Relevant bibliographies by topics / Tall waterhemp

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'Tall waterhemp'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Tall waterhemp"

1

Hausman, Nicholas E., Patrick J. Tranel, Dean E. Riechers, and Aaron G. Hager. "Responses of a Waterhemp (Amaranthus tuberculatus) Population Resistant to HPPD-Inhibiting Herbicides to Foliar-Applied Herbicides." Weed Technology 30, no. 1 (2016): 106–15. http://dx.doi.org/10.1614/wt-d-15-00098.1.

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Field and greenhouse experiments were conducted to characterize the response of a waterhemp population from McLean County, IL to foliar-applied 4-hydroxyphenylpyruvate dioxygenase (HPPD) –inhibiting herbicides and determine the population's sensitivity to herbicides from other site-of-action groups. In the field, 10 to 15–cm-tall waterhemp treated with mesotrione at 105 g ai ha−1, tembotrione at 92 g ai ha−1, or topromezone at 18 g ai ha−1had significantly greater biomass (≥ 10%) 14 d after treatment (DAT) than waterhemp harvested the day of herbicide application, indicating growth had occurre
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2

Kohrt, Jonathon R., Julie M. Young, Joseph L. Matthews, and Bryan G. Young. "Influence of Nitrogen Status on the Sensitivity of Glyphosate-Resistant and -Susceptible Tall Waterhemp (Amaranthus tuberculatus) and Palmer Amaranth (Amaranthus palmeri)." Weed Science 64, no. 4 (2016): 735–42. http://dx.doi.org/10.1614/ws-d-16-00051.1.

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Anecdotal observations of improved glyphosate efficacy on glyphosate-resistant (GR) tall waterhemp populations in corn production compared with soybean suggested the presence of nitrogen (N) fertilizer may influence the expression of glyphosate resistance. Greenhouse and field experiments were conducted to determine the influence of soil-applied nitrogen fertilizer on the growth rate and sensitivity of glyphosate-susceptible (GS) and GR tall waterhemp and Palmer amaranth. The addition of supplemental fertilizer increased the relative growth rate (plant height and shoot volume), number of nodes
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3

McMullan, Patrick M., and Jerry M. Green. "Identification of a Tall Waterhemp (Amaranthus tuberculatus) Biotype Resistant to HPPD-Inhibiting Herbicides, Atrazine, and Thifensulfuron in Iowa." Weed Technology 25, no. 3 (2011): 514–18. http://dx.doi.org/10.1614/wt-d-10-00150.1.

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Seeds of a putative 4-hydroxyphenylpyruvate dioxygenase (HPPD)-inhibiting herbicide–resistant tall waterhemp biotype from Henry County, IA, were collected from a seed corn field in fall 2009 after plants were not controlled following a POST application of mesotrione plus atrazine. The response of this biotype to various herbicide modes of action was evaluated in greenhouse and field tests. Under greenhouse conditions, the suspect biotype showed an eightfold decrease in sensitivity to mesotrione with a 50% control rate of 21 g ha−1compared with 2.7 g ha−1for the susceptible biotype. The biotype
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4

Hedges, Brittany K., Nader Soltani, Darren E. Robinson, David C. Hooker, and Peter H. Sikkema. "Influence of glyphosate/dicamba application rate and timing on the control of glyphosate-resistant waterhemp in glyphosate/dicamba-resistant soybean." Canadian Journal of Plant Science 99, no. 3 (2019): 371–74. http://dx.doi.org/10.1139/cjps-2018-0101.

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The objective of this study was to determine the effect of premixed glyphosate/dicamba application timing and rate on glyphosate-resistant (GR) waterhemp control. Glyphosate/dicamba applied to 5-, 15-, and 25-cm-tall plants, controlled GR waterhemp 81%, 73%, and 61% at 2 wk after application (WAA) and 61%, 68%, and 72% at 8 WAA, respectively.
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5

Schwartz, Lauren M., Jason K. Norsworthy, Bryan G. Young, et al. "Tall Waterhemp (Amaranthus tuberculatus) and Palmer amaranth (Amaranthus palmeri) Seed Production and Retention at Soybean Maturity." Weed Technology 30, no. 1 (2016): 284–90. http://dx.doi.org/10.1614/wt-d-15-00130.1.

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Two of the most problematicAmaranthusspecies in soybean production today are tall waterhemp and Palmer amaranth. This study determined the percentage of tall waterhemp and Palmer amaranth seed that was retained by the weed at soybean maturity to assess the likelihood of using at-harvest weed seed control tactics for soil seedbank management. Palmer amaranth plants were collected from fields in Arkansas, Tennessee, Illinois, Missouri, and Nebraska, and tall waterhemp plants were collected from fields in Nebraska, Missouri, Wisconsin, and Illinois. Collected plants were assessed for at-harvest w
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6

Nordby, Dawn E., and Robert G. Hartzler. "Influence of corn on common waterhemp (Amaranthus rudis) growth and fecundity." Weed Science 52, no. 2 (2004): 255–59. http://dx.doi.org/10.1614/ws-03-060r.

