Plant Growth Regulator and Mowing Height Effects on Seasonal Root Growth of Penncross Creeping Bentgrass

Fagerness, Matthew J.; Yelverton, Fred H.

doi:10.2135/cropsci2001.1901

Cited by 46 publications

(42 citation statements)

References 11 publications

(19 reference statements)

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“…L‐93 creeping bentgrass root mass generally declined from June (4 WAIT) to August (12 WAIT) which agrees with previous research on ‘Penncross’ creeping bentgrass golf greens (6). Ethephon induced root growth restrictions on creeping bentgrass are consistent with previous experiments on Kentucky bluegrass and perennial ryegrass (2,10).…”

Section: Growth Measurementssupporting

confidence: 90%

“…Ethephon induced root growth restrictions on creeping bentgrass are consistent with previous experiments on Kentucky bluegrass and perennial ryegrass (2,10). Shoot growth inhibition from TE generally does not restrict bentgrass rooting (6) but post‐inhibition shoot growth enhancements from reduced TE efficacy apparently exacerbated summer root mass decline in these experiments. Applications of TE appear to initially mask rooting restrictions from ethephon but these effects were inconsistent throughout the experiment.…”

Section: Growth Measurementsmentioning

confidence: 86%

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Ethephon and Trinexapac-ethyl Influence Creeping Bentgrass Growth, Quality, and Putting Green Performance

McCullough

Li²,

McCarty³

et al. 2006

Ats

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Combining ethephon with trinexapac‐ethyl effectively inhibits Poa annua L. seedheads and applying this combination during summer months may enhance growth regulation of creeping bentgrass (Agrostis palustris Huds.) relative to exclusive trinexapac‐ethyl use. To test this hypothesis, a two‐year field experiment investigated growth, quality, and ball‐roll distances of an ‘L‐93’ creeping bentgrass golf green treated with ethephon at 0, 3.8, or 7.6 kg a.i./ha with trinexapac‐ethyl at 0 or 0.04 kg a.i./ha every 4 weeks over 12 weeks. Ethephon provided substantial clipping yield reductions but did not enhance ball‐roll distances alone or improve trinexapac‐ethyl efficacy. Trinexapac‐ethyl most effectively suppressed creeping bentgrass shoot growth one to two weeks after treatments but post‐inhibition shoot growth enhancement occurred which exacerbated summer root decline. Overall, clipping reductions from ethephon do not enhance ball‐roll distances and ethephon does not appear to enhance growth regulation effects of trinexapac‐ethyl on creeping bentgrass golf greens.

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Section: Growth Measurementssupporting

confidence: 90%

Section: Growth Measurementsmentioning

confidence: 86%

Ethephon and Trinexapac-ethyl Influence Creeping Bentgrass Growth, Quality, and Putting Green Performance

McCullough

Li²,

McCarty³

et al. 2006

Ats

View full text Add to dashboard Cite

show abstract

“…These reductions were higher than those found in the literature (Fagerness and Yelverton, 2001;Beasley et al, 2005;McCullough et al, 2007;Maciel et al, 2011).…”

Section: It Is Observed Incontrasting

confidence: 59%

Development of Different Grass Species with the Use of the Growth Regulator Trinexapac-Ethyl

2017

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-The use of synthetic compounds to retard the growth of lawns aims at reducing the number of operations for their maintenance. Thus, the main goal of the present study was to evaluate the effect of different doses of trinexapac-ethyl on the development and rooting of five different grass species. Bahiagrass, St. Augustine grass, Japanese lawn grass, Bermuda grass and, broadleaf carpetgrass were grown in pots of 20 L. The experimental design was completely randomized, with four replications. ) was applied at doses of 113+113, 226+113, 226+226, 452+113, 452+226, 452+452 in a sequential spraying, and also at single doses of 678 and 904. The second application was carried out 14 days after the first. On the day prior to applications all species were cut at 3 cm height. The phytotoxicity evaluations were performed weekly, and evaluations on plant height, number and height of inflorescences, biomass of aerial parts and roots were carried out 35 days after the second application. The trinexapac-ethyl application was effective in inhibiting the development of the Japanese lawn grass, Bermuda grass and broadleaf carpetgrass when applied in sequential doses higher than 226 g ha and, the visual appearance of lawns was not affected. In the case of St. Augustine grass and Bahiagrass species, the growth regulator did not promoted reduction in the growth of both grass species. Keywords: Paspalum notatum, Stenotaphrum secundatum, Zoysia japonica,Cynodon dactylon, Axonopus compressus, plant growth regulator. RESUMO -

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“…The different microenvironments created by the different mowing heights did not affect the performance of S. minor two weeks after application. Micro-environments caused by higher grass canopies increased disease incidence of certain turfgrass pathogens (Fagerness & Yelverton 2001, Martin et al 2001, but this may not be the case with a necrotrophic biological control agent during periods with optimal environmental conditions. Sclerotinia minor as a necrotrophic fungus causes rapid collapse and death of infected plants (Melzer et al 1997) and requires high moisture and a temperature range of 5 Á258C to cause disease (Melzer & Boland 1994).Treatment dates and irrigation (in case there was no rainfall) provided appropriate conditions for dandelion infection by S. minor , negating a possible mowing height effect.…”

Section: Interactions Between Mowing Heights and Biocontrol Treatmentmentioning

confidence: 99%

Impact of mowing and weed control on broadleaf weed population dynamics in turf

Abu-Dieyeh

2005

Journal of Plant Interactions

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Various turf management activities may influence weed population dynamics and interfere with weed control. The effects of a biocontrol agent, Sclerotinia minor , a chemical herbicide, Killex TM , and mowing height on broadleaf weed dynamics were examined in two turfgrass stands for two consecutive years. Mowing did not reduce the population densities of dandelion or the ground cover of broadleaf weeds. In the second year, mowing significantly reduced white clover density, but significantly increased broadleaf plantain density, particularly at the closest mowing height (3 Á5 cm). Apart from the close height, the S. minor and Killex TM treatments were equally effective in suppression of dandelion, white clover, broadleaf plantain, and prostrate knotweed in the second year. Common mallow increased in the herbicide treated plots and other species including yellow woodsorrel, yellow toadflax and lambsquarters increased in abundance in plots mowed at the 3 Á5 cm height and in plots treated with Killex TM . Significant differences between the Killex TM and S. minor treatments on dandelion population dynamics were rarely present and did not favour either treatment. S. minor did not damage the turfgrass, but Killex TM reduced turf quality in 25% of the plots. The application of S. minor with a regular, medium height ( Â/7 cm) mowing regime was highly effective in controlling broadleaf weeds in temperate Kentucky bluegrass turf.

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Plant Growth Regulator and Mowing Height Effects on Seasonal Root Growth of Penncross Creeping Bentgrass

Cited by 46 publications

References 11 publications

Ethephon and Trinexapac-ethyl Influence Creeping Bentgrass Growth, Quality, and Putting Green Performance

Ethephon and Trinexapac-ethyl Influence Creeping Bentgrass Growth, Quality, and Putting Green Performance

Development of Different Grass Species with the Use of the Growth Regulator Trinexapac-Ethyl

Impact of mowing and weed control on broadleaf weed population dynamics in turf

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