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1

Tickes, Barry R., and E. Stanley Heathman. "Wheat Weed Control, Yuma County." College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/200519.

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2

Kopan, Suzanne. "Mechanical weed control in conservation tillage." Online access for everyone, 2007. http://www.dissertations.wsu.edu/Thesis/Spring2007/s_kopan_010207.pdf.

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3

Gaongalelwe, Motlhasedi Olebile. "Effect of delayed sowing and increased crop density on weed emergence and competition with wheat." Title page, table of contents and abstract only, 2002. http://web4.library.adelaide.edu.au/theses/09AFM/09afmg2118.pdf.

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4

Tickes, Barry R. "Canarygrass Control in Wheat." College of Agriculture, University of Arizona (Tucson, AZ), 1999. http://hdl.handle.net/10150/205161.

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5

Tickes, Barry. "Evaluation of Herbicides for Control of Littleseed Canarygrass in Wheat." College of Agriculture, University of Arizona (Tucson, AZ), 2000. http://hdl.handle.net/10150/204102.

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The two herbicides currently registered for the control of canarygrass in Arizona work by inhibiting lipid biosynthesis. The levels of control with these herbicides have been variable, ranging from 60 to 90 percent. Crop safety has been good. Two newer herbicides utilizing a different mode of action have provided more consistent and higher levels of weed control but with increased crop injury. These are numbered compounds (MKH6561 and F130060) and they are ALS inhibitors.
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6

Frihauf, John Carl. "Weed control efficacy and winter wheat response to saflufenacil." Diss., Manhattan, Kan. : Kansas State University, 2009. http://hdl.handle.net/2097/1603.

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7

Refsell, Dawn E. "Integrated weed management in Kansas winter wheat." Diss., Kansas State University, 2013. http://hdl.handle.net/2097/15742.

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Doctor of Philosophy<br>Department of Agronomy<br>J. Anita Dille<br>Integrated weed management (IWM) is an ecological approach to weed control that reduces dependence on herbicides through understanding of weed biology and involves using multiple weed control measures including cultural, chemical, mechanical and biological methods. The critical period of weed control is the duration of the crop life cycle in which it must be kept weed-free to prevent yield loss from weed interference. Eight experiments were conducted throughout Kansas between October 2010 and June 2012 to identify this perio
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8

Karim, S. M. Rezaul. "Competitive ability of four spring wheat varieties against fat hen (Chenopodium album L.)." Thesis, University of Aberdeen, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300958.

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This research programme sought to establish whether crop varieties had different competitive abilities against weeds and what the characteristics of competitive cultivars might be. A series of experiments studied the relative competitiveness with fat hen (<I>Chenopodium album</I>) of four spring wheat varieties Alexandria, Tonic, Canon and Baldus selected to represent different heights, tillering potentials and leaf angles. Additional experiments examined aspects of seed production, seed germination and seedling establishment of fat hen. In the glasshouse, all the wheat varieties were of simil
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9

Ottman, Michael, and Barry Tickes. "Weed Control for Wheat and Barley in the Low Deserts of Arizona." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2008. http://hdl.handle.net/10150/146707.

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3 pp.<br>Revised<br>Weeds can be a problem in wheat and barley especially where crop rotation is not practiced. An integrated approach to weed management can be followed. Chemical treatments are important tools in weed management to maintain yield and quality and prevent proliferation of weeds that could affect future crops.
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10

Bueno, Carmen de Lucas. "The role of cultivar choice for enhanced competitive ability of wheat." Thesis, University of Reading, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308027.

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11

McCloskey, William B., and Stephen H. Husman. "Evaluation of Puma (Fenoxaprop) for Littleseed Canarygrass Control in Durum Wheat in Central Arizona (1998)." College of Agriculture, University of Arizona (Tucson, AZ), 1998. http://hdl.handle.net/10150/208280.

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A field experiment was conducted in 1998 to determine the efficacy of Puma and Hoelon for littleseed canarygrass control in durum wheat. The herbicide treatments consisted of three rates of Puma, 0.83, 1.24, and 1.66 oz a.i./A, and one rate of Hoelon, 6.8 oz a.i./A, that were applied at two application timings. The early-postemergence (EPOST) applications when canarygrass had 2.2 leaves per plant did not result in commercially acceptable control due to water stress. Increasing rates of Puma applied mid-postemergence (MPOST) when canarygrass had 5 leaves per plant provided increasing canarygras
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12

Lee, Codee Zebedee. "Postemergence Efficacy of Pyroxasulfone at Different Rates and Timings in Wheat." Thesis, North Dakota State University, 2018. https://hdl.handle.net/10365/29009.

