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| Registros recuperados: 21 | |
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| TORRES, A.C.; NASCIMENTO, W.M.; PAIVA, S.A.V.; ARAGÃO, F.A.S. de. |
| Glyphosate is a systemic, nonselective, postemergence herbicide that inhibits growth of both weeds and crop plants. Once inside the plant, glyphosate interferes with biosynthesis of aromatic amino acids phenylalanine, tyrosine, and tryptophan, by inhibiting the activity of 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS), a key enzyme of the shikimate pathway. The objective of this work was to develop a simple, effective and inexpensible method for identification of transgenic soybean tolerant to glyphosate. This technique consisted in germinating soybean seeds in filter paper moistened with 100 to 200 mM of glyphosate. Transgenic soybean seeds tolerant to glyphosate germinated normally in this solution and, between 7 and 10 days, started to develop a... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Glycine max; Herbicide resistance; Transgenic plants; Biosynthesis; Resistência a herbicida; Plantas transgênicas; Biossíntese. |
| Ano: 2003 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/109203 |
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| D'Emden, Francis H.; Llewellyn, Rick S.; Burton, Michael P.. |
| The purpose of this research is to improve understanding of conservation tillage adoption decisions by identifying key biophysical and socio-economic factors influencing no-till adoption by grain growers across four Australian cropping regions. The study is based on interviews with 384 grain growers using a questionnaire aimed at eliciting perceptions relating to a range of possible long- and short-term agronomic interactions associated with the relative economic advantage of shifting to a no-tillage cropping system. Together with other farm and farmer-specific variables, a dichotomous logistic regression analysis was used to identify opportunities for research and extension to facilitate more rapid adoption decisions. The broader systems approach to... |
| Tipo: Article |
Palavras-chave: Adoption; Conservation tillage; Herbicide resistance; No-till; Perceptions; Weed management; Farm Management. |
| Ano: 2008 |
URL: http://purl.umn.edu/118537 |
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| AGOSTINETTO, D.; ULGUIM, A. da R.; VARGAS, L.; SILVA, J. D. G. da; LANGARO, A. C.. |
| The objective of this work was to compare wild poinsettia (Euphorbia heterophylla) biotypes as to their morphological characteristics, as well as to determine their genetic similarity in the state of Rio Grande do Sul, Brazil, and to confront the light compensation point of susceptible biotypes and of biotypes with low-resistance level to glyphosate. Besides the morphology analysis, the study included the genetic characterization, by AFLP, of susceptible (GR50 = 58.65 g ha-1 a.e.) biotypes and of biotypes with low resistance (GR50 = 310.36 g ha-1 a.e.) to glyphosate. The competitive ability of the biotypes was inferred according to their light compensation point. The observed morphological characteristics do not allow to differentiate biotypes as to their... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Competitive ability; EPSPs inhibitor herbicide; Ight compensation point; Light compensation point; Habilidade competitiva; Herbicida inibidor de EPSPs; Ponto de compensação de luz; Resistência a herbicidas; Euphorbia heterophylla; Amendoim bravo; Erva daninha; Euphorbia heterophylla; Amplified fragment length polymorphism; Herbicide resistance; Weeds. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1088975 |
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| Doole, Graeme J.. |
| Lucerne ( Medicago sativa L.) helps to prevent soil salinisation in the Western Australian Wheatbelt by reducing recharge to saline water tables. There is broad consensus, though, that it is not sufficiently profitable to motivate producers to plant it at the intensity at which considerable off-site benefits would be conferred. This paper employs a multiple-phase optimal control model to explore the value of this perennial pasture for the management of herbicide-resistant annual ryegrass ( Lolium rigidum Gaud.) in a crop–pasture rotation, given the difficulty of observing this value in practice. The availability of selective herbicides for efficient weed control is found to determine whether or not it is profitable to adopt lucerne pasture under optimal... |
| Tipo: Article |
Palavras-chave: Annual ryegrass; Herbicide resistance; Multiple-phase optimal control; Crop Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/118547 |
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| KRZYZANIAK, F.; ADEGAS, F. S.; MENDES, R. R.; TAKANO, H. K.; SILVA, V. F. V.; OLIVEIRA JUNIOR, R. S. de; CONSTANTIM, J.; MACHADO, F. G.; FRANCHINI, L. H. M.; GAZZIERO, D. L. P.. |
| bitstream/item/189081/1/informe-tecnico-pgauem-v.4-n.1-2018-1541551580.pdf |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Picão Preto; Resistência a Pesticida; Bidens; Glyphosate; Herbicide resistance. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1102251 |
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| MATTE, W. D.; CAVALIERI, S. D.; PEREIRA, C. S.; IKEDA, F. S.; POLTRONIERI, F.. |
| In the current scenario of resistance of weeds to glyphosate in grain and fiber production systems, imidazolinone-resistant soybean is shown as an option in the rotation of biotechnology events and herbicide action me chanisms through the application of [imazapic+imazapyr]. However, due to its persistence in the soil, the herbicide may harm the subsequent crop. The objective of this work was to evaluate the residual activity of the herbicide [imazapic+imazapyr] applied in pre-emergence in soybean cultivation on cotton in succession. The experimental design was a randomized block design with five replicates, using seven concentrations (0; 6.25; 12.5; 25; 50; 100 and 200%) of the recommended dosage of the herbicide [imazapic+imazapyr] ([78,75+26,25] g ha-1).... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Herbicida; Resistência; Glycine Max; Gossypium Hirsutum; Herbicides; Herbicide resistance. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1107108 |
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| Registros recuperados: 21 | |
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