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| Web URL(s): | https://academic.oup.com/aob/article/44/6/693/156265
Last checked: 02/15/2017
Notes: Guide page |
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| Publication Type:
| Refereed |
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| Author(s): | Sheehy, J. E.;
Woodward, F. I.;
Jones, M. B.;
Windram, A. |
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| Author Affiliation: | Sheehy and Windram: The Grassland Research Institute, Hurley, Maidenhead, Berks.; Woodward: Department of Botany, Downing Street, Cambridge; Jones: Department of Botany, Trinity College, Dublin |
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| Title: | Microclimate, photosynthesis and growth of lucerne (Medicago sativa L.) I. Microclimate and photosynthesis |
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| Source: | Annals of Botany. Vol. 44, No. 6, December 1979, p. 693-707. |
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| # of Pages: | 15 |
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| Keywords: | TIC Keywords: Medicago sativa; Photosynthesis; Microclimate; Lolium perenne; Water; Water uptake; Efficiency
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| Geographic Terms: | UK |
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| Abstract/Contents: | "Measurements of microclimate and photosynthesis of lucerne var. Europe were made in the field during the spring of 1976. The maximum rate of canopy gross photosynthesis (14.3 g CO2 m-2 h-1, I = ?) was 2.5 times greater than that of S 24 perennial ryegrass at the same LAI. This difference was due to differences in individual leaf photosynthesis. The photosynthetic rate of the youngest fully expanded leaf of lucerne remained constant throughout the experimental period at 3.6 g CO2 m-2 h-1 (300 W m-2). Measurements of soil water potential profiles indicated that lucerne extracted water from the soil to a depth of at least 800 mm, with a region of maximum uptake between 400 and 600 mm. This capability, with a moderate mean leaf resistance of 460 s m-1, conferred a high assimilation efficiency on lucerne, with a mean water use efficiency of 34 g H2O lost per gram of carbohydrate assimilated, compared with 200 g H2O per gram of carbohydrate for S 24." |
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| Language: | English |
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| References: | 51 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Sheehy, J. E., F. I. Woodward, M. B. Jones, and A. Windram. 1979. Microclimate, photosynthesis and growth of lucerne (Medicago sativa L.) I. Microclimate and photosynthesis. Ann. Bot. 44(6):p. 693-707. |
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| Web URL(s):
https://academic.oup.com/aob/article/44/6/693/156265
Last checked: 02/15/2017
Notes: Guide page |
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MSU catalog number: QK 1 .A53 |
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