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Relevant bibliographies by topics / Amaranthus retroflexus

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Academic literature on the topic 'Amaranthus retroflexus'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 June 2025

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Journal articles on the topic "Amaranthus retroflexus"

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Hutsko, K. I. "AMARANTHUS AS A SOURCE OF POLYPHENOLIC COMPOUNDS AND FLAVONOIDS FOR USE IN MEDICINE." Biotechnologia Acta 17, no. 2 (April 30, 2024): 46–48. http://dx.doi.org/10.15407/biotech17.02.046.

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Amaranth is used as a medicinal plant with antioxidant, hemostatic, and wound-healing properties. The aim of the research is the quantitative determination of polyphenolic compounds and flavonoids in ethanolic extracts of amaranth seeds of the "Lera" and "Ultra" varieties and leaves Amaranthus retroflexus. Methods. Extracts were obtained by infusion for 7 days in 70% and 80% ethanol. Quantitative determination of secondary metabolites was conducted by spectrophotometric methods. Results. The largest amount of polyphenolic compounds was found in the ethanolic extract of Amaranthus retroflexus leaves - 0.228 mg/ml. More polyphenols were found in the ethanolic extract of amaranth seeds of the "Lera" variety than in the extract of amaranth seeds of the "Ultra" variety. In the extract of leaves of Amaranthus retroflexus, 2.1 x 10-4 mg/ml of flavonoids were found, in extracts of amaranth seeds were found from 0.7 x 10-5 mg/ml to 1.55 x 10-5 mg/ml of flavonoids. Conclusion. The ethanolic extract of the leaves of Amaranthus retroflexus contains a greater number of investigated secondary metabolites than the extracts of amaranth seeds of the "Lera" and "Ultra" varieties. The ethanol extract of amaranth seeds of the "Lera" variety contains more polyphenolic compounds and flavonoids than the ethanol extract of amaranth seeds of the "Ultra" variety.

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Mitich, Larry W. "Redroot Pigweed (Amaranthus retroflexus)." Weed Technology 11, no. 1 (March 1997): 199–202. http://dx.doi.org/10.1017/s0890037x00041579.

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“… To the ground, With solemn adoration, down they cast Their crowns, inwove with amaranth and gold. Immortal amaranth, a flower which once In Paradise, fast by the tree of life, Began to bloom.”–John Milton (1608–1676), Paradise LostRedroot pigweed (Amaranthus retroflexus L.), one of the New World's major weeds, was described in 1753 by Carolus Linnaeus in Species Plantarum. Over three decades later (1789), the genu wa placed in Amaranthaceae by Antoine Laurent de Jussieu (1748–1836) (Britton and Brown 1898). Amaranthaceae belongs to Centrospermae, a group of familie that contain betalain pigments instead of the anthocyanins found in most other angiosperms; it is closely related to Chenopodiaceae (Heywood 1993).

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Hutsko, K. I., та R. O. Petrina. "Аmaranth as a source of secondary metabolites with potential wound-healing activity". Chemistry, Technology and Application of Substances 7, № 2 (1 грудня 2024): 92–99. https://doi.org/10.23939/ctas2024.02.092.

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Amaranth is a multi-purpose crop, known for its wound-healing properties. Amaranth leaves and seeds contain polyphenols and flavonoids that improve wound healing. Ethanol extracts of amaranth seeds of “Lera” and “Ultra” varieties and ethanol extract of leafs Amaranthus retroflexus were obtained. Determination of the content of polyphenolic compounds in the extracts was conducted by the spectrophotometric method with the Folin-Checolteau reagent. The number of flavonoids in the extracts was determined by the spectrophotometric method using aluminum chloride.. The most polyphenolic compounds and flavonoids were found in the extract of leafs Amaranthus retroflexus. More polyphenols and flavonoids were found in the amaranth seed extract of the “Lera” variety than in the extract of the “Ultra” variety.

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Božić, Dragana. "Amaranthus retroflexus L.: Redroot pigweed." Acta herbologica 27, no. 1 (2018): 5–19. http://dx.doi.org/10.5937/actaherb1801005b.

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Moran, Patrick J., and Allan T. Showler. "Phomopsis amaranthicola and Microsphaeropsis amaranthi Symptoms on Amaranthus spp. Under South Texas Conditions." Plant Disease 91, no. 12 (December 2007): 1638–46. http://dx.doi.org/10.1094/pdis-91-12-1638.

