Field Evaluation of Reduced-Growth, Roundup® Ready Kentucky Bluegrass in Competitive Stands of Turf

Blume, Christopher; Fei, S.; Christians, Nick E.; Stier, John C.

doi:10.17660/actahortic.2008.783.38

Cited by 2 publications

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“…Gardner et al (2004) reported that the lateral spread of glyphosate-resistant creeping bentgrass in mowed swards of perennial ryegrass, bermudagrass, and St. Augustinegrass was similar to that of nontransgenic bentgrass. Blume et al (2008) found that Kentucky bluegrass lines expressing both glyphosate-resistance and overexpressing GA-20 oxidase (for dwarfi ng) had either shorter or longer rhizomes than the reference cultivars, depending on the line and location of the study, but the lengths were always shorter than those from tissue-culture lines.…”

Section: Invasive Speciesmentioning

confidence: 94%

Turfgrass Benefits and Issues

Stier

Steinke

Ervin

et al. 2015

Turfgrass: Biology, Use, and Management

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Section: Invasive Speciesmentioning

confidence: 94%

Turfgrass Benefits and Issues

Stier

Steinke

Ervin

et al. 2015

Turfgrass: Biology, Use, and Management

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“…Johnson et al (2006) have researched pollen‐mediated flow from transgenic Kentucky bluegrass to determine the environmental impact of the transformed grasses, and Blume et al (2008) have researched transgenic bluegrasses in a mown, competitive setting to assess vigor and competitiveness. The current study focuses on a field evaluation of transgenic Kentucky bluegrasses to evaluate potential ecological risks and agronomic performance in a nonmown, noncompetitive setting by comparing the vegetative growth and reproductive performance of the transgenic lines with nontransformed lines and reference cultivars.…”

mentioning

confidence: 99%

Field Evaluation of Reduced‐Growth, Glyphosate‐Resistant Kentucky Bluegrass in a Noncompetitive Setting

2010

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Reduced‐growth, glyphosate‐resistant Kentucky bluegrass (Poa pratensis L.) has recently been developed. There has been no comparative analysis of the newly developed transgenic Kentucky bluegrass lines to conventional cultivars or tissue culture‐derived lines to determine vegetative and flower characteristic differences and similarities. This study measured the vegetative and reproductive characteristics of the transgenic lines, tissue culture‐derived control lines, and reference cultivars during 2004 and 2005, in Ames, IA. The study was conducted in a noncompetitive, nonmown, spaced plant setting. Data collection of vegetative characteristics included rhizome spread and total plant area. Data collection for flower characteristics included flower phenology and morphological characteristic measurements, including panicle length, number of spikelets per panicle, and flag leaf characteristics. Transgenic lines as a group exhibited 29 and 32% less rhizome spread than the reference cultivars and tissue culture‐derived control lines, respectively, in 2004 and 37 and 40% less rhizome spread than reference cultivars and tissue culture‐derived control lines, respectively, in 2005. Flower emergence times for all transgenic lines were comparable to their respective tissue culture‐derived control lines and reference cultivars.

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Field Evaluation of Reduced-Growth, Roundup® Ready Kentucky Bluegrass in Competitive Stands of Turf

Cited by 2 publications

References 0 publications

Turfgrass Benefits and Issues

Turfgrass Benefits and Issues

Field Evaluation of Reduced‐Growth, Glyphosate‐Resistant Kentucky Bluegrass in a Noncompetitive Setting

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