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	Provedor de dados Colegio de Postgraduados (1) Acta Amazonica (1) ArchiMer (1) Horticultura Brasileira (1) Autor Alvarenga, P. (1) Bordas, F. (1) Colzi, I. (1) Deletic, A. (1) Duarte,Severino R (1) Fletcher, T. (1) Gonnelli, C. (1) Hernández López, Juan Carlos (1) Kidd, P. (1) Kolbas, A. (1) Lamy, Jean-baptiste (1) Lima,Tâmara Thaiz Santana (1) Marchand, L. (1) Mench, M. (1) Miranda,Izildinha Souza (1) Newell, P. (1) Nsanganwimana, F. (1) Oliveira,Fábio Henrique T de (1) Oustriere, N. (1) Quintela-sabaris, C. (1) Mais... Palavra-chave Root biomass (4) Acido salicílico (1) Biomasa radical (1) Copper tolerance (1) Drought (1) Green corn (1) Hidrociencias (1) Maestría (1) Phytoremediation (1) Plant height (1) Plant populations (1) Productividad (1) Productivity (1) Rendimiento (1) Salicylic acid (1) Seasonality (1) Succession (1) Trace element (1) Triticum aestivum (1) Tropical forest (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Text (1) Ano 2014 (1) 2012 (2) 2007 (1) País Brazil (2) France (1) Mexico (1) Idioma Inglês (3) Espanhol (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Fine-root production in two secondary forest sites with distinct ages in Eastern Amazon Acta Amazonica Lima,Tâmara Thaiz Santana; Miranda,Izildinha Souza; Vasconcelos,Steel Silva. The objective of this work was to assess the fine-root (≤ 2 mm diameter) production dynamics of two forest regrowths at different ages. Fine-root production was monitored by the ingrowth core method in one 18-year-old site (2 ha) and one 10-year-old site (0.5 ha), both localized in the Apeú region, Northern Pará State, Brazil. The sites were abandoned after successive shifting cultivation, beginning in 1940. Monthly production of live fine-root was similar between sites and was influenced by rainfall seasonality, with higher production during the dry season than the wet season for mass and length. However, mortality in terms of mass was higher in the 10-year-old site than in the 18-year-old site. The seasonality influenced mortality only in the 18-year old... Tipo: Info:eu-repo/semantics/article Palavras-chave: Drought; Root biomass; Seasonality; Succession; Tropical forest. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672012000100012 Estudio del desarrollo radical del cultivo del trigo (Triticum aestivum L. var. Triunfo F2004) aplicando ácido salicílico vía foliar. Colegio de Postgraduados Hernández López, Juan Carlos. El trigo es un cultivo importante en la vida económica y social de México, ya que es parte importante de la dieta alimenticia de su población. El avance de la tecnología agrícola trata de satisfacer la demanda alimentaria, en el caso del trigo se busca incrementar su producción junto con otros productos agrícolas. También es importante realizar estudios fisiológicos que permitan incrementar la producción en el trigo. Dichos estudios indican; que las plantas producen diversas sustancias que regulan su crecimiento y desarrollo, estas sustancias se llaman hormonas vegetales o reguladores de crecimiento. Dentro de estos reguladores se encuentra el Ácido Salicílico. Se tienen evidencias científicas que la aplicación de Ácido Salicílico (AS) en las plantas,... Palavras-chave: Acido salicílico; Biomasa radical; Productividad; Rendimiento; Triticum aestivum; Productivity; Root biomass; Salicylic acid; Yield; Hidrociencias; Maestría. Ano: 2012 URL: http://hdl.handle.net/10521/1090 Effect of planting density on green ear yield of maize cultivars bred in different periods Horticultura Brasileira Silva,Paulo Sérgio L e; Duarte,Severino R; Oliveira,Fábio Henrique T de; Silva,Júlio César do V. Corn cultivation in the Northeast region of Brazil is characterized by a great diversity of production systems, ranging from large companies (modern cultivars and relatively high planting densities) to small farms (family agriculture, traditional cultivars, and low planting densities). In the present work we evaluated the effects of planting density (30; 40; 50; 60; or 70 thousand plants ha-1 - TPH) on green ear yield of cultivars Centralmex (traditional) and AG 510 (hybrid). Different densities were achieved by maintaining 1.0 m between rows and varying the spacing between pits, within the row. Cultivars and planting densities were combined in a factorial scheme, arranged in a random block design with four replicates and four 6 m long row plots. The... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays; Green corn; Plant populations; Plant height; Root biomass. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362007000200005 Root biomass production in populations of six rooted macrophytes in response to Cu exposure: Intra-specific variability versus constitutive-like tolerance ArchiMer Marchand, L.; Nsanganwimana, F.; Lamy, Jean-baptiste; Quintela-sabaris, C.; Gonnelli, C.; Colzi, I.; Fletcher, T.; Oustriere, N.; Kolbas, A.; Kidd, P.; Bordas, F.; Newell, P.; Alvarenga, P.; Deletic, A.; Mench, M.. Intra-specific variability of root biomass production (RP) of six rooted macrophytes, i.e. Juncus effusus, Phragmites australis, Schoenoplectus lacustris, Typha latifolia, Phalaris arundinacea, and Iris pseudacorus grown from clones, in response to Cu exposure was investigated. Root biomass production varied widely for all these macrophytes in control conditions (0.08 μM) according to the sampling site. Root biomass production of T. latifolia and I. pseudacorus in the 2.5–25 μM Cu range depended on the sampling location but not on the Cu dose in the growth medium. For P. australis, J. effusus, S. lacustris, and P. arundinacea, an intra-specific variability of RP depending on both the sampling location and the Cu-dose was evidenced. This intra-specific... Tipo: Text Palavras-chave: Copper tolerance; Phytoremediation; Root biomass; Trace element; Wetland. Ano: 2014 URL: http://archimer.ifremer.fr/doc/00201/31183/29869.pdf Registros recuperados: 4 Primeira ... 1 ... Última

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