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Temperature, humidity, weed species and age, and inducible responses in the host are factors that could limit the efficacy of fungal bioherbicides. The influences of these factors on the efficacy of the fungal bioherbicides Phomopsis amaranthicola and Microsphaeropsis amaranthi against Palmer amaranth (Amaranthus palmeri), smooth pigweed (Amaranthus hybridus), and redroot pigweed (Amaranthus retroflexus) were investigated in greenhouse and field studies under south Texas conditions. Despite plants being given an initial dew period, the bioherbicides, applied individually or in combination, did not cause mortality on any pigweed species in greenhouse or field environments. In greenhouse experiments, fewer than 5% of the leaves in six- to eight-leaf A. palmeri plants developed necrotic lesions within 2 weeks after bioherbicide treatment and only 8% or fewer of the plants developed stem lesions. Disease incidence was significantly higher in A. hybridus and A. retroflexus, with as much as 94% of leaves developing necrosis and 95% of the plants having stem lesions. New leaf production was reduced by biobherbicide treatment in A. hybridus. Combined-pathogen inoculation caused leaf and stem lesions on mature (13 to 36 leaves per plant) A. hybridus and A. retroflexus. Summer and fall field inoculations with M. amaranthi on A. hybridus and A. palmeri produced disease incidence levels similar to or higher than those in greenhouse tests. Infection of A. palmeri by P. amaranthicola increased the peroxidase activity level nearly twofold compared with the controls. Neither pathogen influenced leaf free amino acid content. The high temperatures and low humidity of south Texas and interspecific variation in resistance, possibly linked to peroxidase induction, limited the efficacy of these bioherbicides.

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Khan, Asad M., Ahmadreza Mobli, Jeff A. Werth, and Bhagirath S. Chauhan. "Germination and seed persistence of Amaranthus retroflexus and Amaranthus viridis: Two emerging weeds in Australian cotton and other summer crops." PLOS ONE 17, no. 2 (February 9, 2022): e0263798. http://dx.doi.org/10.1371/journal.pone.0263798.

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Redroot pigweed (Amaranthus retroflexus L.) and slender amaranth (Amaranthus viridis L.) are becoming problematic weeds in summer crops, including cotton in Australia. A series of laboratory and field experiments were performed to examine the germination ecology, and seed persistence of two populations of A. retroflexus and A. viridis collected from the Goondiwindi and Gatton regions of Australia. Both populations of A. retroflexus and A. viridis behaved similarly to different environmental conditions. Initial dormancy was observed in fresh seeds of both species; however, germination reached maximum after an after-ripening period of two months at room temperature. Light was not a mandatory prerequisite for germination of both species as they could germinate under complete darkness. Although both species showed very low germination at the alternating day/night temperature of 15/5 C, these species germinated more than 40% between ranges of 25/15 C to 35/25 C. Maximum germination of A. retroflexus (93%) and A. viridis (86%) was observed at 35/25 C and 30/20, respectively. Germination of A. retroflexus and A. viridis was completely inhibited at osmotic potentials of -1.0 and -0.6 MPa, respectively. No germination was observed in both species at the sodium chloride concentration of 200 mM. A. retroflexus seedling emergence (87%) was maximum from the seeds buried at 1 cm while the maximum germination of A. viridis (72%) was observed at the soil surface. No seedling emergence was observed from a burial depth of 8 cm for both species. In both species, seed persistence increased with increasing burial depth. At 24 months after seed placement, seed depletion ranged from 75% (10 cm depth) to 94% (soil surface) for A. retroflexus, and ranged from 79% to 94% for A. viridis, respectively. Information gained from this study will contribute to an integrated control programs for A. retroflexus and A. viridis.

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Song, Weifeng, Qinghui Wei, Zhenghao Shi, Yaqing Pan, Zhiyong Li, and Fangyuan Wang. "Integrating transcriptome and metabolomics revealed the key metabolic pathway response of Amaranthus retroflexus L. to the resistance to fomesafen." PLOS ONE 20, no. 2 (February 13, 2025): e0312198. https://doi.org/10.1371/journal.pone.0312198.

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Background Amaranthus retroflexus L. is one of the main broad-leaved weeds in soybean fields in Heilongjiang Province and is an important factor affecting soybean yield. It is becoming increasingly resistant to herbicides. However, studies on the transcriptome level and the molecular mechanism of secondary metabolite accumulation of resistant varieties of Amaranthus retroflexus L. have not been reported. Therefore, comprehensive analysis of transcriptome and metabolome is needed to determine the key metabolic pathways and key genes of Amaranthus retroflexus L. Results The biosynthetic pathway of resistance to Amaranthus retroflexus L. was studied by transcriptome and metabolome analysis. Transcriptome analysis showed that in the three comparison groups, compared with untreated (CK) group, there were 979 Differentially expressed genes (DEGs) in resistant (RY) group and 15731 DEGs in sensitive (SY) group; The RY group had 13822 DEGs compared to the SY group. Fluorescent quantitative PCR detection found that two gene tables related to Cytochrome P450 Monooxygenase (P450), Glutathione S-transferase (GST) and other enzyme systems such as peroxidase (POD), polyphenol oxidase (PPO), Catalase (CAT) and Superoxide dismutase (SOD) were significantly reached. Using Venn analysis for metabolomics analysis (VIP>1 and P<0.05), 239 Differentially expressed metabolites (DEMs) were selected. There are 15 common DEMs in the three control groups, and 8 unique DEMs in the RY group. This study detected 76 cases of DEMs and 139 cases of DEMs in the CK, RY, and SY control groups, respectively. More metabolites were detected in the CK and SY control groups. This viewpoint provides evidence for the genetic and metabolic differences between resistance and sensitivity in Amaranthus retroflexus L.. The KEGG in the RY vs SY group is mainly enriched in cysteine and methlonine metabololism, glycine, serine and threonine metabololism, aminoacyl-tRNA biosynthesis, biosynthesis of variant plant secondary metabololites, biosynthesis of amino acids, arginine and proline metabololism, biosynthesis of cofactors. Therefore, the resistance mechanism of Amaranthus retroflexus L. may be mainly generated by the metabolic pathway mechanism of amino acids. Conclusion In this study, DEGs and DEMs were identified by de novo Transcriptome assembly and metabonomic analysis, and an important metabolic pathway of resistance was found. It was found that the resistance mechanism of Amaranthus retroflexus L. might be mainly produced by amino acid metabolic pathway. This discovery laid the foundation for further research on the molecular mechanism and functional characteristics of the resistance of Amaranthus retroflexus L..

