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	Provedor de dados ArchiMer (1) Autor Andrianoelisoa, Hanitriniaina Sahondra (1) Brat, Pierre (1) Danthu, Pascal (1) Lebrun, Marc (1) Menut, Chantal (1) Odoux, Eric (1) Raherimandimby, Marson (1) Randrianarivelo, Roger (1) Romestand, Bernard (1) Sarter, Sarnira (1) Mais... Palavra-chave 1.8 Cineole (1) Antimicrobial activity (1) Cinnamosma fragrans (1) Essential oil (1) Linalool (1) Madagascar (1) Mais... Tipo do documento Text (1) Ano 2009 (1) País France (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 277 Primeira ... 6 7 8 9 10 11 12 13 14 ... Última The influence of topdressing nitrogen on Azospirillum spp. inoculation in maize crops through meta-analysis Bragantia Zeffa,Douglas Mariani; Fantin,Lucas Henrique; Santos,Odair José Andrade Pais dos; Oliveira,André Luiz Martinez de; Canteri,Marcelo Giovanetti; Scapim,Carlos Alberto; Gonçalves,Leandro Simões Azeredo. ABSTRACT The Azospirillum is considered one of the most studied plant growth promoter genus. These bacteria are capable of promoting plant growth through several factors. However, the effect of Azospirillum spp. associated to nitrogen fertilization on maize grain yield has brought about controversial results. Thus, the objective of this study was to verify the influence of topdressing nitrogen on the effect of Azospirillum spp. inoculation on maize crops through meta-analysis. Data were collected from articles published in scientific journals, obtained from the Web of Science®, Scopus® and Google Scholar® databases. The bibliographic review included only articles with direct comparisons between maize yield in the presence and absence of Azospirillum spp.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L.; Meta-regression; Plant growth-promoting bacteria. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000300493 Transformants through Pollination of Mature Maize(Zea mays L.) Pollen Delivered bar Gene by Particle Gun OAK Horikawa, Yoh; Yoshizumi, Takeshi; Kakuta, Hideo; 堀川, 洋; 吉積, 毅; 角田, 英男. 日本草地学会誌　Grassland science 43(2) p.117-123(1997)より転載 Palavras-chave: Magnetite; Particle gun; Pollen; Transformation; Zea mays L.; 花粉; 形質転換; 磁性体; トウモロコシ; パーティクルガン. Ano: 1997 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/744 Tratamento fungicida em semente de milho super-doce Rev. bras. sementes Ramos,Nilza Patrícia; Marcos Filho,Julio; Galli,Juliana Altafin. Neste trabalho, procurou-se avaliar a influência do tratamento fungicida no potencial fisiológico e na sanidade de sementes de milho híbrido super-doce DO-04, separadas por diferenças quanto ao formato. Foi utilizado delineamento inteiramente casualizado, em esquema fatorial 2 x 3 x 4, compreendendo dois formatos de semente (retidas em peneira 15 x ¾", representando as sementes arredondadas, e em peneira 20, representando as achatadas), três lotes e quatro tratamentos fungicidas (testemunha, Fludioxonil, Captan TS + Thiabendazol e Captan TS + Thiram PS). Avaliaram-se a germinação, o vigor (velocidade de germinação, teste de frio e envelhecimento acelerado) e a sanidade de semente. Foi verificado que as sementes arredondadas de milho híbrido super-doce... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L.; Germinação; Vigor; Patógenos. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222008000100004 Trocas gasosas e condutância estomática em três espécies de gramíneas Bragantia Machado,Eduardo Caruso; Lagôa,Ana Maria Magalhães Andrade. Avaliou-se, sob condições naturais e sem deficiência hídrica, o comportamento diário das taxas de assimilação de CO2 (A) e de transpiração (E), a condutância estomática (g) e a eficiência fotossintética do uso de água (E/A) em milho (C4), arroz (C3) e trigo (C3). Nas três espécies, a curva de resposta de A em função da irradiância (I), apresentou a forma de uma hipérbole retangular, porém em milho não houve saturação lumínica. A resposta de g em relação a I apresentou a mesma forma, respondendo E linearmente, nas três espécies. Em relação à variação de g, a curva de resposta de A também mostrou a forma de hipérbole retangular, enquanto E respondeu linearmente. Devido à resposta diferencial de A e de E, tanto em função de I como de g, a razão E/A aumentou... Tipo: Info:eu-repo/semantics/article Palavras-chave: Arroz; Oryza sativa L.; Milho; Zea mays L.; Trigo; Triticum aestivum L.; Fotossíntese; Transpiração. Ano: 1994 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051994000200003 Uptake and nitrogen efficiency in forage maize: effects of nitrogen and plant density Agrociencia Fallah,S.; Tadayyon,A.. Efficient nitrogen (N) fertilizer management is critical for the economic production of maize (Zea mays L.) and the long-term protection of environmental quality. To study the effects of N doses and plant density on the N uptake and efficiency on forage maize cv. SC 704, an experiment was conducted in the Shahrekord region (32° 21' N, 50° 49' E; altitude 2050 m), Iran, at the Agricultural Research Station of Shahrekord University, during the 2007 growing season. The experiment was arranged with four plant densities (92 600, 104 200, 119 000 and 138 900 plants ha-1) and four nitrogen doses (200, 240, 280 and 320 kg ha-1) in a randomized complete block design with four replications. Increases of the plant density led to a significant N uptake in stalk, grain... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L.; Density; Efficiency; Fertilization; Uptake. Ano: 2010 URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952010000500005 Uptake of seed-applied copper by maize and the effects on seed vigor Bragantia Dias,Marcos Altomani Neves; Cicero,Silvio Moure; Novembre,Ana Dionísia Luz Coelho. Seed treatment is a low-cost and efficacious method to deliver a diversity of compounds to field crops. This study evaluated the uptake of seed-applied Cu by maize and the effect on seed vigor. The treatments were composed of a control (untreated seeds) and five dosages of Cu: 0.11, 0.22, 0.44, 0.88 and 1.76 mg Cu seed–1, applied as cuprous oxide and copper oxychloride formulations. Seedling emergence and the speed of seedling emergence were determined in three periods: 1, 60 and 120 days after Cu application. Evaluations of root and shoot dry mass, Cu tissue concentration and efficiencies of Cu uptake and incorporation were conducted with two-leaf stage maize plants. Seed-applied Cu reduces the speed of maize seedling emergence, while the final emergence... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L.; Seed treatment; Seed coating seed dressing; Micronutrients. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000300241 USO DE LA ESPECTROSCOPÍA DE REFLECTANCIA EN EL INFRARROJO CERCANO PARA EL ANÁLISIS DE CALIDAD DE ENSILAJE DE MAÍZ Agricultura Técnica Cozzolino,Daniel; Fassio,Alberto; Fernández,Enrique. La espectroscopía de reflectancia en el infrarrojo cercano (NIRS) fue utilizada para predecir la composición química del ensilaje de maíz (Zea mays L). Doscientas muestras de un amplio rango de características físico - químicas y origen, fueron leídas en un equipo monocromador (NIRS 6500, NIRSystems, Silver Spring, Maryland¸ USA) en el rango de longitudes de onda de 400 a 2500 nm, en reflectancia. Los coeficientes de determinación en calibración (R²cal) y el error estándar de la validación cruzada (SECV) fueron 0,94 (SECV: 0,74%), 0,94 (SECV: 0,54%), 0,91 (SECV: 1,8%), y 0,90 (SECV: 3,8%) para MS, proteína cruda (PC), fibra detergente ácida (FDA) y fibra detergente neutra (FDN) en base materia seca. Los resultados demuestran el potencial del NIRS para el... Tipo: Journal article Palavras-chave: Espectroscopía de reflectancia en el infrarrojo cercano; NIRS; Calidad; Ensilaje de maíz; Zea mays L.. Ano: 2003 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072003000400007 Uso do clorofilômetro no manejo da adubação nitrogenada para milho em sucessão a pastagem de Brachiaria decumbens Ciência Rural Godoy,Leandro José Grava de; Souto,Lauter Silva; Fernandes,Dirceu Maximino; Villas Bôas,Roberto Lyra. A resposta do milho à adubação nitrogenada em cultivo após pastagem depende da espécie, da quantidade de palha, da relação C:N, da população microbiana, das condições climáticas e de outros fatores. O objetivo desta pesquisa foi avaliar a utilização da intensidade da cor verde da folha (ICV), medida pelo clorofilômetro, como indicativo para o manejo da adubação nitrogenada em cobertura, na cultura do milho, em sucessão a pastagem de Brachiaria decumbens Stapf. O experimento foi conduzido em casa de vegetação, em vasos com 29 litros de um Latossolo Vermelho distrófico, com três plantas por vaso. Foi utilizado o delineamento de blocos ao acaso, em esquema fatorial 4 x 4, com cinco repetições, constituído por quatro níveis de nitrogênio (0, 50, 100 e 150mg... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L.; SPAD; Clorofila; Nitrogênio. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782007000100007 Utilization of bedded cattle confinement for organic manure of maize crop AGRIAMBI Mota,Vania C.; Andrade,Ednilton T.; Pinto,Sandra M.; Abreu,Luiz R. de; Leite,Daniel F.. ABSTRACT The use of organic wastes from housing systems in a compost bedded pack barn model could supply much of the fertiliser demand in the farm. Moreover, with the increase in food consumption from sustainable livestock, the use of compost generated in the farm itself becomes economically viable. This study aimed to evaluate the effect of organic manure from bedded cattle confinement applied at different moments on maize crop. The experiment was carried out in a randomized blocks with five treatments and five repetitions. The data were submitted to analysis of variance and the means were compared by Scott-Knott test at p ≤ 0.05. The treatments with addition of fresh compost and mature compost with nitrogen cover had higher production of maize shoot dry... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L.; Dairy cattle; Sustainable livestock; Compost Barn. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000800620 Valoración agronómica morfológica y bioquímica de líneas de maíz con el carácter tallos gemelos. Colegio de Postgraduados Meraz Fonseca, Ma. Lorena. El maíz (Zea mays L.) es el cultivo más importante de México y forma parte importante en la dieta de los mexicanos. Mediante mejoramiento genético, en el área de Fisiotecnia Vegetal del Programa de Recursos Genéticos y Productividad-Genética, Campus Montecillo del Colegio de Postgraduados, se han desarrollado líneas (S5) de maíz con el carácter “Tallos Gemelos” (TG) (expresión de dos plantas, genotípica y fenotípicamente similares, que se forman de una semilla) a las cuales se les ha incrementado la frecuencia de este carácter; por ello, el objetivo del presente trabajo fue: Evaluar el comportamiento agronómico, morfológico y nutraceútico de líneas de maíz que poseen el carácter TG e identificar líneas prometedoras con alta frecuencia, vigor y calidad... Palavras-chave: Zea mays L.; Componentes de Rendimiento; Vigor; Plántulas; Embriones Gemelos; Calidad de Grano; Yield Components; Seedling; Twin Embryos; Grain Quality; Genética; Maestría. Ano: 2014 URL: http://hdl.handle.net/10521/2231 Variabilidade isoenzimática em oito raças de milho Bragantia VALENTE,SÉRGIO EMÍLIO DOS SANTOS; GIMENES,MARCOS APARECIDO; LOPES,CATALINA ROMERO. Com o objetivo de avaliar a variabilidade genética e as relações de afinidade entre dezenove populações de oito raças de milho (Zea mays L.) - as comerciais antigas Cateto Sulino, Cateto Sulino Grosso, Cateto Nortista e Canario de Ocho, e as raças indígenas Moroti, Lenha, Entrelaçado e Caingang - analisaram-se os seguintes sistemas enzimáticos: glutamato oxalacetato transaminase (GOT), esterase (EST) e malato desidrogenase (MDH). Observou-se maior semelhança entre as raças pertencentes a um mesmo grupo, mas as populações analisadas não se agruparam de acordo com as raças, classificadas anteriormente segundo caracteres morfológicos. Os sistemas enzimáticos utilizados não permitiram a caracterização individual de cada uma das raças analisadas. As indígenas... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L.; Variabilidade genética; Eletroforese de isoenzimas. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051999000100005 Variance components of corn hybrids evaluated in the USA corn belt Agrociencia Coutiño-Estrada,Bulmaro; Vidal-Martínez,Victor A.. Abstract In the final steps of a corn (Zea mays L.) breeding program, the test of the superior crosses is a standard practice involving yield trials in many test environments. The objectives of this research were to compare both the magnitude of the standard error of prediction of three different linear mixed models where location and hybrid effects were considered random or fixed effects and the magnitude of the phenotypic variance. Mixed, GLM, and Varcomp procedures from SAS were applied to grain yield and moisture data obtained from 40 hybrids evaluated at 22 locations within the U.S. Corn Belt. Results showed that when using a linear model which considers both location and hybrid effects as random effects, rather than fixed effects, standard errors of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L.; Corn hybrid; Grain moisture; Grain yield; Variance components. Ano: 2006 URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952006000100089 Vigor tests to evaluate the physiological quality of corn seeds cv. 'Sertanejo' Ciência Rural Sena,Daniela Vieira dos Anjos; Alves,Edna Ursulino; Medeiros,Dayana Silva de. ABSTRACT: The vigor tests are intended to monitor the quality of seeds as it allows reliably distinguish lots of low and high vigor, providing additional information to the germination test. So in this study the objective was to identify the most efficient vigor tests on stratification of lots of corn seeds cv. 'Sertanejo'. The experiment was conducted at Laboratory of Seed Analysis at the Center of agricultural Science of the Universidade Federal da Paraíba, using samples from 20 seed lots in a completely randomized design. For characterization of the lots it was evaluated water content, germination and vigor (cold test, electrical conductivity, accelerated aging, seedling emergence in field and germination at low temperatures). The accelerated aging,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L.; Viability; Seed analysis.. