A5010413539- Weed Control and Herbicide Applications
- Pesticide and Herbicide Environmental Studies
- Allelopathy and phytotoxic interactions
- Growth and nutrition in plants
- Agronomic Practices and Intercropping Systems
- Soil Management and Crop Yield
- Soybean genetics and cultivation
- Cassava research and cyanide
- Plant tissue culture and regeneration
- Seed Germination and Physiology
- Plant Surface Properties and Treatments
- Plant and animal studies
- Turfgrass Adaptation and Management
- Crop Yield and Soil Fertility
- Banana Cultivation and Research
- Food composition and properties
- Agriculture, Soil, Plant Science
- Plant pathogens and resistance mechanisms
- Environmental and biological studies
- Pesticide Residue Analysis and Safety
- Potato Plant Research
- Orthopedic Infections and Treatments
- Food Quality and Safety Studies
- Soil Carbon and Nitrogen Dynamics
- Insect and Pesticide Research
BASF (United States)
2023
Instituto de Pesca
2023
Universidade Tecnológica Federal do Paraná
2012-2021
Background There is little information on how different soil cover systems influence the residual effect of pre-emergent herbicides used in soybean cultivation Brazil. Objective The objective was to compare persistence a Latosolic Dystrophic Red Nitosol presence or absence black oat straw surface. Methods were chlorimuron-ethyl (40.0 g ai ha-1), diclosulam (70.1 flumioxazin (100.0 ha-1) and saflufenacil (70.0 [...]
Plants from the genus ipomoea are among most important weeds in Brazil.The objective of this study was to determine impact different densities 2 species Ipomoea (I.grandifolia and I. purpurea) under environments (counties Pato Branco Renascença, Paraná state, Brazil) on soybean biometric variables, yield components crop loss. Field experiments distinct places were conducted a randomized block design, where 1 factor consisted 8 plant (0, 2, 4, 6, 8, 10, 15 20 plants•m -2 ), whereas other species.
The objective of this study was to determine the activity enzyme acetolactate synthase in biotypes wild poinsettia (Euphorbia heterophylla) with multiple resistance ALS- and Protox- inhibitors presence absence imazapyr, imazethapyr nicosulfuron. We conducted vitro assay ALS extracted from plants Vitorino, Bom Sucesso do Sul Medianeira (with resistance) a susceptible population In herbicides, showed higher affinity for substrate compared population. herbicides nicosulfuron had little effect...
ABSTRACT This study was conducted to evaluate the efficacy of joyweed (Alternanthera tenella) control and antagonistic or synergistic potentials saflufenacil herbicide applied alone tank mixed with paraquat, metribuzin clomazone. The experiment in a greenhouse completely randomized design four replications. Treatments consisted doses (0, 0.4, 0.7, 1.4, 2.1 2.8 g ha-1) isolated associated paraquat 1 3 ha-1), 38.4 105.6 clomazone 288 504 ha-1). Visual determined at 14 21 days after spraying...
The herbicide saflufenacil is a Protox inhibitor, with differential translocation mode in comparison to other herbicides the same mechanism of action. Selectivity, efficacy and safety environment are important characteristics for practical application agriculture. aim this study was determine tolerance ten dry bean cultivars saflufenacil, applied on preemergence. experiment conducted split plot randomized blocks design (IAPAR 81; IPR Tiziu, Corujinha; BRS Estilo; Talismã; Esplendor;...
Abstract Eragrostis tenuifolia is a weed species that gaining ground in Brazil. This occurs pastures, grasslands, crop fields, and roadsides. The objective of this study was to examine the effects different environmental factors on E. seed germination seedling emergence. optimum constant temperature for around 35-30°C. It also found 85% seeds germinated under 30/20°C alternate regime. Light appears have positive effect germination. No seedlings emerged when were buried 3 cm or deeper....
In the bean crop there are limited options of herbicides to control eudicotyledons weeds in pre-emergence and sulfentrazone presents potential be used a weed management program. The aim this study was determine tolerance large number Brazilian genotypes their relation with morphophysiological characteristics, associating it market classes, seed size center origin. It evaluated effect application (400 g a.i. ha−1) 40 genotypes, 36 which were common-bean (Phaseolus vulgaris), two cowpeas...
A presente revisão objetivou organizar e sintetizar o conhecimento disponível na literatura com respeito aos fatores ambientais que afetam a eficácia do glifosato. Foram abordados os seguintes aspectos: temperatura, umidade relativa ar, solo, irradiância, disponibilidade de nutrientes estado nutricional das plantas, ocorrência chuva após aplicação produto, assim como interação entre ambiente as características morfológicas fenológicas plantas. Verificou-se que, em geral, temperatura plantas...
Knowledge of factors that influence the germination process and their interactions allows estimating initial development a species in particular environment optimizing weed management decisions. The objectives this study were to evaluate effect environmental on growth Borreria latifolia, Galianthe chodatiana Richardia brasiliensis. Five trials conducted using completely random experimental design, factorial with five repetitions, each one evaluating effects temperature, irradiance, aluminum,...