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Qian, Guangtao, Zhicai Wang, Lei Zhang, Fangfei Xu, Baohui Wang, Dandan Li, and Yanping Chen. "Chemical Compositions of Amaranthus retroflexus." Chemistry of Natural Compounds 52, no. 6 (October 24, 2016): 982–85. http://dx.doi.org/10.1007/s10600-016-1841-y.

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Karaeva, Julia, Svetlana Timofeeva, Marat Gilfanov, Marina Slobozhaninova, Olga Sidorkina, Ekaterina Luchkina, Vladimir Panchenko, and Vadim Bolshev. "Exploring the Prospective of Weed Amaranthus retroflexus for Biofuel Production through Pyrolysis." Agriculture 13, no. 3 (March 15, 2023): 687. http://dx.doi.org/10.3390/agriculture13030687.

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Amaranthus retroflexus or redroot pigweed is a second generation lignocellulosic fuel. Each biomass sample (leaves, inflorescences and stems) was pyrolyzed in a lab-scale furnace, in a nitrogen atmosphere under non-isothermal conditions at heating rates of 10 °C/min until the furnace temperature reached 550 °C. The pyrolysis characteristics of the three major components were also studied through thermogravimetric analysis. The thermal decomposition of the biomass samples is similar to the process of pyrolysis of lignocellulosic materials and proceeds in three main stages: dehydration, devolatilization, and carbonation. The highest bio-oil yield was obtained for inflorescences (55%) and leaves (45%). Gas chromatography—mass spectrometry analysis was carried out for oil fractions of the pyrolysis liquid from Amaranthus retroflexus. The composition of the pyrolysis oil fraction from the leaves had an overbearing aliphatic hydrocarbon nature whereas the oil fraction from inflorescences and stems was composed mainly of oxygen-containing components. The use of Amaranthus retroflexus biochars can lead to slag formation in power equipment, so it is advisable to use them to produce composite fuel, for example, mixed with coal. The results would help to better understand the thermal behavior of Amaranthus retroflexus biomass and its utilization for fuels or chemicals.

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Lacatus, Mihaela, Patricia Tarkanyi, Luminita Pirvulescu, Tiberiu Iancu, Ioan Ladislau Caba, Nicolae-Valentin Vlăduț, Aurica Breica Borozan, Simion Alda, and Despina-Maria Bordean. "Nutrient Status and Antioxidant Activity of the Invasive Amaranthus retroflexus L." Sustainability 17, no. 11 (June 3, 2025): 5141. https://doi.org/10.3390/su17115141.

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Amaranthus retroflexus L. is widely regarded as one of the world’s most invasive weeds, often linked to significant agricultural losses due to its resilience and herbicide resistance. However, unlike other amaranth species already recognized for their health benefits, A. retroflexus remains largely overlooked as a potential nutritional and pharmacological resource. This study investigates whether this abundantly growing plant could be repurposed as sustainable food. We focused on three main questions: Can weed be transformed into a food source? Does A. retroflexus offer comparable nutritional value as its relatives? And how can it be harvested safely for human use? Mineral content, total antioxidant capacity, and polyphenol content were analyzed across different plant parts. Results revealed high levels of essential minerals, antioxidants, and other bioactive compounds, suggesting strong potential as a nutrient-dense food. However, traces of heavy metals—such as lead, cadmium, and arsenic—were detected in some samples, emphasizing the need for controlled cultivation. Overall, the findings support the safe and sustainable valorization of A. retroflexus in food and pharmaceutical applications.

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Dissertations / Theses on the topic "Amaranthus retroflexus"

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Ferguson, Gabrielle Mary. "ALS-inhibitor resistance in populations of Amaranthus powellii S. Wats. and Amaranthus retroflexus L." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0023/MQ51062.pdf.

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Ghorbani, Reza. "Biological control of the weed Amaranthus retroflexus with fungal pathogens." Thesis, University of Aberdeen, 2000. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU602046.

