Search Results

You are looking at 1 - 10 of 244 items for :

  • "Poa pratensis" x
  • HortScience x
Clear All

The bluegrasses, also commonly referred to as meadowgrasses, are one the most economically important genera of the Poaceae ( Huff, 2010 ; Soreng and Barrie, 1999 ). Kentucky bluegrass ( Poa pratensis L.) is the botanical-type species for the

Free access

Kentucky bluegrass ( Poa pratensis L.) is a facultative apomictic cool-season perennial grass species widely used for forage and turf in the United States and Canada ( Huff, 2003 , 2010 ). Although sexuality in kentucky bluegrass can be variable

Free access

-adapted tobacco callus J. Heilongjiang August Firet Land Reclamation University. 9 7 9 Zhang, Y. Li, Z. Li, M. Du, X. 2004 The study of complex alkali–saline stress on four varieties of Poa pratensis Chinese Agricultural Science Bulletin. 20 209 213

Free access

Kentucky bluegrass ( Poa pratensis L.) is a popular turfgrass species throughout its adaptive range. It typically produces a dense stand of turf with dark green color, high overall turf quality, and a wide range of disease tolerance. This makes

Free access

Kentucky bluegrass ( Poa pratensis L.) is a perennial turfgrass species that is widely adapted to many distinct environments. The extensive rhizome system of Kentucky bluegrass gives it the ability to tolerate and recover from many environmental

Free access

Seeds of a Kentucky bluegrass cultivar (Poa pratensis 'SD Common') and two native buffalograss (Buchloe dactyloides) strains, Texas (TX) selection and North Dakota (ND) selection, were tested for their germination tolerance to increasing levels of NaCl at 0, 0.05, 0.1, 0.2, 0.4, 0.6, 0.8, 1.2, 1.6, 2.0, 2.4, 2.8, 3.2% in solution. Both the TX and ND strains of buffalograss exhibited a high degree of salt tolerance with the upper limit of seed germination at 2.8% NaCl (2% to 7% germination after 6 days). At high NaCl concentrations, however, percent seed germination was much greater in the ND strain than the TX strain of buffalograss. For instance, seed germination at 0.8% NaCl was 90% in ND strain and 53% in TX strain as compared to the control. Kentucky bluegrass was least tolerant to NaCl with the upper limit of seed germination at 0.4% NaCl (14.7% germination in 6 days). Seed germination in Kentucky bluegrass was completely inhibited at 0.6% NaCl.

Free access

Abstract

A trial of 38 cultivare of Kentucky bluegrass (Poa pratensis L.) demonstrated genetic differences to an infestation of bluegrass billbug. The correlation coefficient between injury ratings and billbug larval density in sod samples was r = 0.73. Thatch accumulation was not significantly correlated (r = 0.31) with billbug density.

Open Access

Abstract

In a field test of 25 Kentucky bluegrass cultivars (Poa pratensis L.) “common types” were generally more drought tolerant than recently introduced turf types. ‘Code 95’, a common type, and ‘Merion’ exhibited high drought resistance and produced turf of good color, texture, and density. Turf mowed at 3.8 cm was more resistant to drought than turf maintained at 1.9 cm.

Open Access

Abstract

Bensulide [0,0-diisopropyl phosphorodithioate S ester with N-2-mercaptoethyl) benzenesulfonamide] at 13.6 kg/ha reduced sod transplant rooting of ‘Park’, ‘Merion’, and ‘Baron’ Kentucky bluegrass (Poa pratensis L.) when applied either to sod or sodbed. Prosulfalin [N-[[4-(dipropylamino)-3,5-dinitrophenyl] -S,S -dimethylysulfilimine] at 2.3 kg/ha applied to the sodbed reduced sod transplant rooting of ‘Park’ and ‘Baron’. Benefin (N-butyl-N-ethyl-α,α,α-trifluoro-2,6-dinitro-p-toluidine) at 2.3 kg/ha reduced rooting of ‘Baron’ when applied to the sodbed. Sod transplant rooting of ‘Baron’ was significantly reduced by siduron [l-(2-methylcyclohexyl)-3-phenylurea] at 13.6 kg/ha, oxadiazon [2-tert-butyl-4-(2,4-dichloro-5-isopropyoxyphenyl)-△2-1,3,4-oxadizolin-5-one] at 4.6 kg/ha, prosulfalin at 2.3 kg/ha, and benefin at 2.3 kg/ha when applied to sod prior to transplanting. ‘Merion’ and ‘Park’ were not influenced by these treatments. Regardless of herbicide treatment, ‘Baron’ had a lower sod transplant rooting strength when compared to ‘Park’ and ‘Merion’.

Open Access

bluegrass ( Poa pratensis L.) turf sod in West Kingston, RI (n = 93). Fig. 1. Probability curves of obtaining a producer rating of at least “Acceptable” (includes “Acceptable” and “Preferred” categories) and ‘Preferred’ only sod strength in relation to peak

Free access