Jointed Goatgrass Management with Imazamox-Resistant Cultivars in a Winter Wheat-Fallow Rotation
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Jointed Goatgrass Management with Imazamox-Resistant Cultivars in a Winter Wheatâ•fiFallow Rotation
Jointed goatgrass (Aegilops cylindrica Host) is an economically important weed in winter wheat (Triticum aestivum L.)–fallow production regions of the United States. Few options exist for management of jointed goatgrass in winter wheat due to the close genetic relationship between the two species. This research evaluated use of imazamox herbicide (2-[(RS)-4-isopropyl-4methyl-5-oxo-2-imidazolin-...
متن کاملJointed Goatgrass (Aegilops cylindrica) by Imidazolinone-Resistant Wheat Hybridization under Field Conditions
Gene flow between jointed goatgrass and winter wheat is a concern because transfer of herbicide-resistance genes from imidazolinone-resistant (IR) winter wheat cultivars to jointed goatgrass could restrict weed-management options for this serious weed of winter wheat cropping systems. The objectives of this study were (1) to investigate the frequency of interspecific hybridization between IR wh...
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Imidazolinone-resistant (IR) wheat (Triticum aestivum L.) was released for commercial production in portions of the USA in 2002 and has provided growers with a new technology to selectively control winter annual grass weeds. Imidazolinone herbicides inhibit acetolactate synthase (ALS) in susceptible plants; however, IR wheat has an altered target site which confers resistance to these herbicide...
متن کاملSelected Physical Properties of Jointed Goatgrass (Aegilops cylindrica Host.)
Selected physical properties of jointed goatgrass samples collected in western Nebraska and eastern Colorado were determined. Measured properties were spikelet dimensions (length 10.8 ± 0.35 mm; width 2.59 ± 0.25 mm), particle density (0.761 ± 0.016 g/m3), bulk density (351 ± 26.9 kg/m3), terminal velocity (301 ± 25.9 m/min), angle of repose (26.3 ± 0.286°), internal coefficient of friction (0....
متن کاملOne-time Summer Tillage of Chemical Fallow in a Dryland Winter Wheat Rotation Does Not Negate Long-term Benefits Accrued under No-till Management
W hile producers who practice no-till are typically committed to keeping steel out of the ground, there are several reasons why occasional tillage may prove beneficial and offer solutions to some no-till related problems. These include dispersing low-mobility nutrients (i.e. phosphorous that can accumulate near soil surface), reducing soil compaction, and controlling weeds. It is known that til...
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ژورنال
عنوان ژورنال: Crop Science
سال: 2008
ISSN: 0011-183X
DOI: 10.2135/cropsci2007.12.0698