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Amaranthus retroflexus is a common annual weed world-wide and causes substantial yield reduction in many crops. In this research program three main objectives were fulfilled: firstly the effect of certain environmental parameters on germination and emergence of A. retroflexus collected from Iran were determined; secondly, potential pathogen strains as biological control agents for A. retroflexus were identified; and finally the activity of a candidate biological control agent against the target weed under various environmental conditions and with different formulation were evaluated. Results of several experiments showed that under controlled conditions A. retroflexus seeds are able to germinate at a wide range of temperatures, water potentials, burial depths of seeds and soil types. However, the degree of success of germination and establishment of this plant were influenced by temperature, water potential, planting depth, soil type and interactions between these factors. A. retroflexus growth as favoured by high temperature (25-35C), high water availability (0 to -1 bar), shallow burial (0.5-1 cm) and lighter soil types. The objective of the second section of this project was to find a potential pathogen as a biological control agent for A. retroflexus. Initially a culture collection of Amaranthus pathogens, collected throughout Europe and Iran, were screened. The final results in pathogenicity tests showed that A. altemata strains 423, 780 and 930 and Aposphaeria amaranthi showed the greatest pathogenicity against A. retroflexus. The fungi of A. alternata strain 423 and Aposphaeria strain were able to control 100% of A. retroflexus plants under certain environmental conditions. Ascochyta caulina and an unidentified fungal strain 5-1 (collected from Iran) caused less disease development. These results clearly indicated the potential of A. alternata and Aposphaeria amaranthi as mycoherbicides. A. alternata strain 423 was shown to be more pathogenic than strains 780 and 930. A spore concentration of 107 spores ml-1 without application of oil emulsion or 106 spores ml-1 with oil formulation was required for good disease development. A. alternata species demonstrates potential for controlling A. retroflexus only when 16 hours of high humidity/leaf wetness were provided after spore application. Also for maximum activity of A. alternata, it had to be applied at 2-4-leaf growth stages of the weed seedlings. The optimum dew temperatures for 100% mortality were between 20 and 25C. The post inoculum temperature for giving maximum disease development was between 20 and 30C. Finally, for maximum control of A. retroflexus by A. alternata there should be no delay in the occurrence of dew after inoculation. Formulation of A. alternata spores in the rape-seed oil emulsion significantly increased disease development and decreased plant vigour and dry weight of A. retroflexus. This formulation caused a reduction in minimum spore density required in the spore suspensions and the length of dew period required for disease development. However, formulations of A. alternata, need to be further improved to reduce the requirement for a long dew period. Application of granules at emergence stage gave better control of A. retroflexus plants than application at the 4-leaf stage or application simultaneously with planting. Because A. alternata granule applications needed to be applied at very high levels, it is unlikely to be economically liable. Both formulations of Alternaria (spore suspensions (liquid) and granule (solid)) caused no serious infection in sugar-beet, maize and wheat plants.

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Omami, Elizabeth Nabwile, of Western Sydney Hawkesbury University, of Agriculture Horticulture and Social Ecology Faculty, and School of Horticulture. "Amaranthus retroflexus seed dormancy and germination responses to environmental factors and chemical stimulants." THESIS_FAHSE_HOR_Omami_E.xml, 1993. http://handle.uws.edu.au:8081/1959.7/66.

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A large number of weed seeds in the soil persist because of seed dormancy, and depletion of the seed bank through manipulation of seed dormancy has been suggested as one of the goals in weed control. This study was designed to investigate some of the factors which control dormancy and germination in Amaranthus retroflexus seeds. Germination studies were conducted at different temperatures, and either in continuous white light or in the dark. Higher temperatures increased germination and, although light interacted with temperature, its effect on germination varied with the temperature. In an attempt to determine changes in dormancy during dry storage, two lots of seeds were stored dry at different temperatures. Loss in dormancy increased with an increase in storage temperature and duration, but the time required for maximum germination varied according to the seedlot. Seeds germinated to higher percentages at high temperatures, but storage at higher temperatures and for prolonged duration resulted in seeds gaining the ability to germinate at lower temperatures. Changes in dormancy under field conditions were also examined. Seeds were buried at different depths and for different durations and they all lost viability with time, but this loss was greater in surface-sown and shallowly buried seeds. Dormancy was broken during cold periods and induced as warmer periods progressed. The effects of chemical stimulants on dormancy and germination were investigated. The response of seeds to ethephon and nitrate were assessed at different temperatures either at continuous white light or in the dark. Germination increased with the concentration of the chemicals, and a greater response was observed at lower temperatures. The response to light varied depending on temperature<br>Master of Science (Hons)

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Nurse, Robert Edward. "Predispersal weed seed predation in soybean fields (Amaranthus retroflexus, Chenopodium album, Coleophora lineapuvella)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0019/MQ55699.pdf.

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Omami, Elizabeth Nabwile. "Amaranthus retroflexus seed dormancy and germination responses to environmental factors and chemical stimulants." Thesis, [S.l. : s.n.], 1993. http://handle.uws.edu.au:8081/1959.7/66.

