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View article: Effect of Row Spacing in the Period Prior to Weed Interference in Peanut Cultivation Under Azorean Conditions
Effect of Row Spacing in the Period Prior to Weed Interference in Peanut Cultivation Under Azorean Conditions Open
Peanut cultivation currently plays a minor role in Portuguese agriculture, despite the country’s favorable soil and climatic conditions. In the Azores archipelago, where agriculture is a key economic activity, peanut production has recentl…
View article: Effect of Row Spacing in the Period Prior to Weed Interference in Peanut Cultivation Under Azorean Conditions
Effect of Row Spacing in the Period Prior to Weed Interference in Peanut Cultivation Under Azorean Conditions Open
Peanut cultivation currently plays a minor role in Portuguese agriculture, despite the country’s favorable soil and climatic conditions. In the Azores archipelago, where agriculture is a key economic activity, peanut production has recentl…
View article: Asp376Glu Mutation and Enhanced Metabolism Controlling the Resistance to ALS-Inhibiting Herbicides in Ixophorus unisetus (J. Presl) Schltdl from the Bajio, Mexico
Asp376Glu Mutation and Enhanced Metabolism Controlling the Resistance to ALS-Inhibiting Herbicides in Ixophorus unisetus (J. Presl) Schltdl from the Bajio, Mexico Open
A study was carried out to determine the ALS (acetolactate synthase)-inhibitor herbicide resistance in the Mexican grass Ixophorus unisetus, a troublesome weed in corn crops in Mexico. First, the resistance was confirmed in field screening…
View article: Convergent Adaptation of Multiple Herbicide Resistance to Auxin Mimics and ALS- and EPSPS-Inhibitors in Brassica rapa from North and South America
Convergent Adaptation of Multiple Herbicide Resistance to Auxin Mimics and ALS- and EPSPS-Inhibitors in Brassica rapa from North and South America Open
Herbicide-resistant weeds have been identified and recorded on every continent where croplands are available. Despite the diversity of weed communities, it is of interest how selection has led to the same consequences in distant regions. B…
View article: Filago pyramidata Tolerant to ALS-Inhibiting Herbicides: A New Invasive Weed in Olive Groves of Southern Spain
Filago pyramidata Tolerant to ALS-Inhibiting Herbicides: A New Invasive Weed in Olive Groves of Southern Spain Open
Weeds that usually grow in non-agricultural areas have become increasingly common invading perennial crops. Species of the genus Filago, in addition to invading Spanish olive groves, have developed certain levels of natural tolerance to th…
View article: Different Non-Target Site Mechanisms Endow Different Glyphosate Susceptibility in Avena Species from Spain
Different Non-Target Site Mechanisms Endow Different Glyphosate Susceptibility in Avena Species from Spain Open
In recent decades, cereal agriculture across main producing areas in Spain has progressively adopted direct sowing, associated with an increased use of herbicides in pre-sowing. Weedy species from genus Avena have been observed after the a…
View article: An Asp376Glu substitution in ALS gene and enhanced metabolism confers high tribenuron-methyl resistance in Sinapis alba
An Asp376Glu substitution in ALS gene and enhanced metabolism confers high tribenuron-methyl resistance in Sinapis alba Open
Acetolactate synthase (ALS) inhibiting herbicides (group 2) have been widely applied for the last 20 years to control Sinapis alba in cereal crops from southern Spain. In 2008, a tribenuron-methyl (TM) resistant (R) S. alba population was …
View article: Tribenuron-methyl metabolism and the rare Pro197Phe double mutation together with 2,4-D metabolism and reduced absorption can evolve in Papaver rhoeas with multiple and cross herbicide resistance to ALS inhibitors and auxin mimics
Tribenuron-methyl metabolism and the rare Pro197Phe double mutation together with 2,4-D metabolism and reduced absorption can evolve in Papaver rhoeas with multiple and cross herbicide resistance to ALS inhibitors and auxin mimics Open
