martins,Dagoberto. |
| ABSTRACT The invasive behavior of beggarticks (Bidens pilosa L.) in cropped areas is due to its ecological adaptation and aggressive regeneration, which is dependent on seed germination. The objective of this research was to verify the effects of B. pilosa seed origin and temperature on seed germination. The seeds were collected in Entre Rios do Oeste, PR, Botucatu, SP, Capão Bonito, SP, São Joaquim da Barra, SP, Sertãozinho, SP, Selvíria, MS, Barra do Garças, MT, Areia, PB and Manaus, AM. The seeds were evaluated regarding moisture content, 1000-seed weight, germination speed index and germination at 60 days (normal seedlings, dormant seeds and dead seeds) at the temperatures of 10, 15, 20, 25, 30, 35, 40, and 45 ºC. The replicates were distributed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bidens pilosa; Weed; Production sites; Dormancy. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000700448 |
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| Battistus,A.G.; Klein,J.; Costa,N.V.; Guimarães,V.F.; Hoffmann,V.. |
| Species of the orchidaceae family are grown for marketing flowers and among them the genus Cattleya stands out. However, due to its slow growth, the substrate is subjected to weed infestation. Therefore, this study aims to evaluate the selectivity and efficiency of herbicides in controlling Pilea microphylla in Cattleya orchid seedlings (Cattleya tenebrosa x Cattleya leopoldy). We used a completely randomized design with four replications. The evaluated herbicides were oxyfluorfen (0, 120, 240 and 480 g ha-1), flumioxazin (0, 12.5, 25 and 40 g ha-1), nicosulfuron (0, 20, 40 and 80 g ha-1) mesotrione (0, 96, 144 and 192 g ha-1), clethodim (0, 60, 84 and 108 g ha-1) and metsulfuron-methyl (0, 1.2, 1.8 and 2.4 g ha-1). At post-emergence applying time, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Weed; Herbicide; Floriculture; Selectivity. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000400015 |
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| Bianco, Silvano; UNESP; Bianco, Matheus Saraiva; UNESP; Carvalho, Leonardo Bianco de; UNESP. |
| Com o objetivo de obter uma equação matemática que, por meio de parâmetros lineares dimensionais das folhas, permita a estimativa da área foliar de Ageratum conyzoides, estudaram-se relações entre a área foliar real (Sf) e parâmetros dimensionais do limbo foliar, como o comprimento ao longo da nervura principal (C) e a largura máxima (L) perpendicular à nervura principal, em 200 limbos foliares. Foram utilizados os modelos estatísticos: linear Y = a + bx; linear simples Y = bx, geométrico Y = axb e exponencial Y = abx. Os modelos estatísticos lineares, exponenciais e geométricos obtidos podem ser usados para estimação da área foliar do mentrasto. Do ponto de vista prático, sugere-se optar pelo modelo linear simples, envolvendo o produto C*L, com... |
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Palavras-chave: 5.01.00.00-9 Agronomia planta daninha; Análise de crescimento; Mentrasto. growth analysis; Weed; Billygoat weed. |
| Ano: 2008 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5311 |
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| Bianco,S.; Carvalho,L.B.; Bianco,M.S.. |
| A greenhouse trial was carried out from November 1995 to April 1996 at FCAV/UNESP, Brazil, aiming to study the dry matter production and the accumulation and distribution of macronutrients in Solanum americanum, an important weed for annual and perennial crops in Brazil. The plants were grown in seven liter pots with sand substrate, irrigated daily with Hoagland & Arnon nutrient solution. The experimental design was completely randomized with four replicates. The treatments corresponded to evaluation times at 14 day intervals, beginning 21 days after emergence (DAE). In each evaluation, the plants of four pots were analyzed for dry matter production and macronutrient content. S. americanum had a small dry matter and macronutrient accumulation at... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Weed; American black nightshade; Dry matter; Macronutrients. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582010000200008 |
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| Registros recuperados: 141 | |
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