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A large number of weed seeds in the soil persist because of seed dormancy, and depletion of the seed bank through manipulation of seed dormancy has been suggested as one of the goals in weed control. This study was designed to investigate some of the factors which control dormancy and germination in Amaranthus retroflexus seeds. Germination studies were conducted at different temperatures, and either in continuous white light or in the dark. Higher temperatures increased germination and, although light interacted with temperature, its effect on germination varied with the temperature. In an attempt to determine changes in dormancy during dry storage, two lots of seeds were stored dry at different temperatures. Loss in dormancy increased with an increase in storage temperature and duration, but the time required for maximum germination varied according to the seedlot. Seeds germinated to higher percentages at high temperatures, but storage at higher temperatures and for prolonged duration resulted in seeds gaining the ability to germinate at lower temperatures. Changes in dormancy under field conditions were also examined. Seeds were buried at different depths and for different durations and they all lost viability with time, but this loss was greater in surface-sown and shallowly buried seeds. Dormancy was broken during cold periods and induced as warmer periods progressed. The effects of chemical stimulants on dormancy and germination were investigated. The response of seeds to ethephon and nitrate were assessed at different temperatures either at continuous white light or in the dark. Germination increased with the concentration of the chemicals, and a greater response was observed at lower temperatures. The response to light varied depending on temperature

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Omami, Elizabeth Nabwile. "Amaranthus retroflexus seed dormancy and germination responses to environmental factors and chemical stimulants /." [S.l. : s.n.], 1993. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030603.091907/index.html.

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Chin, Alice. "Evaluation of Macrophoma sp. as a potential mycoherbicide for the control of Amaranthus retroflexus L. (redroot pigweed)." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23876.

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Amaranthus retroflexus L. (redroot pigweed) is a major weed of many crops in North America including corn, soybean, and potato. It can be readily controlled by chemical and cultural methods. However, some populations of A. retroflexus have developed resistance against the application of triazine herbicides. Biololical control could be an alternative method to control this weed species. In 1990, a Macrophoma sp. causing foliar lesions was isolated from redroot pigweed and the potential of this plant pathogenic fungus as a mycoherbicide was evaluated. Large numbers of infective propagules were produced in solid substrate fermentation with chickpeas. When inoculated with 10$ sp8$ or 10$ sp9$ conidia m$ sp{-2}$, plants at the cotyledon to 2-leaf stage showed the most severe damage. Disease developed over a wide range of dew period durations (6 hr to 24 hr) and temperature regimes (14 C to 26 C), and the most rapid and destructive disease development occurred following a 24-hr dew period at 18 C. In controlled environment studies, this Macrophoma sp. was pathogenic to the genus Amaranthus and the closely related genus Celosia.

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Begna, Sultan Hussein. "Agronomic and physiological aspects of competition for light between corn hybrids differing in canopy architecture and weeds." Thesis, McGill University, 1999. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=35572.

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The problems associated with short growing seasons has led to the development of leafy-reduced stature (LRS) corn hybrids. These hybrids have more leaf area above the ear, more rapid leaf area development, shorter stature, earlier maturity, and better responses to high plant populations and narrow spacings than conventional hybrids. Plants grown in a reduced light environment are limited in carbon assimilation and this, in turn, results in reductions in growth and development. A way to supplement the availability of photosynthate is injection of sucrose into plant stems. The objective of this thesis was to determine the ability of LRS corn plants to compete with weeds, and the reactions of weed species to the shade, including the relationships between weed growth (increase in biomass) and development (shape) under shaded conditions. Three years of field experiments (LRS and more conventional corn hybrids with both transplanted and naturally growing weeds) and two years of greenhouse work [weeds alone, C3 (lamb's quarters and velvetleaf) and C4 (redroot pigweed) in full sun or deep (75%) shade injected with 15% sucrose or not] were conducted. Yield reductions due to weed pressure were lower for LRS than other hybrids. Biomass production by both transplanted and naturally occurring weeds was up to 85% less under corn canopies than when grown without competition from corn. The biomass of C4 weeds was more reduced by competition with corn plants than that of C3 weeds. In spite of quick and early leaf development, leaves and other plant parts of LRS were not damaged excessively by mechanical (rotary hoeing) weed control. Both C3 and C4 weed plants produced more dry matter when injected with sucrose. Dry weights of sucrose injected shaded plants were not different from full sun uninjected plants. However, sucrose injection did not alter shading effects on development (distribution of biomass). Dry matter production and photosynthetic rates of C4 weeds were more reduced

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Books on the topic "Amaranthus retroflexus"

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Stegmaier, Carl Edward. Insects Associated with the Rough Pigweed, Amaranthus Retroflexus L. (Amaranthaceae). Creative Media Partners, LLC, 2021.