As épocas utilizadas nos manejos de plantas cobertura podem prejudicar o desempenho das semeadoras e a produtividade culturas subsequentes, uma vez que propiciam diferentes condições quali quantitativas palhada. Nesse contexto, objetivo do trabalho foi verificar influência dessecação da aveia preta mecanismos sulcadores na plantabilidade, desenvolvimento cultura milho. O experimento conduzido no delineamento blocos ao acaso, em esquema fatorial 4 x 2, com repetições. Os tratamentos foram...
Ipomoea species are troublesome weeds in crop systems through Brazil. Drought stress typically reduces glyphosate efficacy by reducing the foliar uptake of herbicides and their translocation. Using both tolerant (GT) sensitive (GS) plants from grandifolia, I. indivisa purpurea species, this research aimed to (a) correlate amounts epicuticular wax tolerance (b) determine effect drought (DStress) on changes quantity chemical composition plant waxes. The dose that causes 50% inhibition growth...
O objetivo deste estudo foi selecionar espécies cucurbitáceas e quenopodiácea para serem usadas como plantas bioindicadoras da presença de saflufenacil no solo. experimento realizado em delineamento inteiramente casualizado com três repetições, bifatorial 8 x 5. primeiro fator constituído pelas concentrações (0; 2,45; 4,9; 9,8; 14,7; 19,6; 24,5 29,4 g i.a. ha-1) o segundo bioindicadoras: pepino, melancia, cabotiá, abobrinha híbrida Clarita (família Cucurbitaceae) beterraba Chenopodiaceae)....
The temporal selectivity of an herbicide refers to the time interval required between its soil application and crop sowing prevent damage development reproduction. Using field bioassays, this study aimed determine sensitivity saflufenacil when used with a crop. was conducted in two periods during 2011/2012 2012/2013 employed split-plot, randomized block experimental design. main plots were assigned seven intervals bean (0, 5, 10, 15, 25, 35, 50 days), subplots groups which absent or present...
Italian ryegrass (Lolium multiflorum L.) is an annual grass widely distributed in cultivated crops around the world. This weed causes significant yield reduction many and has developed herbicide resistance. The aim of this study was to develop a cohort-based stochastic population dynamics model that integrates both emergence (thermal time) dynamic models as tool simulate susceptible resistant populations L. under effects climate change. current scenario increase average air temperature by...
The use of pre-emergent herbicides in soybean crops is fundamental, among other reasons, to maintain a clean crop the initial stages, alter mechanisms, and consequently manage weed resistance.However, there considerable demand for information about efficiency selectivity systems with residual applied different modalities.This study evaluated doses singly or mixed tank on crops.The experiment was installed randomized block design 21 treatments four repetitions.The were composed weeded...
This study aimed to determine the negative impact of volunteer soybean plants on bean crop yield and tolerance genotypes herbicides ethoxysulfuron halosulfuron. To crops, a field experiment was developed, with sub-sub-plots, four replications. The main plots contained two cultivars, while sub-plots received sowing times (0 7 days after beans had been sown), sub-sub five plant densities (0, 5, 10, 20, 40 m-2). evaluated experiments in completely randomized design three They were arranged 28 x...
É necessário identificar novos herbicidas com amplo espectro de controle plantas infestantes para a cultura do feijão e, que possuam margem segurança adequada cultura. Os objetivos deste trabalho foram, avaliar o potencial uso herbicida ethoxysulfuron em meio feijão, assim como tolerância da cultivar IAC Imperador este herbicida. Um experimento foi conduzido campo delineamento blocos ao acaso parcelas subdivididas. Nas principais foram alocadas as doses (0; 10,4; 20,8; 41,6; 62,5 e 83,3 g...
Abstract Euphorbia heterophylla populations endued with resistance to both imazethapyr (an acetolactate synthase inhibitor) and fomesafen (a protoporphyrinogen oxidase were first detected in Brazil 2004. The objectives of this study determine the number dominance genes conferring E. establish types inheritance traits. It was hypothesised that two dominant nuclear control herbicide each gene confers a single herbicide. We crossed susceptible (S) multiple‐resistant (R) biotype generated F 1...
Eragrostis plana é uma das espécies alóctones com maior potencial invasivo nas áreas de pastagem natural do Sul da América Sul, devido suas características biológicas e ecológicas. Os objetivos desse trabalho foram quantificar os fenóis totais presentes no extrato aquoso extratos parte aérea incubada E. avaliar o seu efeito na germinação desenvolvimento plântulas três cultivadas. A quantidade total biomassa degradada foi aproximadamente 0,75 g L-1, que equivale a 1,35% massa seca plantas....
Weed management with herbicides requires favorable environmental conditions, that maximize efficiency, such as soil humidity and timing of application.The aim this study was to assess the effect application bentazon glyphosate on control activity antioxidant enzymes in Ipomoea grandifolia, under different conditions water availability.Two experiments, one for each herbicide (bentazon glyphosate), were conducted a factorial design four replicates.The first factor two rates (504 720 g i.a.ha...
Italian ryegrass ( Lolium multiflorum L.) has become notorious due to glyphosate resistance evolution. To study the demography of susceptible and glyphosate-resistant populations, several experiments were conducted in grower’s field evaluate seedling emergence, survival reproductive traits patterns three cohorts, effect density on seed production. Results showed that emergence is fast, under suitable environmental conditions, it can happen within 30-days. Lower plant was observed first two [...]