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- Author:
- Lee James M.; Owen Micheal D. K.
- Source:
- Weed science 2000 v.48 no.3 pp. 286-290
- ISSN:
- 0043-1745
- Subject:
- Xanthium strumarium; acetolactate synthase; biotypes; chlorimuron ethyl; enzyme inhibition; imazaquin; imazethapyr; weed science; Iowa; Ohio
- Abstract:
- ... Failure to control Xanthium strumarium with acetolactate synthase (ALS) inhibitor herbicides has been reported in Iowa and surrounding states. Single-seed descent techniques were used to isolate three X. strumarium biotypes: CAM-10 from near Cambridge, Iowa; Colo-25 from near Colo, Iowa; and Ohio-1 from Fulton County, Ohio. Ohio-1 and Colo-25 were selected because of apparent resistance to imazeth ...
- DOI:
- 10.1614/0043-1745(2000)048[0286:COASEI]2.0.CO;2
- https://doi.org/10.1614/0043-1745(2000)048[0286:COASEI]2.0.CO;2
- Author:
- Tranel Patrick J.; Wassom James J.
- Source:
- Weed science 2001 v.49 no.3 pp. 318-325
- ISSN:
- 0043-1745
- Subject:
- Xanthium strumarium; DNA; polymerase chain reaction; genotype; genetic variation; genetic relationships; weed science; Kansas; Michigan; Illinois; Iowa; Ohio; Arkansas; South Carolina; Missouri; North Carolina; Mississippi
- Abstract:
- ... DNA fragment analysis, based on amplification of intersimple sequence repeats by the polymerase chain reaction (ISSR-PCR), was used to assess genetic relationships of 217 U.S. accessions of common cocklebur. Twenty-four polymorphic markers were generated from six primers. Analysis of genetic similarity by clustering procedures resulted in separation of the accessions into two main clusters. Access ...
- DOI:
- 10.1614/0043-1745(2001)049[0318:GROCCA]2.0.CO;2
- https://doi.org/10.1614/0043-1745(2001)049[0318:GROCCA]2.0.CO;2
- Author:
- Cardina John; Herms Catherine P.; Doohan Douglas J.
- Source:
- Weed science 2002 v.50 no.4 pp. 448-460
- ISSN:
- 0043-1745
- Subject:
- no-tillage; Oxalis; Persicaria pensylvanica; Veronica; Capsella bursa-pastoris; hay; Euphorbia maculata; Setaria faberi; Zea mays; Glycine max; seeds; Chenopodium album; corn; species diversity; weeds; crop rotation; plant communities; oats; herbicides; soybeans; growing season; plows; Avena sativa; Amaranthus retroflexus; crops; Ohio; Pennsylvania
- Abstract:
- ... We characterized the size and species composition of the weed seedbank after 35 yr of continuous crop rotation and tillage system treatments at two locations in Ohio. Spring seedbanks were monitored during 1997, 1998, and 1999 in continuous corn (CCC), corn––soybean (CS), and corn––oats––hay (COH) rotations in moldboard plow (MP), chisel plow (CP), and no-tillage (NT) plots where the same herbicid ...
- DOI:
- 10.1614/0043-1745(2002)050[0448:CRATSE]2.0.CO;2
- https://doi.org/10.1614/0043-1745(2002)050[0448:CRATSE]2.0.CO;2
- Author:
- Lee James M.; Owen Micheal D. K.
- Source:
- Weed science 2003 v.51 no.2 pp. 186-190
- ISSN:
- 0043-1745
- Subject:
- Xanthium strumarium; biotypes; dry matter accumulation; flowering; growing season; on-farm research; photoperiod; soil; Iowa; Minnesota; Ohio
- Abstract:
- ... Five common cocklebur biotypes from southern Minnesota, central Iowa, southern Iowa, and Ohio were grown at the Iowa State University Curtiss Research Farm in 1995 and 1996 to examine intraspecific variations. Maximum plant heights were measured, and anthesis dates and day of bur set were recorded. At the end of the growing season, all plants were excised at the soil surface and weighed. Common co ...