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Book chapters on the topic "Amaranthus retroflexus"

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Batsatsashvili, Ketevan, Naiba P. Mehdiyeva, Zaal Kikvidze, Manana Khutsishvili, Inesa Maisaia, Shalva Sikharulidze, David Tchelidze, Valida M. Alizade, Narel Y. Paniagua Zambrana, and Rainer W. Bussmann. "Amaranthus retroflexus L. Amaranthaceae." In European Ethnobotany, 107–12. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-49412-8_137.

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Batsatsashvili, Ketevan, Naiba Mehdiyeva, Zaal Kikvidze, Manana Khutsishvili, Inesa Maisaia, Shalva Sikharulidze, David Tchelidze, Valida Alizade, Narel Y. Paniagua Zambrana, and Rainer W. Bussmann. "Amaranthus retroflexus L. Amaranthaceae." In European Ethnobotany, 1–6. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-50009-6_137-1.

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Bussmann, Rainer W., Ketevan Batsatsashvili, and Zaal Kikvidze. "Amaranthus hybridus L. Amaranthus palmeri S. Watson Amaranthis spinosus L. Amaranthus retroflexus L. Amaranthaceae." In Ethnobotany of the Mountain Regions of Central Asia and Altai, 1–10. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-77087-1_18-1.

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Bussmann, Rainer W., Ketevan Batsatsashvili, and Zaal Kikvidze. "Amaranthus hybridus L. Amaranthus palmeri S. Watson Amaranthus spinosus L. Amaranthus retroflexus L. Amaranthaceae." In Ethnobotany of the Mountain Regions of Central Asia and Altai, 93–101. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-28947-8_18.

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Paniagua-Zambrana, Narel Y., Rainer W. Bussmann, Javier Echeverría, and Carolina Romero. "Amaranthus caudatus L. Amaranthus deflexus L. Amaranthus hybridus L. Amaranthus retroflexus L. Amaranthus spinosus L. Amaranthaceae." In Ethnobotany of Mountain Regions, 1–9. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-77093-2_20-2.

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Paniagua-Zambrana, Narel Y., Rainer W. Bussmann, Javier Echeverría, and Carolina Romero. "Amaranthus caudatus L. Amaranthus deflexus L. Amaranthus hybridus L. Amaranthus retroflexus L. Amaranthus spinosus L. Amaranthaceae." In Ethnobotany of Mountain Regions, 199–207. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-28933-1_20.

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Bussmann, Rainer W., Narel Y. Paniagua-Zambrana, Manana Khutsishvili, Zaal Kikvidze, Lea Müller, Ketevan Batsatsashvili, Shalva Sikharulidze, et al. "Amaranthus blitum L. Amaranthus blitoides S.Wats. Amaranthus caudatus Amaranthus cruentus L. Amaranthus hybridus L. Amaranthus palmeri S. Watson Amaranthus paniculatus L. Amaranthus retroflexus L. Amaranthus spinosus L.Amaranthaceae." In Ethnobotany of Mountain Regions, 1–34. Cham: Springer Nature Switzerland, 2024. https://doi.org/10.1007/978-3-319-50009-6_137-2.

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Bussmann, Rainer W., Ketevan Batsatsashvili, Zaal Kikvidze, Narel Y. Paniagua-Zambrana, Manana Khutsishvili, Inesa MaisaiaMaisaia, Shalva Sikharulidze, and David Tchelidze. "Amaranthus hybridus L. Amaranthus palmeri S. Watson Amaranthus spinosus L. Amaranthus retroflexus L. Atriplex hortensis L. Amaranthaceae." In Ethnobotany of Mountain Regions, 1–15. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-77088-8_8-2.

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Bussmann, Rainer W., Ketevan Batsatsashvili, Zaal Kikvidze, Narel Y. Paniagua-Zambrana, Manana Khutsishvili, Inesa Maisaia, Shalva Sikharulidze, and David Tchelidze. "Amaranthus hybridus L. Amaranthus palmeri S. Watson Amaranthus spinosus L. Amaranthus retroflexus L. Atriplex hortensis L. Amaranthaceae." In Ethnobotany of Mountain Regions, 69–82. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-28940-9_8.

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Mapes-Sánchez, Cristina, Ángel Mujica-Sánchez, and Laura Cortés-Zárraga. "Amaranthus crassipes Schltdl Amaranthus cruentus L Amaranthus dubius Mart. ex Thell Amaranthus fimbriatus (Torr.) Benth. ex S. Watson Amaranthus graecizans L Amaranthus hybridus L Amaranthus hypochondriacus L Amaranthus palmeri S. Watson Amaranthus polygonoides L Amaranthus powellii S. Amaranthus retroflexus L Amaranthus spinosus L Amaranthus viridis L Amaranthus watsonii Standl Amaranthaceae." In Ethnobotany of the Mountain Regions of Mexico, 1–17. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-319-77089-5_27-1.

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Conference papers on the topic "Amaranthus retroflexus"

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Vershinina, Z. R., L. R. Khakimova, L. R. Karimova, and Al Kh Baimiev. "Amaranthus retroflexus transgenic plants for phytoremediation." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.267.

