Browsing Agricultural Sciences by Subject "Resistência à pesticida"
Now showing items 1-20 of 28
-
Acaricides resistance in ticks : selection, diagnosis, mechanisms, and mitigation
(2022) [Journal article]Ticks are blood-feeding ecto-parasites that have a cosmopolitan distribution in tropical and subtropical regions of the world. Ticks cause economic losses in the form of reduced blood, meat and dairy products, as well as ... -
Análise de crescimento de biótipos de leiteira (Euphorbia heterophylla) resistentes e suscetível aos herbicidas inibidores da ALS
(2000) [Journal article]Foram conduzidos dois experimentos em condições de casa de vegetação, com o objetivo de analisar comparativamente o crescimento de três biótipos de leiteira (Euphorbia heterophylla - EPHHL) resistentes (R) (Passo Fundo, ... -
Análise do risco da ocorrência de biotipos de plantas daninhas resistentes aos herbicidas
(1998) [Journal article]A análise do risco da ocorrência de biotipos de plantas daninhas resistentes aos herbicidas dispõe de fundamentos teóricos adequados, porém é limitada pela falta de mais informações genéticas das espécies daninhas. O risco ... -
Atividade da acetolactato sintase de plantas de milho e de amendoim-bravo (Euphorbia heterophylla) resistentes e suscetíveis ao imazaquin
(2002) [Journal article]O amendoim-bravo, (Euphorbia heterophylla) é uma importante planta daninha em mais de 56 países, inclusive no Brasil, onde tem sido relatado o aparecimento de populações resistentes aos herbicidas inibidores da acetolactato ... -
ATP binding cassette transporter mediates both heme and pesticide detoxification in tick midgut cells
(2015) [Journal article]In ticks, the digestion of blood occurs intracellularly and proteolytic digestion of hemoglobin takes place in a dedicated type of lysosome, the digest vesicle, followed by transfer of the heme moiety of hemoglobin to a ... -
Control of barnyardgrass susceptible and resistant to imidazolinones at different temperature regimes before and after imazethapyr application
(2022) [Journal article]Environmental conditions can influence herbicide metabolism and interfere with the evolution of weed resistance. This study aimed to evaluate the effect of thermal regimes on the control of barnyardgrass (Echinochloa ... -
CRISPR/Cas9-mediated multi-allelic gene targeting in sugarcane confers herbicide tolerance
(2021) [Journal article]Sugarcane is the source of 80% of the sugar and 26% of the bioethanol produced globally. However, its complex, highly polyploid genome (2n = 100 – 120) impedes crop improvement. Here, we report efficient and reproducible ... -
Degradation enhancement as the mechanism of resistance to Imazethapyr in barnyardgrass
(2018) [Journal article]Non-target site (NTS) herbicide resistance by degradation enhancement is an increasing problem in several weeds around the world. In this study, the occurrence of degradation enhancement by cytochrome P450 monooxygenases ... -
O desenvolvimento de culturas tolerantes ao herbicida diclorofenoxiacetato : revisão de literatura
(2014) [Journal article]O composto diclorofenoxiacetato (2,4-D) foi o primeiro herbicida orgânico, sistêmico, seletivo e de aplicação em pós-emergência desenvolvido no mundo. Juntamente com a revolução verde, ele contribuiu para elevar a produção ... -
Editorial: Multiple herbicide-resistant weeds and non-target site resistance mechanisms : a global challenge for food production
(2021) [Journal article]Resumo não disponível -
Evolution of natural resistance to glyphosate in morning glory populations
(2017) [Journal article]Tolerance, also referred to as natural resistance, is a feature that exists in the plant even before herbicide application in an area. I. grandifolia, I. indivisa and I. purpurea are among the tolerant species most commonly ... -
A field survey of crop management practices and distribution of ALS resistant Euphorbia heterophylla in two states in southern Brazil
(2004) [Journal article]A resistência aos herbicidas foi relatada no Brasil há quase uma década. Uma das principais plantas daninhas com resistência aos herbicidas é a leiteira (Euphorbia heterophylla). Este trabalho foi planejado para avaliar a ... -
Hairy fleabane (Conyza bonarienis) response to saflufenacil in association with different formulations of glyphosate subjected to simulated rainfall
(2020) [Journal article]Saflufenacil has been used to control glyphosate resistant weeds, including hairy fleabane. There are several glyphosate formulations, which are related to different salts and adjuvants. Differences between these formulations ... -
Importance of sequential herbicide application in the control of Elephantopus mollis
(2021) [Journal article]Elephantopus mollis, popularly known as elephant paw or sussuaiá, is a species that has recently emerged as a weed affecting grain crops. This study aimed to evaluate the differential sensitivity of biotypes of E. mollis ... -
Insights into the role of transcriptional gene silencing in response to herbicide-Treatments in Arabidopsis thaliana
(2021) [Journal article]Herbicide resistance is broadly recognized as the adaptive evolution of weed populations to the intense selection pressure imposed by the herbicide applications. Here, we tested whether tran- scriptional gene silencing ... -
Mechanisms of acaricide resistance in ticks
(2023) [Journal article]Background: In several countries, including Brazil, the livestock industry plays a key role in the country’s economy. Brazil has the second largest bovine herd in the world and the biggest commercial herd. Ticks are an ... -
Rapid reduction of herbicide susceptibility in junglerice by recurrent selection with sublethal dose of herbicides and heat stress
(2020) [Journal article]Global climate change, specifically rising temperature, can alter the molecular physiology of weedy plants. These changes affect herbicide efficacy and weed management. This research aimed to investigate the combined effect ... -
Relação entre distância geográfica e variabilidade genética de uma população de Bidens spp. com resistência aos herbicidas inibidores de ALS
(2006) [Journal article]Espécies de plantas daninhas apresentam elevada variabilidade genética entre plantas dentro de uma população e exibem potencial para adaptar-se ao manejo realizado para o seu controle. Sementes de picão-preto foram coletadas ... -
Resistência ao glyphosate em biótipos de buva (Conyza spp.) das regiões oeste e sudoeste do Paraná
(2011) [Journal article]A resistência ao glyphosate em biótipos de Conyza spp. em áreas de lavoura das regiões oeste e sudoeste do Paraná causa grandes dificuldades ao manejo e, consequentemente, problemas econômicos e ambientais. Este experimento ...