- DOI:
- 10.1614/0043-1745(2003)051[0186:DMYDOF]2.0.CO;2
- https://doi.org/10.1614/0043-1745(2003)051[0186:DMYDOF]2.0.CO;2
- Author:
- Tranel Patrick J.; Jiang Weilu; Patzoldt William L.; Wright Terry R.
- Source:
- Weed science 2004 v.52 no.2 pp. 236-241
- ISSN:
- 0043-1745
- Subject:
- Amaranthus hybridus; acetolactate synthase; amino acids; gene flow; genes; herbicide resistance; herbicides; intraspecific variation; nucleotides; population structure; prediction; Illinois; Minnesota; Ohio
- Abstract:
- ... Common ragweed and common cocklebur plants were collected at two sites each in Illinois, Minnesota, and Ohio to analyze intraspecific variability of the gene encoding acetolactate synthase (ALS). A 385-nucleotide fragment within the coding sequence of ALS was compared among 24 plants of each of these two species from the six locations. Common ragweed ALS was highly variable, with polymorphisms obs ...
- DOI:
- 10.1614/WS-03-100R
- https://doi.org/10.1614/WS-03-100R
- Author:
- Leon Ramon G.; Bassham Diane C.; Owen Micheal D. K.
- Source:
- Weed science 2006 v.54 no.2 pp. 305-315
- ISSN:
- 0043-1745
- Subject:
- Amaranthus tuberculatus; biotypes; genetic variation; glyceraldehyde-3-phosphate dehydrogenase; heat shock proteins; herbicide resistance; intraspecific variation; isoelectric point; proteome; seed dormancy; seed germination; seeds; temperature; weed control; weeds; Iowa; Ohio
- Abstract:
- ... Common waterhemp is an obligate outcrosser that has high genetic variability. However, under selection pressure, this weed shows population differentiation for adaptive traits. Intraspecific variation for herbicide resistance has been studied, but no studies have been conducted to determine the existence of variation for other adaptive traits that could influence weed management. The objective of ...
- DOI:
- 10.1043/0043-1745(2006)54[305:GAPARI]2.0.CO;2
- https://doi.org/10.1043/0043-1745(2006)54[305:GAPARI]2.0.CO;2
- Author:
- Sosnoskie Lynn M.; Herms Catherine P.; Cardina John
- Source:
- Weed science 2006 v.54 no.2 pp. 263-273
- ISSN:
- 0043-1745
- Subject:
- Avena sativa; Glycine max; Medicago sativa; Zea mays; alfalfa; alternative crops; community structure; corn; cropping sequence; discriminant analysis; disturbed soils; hay; management systems; minimum tillage; multivariate analysis; no-tillage; oats; seeds; soybeans; species diversity; weeds; Ohio
- Abstract:
- ... Knowledge about how the type, timing, and arrangement of cultural practices influence weed species composition is important for understanding the ecological results of control strategies and designing alternative crop management systems. We evaluated weed seed density, diversity, and community composition from 1997 to 1999 in a 35-yr-old study comparing cropping sequences (continuous corn, corn–so ...
- DOI:
- 10.1043/0043-1745(2006)54[263:WSCCIA]2.0.CO;2
- https://doi.org/10.1043/0043-1745(2006)54[263:WSCCIA]2.0.CO;2
- Author:
- Figueroa Rodrigo; Doohan Douglas; Cardina John; Harrison Kent
- Source:
- Weed science 2007 v.55 no.3 pp. 187-192
- ISSN:
- 0043-1745
- Subject:
- Senecio vulgaris; viability; seed dormancy; weed control; longevity; soil temperature; tillage; fertilizer application; phenology; broadleaf weeds; annual weeds; plant adaptation; seasonal variation; seedling emergence; buried seeds; Ohio
- Abstract:
- ... Common groundsel is an alien annual weed that has become increasingly troublesome in many crops in Ohio. Understanding the periodicity of seedling emergence and longevity of seeds buried in the soil may help growers devise more efficient strategies to control common groundsel. Studies were conducted to determine the dormancy status of common groundsel seeds over 24 mo, and to describe the effect o ...
