Search Results for: Arkansas
Glyphosate resistance in a Johnsongrass (Sorghum halepense) biotype from Arkansas
Abstract: Johnsongrass is one of the most troublesome weeds of the world and is listed as a noxious weed in Arkansas. Reduced johnsongrass control with the recommended application rate of glyphosate (840 g ae ha21) was reported in a continuous soybean field near West Memphis, AR, in the fall of 2007. A greenhouse study was …
Bayer’s GM rice defeat
Text: In a lawsuit over genetically modified (GM) modified rice, jury members in an Arkansas circuit court ruled in March in favor of Riceland Foods of Stuttgart, Arkansas, a rice milling and exporting company, and against Bayer CropScience of Research Triangle Park, North Carolina, and Monheim, Germany. The jury recommended that Bayer pay Riceland $136.8 …
Bar gene transfer from transgenic rice (Oryza sativa) to red rice (Oryza sativa)
Abstract: There are many new developments in biotechnology, and among them are transgenic glufosinate-tolerant rice cultivars, which appear to provide a solution to the question of controlling red rice in cultivated rice. However, outcrossing between red rice and cultivated rice has been documented since 1961, and this is an issue that should be addressed first. …
Fecundity of transgenic wild–crop hybrids of Cucurbita pepo (Cucurbitaceae): implications for crop-to-wild gene flow
Abstract: Hybridization between crops and their weedy or wild relatives is an area of concern because the widespread use of genetically engineered crops may allow novel, beneficial transgenes to enter nearby populations. We compared fitness components of wild Cucurbita pepofrom Arkansas, USA, with wild–crop hybrids derived from yellow squash (a cultivar of C. pepo with …
Glyphosate-resistant Palmer amaranth: A threat to conservation tillage
Abstract: Conservation tillage reduces the physical movement of soil to the minimum required for crop establishment and production. When consistently practiced as a soil and crop management system, it greatly reduces soil erosion and is recognized for the potential to improve soil quality and water conservation and plant available water. Adoption of conservation tillage increased …
Risk assessment of genetically engineered crops: fitness effects of virus-resistance transgenes in wild Cucurbita pepo
Abstract: The development of crops genetically engineered for pathogen resistance has raised concerns that crop-to-wild gene flow could release wild or weedy relatives from regulation by the pathogens targeted by the transgenes that confer resistance. Investigation of these risks has also raised questions about the impact of gene flow from conventional crops into wild plant …
