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Web URL(s): | https://academic.oup.com/aob/article/78/5/605/2587527/ Last checked: 03/01/2017 Requires: PDF Reader |
Publication Type:
| Refereed |
Author(s): | Repo, Tapani;
Pulli, Seppo |
Author Affiliation: | Repo, University of Joensuu, Faculty of Forestry, P.O. Box 111, FIN-80101 Joensuu; Pulli, Agricultural Research Centre, Department of Crop and Soil Science, FIN-31600 Jokioinen, Finland |
Title: | Application of impedance spectroscopy for selecting frost hardy varieties of English ryegrass |
Source: | Annals of Botany. Vol. 78, No. 5, November 1996, p. 605-609. |
Publishing Information: | London, Oxford University Press |
# of Pages: | 5 |
Keywords: | TIC Keywords: Cold acclimation; Lolium perenne; Resistance; Frost injury; Spectroscopy
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Abstract/Contents: | "The frost hardening and frost damage of 12 varieties of English ryegrass (Lolium perenne) was studied by electrical impedance spectroscopy. For the measurement of the impedance spectrum (80 Hz to 1 MHz) a 10 mm length sample was cut from the stem above the growing point, but the growing point was included. The impedance spectra were analysed by an asymmetric distributed circuit model. The impedance spectra were measured at two phases of hardiness and after freezing, i.e. (a) before hardening, (b) after hardening in controlled conditions, and (c) after controlled frost exposure at -16 ° C after hardening. Two model parameters, i.e. intra- and extracellular resistance, increased with hardening. The intracellular resistance and the skewness factor before hardening, and the ratio between those two parameters before and after hardening, strongly correlated with hardening of different varieties of English ryegrass. The extracellular resistance and the relaxation time decreased as a result of the frost exposure at -16 ° C." |
Language: | English |
References: | 17 |
Note: | Figures Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Repo, T., and S. Pulli. 1996. Application of impedance spectroscopy for selecting frost hardy varieties of English ryegrass. Ann. Bot. 78(5):p. 605-609. |
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| Web URL(s): https://academic.oup.com/aob/article/78/5/605/2587527/ Last checked: 03/01/2017 Requires: PDF Reader |
| MSU catalog number: QK 1 .A53 |
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