- DOI:
- 10.1614/WS-06-122R1.1
- https://doi.org/10.1614/WS-06-122R1.1
- Author:
- Cardina John; Herms Catherine P.; Herms Daniel A.; Forcella Frank
- Source:
- Weed science 2007 v.55 no.5 pp. 455-464
- ISSN:
- 0043-1745
- Subject:
- ornamental plants; Setaria faberi; simulation models; interspecific variation; planning; biomarkers; tillage; phenology; field experimentation; seedling emergence; grass weeds; heat sums; Ohio
- Abstract:
- ... We evaluated the use of ornamental plants as phenological indicators for predicting giant foxtail emergence and compared their performance with predictions based upon Julian day, cumulative growing degree––days (GDD), and the WeedCast program. From 1997 to 2001, we monitored giant foxtail emergence in a field experiment with and without fall and spring tillage to estimate the dates of 25, 50, and ...
- Handle:
- 10113/11582
- DOI:
- 10.1614/WS-07-005.1
- https://doi.org/10.1614/WS-07-005.1
- Author:
- Harrison S. K.; Regnier E. E.; Schmoll J. T.; Harrison J. M.
- Source:
- Weed science 2007 v.55 no.1 pp. 16-22
- ISSN:
- 0043-1745
- Subject:
- viability; seed dormancy; plant health; Ambrosia trifida; depth; buried seeds; weeds; seedling emergence; field experimentation; seed anatomy; mortality; Ohio
- Abstract:
- ... Giant ragweed is a competitive, allergenic weed that persists in agricultural fields and early successional sites. Field experiments were conducted to determine the effects of seed size and seed burial depth on giant ragweed emergence and seed demise. In a seedling emergence experiment, small (< 4.8 mm in diameter) and large (> 6.6 mm in diameter) seeds were buried 0, 5, 10, and 20 cm in fall 1997 ...
- DOI:
- 10.1614/WS-06-109.1
- https://doi.org/10.1614/WS-06-109.1
- Author:
- McGiffen Milt; Spokas Kurt; Forcella Frank; Archer David; Poppe Steven; Figueroa Rodrigo
- Source:
- Weed science 2008 v.56 no.1 pp. 58-65
- ISSN:
- 0043-1745
- Subject:
- soil temperature; broadleaf weeds; soil depth; model validation; weed control; phenology; statistical models; Senecio vulgaris; simulation models; soil water content; equations; microclimate; soil water; seedling emergence; soil water potential; prediction; seed germination; shade; Weibull statistics; heat sums; Ohio; Minnesota
- Abstract:
- ... Common groundsel is an important weed of strawberry and other horticultural crops. Few herbicides are registered for common groundsel control in such crops, and understanding and predicting the timing and extent of common groundsel emergence might facilitate its management. We developed simple emergence models on the basis of soil thermal time and soil hydrothermal time and validate them with the ...
- Handle:
- 10113/12207
- DOI:
- 10.1614/WS-07-060.1
- https://doi.org/10.1614/WS-07-060.1
- Author:
- Schutte Brian J.; Regnier Emilie E.; Harrison S. Kent; Schmoll Jerron T.; Spokas Kurt; Forcella Frank
- Source:
- Weed science 2008 v.56 no.4 pp. 555-560
- ISSN:
- 0043-1745
- Subject:
- Ambrosia trifida; seedling emergence; model validation; simulation models; buried seeds; soil water; soil temperature; spring; prediction; integrated weed management; Ohio
- Abstract:
- ... Late-season giant ragweed emergence in Ohio crop fields complicates decisions concerning the optimum time to implement control measures. Our objectives were to develop a hydrothermal time emergence model for a late-emerging biotype and validate the model in a variety of locations and burial environments. To develop the model, giant ragweed seedlings were counted and removed weekly each growing sea ...
- Handle:
- 10113/17439
- DOI:
- 10.1614/WS-07-161.1
- https://doi.org/10.1614/WS-07-161.1
- Author:
- Schutte Brian J.; Davis Adam S.; Renner Karen A.; Cardina John
- Source:
- Weed science 2008 v.56 no.6 pp. 834-840
- ISSN:
- 0043-1745
- Subject:
- maternal effect; Setaria faberi; testa; interspecific variation; genetic variation; broadleaf weeds; field experimentation; buried seeds; soil water potential; grass weeds; Abutilon theophrasti; mortality; Michigan; Ohio
- Abstract:
- ... The primary defense against seed mortality, the seed coat, is maternally derived. Hence, weed seed mortality in the soil seedbank is likely to be influenced by the maternal environment and genetics. We hypothesized that seed accessions from contrasting maternal environments (seed lots) exhibit different rates of seed mortality and that the relative differences among seed lots remain consistent acr ...
- Handle:
- 10113/22864
- DOI:
- 10.1614/WS-08-031.1
- https://doi.org/10.1614/WS-08-031.1
- Author:
- Harrison S. Kent; Venkatesh Ramarao; Riedel Richard M.
- Source:
- Weed science 2008 v.56 no.2 pp. 327-335
- ISSN:
- 0043-1745
- Subject:
- Heterodera glycines; application timing; weed control; ova; host plants; broadleaf weeds; plant pests; plant density; seedling emergence; alternative hosts; field experimentation; cyst nematodes; mortality; seed dispersal; Lamium purpureum; Ohio
- Abstract:
- ... Purple deadnettle is an obligate winter annual weed and an alternate host of soybean cyst nematode (SCN). Field experiments were conducted using microplots to determine (1) the effect of purple deadnettle planting date and (2) the effect of purple deadnettle removal time on SCN egg population density in continuous no-tillage soybean. A population change factor (PCF) to assess treatment effects on ...
- DOI:
- 10.1614/WS-07-139.1
- https://doi.org/10.1614/WS-07-139.1
- Author:
- Wilfong Bryan N.; Gorchov David L.; Henry Mary C.
- Source:
- Weed science 2009 v.57 no.5 pp. 512-520
- ISSN:
- 0043-1745
- Subject:
- Lonicera maackii; invasive species; woody weeds; deciduous forests; understory; temperate forests; overstory; phenology; temporal variation; remote sensing; Landsat; image analysis; woodlands; spectral analysis; prediction; mathematical models; Ohio; Indiana
- Abstract:
- ... Remote sensing has been used to directly detect and map invasive plants, but has not been used for forest understory invaders because they are obscured by a canopy. However, if the invasive species has a leaf phenology distinct from native forest species, then temporal opportunities exist to detect the invasive. Amur honeysuckle, an Asian shrub that invades North American forests, expands leaves e ...
- DOI:
- 10.1614/WS-09-012.1
- https://doi.org/10.1614/WS-09-012.1
- Author:
- Davis Vince M.; Kruger Greg R.; Stachler Jeff M.; Loux Mark M.; Johnson William G.
- Source:
- Weed science 2009 v.57 no.5 pp. 494-504
- ISSN:
- 0043-1745
- Subject:
- plant growth; pesticide mixtures; broadleaf weeds; dry matter accumulation; herbicide-resistant weeds; acetolactate synthase; enzyme inhibitors; biotypes; glyphosate; field experimentation; Conyza canadensis; postemergent weed control; genetic variation; cloransulam; seed productivity; Indiana; Ohio
- Abstract:
- ... Horseweed populations with mixtures of biotypes resistant to glyphosate and acetolactate synthase (ALS)––inhibiting herbicides as well as biotypes with multiple resistance to glyphosate ++ ALS-inhibiting herbicides have been documented in Indiana and Ohio. These biotypes are particularly problematic because ALS-inhibiting herbicides are commonly tank mixed with glyphosate to improve postemergence ...
- DOI:
- 10.1614/WS-09-024.1
- https://doi.org/10.1614/WS-09-024.1
- Author:
- Sosnoskie Lynn M.; Herms Catherine P.; Cardina John; Webster Theodore M.
- Source:
- Weed science 2009 v.57 no.3 pp. 261-270
- ISSN:
- 0043-1745
- Subject:
- Glycine max; soybeans; Zea mays; corn; glyphosate; herbicide resistance; field experimentation; crop rotation; conventional tillage; buried seeds; weeds; plant communities; botanical composition; long term experiments; Avena sativa; oats; hay; forage crops; plant density; no-tillage; minimum tillage; postemergent weed control; Ohio
- Abstract:
- ... The compositions of the germinable weed seedbank and aboveground weed communities in a long-term tillage and rotation study were characterized 4, 5, and 6 yr (2002 to 2004) after the adoption of glyphosate-tolerant corn and soybean. Averaged across rotation, mean germinable weed seed density and diversity were greatest in the no-tillage treatment as compared to the minimum- and conventional-tillag ...