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000300151 Vigor-S, a new system for evaluating the physiological potential of maize seeds Scientia Agricola Castan,Danielle Otte Carrara; Gomes-Junior,Francisco Guilhien; Marcos-Filho,Julio. ABSTRACT: The refinement of vigor tests and the possibility of utilizing computer resources for the effective evaluation of the seed physiological potential have attracted considerable interest from research and seed technologists. The aim of this study was to evaluate the physiological potential of maize seeds using the newly-created Automated Analysis of Seed Vigor System (Vigor-S) compared with other recommended seed vigor tests; two maize hybrids were used, each represented by seven seed lots. Germination and vigor (cold test, saturated salt accelerated aging, and field seedling emergence) evaluations were conducted. For the evaluation of seed vigor with the use of seedling image analysis resources, two systems were compared: the Seed Vigor Imaging... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L.; Image analysis; Computer vision; Seedling vigor. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000200167 Weeds in Second Corn Crops in the Period of Transgenic Soybean Implantation in the Middle Paranapanema Region Planta Daninha HIRATA,A.C.S.; DUARTE,A.P.; DUARTE,R.C.R.M.. ABSTRACT: The Middle Paranapanema region concentrates a large part of the second corn production in São Paulo State. Weed surveys in commercial areas are important for monitoring and directing their management. In 2006, 2007, and 2008, weed surveys were carried out on 27, 25, and 24 corn crops, respectively, in ten counties of this region. At the grain filling stage, crops were zigzag sampled with 20 points of 1 m2 per area. In addition, information on weed management, soil cover, and history of the summer crop were collected. The phytosociological parameters frequency, density, abundance, and importance value index were determined. The results evidenced Cenchrus echinathus as the most important species in 2006 and 2007, in addition to high importance... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L.; Phytosociological survey; Weeds. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100341 Yield and ion content in maize irrigated with saline water in a continuous or alternating system Ciência Rural Barbosa,Felipe de Sousa; Lacerda,Claudivan Feitosa de; Gheyi,Hans Raj; Farias,Gabriel Castro; Silva Júnior,Ricardo José da Costa; Lage,Yara Araújo; Hernandez,Fernando Felipe Ferreyra. Irrigation with water containing salt in excess can affect crop development. However, management strategies can be used in order to reduce the impacts of salinity, providing increased efficiency in the use of good quality water. The objective of this research was to study the effects of use of high salinity water for irrigation, in continuous or cyclic manner, on vegetative growth, yield, and accumulation of ions in maize plants. Two experiments were conducted during the months from October to January of the years 2008/2009 and 2009/2010, in the same area, adopting a completely randomized block design with four replications. Irrigation was performed with three types of water with electrical conductivities (ECw) of 0.8 (A1), 2.25 (A2) and 4.5 (A3) dS m-1,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L.; Salt tolerance; Irrigation management. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012001000003 Yield of maize crop irrigated with saline waters AGRIAMBI Rodrigues,Valdécio dos S.; Bezerra,Francisco M. L.; Sousa,Geocleber G. de; Fiusa,Jamili N.; Leite,Kelly N.; Viana,Thales V. de A.. ABSTRACT The growing competition for good-quality water is forcing the use of saline water for irrigation in several areas around the world. The objective of this study was to evaluate the influence of different electrical conductivities of irrigation water on the maize production aspects. The study was conducted in the field from August to December 2017 at the Experimental Farm of the Universidade da Integração Internacional da Lusofonia Afro-Brasileira (UNILAB), Redenção, CE, Brazil. A randomized complete block design with five irrigation water salinity (1.0, 2.0, 3.0, 4.0 and 5.0 dS m-1) and four repetitions was used. The evaluated variables were: unhusked and husked ear weights, husked ear length and diameter, cob weight, 1000-grain weight and yield.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L.; Salt stress; Crop yield. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662020000200101 Registros recuperados: 277 Primeira ... 6 7 8 9 10 11 12 13 14 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco