Full TGIF Record # 233872
Item 1 of 1
DOI:10.1016/j.ufug.2013.07.006
Web URL(s):http://www.sciencedirect.com/science/article/pii/S1618866713000836
    Last checked: 12/09/2013
    Access conditions: Item is within a limited-access website
Publication Type:
i
Refereed
Author(s):Ntoulas, Nikolaos; Nektarios, Panayiotis A.; Charalambous, Eleutherios; Psaroulis, Achilleas
Author Affiliation:Laboratory of Floriculture and Landscape Architecture, Department of Crop Science, Agricultural University of Athens, Athens, Greece
Title:Zoysia matrella cover rate and drought tolerance in adaptive extensive green roof systems
Source:Urban Forestry & Urban Greening. Vol. 12, No. 4, 2013, p. 522-531.
# of Pages:10
Publishing Information:Jena, Germany: Urban & Fischer
Keywords:TIC Keywords: Bulk density; Composts; Desert climate; Drought resistance; Normalized Difference Vegetation Index; Particle size; Peat soils; Percent living ground cover; Pumice soils; Roofscapes; Sandy loam soils; Substrates; Turfgrass quality; Urban habitat; Zeolitic soils; Zoysia matrella
Cultivar Names:Zeon
Abstract/Contents:"Turfgrass use in adaptive extensive green roof systems could provide a sustainable solution for increasing urban greening in semi-arid regions. The aim of the study was as follows: (i) to investigate the effects of four different substrate formulations from locally available materials (S15:Pum60:P20:Z5, S15:Pum60:C20:Z5, S30:Pum40:P20:Z10, and S30:Pum40:C20:Z10, where S, sandy loam soil; Pum, pumice; P, peat; C, compost; and Z, zeolite in volumetric proportions as indicated by their subscripts), and two substrate depths (7.5 cm and 15 cm) on the lateral growth of Manilagrass (Zoysia matrella L. [Merr.] 'Zeon'); (ii) to evaluate the capacity of locally produced compost to be substituted for peat as an organic substrate amendment in an effort to reduce its horticultural use; (iii) to determine the effect of increasing soil participation in substrate formulations on growth and drought resistance of Manilagrass; (iv) to evaluate the effects of the four substrate types and two substrate depths on Manilagrass drought resistance. The measurements included: (a) determination of substrate characteristics, such as particle size distribution, saturated and dry bulk density, total porosity, water potential curves, in situ substrate moisture, pH and electrical conductivity and (b) determination of turfgrass quality and physiological status that included green turf cover (GTC), normalized difference vegetation index (NDVI), and leaf stomatal resistance (LSR). It was found that during establishment, when adequate irrigation of turfgrass was applied, the deeper profiles (15 cm) combined with compost-amended substrates (S15:Pum60:C20:Z5 and S30:Pum40:P20:Z10) provided higher GTC values while the shallow profiles (7.5 cm) with peat-amended substrates (S15:Pum60:P20:Z5 and S30:Pum40:P20:Z10) provided the lowest GTC. The opposite phenomenon was observed during water-deficit periods, since the peat-amended substrate S15:Pum60:P20:Z5 combined with the deeper profile (15 cm) resulted in the least drought stress imposition to Manilagrass while providing the highest GTC and NDVI and the lowest LSR values. By contrast, the compost-amended substrates S15:Pum60:C20:Z5 and S30:Pum40:C20:Z10 increased the drought stress imposition to Manilagrass when combined with shallow profiles (7.5 cm). Substrate depth was the most influential factor, since Manilagrass drought stress was alleviated as substrate depth increased from 7.5 cm to 15 cm."
Language:English
References:41
Note:Figures
Tables
Graphs
See Also:Other items relating to: Breeding for Drought
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Ntoulas, N., P. A. Nektarios, E. Charalambous, and A. Psaroulis. 2013. Zoysia matrella cover rate and drought tolerance in adaptive extensive green roof systems. Urban Forestry & Urban Greening. 12(4):p. 522-531.
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DOI: 10.1016/j.ufug.2013.07.006
Web URL(s):
http://www.sciencedirect.com/science/article/pii/S1618866713000836
    Last checked: 12/09/2013
    Access conditions: Item is within a limited-access website
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