- Handle:
- 10113/30761
- DOI:
- 10.1614/WS-08-147.1
- https://doi.org/10.1614/WS-08-147.1
- Author:
- Felix Joel; Ivany Jerry; Kegode George O.; Doohan Doug
- Source:
- Weed science 2009 v.57 no.1 pp. 87-93
- ISSN:
- 0043-1745
- Subject:
- application timing; Solanum ptycanthum; Solanum tuberosum; metribuzin; broadleaf weeds; plant density; tubers; crop yield; potatoes; weed control; metolachlor; temporal variation; simulation models; indicator species; Chenopodium album; seedling emergence; crop-weed competition; prediction; decision support systems; tillage; Ohio; Prince Edward Island; North Dakota
- Abstract:
- ... A weed emergence prediction model, WeedCast, was used as a decision aid to schedule potato cultivation with and without herbicides at Wooster, OH, USA; Charlottetown, PE, Canada; and Fargo, ND, USA, from 2001 to 2003. Studies were laid out in a split-plot design with herbicides (±±) forming the main plots and cultivation timing as subplots. Cultivation was done at 15, 30, or 60%% of predicted weed ...
- DOI:
- 10.1614/WS-08-019.1
- https://doi.org/10.1614/WS-08-019.1
- Author:
- Mock Valerie A.; Creech J. Earl; Ferris Virginia R.; Faghihi Jamal; Westphal Andreas; Santini Judith B.; Johnson William G.
- Source:
- Weed science 2012 v.60 no.4 pp. 634-640
- ISSN:
- 0043-1745
- Subject:
- Glycine max; Heterodera glycines; Lolium multiflorum; Lolium perenne; Triticum aestivum; Zea mays; alternative hosts; annual weeds; autumn; corn; cover crops; crop rotation; crop yield; herbicides; no-tillage; pesticide application; population density; production technology; soybeans; spring; weed control; wheat; Illinois; Indiana; Ohio
- Abstract:
- ... Certain winter annual weeds have been documented as alternative hosts to soybean cyst nematode (SCN), and infestations by such species are common in no-till production fields in the midwestern United States of Indiana, Ohio, and Illinois. The objective of this research was to determine the influence of crop rotation and winter annual weed management on winter weed growth, SCN population density, a ...
- DOI:
- 10.1614/WS-D-11-00192.1
- https://doi.org/10.1614/WS-D-11-00192.1
- Author:
- Schutte Brian J.; Regnier Emilie E.; Harrison S. Kent
- Source:
- Weed science 2012 v.60 no.1 pp. 19-26
- ISSN:
- 0043-1745
- Subject:
- Ambrosia trifida; correlation; germination; growing season; pericarp; periodicity; seed dormancy; seedling emergence; soil; spring; summer; temperature; weed science; Ohio
- Abstract:
- ... Giant ragweed germination is delayed by both a physiological dormancy of the embryo (embryo dormancy) and an inhibitory influence of embryo-covering structures (covering structure-enforced [CSE] dormancy). To clarify the roles of embryo and CSE dormancy in giant ragweed seedling emergence timing, we conducted two experiments to address the following objectives: (1) determine changes in germinabili ...
- DOI:
- 10.1614/WS-D-11-00049.1
- https://doi.org/10.1614/WS-D-11-00049.1
- Author:
- Page Eric R.; Cerrudo Diego; Westra Philip; Loux Mark; Smith Kenneth; Foresman Chuck; Wright Harold; Swanton Clarence J.
- Source:
- Weed science 2012 v.60 no.3 pp. 423-430
- ISSN:
- 0043-1745
- Subject:
- Zea mays; atrazine; corn; developmental stages; dry matter partitioning; field experimentation; glyphosate; grain yield; leaves; mesotrione; metolachlor; seeds; weed control; weeds; Colorado; Ohio
- Abstract:
- ... Control of early-emerging weeds is essential to protect the yield potential of maize. An understanding of the physiological changes that occur as a result of weed interference is required to address variability in yield loss across sites and years. Field trials were conducted at the University of Guelph (UG), the Ohio State University (OSU), and Colorado State University (CSU) during 2009 and 2010 ...