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Amaranthus retroflexus was transformed with the pph6 gene encoding the synthesis of a metal-binding peptide, which on average increased plant resistance to Cd and Ni by 15%, the accumulation of heavy metals in plants increased by an average of 25%.

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Didovich, S. V., A. N. Pas’, and O. P. Alekseenko. "Search of phyto-toxicity microorganisms for weeds." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.060.

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Phyto-toxic strains for Ambrosia artemisiifolia, Amaranthus retroflexus, Cirsium arvense have been identified. The intensity of the lesion exceeded the control by 5-70 times (p < [0.0001-0.007]), depending on the strain and the location of the stomata.

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Didovich, S. V., O. P. Alekseenko, and A. N. Pas'. "Bioherbicides for controlling the number of weeds in the agrocenoses of the Crimea." In CURRENT STATE, PROBLEMS AND PROSPECTS OF THE DEVELOPMENT OF AGRARIAN SCIENCE. Federal State Budget Scientific Institution “Research Institute of Agriculture of Crimea”, 2020. http://dx.doi.org/10.33952/2542-0720-2020-5-9-10-16.

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The paper presents a study about the ecologization of plant protection from weeds. The strain of Bacillus sp. Msk4b with phytotoxicity 10-70 times higher compared to control was recommended for the development of bioherbicide technology against Amaranthus retroflexus L. and Ambrosia artemisiifolia L. Isolate of micromycete Msk3g with phytotoxicity 2-8 times higher compared to control was recommended against Cirsium arvense (L.) Scop. and Ambrosia artemisiifolia L.

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Brkovic, Dusko, Dalibor Tomic, and Snežana Brankovic. "DIVERZITET I ANALIZA KVALITATIVNOG SASTAVA BILJNE ZAJEDNICE STRNIŠTA KAO POTENCIJALNE KRME." In SAVETOVANJE o biotehnologiji sa međunarodnim učešćem. University of Kragujeva, Faculty of Agronomy, 2021. http://dx.doi.org/10.46793/sbt26.049b.

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In the plant communities on stubble, 25 taxons were determined, classified into 22 genera and 13 families. Of the 7 most pre-stated families, five are present in this micro-company where asteraceae have 6 taxons (27.27%), Lamiaceae five species (20%) and Poaceae three representatives (12%). As feed can be used: Galinsoga parviflora Cav., Echinochloa crus-galli (L.) Beauv., Elymus repens (L.) Gould., Amaranthus retroflexus L., Chenopodium album L. and Leontodon hispidus L. Potentially toxic to domestic animals are: Colchicum autumnale L., Equisetum arvense L., Equisetum telmateia Ehrh., Ranunculus bulbosus L., Sonhus arvensis L.

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Meseldzija, Maja, Milica Dudic, Radovan Begovic, and Ivana Marjanovic. "EFIKASNOST KOMBINACIJE MEZOTRIONA I TERBUTILAZINA IZ RAZLIČITIH PREPARATA U USEVU KUKURUZA." In XXVI savetovanje o biotehnologiji sa međunarodnim učešćem. University of Kragujevac, Faculty of Agronomy, 2021. http://dx.doi.org/10.46793/sbt26.339m.

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The aim of study was to test the efficacy and phytotoxicity of Calaris pro (326 g kg-1 terbuthylazine+50 g kg-1 mesotrione) and Twister (125 g kg-1 terbuthylazine+50 g kg-1 mesotrione) on weeds in maize crop. The experiment was set up during 2017 at the Kruščić, by a random block system in four repetitions. High efficacy of herbicides was manifested on Abutilon theophrasti, Amaranthus retroflexus, Ambrosia artemisiifolia, Chenopodium album, Chenopodium hybridum, Cirsium arvense, Datura stramonium, Solanum nigrum, Setaria glauca, Hibiscus trionum and Xanthium strumarium, while low efficacy was on Sorghum halepense. The total efficacy for product Calaris pro was 94,16% and for Tvister 96,20%.

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Brković, Duško, Gorica Djelić, Snežana Branković, and Kristina Markeljić. "CONTRIBUTION TO THE RESEARCH OF THE FLORA AND HABITAT CHARACTERISTICS OF SP „BORAČKI KRŠ“ BORAČ." In 2nd International Symposium on Biotechnology. University of Kragujevac, Faculty of Agronomy, 2024. http://dx.doi.org/10.46793/sbt29.42db.

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The Natural Monument „Borački krš“, encompasses a part of the Rudnik-Kotlenik region and it is located in the southwestern Šumadija between Rudnički, Kotlenik and Gledić mountains on the municipality of Knić. In the research area, 117 taxa were identified, classified into 41 families. The most numerous species belong to the families Asteraceae (16) and Lamiaceae (9). The forest is hemicrypto-terrophytic with a strong participation of fanerophytes. The high percentage of terophytes and fanerophytes is particularly characteristic, as it indicates a very warm and dry vegetation period of habitat. Invasive species are Erigeron annuus (L.) Pers., Amaranthus retroflexus L. and Robinia pseudoacacia L.

