Comparison between pressure-volume and dewpoint-hygrometry techniques for determining the water relations characteristics of grass and legume leaves

Wilson, JR; Fisher, M. J.; Schulze, E.-D.; Dolby, G. R.; Ludlow, M. M.

doi:10.1007/bf00344838

Cited by 200 publications

(84 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Leaf tissues were thawed and centrifuged at 1,200 X g for 25 min at 4"C to extract the cell sap. Osmotic potential (f,,) of lhe cell sap was measured using a Wescor model 5,500 vapor pressure osmometer (Wescor, Logan, UT), and osmotic potential at full turgor (f"(loo)) was calculated by adjusting for the relative water content (RWC) as described by Wilson et al (1979). RWC was measured as described by Saneoka et al (1996).…”

Section: Methodsmentioning

confidence: 99%

Effect of salinity on growth and solute accumulation in two wheat lines differing in salt tolerance

Saneoka

Shiota

Kurban

et al. 1999

Soil Science and Plant Nutrition

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Effect of salinity on growth and solute accumulation in two wheat lines differing in salt tolerance

Saneoka

Shiota

Kurban

et al. 1999

Soil Science and Plant Nutrition

View full text Add to dashboard Cite

“…Osmotic potential at full p ( sfp ) and the apoplastic water content (RWCapo) were calculated by extrapolating the linear portion of the curve to the y-axis and to the x-axis, where sfp is the water potential at RWC = 0 and RWCapo is the RWC at 1/ = 0. The bulk modulus of elasticity ( ) at 100 % RWC was estimated by assuming an almost linear relationship between and RWC, using the methods of Wilson et al (1979). These data were obtained at the end of the drought period in all the N treatments, in wellwatered and water-stressed plants.…”

Section: Measurementsmentioning

confidence: 99%

Moderate water stress affects tomato leaf water relations in dependence on the nitrogen supply

García¹,

Marcelis²,

Garcı́a-Sánchez³

et al. 2007

Biologia plant.

View full text Add to dashboard Cite

The responses of water relations, stomatal conductance (g s ) and growth parameters of tomato (Lycopersicon esculentum Mill. cv. Royesta) plants to nitrogen fertilisation and drought were studied. The plants were subjected to a long-term, moderate and progressive water stress by adding 80 % of the water evapotranspirated by the plant the preceding day. Well-watered plants received 100 % of the water evapotranspirated. Two weeks before starting the drought period, the plants were fertilised with Hoagland´s solution with 14, 60 and 110 mM NO 3 -(N14, N60 and N110, respectively). Plants of the N110 treatment had the highest leaf area. However, g s was higher for N60 plants and lower for N110 plants. At the end of the drought period, N60 plants showed the lowest values of water potential ( w ) and osmotic potential ( s ), and the highest values of pressure potential ( p ). N60 plants showed the highest s at maximum p and the highest bulk modulus of elasticity.Additional key words: Lycopersicon esculentum, osmotic adjustment, stomatal conductance, water potential.

show abstract

“…Dry weight was determined on seedlings kept at 70 o C for 48 hours. All findings were analysed in accordance with Wilson et al [40]. As well as measuring initial water potential (Ψ) and actual percentage of water content (WC), the osmotic potential at full turgor (Ψ π100 ), the percentage of apoplastic water (B), the percentage of water deficit at incipient plasmolysis (WD 0 ) and the maximum elasticity module (ε) were also estimated.…”

Section: Pressure-volume Curvesmentioning

confidence: 99%

Resistance to water stress in seedlings of eight European provenances of Pinus halepensis Mill.

et al. 2001

View full text Add to dashboard Cite

-In this study, pressure/volume curves were performed on 24-week-old seedlings of eight European provenances of Pinus halepensis Mill. subsp. halepensis after one week of water stress (-0.033, -0.4, -0.8, -1.2, -1.6 MPa). P. halepensis showed osmotic adjustments as a response to water stress, although the response varied between the provenances. Apoplastic water remained relatively constant. The elasticity module did not differ significantly. Water deficit at incipient plasmolysis and water content decreased as the stress increased. Water potential was markedly negative, even in seedlings not subjected to stress. The provenances from less xeric sites behaved similarly to species from non-arid sites, while those from more xeric sites displayed the strategy typical of drought-tolerant species. The impact on all provenances of one week of low-intensity water stress (-0.4 MPa) was slight. As the stress increased, the response varied between the provenances: N-Eubea > Kassandra > Litorale tarantino ≅ Guardiola > Otricoli ≅ E-Bouches du Rhône ≥ Hérault ≅ N-Vaucluse (in decreasing order).Aleppo pine / drought resistance / geographic variation / pressure-volume curves / provenances Résumé -Résistance au stress hydrique des plantules appartenant à huit provenances européennes de Pinus halepensis Mill. Sur des plantules âgées de 24 semaines, appartenant à 8 provenances de Pinus halepensis (Mill.) subsp. halepensis, des courbes pression-volume ont été effectuées après une semaine de stress hydrique (-0,033, -0,4, -0,8, -1,2, -1,6 MPa). P. halepensis a montré des ajustements osmotiques en réponse au stress hydrique, bien que de façon différenciée parmi les provenances. L'eau apoplastique a été relativement constante. Le module d'élasticité n'a pas différé significativement. Le déficit hydrique en début de plasmolyse et la teneur en eau ont baissé avec l'augmentation du stress. Le potentiel hydrique a été très négatif, même en absence de stress. Les semences provenant des milieux les moins secs se sont comporté de façon identique aux espèces des milieux non arides, tandis que les provenances originaires des milieux les plus secs ont révélé la stratégie caractéristique des espèces tolérant la sécheresse. En conclusion les provenances ont été insuffisamment influencées par une semaine de stress hydrique de faible intensité. En présence d'un accroissement du stress, les réponses ont permis de différencier les provenances : N-Eubea > Kassandra > Litorale tarantino ≅ Guardiola > Otricoli ≅ E-Bouches du Rhône ≥ Hérault ≅ N-Vaucluse (en ordre décroissant).courbes pression-volume / Pin d'Alep / provenances / résistance à la sécheresse / variation géographique Ann. For. Sci. 58 (2001) [663][664][665][666][667][668][669][670][671][672] 663

show abstract

Comparison between pressure-volume and dewpoint-hygrometry techniques for determining the water relations characteristics of grass and legume leaves

Cited by 200 publications

References 19 publications

Effect of salinity on growth and solute accumulation in two wheat lines differing in salt tolerance

Effect of salinity on growth and solute accumulation in two wheat lines differing in salt tolerance

Moderate water stress affects tomato leaf water relations in dependence on the nitrogen supply

Resistance to water stress in seedlings of eight European provenances of Pinus halepensis Mill.

Contact Info

Product

Resources

About