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| Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1974.tb01221.x/epdf
Last checked: 10/02/2015
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| Author(s): | Howse, K. R.;
Harries, J. H.;
Norrington-Davies, J. |
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| Title: | Competition for phosphate between a diploid and a tetraploid perennial ryegrass |
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| Source: | Journal of the British Grassland Society. Vol. 29, No. 1, March 1974, p. 9-16. |
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| Publishing Information: | Oxford: British Grassland Society |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Phosphates; Lolium perenne; Soils; Tracer techniques
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| Abstract/Contents: | The relative uptake of P was measured in two varieties of Lolium perenne using radioactive tracer techniques. The diploid cv. Hora and the tetraoploid cv. Terhoy were sown as pure stands and as 50:50 mixtures at both high and low density. Uptake from four depths 10, 20, 30 and 40 cm were examined. The results showed that: in pure stands the diploid uptake at 10 cm exceeded that of the tetraploid althought at deeper levels the uptake pattern was similar; in mixtures the uptake of the tetraploid variety increased markedly at 10 cm by a substantial increase in uptake at 20 cm; overall the tetraploid variety had a deeper pattern of uptake than the diploid, in general, uptake at high density was greater than that at low density; the mixture showed a greater degree of P utilization than pure stands in the upper layers of the soil; when these two varieties are grown together in 50:50 mixtures the tetraploid is relatively more efficient in taking up P. |
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| Language: | English |
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| References: | 13 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Howse, K. R., J. H. Harries, and J. Norrington-Davies. 1974. Competition for phosphate between a diploid and a tetraploid perennial ryegrass. J. Br. Grassland Soc. 29(1):p. 9-16. |
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| Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1974.tb01221.x/epdf
Last checked: 10/02/2015
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: SB 197 .B7 |
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