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Pyroxasulfone is a VLCFA inhibitor labeled to control grasses and small-seeded broadleaf weeds. Little information is available regarding this herbicide being applied postemergence. Two field experiments were conducted to evaluate the efficacy of pyroxasulfone used postemergence. Pyroxasulfone applied to 2-leaf wheat controlled up to 83% of the green foxtail but had little to no effect on broadleaves. An additional field study was conducted to determine if pyroxasulfone could give supplemental green foxtail control when tank-mixed with ALS inhibitors. Few tank-mix combinations increased c
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13

Roslon, Ewa. "Relay cropping of spring barley and winter wheat /." Uppsala : Dept. of Ecology and Crop Production Science, Swedish Univ. of Agricultural Sciences, 2003. http://epsilon.slu.se/a427-ab.html.

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14

Fourie, Johan Hendrik Petrus. "'n Ondersoek na die ontstaan van onkruiddoderweerstand in Bromus diandrus Roth." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/17354.

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Thesis (MScAgric)--University of Stellenbosch, 2005.<br>ENGLISH ABSTRACT: Ripgut brome (Bromus diandrus Roth.) is a weed that causes great problems in the most wheat and grain producing areas and also in livestock practices. Until recently (1995) there were no registered chemicals for the management of ripgut brome in wheat, in South Africa. After the registration of sulfosulfuron and iodosulfuron + mesosulfuron for the management of ripgut brome in wheat, these two herbicides were widely used and in the case of wheat monocultures, it was used repeatedly. During the last few years, repor
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15

Doole, Graeme John. "Value of perennial pasture phases in dryland agricultural systems of the eastern-central wheat belt of Western Australia." University of Western Australia. School of Agricultural and Resource Economics, 2007. http://theses.library.uwa.edu.au/adt-WU2007.0213.

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Over the past thirty years, price relativities and technological development have motivated an increase in the area of land allocated to cropping, as opposed to pasture production, throughout the central wheat belt of Western Australia. Nevertheless, reducing the proportion of pasture in these rotations has challenged the future productivity of farming systems in this area. First, the frequent application of selective herbicides for weed control in extended cropping rotations has promoted the development of herbicide resistance in a number of major agricultural weeds. Second, the primary use o
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16

Ottman, Michael. "Small Grain Growth and Development." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2004. http://hdl.handle.net/10150/147020.

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17

Bailey, William Anthony. "Herbicide-based Weed Management Systems for Potato (Solanum tuberosum) and Wheat (Triticum aestivum) and Growth and Reproductive Characteristics of Smooth Pigweed (Amaranthus hybridus)." Diss., Virginia Tech, 2002. http://hdl.handle.net/10919/28578.

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Integrated weed management involves the utilization of weed biology principles to develop effective and economical control strategies. This research involved investigations of herbicide-based weed management programs in potato (<i>Solanum tuberosum</i> L.) and winter wheat (<i>Triticum aestivum</i> L.) as well as investigations of the biological characteristics of smooth pigweed (<i>Amaranthus hybridus</i>), a troublesome species in many crops. Sulfentrazone is an herbicide registered for use in soybean [<i>Glycine max</i> (L.) Merr.] and tobacco (<i>Nicotiana tabacum</i> L.) that may also h
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18

Tickes, Barry. "Preharvest control of broadleaf weeds in wheat." College of Agriculture, University of Arizona (Tucson, AZ), 2003. http://hdl.handle.net/10150/205404.

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Nine herbicide treatments were evaluated for the control of mature nettleleaf goosefoot in durum wheat that was ten days from harvest. The only effective treatments were combinations of Glyphosate (Roundup Ultra Max and Touchdown) and Paraquat (Gramoxone). Applications of Aim, Gramoxone, and Glyphosate alone were ineffective.
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19

Tickes, Barry. "Canarygrass Control in Wheat - 2003." College of Agriculture, University of Arizona (Tucson, AZ), 2003. http://hdl.handle.net/10150/205405.

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Fourteen herbicide treatments were evaluated for the control of littleseed canarygras in durum wheat. Hoelon produced marginal (65%) control, Achieve fair (77%), Control and Puma good (92%) control. Tank mixes of Achieve and Puma with MCPA and Aim resulted in reduced canarygrass control. New ALS inhibitors, Olympus and F130060, produced good to excellent (85 to 95%) control except when mixed with crop oil concentrate and liquid nitrogen.
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20

Tickes, Barry. "Evaluation of herbicides for control of littleseed canarygrass in wheat - 2004." College of Agriculture, University of Arizona (Tucson, AZ), 2004. http://hdl.handle.net/10150/203872.

