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| Web URL(s): | https://academic.oup.com/aob/article/62/1/95/151674
Last checked: 02/15/2017 |
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| Publication Type:
| Refereed |
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| Author(s): | Pollock, C. J.;
Eagles, C. F.;
Sims, I. M. |
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| Author Affiliation: | Plant and Cell Biology Department, Welsh Plant Breeding Station, Plas Gogreddan, Aberstwyth, UK |
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| Title: | Effect of Photoperiod and Irradiance Changes Upon Development of Freezing Tolerance and Accumulation of Soluble Cargohydrate in Seedlings of Lolium perenne Grown at 2 C |
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| Source: | Annals of Botany. Vol. 62, No. 1, July 1988, p. 95-100. |
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| Publishing Information: | London, Oxford University Press |
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| Keywords: | TIC Keywords: Lolium perenne; Hardening; Cold resistance; Irradiance; Carbohydrates; Fructans; Polymers; Freezing point depression
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| Abstract/Contents: | "Two contrasting cultivars of Lolium perenne were exposed to a range of daily radiation integrals during hardening at 2 C for 15 d. The maximum induced freezing tolerance measured as LT(50) values were unaffected by changes in the radiation integral above 10 mol m-2 d-1, whereas accumulation of water-soluble carbohydrate showed a strong positive correlation with the radiation integral over the entire range of the experiment. The correlation between LT(50) and soluble carbohydrate content at the end of the hardening period was poor and showed no obvious connection with genotype. Fructan polymers and sucrose were the major components of the soluble carbohydrates in both cultivars. The depression of freezing point attributable to the accumulation of soluble, osmotically active carbohydrate was not sufficient to account for the observed changes in LT(50) in the hardy genotype. These results are discussed in relation to the interactions between growth, photosynthesis and assimilate partitioning during hardening." |
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| Language: | English |
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| References: | 23 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Pollock, C. J., C. F. Eagles, and I. M. Sims. 1988. Effect of Photoperiod and Irradiance Changes Upon Development of Freezing Tolerance and Accumulation of Soluble Cargohydrate in Seedlings of Lolium perenne Grown at 2 C. Ann. Bot. 62(1):p. 95-100. |
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Last checked: 02/15/2017 |
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MSU catalog number: QK 1 .A53 |
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