Stand Structure and Light Penetration. IV. A Sensor for Measuring Photosynthetically Active Radiation

Fitter, D. J.; Knapp, Patrick; Wilson, J. Warren

doi:10.2307/2402973

Cited by 12 publications

(1 citation statement)

References 27 publications

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“…Roots of seedlings were maintained in culture solution at the appropriate salinity during analysis in a cuvette separated from the measurement chamber by a water-impermeable mastic. Daytime rates of transpiration were measured at an irradiance similar to that during growth (50 W m~^ as measured by a filtered silicon blue photocell; Fitter, Knapp & Warren-Wilson, 1980) and night-time rates of transpiration were estimated from measurements made with the plants in darkness.…”

Section: Rates Of Transpirationmentioning

confidence: 99%

SALT TOLERANCE IN THE HALOPHYTE SUAEDA MARITIMA (L.) DUM.

Clipson

Flowers

1987

New Phytologist

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SUMMARYRates of ion transport and transpiration were measured during the day and night in whole seedlings of Suaeda maritima growing over a range of salinities, in order to calculate concentrations of sodium and potassium in the xylem during these periods. Mean sodium concentration in the xylem was maximal at 56 mol m~^ Na with an external salinity of 200 mol m~^ NaCl. The sodium concentration in the xylem was greater in the dark than in the light at all external salinities investigated. Comparison of the external sodium with that in the xylem indicated that sodium was more strongly excluded from the transpiration stream as salinity increased. The mean concentration of potassium in the xylem declined as external NaCl concentration increased, although selectivity for potassium increased at higher salinities. Results are discussed in relation to osmotic adjustment in S. maritima.

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Section: Rates Of Transpirationmentioning

confidence: 99%