A5082964072- Weed Control and Herbicide Applications
- Pesticide and Herbicide Environmental Studies
- Growth and nutrition in plants
- Soil Management and Crop Yield
- Legume Nitrogen Fixing Symbiosis
- Allelopathy and phytotoxic interactions
- Nematode management and characterization studies
- Banana Cultivation and Research
- Pharmaceutical and Antibiotic Environmental Impacts
- Plant Stress Responses and Tolerance
- Soil Carbon and Nitrogen Dynamics
- Polymer-Based Agricultural Enhancements
- Chromosomal and Genetic Variations
- Soybean genetics and cultivation
- Plant Pathogens and Fungal Diseases
- Plant tissue culture and regeneration
- Agricultural and Food Sciences
- Plant Disease Management Techniques
Colorado State University
2022-2025
Universidade Federal Rural do Rio de Janeiro
2019-2023
Universidade Federal do Rio de Janeiro
2020
Abstract Conyza sumatrensis and bonariensis are two important hexaploid weed species that impact crop production systems across the globe. Here, we report reference genome assemblies for both species. The sequenced accession of C. is resistant to multiple herbicides was collected from state Paraná in Brazil, while California, USA. Genomic long read data used along with optical mapping assemble a single haplome at chromosome-level contiguity. same approach chromatin contact phase haplotypes...
Abstract Auxin‐mimic herbicides chemically mimic the phytohormone indole‐3‐acetic‐acid (IAA). Within auxin‐mimic herbicide class, fluroxypyr has been extensively used to control kochia ( Bassia scoparia ). A 2014 field survey for resistance in populations across Colorado identified a putative fluroxypyr‐resistant (Flur‐R) population that was assessed response and dicamba (auxin‐mimics), atrazine (photosystem II inhibitor), glyphosate (EPSPS chlorsulfuron (acetolactate synthase inhibitor)....
Resistance to 2,4-Dichlorophenoxyacetic acid (2,4-D) has been reported in several weed species since the 1950s; however, a biotype of Conyza sumatrensis showing novel physiology rapid response minutes after herbicide application was 2017. The objective this research investigate mechanisms resistance and identify transcripts associated with physiological C. 2,4-D herbicide.
Abstract Sourgrass ( Digitaria insularis L.) and fleabane Conyza spp. constitute a major challenge to weed management in soybean [ Glycine max (L.) Merr.] production systems Brazil, especially when both are resistant glyphosate present concurrently. The aim of this study was evaluate the interaction haloxyfop‐P‐methyl [methyl(R)‐2{4‐{3‐chloro‐5(trifluoromethyl)‐2‐pyridyloxy] phenoxy} propanoate] 2,4‐D [2,4‐Dichlorophenoxyacetic acid‐N‐methylmethanamine] control sourgrass at three four...
Abstract In this work, we evaluated the short time-induced oxidative stress–mediated rapid metabolic and physiological responses of resistant susceptible Sumatran fleabane [ Conyza sumatrensis (Retz.) E. Walker; syn.: Erigeron Retz.] to 2,4-D herbicide. Under fixed conditions (25 C 65 ± 5% relative humidity), assayed injury symptoms, chlorophyll a fluorescence, antioxidative systems biotypes both (1,005 g ae ha −1 ). 15 versus 25 temperatures light dark conditions, damage was on plants that...
Abstract Background Early detection of herbicide resistance in weeds is crucial for successful implementation integrated weed management. We conducted a survey the winter annual grasses feral rye ( Secale cereale ), downy brome Bromus tectorum and jointed goatgrass Aegilops cylindrica ) from Colorado wheat production areas to imazamox quizalofop. Results All samples were susceptible imazamox. Out 314 field collected samples, we identified three populations (named A, B, C) that resistant....
Sugarcane straw may work as a physical barrier for pre-emergent herbicides and interact with their molecules, increasing sorption process. Adjuvants change dynamics in the environment improve efficiency weed control. The objective of this was to evaluate desorption pendimethalin alone mixture adjuvant soil sugarcane straw. Sorption experiments were performed using vegetable oil herbicide solution concentrations ranging between 2.5 40 μg mL−1 both conditions. distribution coefficient (Kd)...
Abstract Herbicide-resistant weed management is one of the greatest agricultural challenges in crop production. Thus, quick identification herbicide-resistant weeds extremely important for management. This study aimed to evaluate resistance PSI-inhibiting herbicides (diquat) and physiological response paraquat application Sumatran fleabane [ Conyza sumatrensis (Retz.) E. Walker; syn.: Erigeron Retz.]. The research was conducted with two C. biotypes, susceptible other multiple from five...
Abstract A pre-launch survey of broadleaf weeds was conducted to predict the weed management efficacy a novel genetically engineered sugar beet with resistance traits for glyphosate, dicamba, and glufosinate. We targeted problematic species prevalent in system, including kochia, common lambsquarters, Palmer amaranth, redroot pigweed across areas Colorado, Nebraska, Wyoming. The results revealed that significant percentage kochia populations Wyoming exhibited glyphosate (94%, 98%, 75%,...
A correção do pH de solos ácidos é suma importância para o aumento da produtividade das culturas, sendo a calagem uma práticas mais usuais essa correção. Nos estados região sul Brasil, recomendação tem como base determinação solo com emprego solução tampão SMP. Esse método vem utilizado nesses devido sua praticidade e aplicação cálculo calagem. Entretanto, preciso que haja regionalização desta estimativa as diferentes características físicas, químicas mineralógicas dos solos. O objetivo...
ABSTRACT The long residual period of pre-emergent herbicides can interfere with successor crops, causing a phenomenon named carryover. This study evaluated the effect imazapyr + imazapic on cotton crop grown in succession to soybean. experiment was conducted between September 2016 and March 2017, randomized block design 4 replicates, where treatments were four doses imazapic, 75, 150, 225 300 g a.i. ha-1, control. analyzed variables chlorophyll fluorescence, shoot height, root length volume,...
Abstract Auxin-mimic herbicides chemically mimic the phytohormone indole-3-acetic-acid (IAA). Within auxin-mimic herbicide class, fluroxypyr has been extensively used to control an agronomically problematic Great Plains tumbleweed, kochia ( Bassia scoparia ). A 2014 field survey for resistance in populations across Colorado identified a putative resistant population that was assessed response five different representing four modes of action. These included and dicamba (auxin-mimics),...