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Water relations and drought tolerance of four turfgrasses

Qian, Y.L ; Fry, J.D

Journal of the American Society for Horticultural Science, 1997-01, Vol.122 (1), p.129-133 [Periódico revisado por pares]

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Título:
Water relations and drought tolerance of four turfgrasses
Autor: Qian, Y.L ; Fry, J.D
Assuntos: ADAPTACION ; ADAPTATION ; ALTURA ; BUCHLOE DACTYLOIDES ; CONTENIDO DE AGUA EN EL SUELO ; CORTE ; CUTTING ; CUTTING FREQUENCY ; CYNODON ; CYNODON DACTYLON ; CYNODON TRANSVAALENSIS ; DECOUPAGE ; DROUGHT RESISTANCE ; FESTUCA ARUNDINACEA ; FEUILLE ; FRECUENCIA DE LAS COSECHAS ; FREQUENCE DE RECOLTE ; HARVESTING FREQUENCY ; HAUTEUR ; HEIGHT ; HOJAS ; LEAVES ; OSMOSE ; OSMOSIS ; OSMOTIC ADJUSTMENT ; PLANT CONTAINERS ; PLANT WATER RELATIONS ; PLANTAS DE MACETAS ; PLANTE EN POT ; POT PLANTS ; RECIPIENT DE CULTURE ; RECIPIENTE DE CULTIVO ; RELACIONES PLANTA AGUA ; RELATION PLANTE EAU ; RESISTANCE A LA SECHERESSE ; RESISTENCIA A LA SEQUIA ; SOIL WATER CONTENT ; STRESS RESPONSE ; TENEUR EN EAU DU SOL ; ZOYSIA JAPONICA
É parte de: Journal of the American Society for Horticultural Science, 1997-01, Vol.122 (1), p.129-133
Notas: F60
1997059472
Descrição: Greenhouse studies were conducted on three warm-season turfgrasses, 'Midlawn' bermudagrass [Cynodon dactylon (L.) Pers. X C. transvaalensis Burtt-Davy], Prairie buffalo grass [Buchloe dactyloides (Nutt.) Eagelm.], and 'Meyer' zoysiagrass (Zoysia japonica Steud.), and a cool-season turfgrass, 'Mustang' tall fescue (Festuca arundinacea Schreb.) to determine water relations and drought tolerance characteristics by subjecting container-grown grasses to drought and potential relationships between osmotic adjustment (OA) and turf recovery after severe drought. Tall fescue was clipped at 6.3 cm once weekly, whereas warm-season grasses were clipped at 4.5 cm twice weekly. The threshold volumetric soil water content (SWC) at which a sharp decline in leafwater potential occurred was higher for tall fescue than for warm-season grasses. Buffalograss exhibited the lowest and tall fescue exhibited the highest reduction in leaf pressure potential per unit decline in leaf water potential during dry down. Ranking of grasses for magnitude of OA was buffalograss (0.84 MPa) zoysiagrass (0.77 MPa) bermudagrass (0.60 MPa) tall fescue (0.34 MPa). Grass coverage 2 weeks after irrigation was resumed was correlated positively with magnitude of OA (r = 0.66, P 0.05)
Idioma: Inglês

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Water relations and drought tolerance of four turfgrasses

Qian, Y.L ; Fry, J.D

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