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Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1991.tb02399.x/epdf Last checked: 10/02/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Thomas, H.;
Evans, C. |
Author Affiliation: | AFRC Institute of Grassland and Environmental Research, Welsh Plant Breeding Station |
Title: | Growth and water relations of simulated swards of Lolium perenne L. selection lines with contrasting leaf osmotic potentials |
Source: | Grass and Forage Science. Vol. 46, No. 4, December 1991, p. 391-397. |
Publishing Information: | Oxford, Blackwell Scientific Publications |
Keywords: | TIC Keywords: Growth; Water relations; Lolium perenne; Selection; Leaves; Osmosis
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Abstract/Contents: | Two selection lines of Lolium perenne, which had different leaf lamina osmotic potential ( s) when droughted in controlled environments, were grown as vegetative simulated swards in containers of soil 1.0x1.3x0.9m deep in the glasshouse. Water was withheld during July, August and September. Under irrigation the low- s line had leaf lamina and leaf base s 0.06 MPa lower than the high- s line. Under drought, the two lines did not differ significantly in lamina s but leaf base s was 0.16 MPa lower in the low line than in the high line. Upon rewatering, most of the osmotic adjusment in the leaf bases was lost within 2 d, but that in the laminae was more stable. Herbage growth under irrigation was similar in the two lines until September, when it was greater in the high- s line. Drought reduced herbage growth, and also regrowth rates following rewatering, but the two lines did not differ in their sensitivity to drought. The results are discussed in relation to selecting for improved drought resistance on the basis of physiological characters. |
Language: | English |
References: | 22 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Thomas, H., and C. Evans. 1991. Growth and water relations of simulated swards of Lolium perenne L. selection lines with contrasting leaf osmotic potentials. Grass Forage Sci. 46(4):p. 391-397. |
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| Web URL(s): http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1991.tb02399.x/epdf Last checked: 10/02/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: SB 197 .B7 |
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