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Pyrko, A. N. "ENVIRONMENTALLY FRIENDLY SYNTHESIS AND BIOLOGICAL TESTING FOR PESTICIDAL ACTIVITY OF HETEROCYCLIC ANALOGS OF STEROIDS." In SAKHAROV READINGS 2022: ENVIRONMENTAL PROBLEMS OF THE XXI CENTURY. International Sakharov Environmental Institute of Belarusian State University, 2022. http://dx.doi.org/10.46646/sakh-2022-1-187-190.

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The aim of the study is the synthesis and testing for pesticidal activities of 2,3-dimethoxy-16,16-dimethyl-D-homo-8-azagona-1,3,5 (10),13-tetraene-12,17а-one and 2,3-dimethoxy-16,16-dimethyl-d-homo-8-azagona-1,3,5(10),13-tetraene-12-imino-17а-one hydrochloride which could become the basis of plant protection products. The first compound was obtained by condensation of 6,7-dimethoxy-2,3-dihydroisoquinoline with 2-acetyl-5.5-dimethylcyclohexane-1,3-dione. The second substance was synthesized by interaction of the first with ammonium chloride. The synthesized compounds were tested for certain types of pesticide activities. Both synthesized compounds showed herbicidal activity against amaranthus retroflexus, brassica rapa, abutilon theophrasti and insecticidal activity against toxoptera graminum. Hydrochloride 2,3-dimethoxy-16,16-dimethyl-D-homo-8-azagon-1,3,5(10),13-tetraene-12-imino-17a-one showed insecticidal activity against musca domestica and fungicidal activity against drechslera.

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Saulić, Markola, Uroš Mladenović, Miroslav Matejić, Marko Kovačević, and Aleksandar Stevanović. "IMPACT OF ENVIRONMENTAL CHANGES ON SOYBEAN WEED FLORA." In 12. JEEP INTERNATIONAL SCIENTIFIC AGRIBUSINESS CONFERENCE, MAK 2025 – KOPAONIK, 221–26. Association science and business center WORLD; Institute for plant protection and environmen, 2025. https://doi.org/10.46793/mak2025.221s.

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Over the past decades, climate change has induced transformations in the weed flora of arable ecosystems. In soybean production, weeds can have a very negative impact on yield and grain quality and can complicate the harvest of the crop. Phytocenological assessments in soya before and POST-EM application showed 14 weed species were present: Abuthilon theophrasti L., Amaranthus retroflexus L., Ambrosia artemisiifolia L., Bilderdykia convolvulus L., Chenopodium album L., Cirsium arvense L., Convolvulus arvensis L., Echinochloa crus-galli L., Hibiscus trionum L., Lamium purpureum L., Portulaca oleracea L, Sorghum halepense (L.) Pers., Stellaria media L. and Trifolium repens L. Out of 14 species, as many as 4 belonged to invasive weed. It indicates that invasive weeds provide good models for the rapid changes, partly because invasive weeds exhibit unique evolutionary mechanisms integral to their success hanging temperatures, moisture regimes and extreme climate events operate universally, but invasive plant species are generally better equipped than native plants to adapt.

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Blagojević, Milan, Vera Rašković, and Nemanja Stošić. "WEED PREVALENCE IN ONION AND POTATO CROPS DURING 2024." In Global Challenges Through the Prism of Rural Development in the Sector of Agriculture and Tourism GIRR 2024, 148–56. Academy of Applied Studies Šabac, 2025. https://doi.org/10.46793/girr25.148b.

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Onion (Allium cepa L.) is one of the most commonly used vegetable crops for human consumption. To control weeds in onion crops, herbicides are used with a pre-emergence application time for crops and weeds (PRE-EM herbicides), as well as those with a post-emergence application time for crops and weeds (POST-EM herbicides). Potatoes (Solanum tuberosum L.) are grown on an area of 25 million hectares worldwide. About 70% of the area under potatoes is in Europe, where 80% of the total production is produced. Field research on the floristic composition of weeds was conducted during May 2024 in onion and potato crops at three different locations. In onion and potato crops, 17 weed species belonging to 12 families were identified during field research in 2024. The aim of the work is to determine the dominant weed species in these vegetable crops that limit the production and yield of these crops. The analysis determined that the most common weeds present in onion and potato crops are the following: Abutilon theophrasti, Ambrosia artemisiifolia, Chenopodium album, Datura stramonium, Sorghum halepense. Thus, the analysis of the total biological spectrum in the studied area indicates the dominance of annual plants from the therophyte category 70.58% (12 species), among which the most abundant are T4 therophytes with 47.06% (8 species) that germinate in spring, and the seeds ripen in late summer. In the analyzed weed flora, as many as five plants (29.41%) have the status of intensive, namely: Abutilon theophrasti, Amaranthus retroflexus, Ambrosia artemisiifolia, Polygonum lapathifolium and Sorghum halepense.

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