Multiple resistance mechanisms to ALS inhibitors and auxin mimics in two Papaver rhoeas populations were investigated in wheat fields from Portugal. Dose-response trials, also with malathion (a cytochrome P450 inhibitor), cross-resistance …
View article: Current Status of Herbicide Resistance in the Iberian Peninsula: Future Trends and Challenges
Current Status of Herbicide Resistance in the Iberian Peninsula: Future Trends and Challenges Open
The evolution of herbicide resistance in weeds has emerged as one of the most serious threats to sustainable food production systems, which necessitates the evaluation of herbicides to determine their efficacy. The first herbicide resistan…
View article: QUALITY OF PROCESSING TOMATO FRUITS IN COMPETITION WITH Solanum americanum
QUALITY OF PROCESSING TOMATO FRUITS IN COMPETITION WITH Solanum americanum Open
Five experiments were conducted to evaluate the hypothesis that Solanum americanum density and time of coexistence affect the quality of processing tomato fruit. The tomato crop was established using either the direct drilling or the trans…
View article: Genetic diversity and population structure of Cynara cardunculus L. in southern Portugal
Genetic diversity and population structure of Cynara cardunculus L. in southern Portugal Open
Cynara cardunculus L. is a cardoon species native to the Mediterranean region, which is composed of three botanical taxa, each having distinct biological characteristics. The aim of this study was to examine wild populations of C . cardunc…
View article: Distribution of Glyphosate-Resistance in Echinochloa crus-galli Across Agriculture Areas in the Iberian Peninsula
Distribution of Glyphosate-Resistance in Echinochloa crus-galli Across Agriculture Areas in the Iberian Peninsula Open
The levels of resistance to glyphosate of 13 barnyard grass ( Echinochloa crus-galli ) populations harvested across different agriculture areas in the Southern Iberian Peninsula were determined in greenhouse and laboratory experiments. Shi…
View article: The Triple Amino Acid Substitution TAP-IVS in the EPSPS Gene Confers High Glyphosate Resistance to the Superweed Amaranthus hybridus
The Triple Amino Acid Substitution TAP-IVS in the EPSPS Gene Confers High Glyphosate Resistance to the Superweed Amaranthus hybridus Open
The introduction of glyphosate-resistant (GR) crops revolutionized weed management; however, the improper use of this technology has selected for a wide range of weeds resistant to glyphosate, referred to as superweeds. We characterized th…
View article: Selection for glyphosate resistance in <i>Conyza</i> spp. occurring in the railway network of southern Spain
Selection for glyphosate resistance in <i>Conyza</i> spp. occurring in the railway network of southern Spain Open
Conyza spp. are broadleaf weeds that occur in many crops but are also common in non-crop systems such as roadsides and railways. Conyza have selected for glyphosate resistance along railway tracks in southern Spain due to the misuse of thi…
View article: Stacked traits conferring multiple resistance to imazamox and glufosinate in soft wheat
Stacked traits conferring multiple resistance to imazamox and glufosinate in soft wheat Open
BACKGROUND Conventional crossing of soft wheat cultivars resistant to imazamox and glufosinate resulted in two (Rados and Helter) lines resistant to both herbicides. Stacked traits conferring this dual herbicide resistance in these lines, …
View article: Evaluation of weed flora changes in Portugal in a 10 year basis
Evaluation of weed flora changes in Portugal in a 10 year basis Open
Submitted by Helena Mascarenhas ([email protected]) on 2017-04-26T15:00:52Z\nNo. of bitstreams: 0
View article: Weed management in vineyards, olive groves and orchards.
Weed management in vineyards, olive groves and orchards. Open
A implementação de culturas perenes, em Portugal, sofreu nas últimas décadas grandes alterações quer na instalação da cultura quer nas técnicas de gestão. Este artigo revê a gestão das infestantes nas principais culturas perenes em Portuga…