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- BibTeX key
- Hansen1988
- entry type
- article
- year
- 1988
- journal
- Botanica Acta
- pages
- 76--82
- volume
- 101
- citeulike-article-id
- 1523738
- comment
- (private-note)Since the pure solvent in a dilute solution crystallises at temperatures above the eutectic point, freezing of plant tissues inevitably results in a concentration of the cellular solutes. It's accepted that intracellular water remains liquid while the extracellular compartment freezes. Equilibrium freezing is where the water can move freely between both compartments to keep an equilibrium (Olien 1967) Ideal equilibrium freezing occurs when the water potential of the leaf results from the osmotic activity only. (Gusta 1975) the equations you need for psychrometry Comparison of theory to psychrometric measurements. psychrometer methods measurement of leaf water content by NMR. they did it all on thawing, rather than on freezing: they froze down to a low temperature and then thawed slowly whilst measuring stuff because of supercooling. But this will screw up all sorts of things, no? in ivy, it was ideal, but in barley it was non-ideal- there was a pressure component (or a matric component??? or did they discount that) at the lower temperatures
- priority
- 2
- posted-at
- 2007-07-31 06:20:30
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%1 Hansen1988
%A Hansen, J.
%A Beck, E.
%D 1988
%J Botanica Acta
%K bibtex-import, citeulikeExport cryo, freezing, ice, physics, spread
%P 76--82
%T Evidence for ideal and non-ideal equilibrium freezing of leaf water in frosthardy ivy (Hedera helix) and winter barley (Hordeum vulgare)
%V 101
@article{Hansen1988,
added-at = {2019-03-31T01:14:40.000+0100},
author = {Hansen, J. and Beck, E.},
biburl = {https://www.bibsonomy.org/bibtex/2bf001637e46366323b7f6e810843b5c6/dianella},
citeulike-article-id = {1523738},
comment = {(private-note)\textit{Since the pure solvent in a dilute solution crystallises at temperatures above the eutectic point, freezing of plant tissues inevitably results in a concentration of the cellular solutes.} It's accepted that intracellular water remains liquid while the extracellular compartment freezes. Equilibrium freezing is where the water can move freely between both compartments to keep an equilibrium (Olien 1967) Ideal equilibrium freezing occurs when the water potential of the leaf results from the osmotic activity only. (Gusta 1975) the equations you need for psychrometry Comparison of theory to psychrometric measurements. psychrometer methods measurement of leaf water content by NMR. they did it all on thawing, rather than on freezing: they froze down to a low temperature and then thawed slowly whilst measuring stuff because of supercooling. But this will screw up all sorts of things, no? in ivy, it was ideal, but in barley it was non-ideal- there was a pressure component (or a matric component??? or did they discount that) at the lower temperatures},
interhash = {2d27f2b002f0f0b9895cfe328e259cc3},
intrahash = {bf001637e46366323b7f6e810843b5c6},
journal = {Botanica Acta},
keywords = {bibtex-import, citeulikeExport cryo, freezing, ice, physics, spread},
pages = {76--82},
posted-at = {2007-07-31 06:20:30},
priority = {2},
timestamp = {2019-03-31T01:16:26.000+0100},
title = {{Evidence for ideal and non-ideal equilibrium freezing of leaf water in frosthardy ivy (Hedera helix) and winter barley (Hordeum vulgare)}},
volume = 101,
year = 1988
}