Results 201 to 210 of about 6,270,003 (252)
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Pakistan journal of botany, 2020
Common ragweed (Ambrosia artemisiifolia), originally from North America, has had an effect on the ecological environment, social economy and human health in the invaded area.
Xiaoli Liu +5 more
semanticscholar +1 more source
Common ragweed (Ambrosia artemisiifolia), originally from North America, has had an effect on the ecological environment, social economy and human health in the invaded area.
Xiaoli Liu +5 more
semanticscholar +1 more source
Pollen Release in the Common Ragweed (Ambrosia artemisiifolia)
Botanical Gazette, 19591. A study of staminate flowers of common ragweed (Ambrosia artemisiifolia L.) revealed six more or less defined stages, which are described: (a) maturation of the flower; (b) extension of pollen sacs; (c) opening of pollen sacs and dropping of pollen clumps; (d) flotation of pollen by wind; (e) extension of the pistillodium; and (f) closure of the ...
D. E. Bianchi +2 more
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Identification of common allergenic structures in mugwort and ragweed pollen
Journal of Allergy and Clinical Immunology, 1998Identification of common allergenic structures in mugwort and ragweed pollen.Despite the rare occurrence of ragweed in Middle Europe, a surprisingly high number of patients allergic to mugwort, a frequently encountered weed, display IgE reactivity against ragweed pollen allergens.The aim of this study was to investigate whether the high prevalence of ...
R, Hirschwehr +9 more
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Common Ragweed (Ambrosia artemisiifolia) Seed Shattering in Wheat, Corn, and Soybean
Weed science, 2020Before any late-season weed control operations are planned to manage herbicide-resistant weeds, it is essential to evaluate the plants' maturity and shattering potential.
Marie-Josée Simard +3 more
semanticscholar +1 more source
, 2020
Owing to their potentially wide-ranging adverse effects, invasive species are a growing global problem. The common ragweed (Ambrosia artemisiifolia var. elatior (L.) Desc) is one of the most important invasive plants, necessitating management because of ...
H. Chung +3 more
semanticscholar +1 more source
Owing to their potentially wide-ranging adverse effects, invasive species are a growing global problem. The common ragweed (Ambrosia artemisiifolia var. elatior (L.) Desc) is one of the most important invasive plants, necessitating management because of ...
H. Chung +3 more
semanticscholar +1 more source
Weed Science, 1987
Common ragweed [Ambrosia artemisiifoliaL. # AMBEL (2n=36)] and giant ragweed[A. trifidaL. # AMBTR (2n=24)] are two abundant annuals that are widespread throughout northeastern North America. They are also the main cause of hay fever in Eastern Canada.
Gilles Vincent, Mario Cappadocia
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Common ragweed [Ambrosia artemisiifoliaL. # AMBEL (2n=36)] and giant ragweed[A. trifidaL. # AMBTR (2n=24)] are two abundant annuals that are widespread throughout northeastern North America. They are also the main cause of hay fever in Eastern Canada.
Gilles Vincent, Mario Cappadocia
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Journal of Natural Products, 2019
In Alzheimer's disease, amyloid-β (Aβ) accumulation in the brain results in neuronal cell death and is one of the major causes of dementia. Because the current therapeutic agents are not yet sufficiently effective or safe, there have been attempts to ...
Jin-Pyo An +7 more
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In Alzheimer's disease, amyloid-β (Aβ) accumulation in the brain results in neuronal cell death and is one of the major causes of dementia. Because the current therapeutic agents are not yet sufficiently effective or safe, there have been attempts to ...
Jin-Pyo An +7 more
semanticscholar +1 more source
Peculiarities of common ragweed (Ambrosia artemisiifolia L.) strategy
Agriculture, Ecosystems & Environment, 1991Abstract The strategy of common ragweed (Ambrosia artemissifolia L.) hhas been analysed by comparing its position in five phytocenoses of the steppe zone of the Ukraine: weedy-fallow, agrocenoses of sunflower (Helianthus annuus L.), wheat (Triticum aestivum L.), perennial grass mixture (Bromus inermis +Medicago sativa+Onobrychis viciifolia) and a ...
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Molecular characterization of atrazine resistance in common ragweed (Ambrosia artemisiifolia L.)
Journal of Applied Genetics, 2009Common ragweed (Ambrosia artemisiifolia L.) is the most frequent weed in the Carpathian Basin and is spreading fast in other parts of Europe. In recent years, besides the wild type, a mutant genotype resistant to atrazine herbicides has evolved and is now widespread in many areas.
A, Cseh, I, Cernak, J, Taller
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A mechanistic growth and development model of common ragweed
Weed Science, 2001Abstract A mechanistic model was constructed for common ragweed growth and development based on the generic plant model CROPSIM. Adaptations were made to CROPSIM's growth and development subroutines to enable common ragweed growth to be simulated. Data from field studies using a single-source common ragweed grown in monoculture and from the literature ...
William Deen +2 more
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