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A quantitative assay for Amaranthus palmeri identification
Pest Management Science, 2017AbstractBACKGROUNDAmaranthus palmeri recently has been brought into the Midwestern USA as a contaminant in Conservation Reserve Program seeding mixes. Rapid species screening is required to mitigate the risk of continued species movement.RESULTSMarkers were developed for A. palmeri‐specific nucleotide polymorphisms in the internal transcribed spacer of
Brent P Murphy +4 more
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Allelochemicals from palmer amaranth,Amaranthus palmeri S. Wats
Journal of Chemical Ecology, 1987The presence of Palmer amaranth (AMAPA) residues in the soil reduced fresh weight accumulation in onions and carrots and markedly decreased seedling field establishment of carrots. Solid-phase separation techniques were used to isolate fractions containing water-soluble organic compounds from AMAPA residues and soil amended with such residues.
J M, Bradow, W J, Connick
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Aneusomaty in glyphosate-resistant Amaranthus palmeri and its hybrid with Amaranthus tuberculatus
Genes & GenomicsGlyphosate [N-(phosphonomethyl) Glycine], commonly known as Roundup, is one of the most widely used herbicides for controlling crop weeds. However, its extensive use has led to the rapid evolution of glyphosate-resistant (GR) weed populations, often via amplification of the target gene EPSPS (5-enolpyruvylshikimate-3-phosphate synthase), sometimes ...
Yoonha Ju +3 more
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Winter cover crops influence Amaranthus palmeri establishment
Crop Protection, 2013Winter cover crops were evaluated for their effect on Amaranthus palmeri establishment and growth in cotton production. Cover crops examined included rye and four winter legumes: narrow-leaf lupine, crimson clover, Austrian winter pea, and cahaba vetch. Each legume was evaluated alone and in a mixture with rye.
Theodore M. Webster +3 more
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Ecophysiology of Amaranthus palmeri, a sonoran desert summer annual
Oecologia, 1983Basic photosynthetic and water relations characteristics in relation to soil water availability were investigated in Amaranthus palmeri, a common C4 summer annual of the Sonoran Desert. Under conditions of high soil water availability, photosynthetic capacity exceeded 70 μmol CO2 m-2 s-1 at a leaf temperature optimum of 42°C, and photosynthesis was not
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Deciphering the Mechanism of Glyphosate Resistance in Amaranthus palmeri by Cytogenomics.
Cytogenetic and genome research, 2022In agriculture, various chemicals are used to control the weeds. Out of which, glyphosate is an important herbicide invariably used in the cultivation of glyphosate-resistant crops to control weeds. Overuse of glyphosate results in the evolution of glyphosate-resistant weeds.
Dal-Hoe, Koo +3 more
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Mechanism of Resistance of Evolved Glyphosate-Resistant Palmer Amaranth (Amaranthus palmeri)
Journal of Agricultural and Food Chemistry, 2011Evolved glyphosate resistance in weedy species represents a challenge for the continued success and utility of glyphosate-resistant crops. Glyphosate functions by inhibiting the plant enzyme 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS). The resistance mechanism was determined in a population of glyphosate-resistant Palmer amaranth from Georgia ...
Gaines, T. +5 more
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Palmer amaranth (Amaranthus palmeri) Control in Soybeans [PDF]
, 2019 2808 ...
Scruggs, Eric +2 more
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Acclimation of Palmer Amaranth (Amaranthus palmeri) to Shading
Weed Science, 2008Experiments were conducted to investigate the acclimation of Palmer amaranth to shading. Plants were grown in the field beneath black shade cloths providing 47 and 87% shade and in full sunlight (no shading). All photosynthetic measurements were taken 4 wk after initiating the shade treatments.
Prashant Jha +4 more
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