- DOI:
- 10.1614/WS-D-11-00183.1
- https://doi.org/10.1614/WS-D-11-00183.1
- Author:
- Davis Adam S.; Clay Sharon; Cardina John; Dille Anita; Forcella Frank; Lindquist John; Sprague Christy
- Source:
- Weed science 2013 v.61 no.3 pp. 415-421
- ISSN:
- 0043-1745
- Subject:
- Ambrosia trifida; buried seeds; climate change; cold; dormancy; gardens; models; prediction; seedling emergence; soil; temperature; weed control; weeds; Illinois; Kansas; Michigan; Nebraska; Ohio; South Dakota
- Abstract:
- ... Robust predictions of weed seedling emergence from the soil seedbank are needed to aid weed management. A common seed accession (Illinois) of giant ragweed was buried in replicate experimental gardens over 18 site years in Illinois, Michigan, Kansas, Nebraska, Ohio, and South Dakota to examine the importance of site and climate variability by year on seedling emergence. In a nonlinear mixed-effect ...
- DOI:
- 10.1614/WS-D-12-00139.1
- https://doi.org/10.1614/WS-D-12-00139.1
- Author:
- Mame E. Redwood; Glenn R. Matlack; Cynthia D. Huebner
- Source:
- Weed science 2018 v.66 no.2 pp. 190-198
- ISSN:
- 0043-1745
- Subject:
- Alliaria petiolata; Microstegium vimineum; bags; buried seeds; deciduous forests; dormancy; germination; mortality; nylon; reproduction; seed longevity; seedling emergence; soil; spring; viability; weed science; winter; Ohio
- Abstract:
- ... An effective management plan for invasive herb populations must consider the potential for regeneration from the soil seedbank. To test this potential, we examined two species, Japanese stiltgrass and garlic mustard, at deciduous forest sites in southeastern Ohio. Seeds were buried in nylon mesh bags and recovered at regular intervals over 24 mo. Recovered seeds were tested for germination and via ...
- Author:
- Brent P. Murphy; Alvaro S. Larran; Bruce Ackley; Mark M. Loux; Patrick J. Tranel
- Source:
- Weed science 2019 v.67 no.3 pp. 296-302
- ISSN:
- 0043-1745
- Subject:
- Amaranthus palmeri; Amaranthus retroflexus; Amaranthus tuberculatus; atrazine; crop production; gene amplification; glyphosate; glyphosate resistance; growers; growing season; lactofen; monitoring; mutation; resistance mechanisms; screening; surveys; weeds; Ohio
- Abstract:
- ... Herbicide resistance within key driver weeds, such as common waterhemp [Amaranthus tuberculatus (Moq.) Sauer var. rudis (Sauer) Costea and Tardif ], constrains available management options for crop production. Routine surveillance for herbicide resistance provides a mechanism to monitor the development and spread of resistant populations over time. Furthermore, the identification and quantificatio ...
- DOI:
- 10.1017/wsc.2018.91
- https://doi.org/10.1017/wsc.2018.91
- Author:
- Alyssa I. Essman; Mark M. Loux; Alexander J. Lindsey; Bruce A. Ackley; Emilie E. Regnier
- Source:
- Weed science 2021 v.69 no.6 pp. 719-728
- ISSN:
- 0043-1745
- Subject:
- Conyza canadensis; Glycine max; questionnaires; soybeans; surveys; weed control; weeds; Ohio
- Abstract:
- ... On-site surveys of weed populations provide information on the relative occurrence and density of weeds that can be useful to growers in that region. Data generated by weed surveys can aid in the management of weed issues by monitoring the movement of problem weeds and forecasting areas susceptible to infestations. Currently, on-site surveys are often performed on a small scale, within single fiel ...
- DOI:
- 10.1017/wsc.2021.42
- https://doi.org/10.1017/wsc.2021.42