Consulta: subjectFacets:"Regrowth"
Registros recuperados: 9
Data/hora: 12/06/2024 09:51:00

Controle dos rebrotamentos das soqueiras do algodoeiro herbáceo em plantio direto no cerrado.
Provedor de dados: 14
Autores: CORREA, J. C.; AGUIAR, J. L. P. de.
RESUMO: O trabalho foi realizado com o objetivo de avaliar a eficácia e a viabilidade econômica do uso de herbicidas para o controle dos rebrotamentos das soqueiras do algodoeiro herbáceo (Gossypium hirsutum L. r. latifolium Hutch) no sistema de plantio direto no Cerrado. O ensaio foi conduzido em duas épocas depois do corte do algodoeiro. Na primeira época (53 dias após o corte), foram aplicadas doses dos herbicidas: glyphosate (480g/litro do sal de isopropilamina), 2,4 D (806g/litro do sal dimetilamina do ácido 2,4D diclorofenoxiacético) e mistura dos dois ingredientes. Na segunda (161 dias após o corte), foram aplicadas doses de herbicidas e, 10 dias depois da aplicação, os rebrotamentos foram cortados. Nas áreas correspondentes às duas épocas, foram...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Planta daninha; Production system.; Algodão; Cerrado; Controle Químico; Gossypium Hirsutum; Herbicida; Rebrota; Soca.; Sistema de Produção; Herbicides; Chemical control; Cotton; Regrowth; Ratooning; Weeds.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/563883

USO múltiplo de árvores da caatinga.
Provedor de dados: 14
Plantas do Nordeste; Poda e desgalhamento; Manejo da rebrota; Producao e colheita da madeira.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Brasil; Wood plants.; Caatinga; Árvore; Planta forrageira; Madeira; Poda; Rebrota; Trees; Regrowth; Pruning; Forage; Brazil.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/529152

Recovery in culture of viable but nonculturable Vibrio parahaemolyticus: regrowth or resuscitation?
Provedor de dados: 5
Autores: Coutard, Francois; Crassous, Philippe; Droguet, Michael; Gobin, Eric; Colwell, Rita; Pommepuy, Monique; Hervio Heath, Dominique.
The objective of this study was to explore the recovery of culturability of viable but nonculturable ( VBNC) Vibrio parahaemolyticus after temperature upshift and to determine whether regrowth or resuscitation occurred. A clinical strain of V. parahaemolyticus Vp5 was rendered VBNC by exposure to artificial seawater ( ASW) at 4 degrees C. Aliquots of the ASW suspension of cells ( 0.1, 1 and 10 ml) were subjected to increased temperatures of 20 degrees C and 37 degrees C. Culturability of the cells in the aliquots was monitored for colony formation on a rich medium and changes in morphology were measured by scanning ( SEM) and transmission ( TEM) electron microscopy. Samples of VBNC cells were fixed and examined by SEM, revealing a heterogeneous population...
Tipo: Text
Palavras-chave: Transmission electron microscopy; Scanning electron microscopy; Resuscitation; Regrowth; Vibrio parahaemolyticus; VBNC state.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3117.pdf

Fixed versus variable rest period effects on herbage accumulation and canopy structure of grazed 'Tifton 85' and 'Jiggs' Bermuda grass
Provedor de dados: 86
Autores: Pedreira,Carlos Guilherme Silveira; Silva,Valdson José da; Guimarães,Murilo Saraiva; Pequeno,Diego Noleto Luz; Tonato,Felipe.
Abstract: The objective of this work was to evaluate the effects of variable and fixed rest periods on the forage production, plant-part composition, and canopy structural characteristics of 'Tifton 85' and 'Jiggs' Bermuda grass (Cynodon spp.) pastures under rotational stocking. The treatments were two grass cultivars (Jiggs and Tifton 85) and two rest periods (grazing starting whenever the canopy reached 25 cm or every 28 days, regardless of canopy height). A completely randomized experimental design, with a 2×2 factorial arrangement (two grass cultivars and two managements), was used with three replicates. The experiment was carried out during the summer growing season in Piracicaba, SP, Brazil. Pre- and post-grazing forage mass chacteristics were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cynodon; Canopy height; Grazing frequency; Light interception; Pasture management; Regrowth.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000100113

Phytophagous insects in cotton crop residues during the fallow period in the state of Mato Grosso do Sul, Brazil
Provedor de dados: 86
Autores: Silva,Rafael Azevedo da; Degrande,Paulo Eduardo; Gomes,Carlos Eduardo Carducci; Souza,Ellen Patricia de; Leal,Mateus Fuchs.
Abstract: The objective of this work was to analyze the faunistic composition of the insect pests that occur during the fallow period in cotton (Gossypium hirsutum) crop residues in the state of Mato Grosso do Sul, Brazil. The study sites were the municipalities of Alcinópolis, Chapadão do Sul, Costa Rica, Aral Moreira, Dourados, and Sidrolândia. A sampling design with two replicates per municipality was used. Each replicate comprised 100 random points, and each point corresponded to a cotton plant that was entirely inspected, to count the insect pests on it. The obtained fauna was analyzed and a rarefaction curve of the species was generated. During the evaluation period, a total of 23 species were recorded in the cotton crop residue, and the most...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthonomus grandis; Gossypium hirsutum; Host plant; Legislation; Regrowth.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000800875