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Four experiments were conducted in central Iowa during 2001 and 2002 to determine the effects of weed emergence time and corn row spacing on common waterhemp growth and fecundity. Four common waterhemp emergence cohorts were established in each experiment and corresponded to the VE, V3, V5, and V8 stages of corn grown in rows spaced 38 and 76 cm apart. Common waterhemp mortality averaged 20, 56, 97, and 99% for the first, second, third, and fourth cohorts, respectively. Mean mature common waterhemp height for the first cohort was 140 cm, whereas plants emerging at the V8 corn stage were only 5
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7

Ganie, Zahoor A., Gail Stratman, and Amit J. Jhala. "Response of selected glyphosate-resistant broadleaved weeds to premix of fluthiacet-methyl and mesotrione (Solstice™) applied at two growth stages." Canadian Journal of Plant Science 95, no. 5 (2015): 861–69. http://dx.doi.org/10.4141/cjps-2014-429.

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Ganie, Z. A., Stratman, G. and Jhala, A. J. 2015. Response of selected glyphosate-resistant broadleaved weeds to premix of fluthiacet-methyl and mesotrione (Solstice™) applied at two growth stages. Can. J. Plant Sci. 95: 861–869. A premix of fluthiacet-methyl and mesotrione (1:17.5 ratio) has recently been registered for post-emergence (POST) broadleaf weed control in corn. The objective of this study was to determine the response of glyphosate-resistant common waterhemp, giant ragweed, and kochia to a premix of fluthiacet-methyl and mesotrione when applied to 10- and 20-cm-tall plants. Greenh
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8

Mager, Hank J., Bryan G. Young, and John E. Preece. "Characterization of compensatory weed growth." Weed Science 54, no. 02 (2006): 274–81. http://dx.doi.org/10.1614/ws-05-028r1.1.

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Field and greenhouse studies were conducted in 2002 and 2003 to evaluate mechanically stimulated compensatory growth response of ivyleaf morningglory, common waterhemp, and giant ragweed. Compensatory growth was initiated by the physical removal of the apical shoot to break apical dominance. The amount of apical shoot removed had an effect on mechanically stimulated compensatory growth of common waterhemp and giant ragweed. With these species, the more of the apical shoot removed from the plant, the less compensatory growth occurred. Removal of the shoot from above the cotyledons resulted in g
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9

Willemse, Christian, Nader Soltani, Lauren Benoit, et al. "Is There a Benefit of Adding Atrazine to HPPD-Inhibiting Herbicides for Control of Multiple-Herbicide-Resistant, Including Group 5-Resistant, Waterhemp in Corn?" Journal of Agricultural Science 13, no. 7 (2021): 21. http://dx.doi.org/10.5539/jas.v13n7p21.

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The evolution of multiple-herbicide-resistant (MHR) waterhemp (resistant to Groups 2, 5, 9, and 14) in Ontario, Canada is challenging for growers. The complementary activity of the co-application of hydroxyphenylpyruvate dioxygenase (HPPD)-inhibiting herbicides with atrazine has been well documented. The objective of this research was to determine if the addition of atrazine to 4-hydroxyphenylpyruvate dioxygenase (HPPD)-inhibiting herbicides applied postemergence improves their consistency of MHR waterhemp (including Group 5 resistance) in corn. Five field trials were conducted over a two-year
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10

Bauer, Troy A., David A. Mortensen, Gaila Wicks, Thomas A. Hayden, and Alex R. Martin. "Environmental Variability Associated by Economic Thresholds for Soybeans." Weed Science 39, no. 4 (1991): 564–69. http://dx.doi.org/10.1017/s004317450008838x.

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Field studies were conducted in 1986, 1987, 1988, and 1989 to determine the stability of crop loss functions across site by year environments. Environment was a significant source of variation for the soybean crop loss function as influenced by velvetleaf, but not as influenced by tall waterhemp and common sunflower. Weed density was a highly significant source of variation for all weed species studied. Regressions between percent soybean seed yield reductions and weed populations were linear. The velvetleaf interference regression equations were divided into two groups, those with high soybea
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Dissertations / Theses on the topic "Tall waterhemp"

1

(10782717), Brent Coy Mansfield. "Characterization of protoporphyrinogen oxidase (PPO) herbicide resistance in tall waterhemp (Amaranthus tuberculatus)." Thesis, 2021.

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<p>Tall waterhemp management in agronomic crops continues to be an increasing problem due to widespread resistance to herbicides, including protoporphyrinogen oxidase (PPO)-inhibitors. With limited effective postemergence herbicides, especially in soybeans, research to further understand the selection of PPO-resistant (PPO-R) tall waterhemp and identification of new herbicide resistance mechanisms is crucial for improving weed management decisions in order to slow selection for herbicide resistance and prolong the effectiveness of PPO-inhibiting herbicides.</p> <p> Previous researc
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