Lateral Spread and Divot Recovery of Creeping Bentgrass Cultivars in Non-mowed and Mowed Settings

Jones, Marcus; Christians, Nick E.

doi:10.31274/farmprogressreports-180814-2155

Cited by 2 publications

(3 citation statements)

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“…In low heights of cut like those on a putting green, vertical growth rate is of minimal benefit in masking canopy voids, and TE has been shown to have minimal impact on lateral recovery in some studies due to increased levels of cytokinin production leading to increased tiller production after several sequential applications (Ervin et al 2002; Ervin and Zhang 2007). Variability in recovery time between sites could be partially attributed to turfgrass cultivar as has been demonstrated in previous studies (Jones and Christians 2009; Karcher et al 2005).…”

Section: Resultssupporting

confidence: 61%

Effect of core cultivation, fertility, and plant growth regulators on recovery of voided creeping bentgrass greens canopies following annual bluegrass control via methiozolin

Venner¹,

Ervin

Koo

et al. 2023

Weed Technol

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Methiozolin is commonly used for the safe and selective removal of annual bluegrass from creeping bentgrass golf greens. Studies were conducted in 2013 and 2014 with the objective of assessing fertility programs consisting of synthetic fertilizers and biostimulants, with and without the plant growth regulator trinexapac-ethyl, to aid putting green canopy recovery following annual bluegrass removal via methiozolin. Additional studies were conducted to compare recovery of creeping bentgrass following an aggressive core aerification event with fertility programs with and without methiozolin. In all cases, the addition of 7 kg ha-1 of N, P, and K from fertilizer or biostimulant biweekly to greens increased turfgrass recovery time by 1 to 3 wk compared to a standard green’s fertility program alone. Creeping bentgrass treated with biostimulants recovered equivalent to or quicker than creeping bentgrass treated with synthetic fertilizer (SF) in all cases. In the presence of methiozolin treatments, trinexapac-ethyl reduced time to 90% recovery (T90) by 0.25 to 0.5 wk at two locations and increased T90 recovery time by 0.1 wk at one location. Otherwise, SF plus trinexapac-ethyl treated plots were equivalent to SF-only plots. Methiozolin slowed turfgrass recovery time at one location where severe drought stress occurred but not at the other location that did not experience drought stress. These results suggest that turf managers should increase fertilizer treatments but will not need to discontinue trinexapac-ethyl use to maximize creeping bentgrass recovery following annual bluegrass control with methiozolin. These data also suggest that methiozolin has the potential to negatively affect creeping bentgrass recovery when drought stress is experienced.

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Section: Resultssupporting

confidence: 61%

Effect of core cultivation, fertility, and plant growth regulators on recovery of voided creeping bentgrass greens canopies following annual bluegrass control via methiozolin

Venner¹,

Ervin

Koo

et al. 2023

Weed Technol

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“…Seaside II is a salt tolerant cultivar (Marcum, 2001) and T-1 is a newer cultivar with high shoot density (Brilman, 2005;Jones and Christians, 2009). The plant materials were maintained in a greenhouse with temperatures of 20/10°C (day/night), a 14-h photoperiod, and minimum midday photosynthetically active radiation of 400 μmol m -2 s -1 supplemented with metal halide lamps.…”

Section: Methodsmentioning

confidence: 99%

“…Two cultivars of creeping bentgrass, Seaside II and T-1, were used in this study. Seaside II is a salt tolerant cultivar (Marcum, 2001) and T-1 is a newer cultivar with high shoot density (Brilman, 2005;Jones and Christians, 2009). The grass for both repetitions was seeded on 15 Aug. 2011 at 60 kg ha -1 to 15 by 15 cm square pots and filled with a growth medium of sand:peat mixture (90:10 volumetric).…”

Section: Methodsmentioning

confidence: 99%

Physiological Responses of Creeping Bentgrass Cultivars to Carbonate, Chloride, and Sulfate Salinity

Qiao

Chang

2013

Crop Science

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Evaluation of creeping bentgrass (Agrostis stolonifera L.) salt tolerance often showed inconsistent results. The objective of this study was to investigate the reactions of ‘Seaside II’ and ‘T‐1’ to NaCl, Na2CO3, Na2SO4, and CaCl2, each at concentrations of 0, 25, 75, 125, 175, and 225 mM. Chlorophyll a (Chla) content was the lowest in the CaCl2 treatment followed by Na2CO3 and Na2SO4 and highest in NaCl whereas chlorophyll b (Chlb) content was lowest in Na2CO3 followed by CaCl2 and Na2SO4 and highest in NaCl. Turfgrass visual quality and green density were reduced the most by the Na2CO3 and CaCl2 treatments. Evapotranspiration (ET) decreased in the order of treatments CaCl2, Na2SO4, Na2CO3, and NaCl at 1 wk after treatment (WAT), but at 4 WAT there were no difference among CaCl2, Na2SO4, and Na2CO3. Significant salt type × concentration interaction existed, and the first order or second order coefficient of regression equation ranked the changing rate of physiological parameters differently in different salts. Leaf K+:Na+ ratio was affected differently by salts and a threshold of 1 appeared at different salt concentrations depending on salt types and cultivars. The pH, osmotic potential, and electrical conductivity of salt solutions were confounded making the interpretation of mechanisms of physiological stress difficult. Nevertheless, this study showed that different salts rank creeping bentgrass salt tolerance differently.

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Lateral Spread and Divot Recovery of Creeping Bentgrass Cultivars in Non-mowed and Mowed Settings

Cited by 2 publications

References 0 publications

Effect of core cultivation, fertility, and plant growth regulators on recovery of voided creeping bentgrass greens canopies following annual bluegrass control via methiozolin

Effect of core cultivation, fertility, and plant growth regulators on recovery of voided creeping bentgrass greens canopies following annual bluegrass control via methiozolin

Physiological Responses of Creeping Bentgrass Cultivars to Carbonate, Chloride, and Sulfate Salinity

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