Management of Bidens pilosa and Commelina benghalensis in organic corn cultivation under no-tillage
Provedor de dados: 87
Autores: Lemos,J.P.; Galvão,J.C.C.; Silva,A.A.; Fontanetti,A.; Cecon,P.R.; Lemos,L.M.C.
Mowing is one of the most important methods used to control weeds in organic farming, under the no-tillage system. This study aimed to evaluate the effects of three weed management techniques on weed development, using the weeds Bidens pilosa and Commelina benghalensis, in competition with organic corn {mowing at the three-leaf stage (14 days after corn emergence - DACE), mowing at the three- and six-leaf stage (14 and 25 DACE), and no mowing. Single cultivation with no mowing was also evaluated for these weeds. Mowings performed at 14 and 25 DACE prevented the production of B. pilosa seeds, ensuring efficient control of this species. However, the use of this technique was shown to be inefficient in the control of C. benghalensis.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mowings; Regrowth; Morphology; Competition.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000200012

Genetic parameters of agronomic characters in Panicum maximum hybrids
Provedor de dados: 96
Autores: Braz,Thiago Gomes dos Santos; Fonseca,Dilermando Miranda da; Jank,Liana; Resende,Marcos Deon Vilela de; Martuscello,Janaina Azevedo; Simeão,Rosangela Maria.
This study was carried out with the objective of estimating the genetic parameters of agronomic traits in Panicum maximum hybrids. Genotypes obtained from the crosses between the sexual plants S10 and S12 and cultivars Tanzania and Mombasa were evaluated. The design was an incomplete blocks design with two replicates (clones) and 33 blocks. Each block was constituted by three lines or plots with nine plants each, which were evaluated in six harvests. All the characters presented low broad sense heritabilities for both the individual harvest and for the mean of harvests and a large difference between the heritability and the individual repeatability coefficient, which may be due to the high permanent environmental variance, mainly for forage dry matter and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bipolaris maydis; Leaf percentage; Leaf yield; Mixed models; Morpho-agronomic characters; Regrowth.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000400001

Adaptation of the C4 grass Panicum maximum to defoliation is related to plasticity of N uptake, mobilisation and allocation patterns
Provedor de dados: 63
Autores: Santos,Patricia Menezes; Thornton,Barry; Corsi,Moacyr.
Dry mass production and persistence of Panicum maximum pastures depends on nitrogen supply. Defoliation influences N uptake and allocation patterns yet its effects on plasticity of N dynamics in P. maximum have not been investigated. Stable isotopes of N (15N) were used in order to test the hypothesis that defoliation in terms of proportion of the leaf area removed effects N mobilisation, uptake and allocation patterns in P. maximum. The plants were initially cut weekly to a height of either 0.15 m or 0.30 m for seven weeks. Eight weeks after the first defoliation, all plants were defoliated for a final time to remove 0, 25, 50, 75 or 100 % of the area of each individual leaf blade of the main tiller. Root N uptake was reduced when all leaf area was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clipping height; Guineagrass; Organic reserves; Regrowth; Tropical grass.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000500002

Growth of marandu palisadegrass subjected to strategies of intermittent stocking
Provedor de dados: 63
Autores: Giacomini,Alessandra Aparecida; Silva,Sila Carneiro da; Sarmento,Daniel Oliveira de Lucena; Zeferino,Cauê Varesqui; Souza Júnior,Salim Jacaúna; Trindade,Júlio Kuhn da; Guarda,Vítor del'Alamo; Nascimento Júnior,Domicio do.
Grazing strategies alter sward leaf area patterns of growth, affecting herbage accumulation and utilisation. The objective of this experiment was to evaluate the growth of marandu palisadegrass (Brachiaria brizantha cv. Marandu) swards subjected to strategies of intermittent stocking. The experiment was carried out in Piracicaba, São Paulo, Brazil, from October/2004 to September/2005. Swards were grazed at 95 and 100% canopy light interception (LI) to post-grazing heights of 10 and 15 cm, following a 2 × 2 factorial arrangement with four replications in a randomised complete block design. The response variables evaluated were: crop growth rate, relative growth rate, net assimilation rate, leaf area ratio and leaf weight ratio. In early and late spring, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachiaria brizantha; Canopy light interception; Regrowth; Grazing management.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000600003