Herbicide Tolerance
Mostrando 13-24 de 61 artigos, teses e dissertações.
-
13. Soybean cultivar BR-16-AHAS tolerance to the herbicide imazapyr.
The objective of this work was to evaluate the effect of the transgenic soybean BR-16-AHAS genetic constitution on the tolerance to the herbicide imazapyr. BR-16-AHAS was crossed with ten other genotypes. The experimental design was a complete randomized block, in a 2x12x3 factorial arrangement, with two sowing periods (winter and summer), twelve crossing gr
Pesquisa Agropecuária Brasileira. Publicado em: 2011
-
14. Development of herbicide-tolerant irrigated rice cultivars.
The objective of this work was to develop new irrigated rice lines tolerant to imidazolinone herbicides. The backcross breeding procedure was used to transfer the imidazolinone tolerance allele from mutant 93AS3510 to the recurrent parents 'BRS 7 Taim' and 'BRS Pelota'. Individual herbicide-tolerant plants were selected in each generation, for three backcros
Pesquisa Agropecuária Brasileira. Publicado em: 2011
-
15. Development of herbicide-tolerant irrigated rice cultivars.
The objective of this work was to develop new irrigated rice lines tolerant to imidazolinone herbicides. The backcross breeding procedure was used to transfer the imidazolinone tolerance allele from mutant 93AS3510 to the recurrent parents 'BRS 7 Taim' and 'BRS Pelota'. Individual herbicide-tolerant plants were selected in each generation, for three backcros
Pesquisa Agropecuária Brasileira. Publicado em: 2011
-
16. Interferências no agrossistema e riscos ambientais de culturas transgênicas tolerantes a herbicidas e protegidas contra insetos.
A engenharia genética possibilitou o desenvolvimento de cultivares transgênicas, cuja área plantada em 18 países atinge 67,7 milhões de hectares, principalmente de cultivares tolerantes a herbicidas e protegidas contra insetos-praga. Mesmo após rigorosa avaliação de riscos, o plantio dessas cultivares tem despertado preocupação com impactos ambient
Cadernos de Ciência & Tecnologia. Publicado em: 2011
-
17. Prospección de las combinaciones de herbicidas para prevenir malezas tolerantes y resistentes al glifosato
The intense use of glyphosate in Argentina has increased the spread of weeds with tolerance to this herbicide, like Ipomoea nil. Cases of weed resistance to ALS inhibitors were documented in Argentina with Amaranthus quitensis. Likewise, in Brazil, it has increased weed resistance to glyphosate in weeds such as Lolium multiflorum and Euphorbia heterophylla.
Planta Daninha. Publicado em: 2010
-
18. Tolerance of eucalyptus genotypes to glyphosate / Tolerância de genótipos de eucalipto ao glyphosate
Glyphosate is the most widely used herbicide in weed management in the eucalyptus culture. Since it is a non- selective herbicide, many are the problems, when contact occurs, either by drift or incorrect application of this product with eucalyptus plants. In literature, there are few studies performed to elucidate the differential tolerance of eucalyptus gen
Publicado em: 2009
-
19. Seletividade do herbicida nicosulfuron para as culturas de milho e arroz / Selectivity of the herbicide nicosulfuron to the crops corn and rice
The tolerance of the crop corn to the sulfonylurea herbicides, sprayed in post emergence conditions, is variable according to the hybrids that is cultivated. Likewise, it has been observed differential tolerance to nicosulfuron among rice cultivars bred to tolerate the herbicides imazethapyr + imazapic (AHAS-tolerant). Therefore, this research was developed
Publicado em: 2009
-
20. Germinação, competitividade com a cultura da soja e resposta biológica a aplicações de glyphosate para plantas de trapoeraba (Commelina benghalensis L.) / Germination, competitiveness with the soybean crop and biologic response to glyphosate applications of Bengal dayflower plants (Commelina benghalensis L.)
In areas where the herbicide glyphosate is used frequently, populations of the weed Bengal dayflower (Commelina benghalensis) have been selected, due to the species tolerance to the action of that herbicide. This way, the use of alternative management is necessary, which are dependent upon deep knowledge on species biology; as well as, the efficient chemical
Publicado em: 2009
-
21. TOLERANCE OF IRRIGATED RICE TO CLOMAZONE HERBICIDE BY ACTION OF SAFENERS / TOLERÂNCIA DO ARROZ IRRIGADO AO HERBICIDA CLOMAZONE PELA AÇÃO DE PROTETORES DE PLÂNTULAS
O herbicida clomazone é utilizado para controle de poáceas na cultura do arroz irrigado. Porém, sua dose de registro para essa cultura não proporciona controle eficiente para determinadas espécies de plantas daninhas. Assim, há a necessidade de elevar sua dose para melhorar a eficácia sobre estas espécies. A seletividade do clomazone no arroz irrigad
Publicado em: 2009
-
22. Qualidade fisiolÃgica de sementes de soja convencional e RR associada ao conteÃdo de lignina / Physiological quality of conventional and RR soybean seeds associated with lignin content
In the latest crops, a strong and growing adherence of Brazilian farmers to RR transgenic soybean was found. Nevertheless, the hypothesis has been raised that these soybean cultivars are presenting differential hypotheses concerning the lignin contents in the plant, when compared with conventional cultivars. Such a variation could be occurring not only in th
Publicado em: 2009
-
23. Impacto do cultivo da soja resistente ao glyphosate sobre artrópodes e componentes de produção da cultura / Impact of soybean crops resistant to glyphosate on arthropods and components of plant yield
The global area planted with transgenic crops was 125 million hectares in 2008. Of this total, 53% was occupied by soybean modified for tolerance to glyphosate. The rapid acceptance of this technology is due to high efficiency, low cost and easy to implement. However, the abuse use of a broad spectrum herbicide can cause direct and indirect impacts. The dire
Publicado em: 2009
-
24. Suscetibilidade dos genótipos diplóides e tetraplóides de azevém (Lolium multiflorum Lam.) ao herbicida glyphosate / Susceptibility of diploid and tetraploid genotypes of Italian ryegrass (Lolium multiflorum Lam.) to the herbicide glyphosate
Genótipos de azevém (Lolium multiflorum Lam.) diplóides e tetraplóides são cultivados como forrageira na produção animal, no entanto, quando sistemas de produção que envolve o plantio direto são estabelecidos após o cultivo da forrageira é comum a dessecação com o herbicida glyphosate. Portanto, é importante conhecer se existe suscetibilidade
Publicado em: 2009