Results 161 to 170 of about 3,586 (202)

Establishment Techniques for Common Cocklebur (Xanthium strumarium)¹

Weed Technology, 2000
Abstract: Three experiments were conducted in the field using common cocklebur as a test species to identify weed growth differences due to propagation method and weed age when transplanted (with no crop and with soybean). Two experiments involved weed establishment in noncrop areas using four propagation methods (direct seeded–transplanted, peat ...
M. RENEÉ ALBERS-NELSON, DON S. MURRAY, LAVAL M. VERHALEN, CARLA L. GOAD   +3 more
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SOYWEED: A Simulation Model of Soybean and Common Cocklebur Growth and Competition

Agronomy Journal, 1990
AbstractThe yield reduction caused by a particular weed species depends not only on weed density, but also on many other factors which affect both crop and weed growth through time. The objective of this study was to develop a simulation model of crop/weed competition which could be used to investigate the effects of environmental conditions on weed ...
G. G. Wilkerson, J. W. Jones, H. D. Coble, J. L. Gunsolus   +3 more
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Tillage and Soybean Canopy Effects on Common Cocklebur (Xanthium strumarium) Emergence

Weed Science, 2007
Field experiments were conducted in Pendleton, SC, in 2004 and 2005, to determine the influence of tillage with or without soybean on common cocklebur emergence. Treatments included no-till/no soybean (NTNS), no-till plus soybean (NTS), tillage/no soybean (TNS), and tillage plus soybean (TS). Emergence was monitored from an artificial seed bank in 2004
Jason K. Norsworthy, Marcos J. Oliveira
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A Model for Predicting Common Cocklebur (Xanthium strumarium) Emergence in Soybean

Weed Science, 2007
The objective of this research was to develop a model to predict common cocklebur seedling emergence in spring tillage and no-spring-tillage systems in the presence and absence of a soybean canopy. A Weibull function was used to accumulate heat units (i.e., growing degree days) at a 2.5 cm soil depth on days when mean soil temperature, soil water ...
Jason K. Norsworthy, Marcos J. Oliveira
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Response of Sugarbeets, Common Sunflower, and Common Cocklebur to Clopyralid or Desmidipham plus Phenmedipham

Journal of Sugarbeet Research, 1995
A three-year experiment was conducted near Scottsbluff, NE, to evaluate the selectivity of clopyralid, desmedipham plus phenmedipham, and the combination for common sunflower and common cocklebur control in sugarbeet. Clopyralid provided 81 to 98% control of common sunflower and 95 to 98% control of common cocklebur while desmedipham plus phenmedipham ...
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Variation Among U.S. Accessions of Common Cocklebur (Xanthium strumarium)¹

Weed Technology, 2002
Common cocklebur is an adaptable species found in diverse environments. We grew 28 common cocklebur accessions from 14 states at Urbana, IL, to compare their growth, physiology, and morphology in a common environment to determine if regional control recommendations of specific biotypes might be practical.
JAMES J. WASSOM, PATRICK J. TRANEL, LOYD M. WAX   +2 more
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Resistance of Common Cocklebur (Xanthium strumarium) to the Organic Arsenical Herbicides

Weed Science, 1988
The presence of a common cocklebur (Xanthium strumariumL. # XANST) population resistant to organic arsenical herbicides was confirmed in three adjoining counties of South Carolina's ten-county cotton-growing region, but little evidence of resistance was found in the remaining seven counties.
William E. Haigler, Billy J. Gossett, James R. Harris, Joe E. Toler   +3 more
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Inheritance of an ALS-Cross-Resistant Common Cocklebur (Xanthium strumarium) Biotype

Weed Technology, 1999
A greenhouse experiment was conducted from 1995 to 1996 to determine the inheritance of ALS-cross-resistant common cocklebur. Two known biotypes (ALS-susceptible and ALS-resistant) were used in the experiment. Susceptible biotypes were crossed with pollen from resistant biotypes. F1 plants were self-pollinated.
G. Anthony Ohmes, J. Andy Kendig
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Common cocklebur (Xanthium strumarium) interference with peanut (Arachis hypogaea)

Weed Science, 1997
Studies were conducted in Florida to evaluate interference of common cocklebur with peanut. Peanut yield reduction ranged from 0 to 88% for common cocklebur densities of 0–32 plants 8 m−1of peanut row, and predicted loss was similar under normal moisture conditions.
Stanley S. Royal, Barry J. Brecke, Daniel L. Colvin   +2 more
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Competition of Common Cocklebur (Xanthium pensylvanicum) with Soybean (Glycine max)

Weed Science, 1982
The effects of common cocklebur (Xanthium pensylvanicumWallr.) on soybean [Glycine max(L.) Merr. ‘Wells′] development and seed yield were investigated at Urbana, Illinois, from 1974 through 1977. Increased densities of common cocklebur reduced soybean seed yield, total dry weight, and number of pods per plant.
James R. Bloomberg, Bruce L. Kirkpatrick, Loyd M. Wax   +2 more
openaire   +1 more source