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Four herbicides and combinations of these herbicides with MCPA were evaluated for the control of Littleseed canarygrass in durum wheat. The currently registered herbicides, Achieve and Puma (not registered in Arizona) produced control levels of 80 to 95 percent with good crop safety. The new herbicides being developed, Osprey and Olympus produced higher and more consistent levels of control of 95 to 99 percent but caused slight to moderate crop injury. Combinations of Achieve and Puma with MCPA, a broadleaf herbicide, resulted in decreased control. When Osprey was tank mixed with MCPA, crop in
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21

Tickes, B. "Evaluation of Herbicides for the Control of Littleseed Canarygrass in Wheat." College of Agriculture, University of Arizona (Tucson, AZ), 2001. http://hdl.handle.net/10150/205394.

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There are currently three herbicides registered for the control of littleseed canarygrass in the desert southwest. Hoelon was used with marginal success from 1982 to 1999. In 1999, Achieve was registered in Arizona and Puma was registered in California for the control of this weed in wheat and barley. Both have produced good to excellent levels of control (75 to 95 percent) in our tests and under commercial conditions. Two newer herbicides, Olympus (formerly Bayer MKH6561) and F130060 (Aventis) are being developed and have produced excellent levels of canarygrass control in our tests with less
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22

Tickes, Barry. "Evaluation of Herbicides for the Control of Littleseed Canarygrass in Wheat – 2005." College of Agriculture, University of Arizona (Tucson, AZ), 2005. http://hdl.handle.net/10150/203841.

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Three herbicides, Puma, Achieve and Osprey, have been registered for the control of Littleseed Canarygrass in the last five years. Another, Pinoxaden, is being developed and should be registered in the next few years. These herbicides were compared for weed control and crop safety. All produced very good to excellent levels of control although crop injury, especially when tank mixed with broadleaf herbicides, was significant.
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23

Roschewitz, Indra. "Farming systems and landscape context effects on biodiversity and biocontrol /." Doctoral thesis, [S.l. : s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=976217961.

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24

Gandhi, Harish Tulshiramji. "Jointed goatgrass (Aegilops cylindrica Host) genetic diversity and hybridization with wheat (Triticum aestivum L.)." Thesis, 2005. http://hdl.handle.net/1957/28764.

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Jointed goatgrass (Aegilops cylindrica Host; 2n=4x=28; CCDD) is an agriculturally important species both as a weed and as a genetic resource for wheat (Triticum aestivum L.; 2n=6x=42; AABBDD) improvement. In order to better understand the evolution of this species, the diversity of Ae. cylindrica was evaluated along with its progenitors, Ae. markgrafii (Greuter) Hammer (2n=2x=14; CC) and Ae. tauschii Coss. (2n=2x=14; DD), using chloroplast and nuclear microsatellite markers. Ae. cylindrica had lower levels of plastome and nuclear diversity than its progenitors. The plastome diversity of Ae. cy
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25

Ndou, Vuledzani Nico. "Chemical mutagenesis of wheat for herbicide resistance." Thesis, 2012. http://hdl.handle.net/10413/10040.

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Weed infestation is one of the yield limiting factors in crop production. Weeds have negative effect on crop growth and productivity due to competition, allelopathy or hosting other harmful organisms. For large-scale wheat production, the use of wide spectrum pre-emergence or post-emergence herbicides remains the most valuable weed control tool. In South Africa, annual grass weeds are a major wheat production constraint, which is usually managed through application of pre-emergence herbicides. Due to limited water availability and low soil moisture content, these herbicides can often become in
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26

Leetch, Michael Scott. "Evaluation of chlorsulfuron for weed control in winter wheat (Triticum aestivum L.) and its effect on subsequent recropping with soybeans (Glycine max (L.) Merr.) or grain sorghum (Sorghum bicolor (L.) Moench)." 1985. http://hdl.handle.net/2097/27481.

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27

Wilcox, Douglas Howard. "Biology and control of Bromus pectinatus Thunb." 2009. http://hdl.handle.net/1993/3122.

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Investigations into the biology and control of the annual grassy weed Bromus pectinatus Thunb. were conducted at the National Plant Breeding Station, Njoro, Kenya, from 1982 to 1984. Pot growth of B. pectinatus was influenced by soil type and microclimate, but not by seed origin. B. pectinatus was germinated and grown in amended and untreated soils ranging in pH from 3.05 to 8.13. Soils with a pH near 3 could not support growth or germination of B. pectinatus. B. pectinatus grew best on a soil of pH 6.55 and when soil pH influenced germination the optimum soil pH was 6.0. Exposure to light in
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