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| Web URL(s): | http://www.jstor.org/stable/2432966?seq=1#page_scan_tab_contents
Last checked: 12/17/2015
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Robinson, David;
Rorison, I. H. |
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| Author Affiliation: | Unit of Comparative Plant Ecology (NERC), Dept. of Botany, University of Sheffield, Sheffield, UK. |
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| Title: | Root hairs and plant growth at low nitrogen availabilities |
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| Source: | New Phytologist. Vol. 107, No. 4, December 1987, p. 681-693. |
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| Publishing Information: | Oxford, England |
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| Keywords: | TIC Keywords: Roots; Root hairs; Root growth; Nitrogen; Holcus lanatus; Deschampsia flexuosa; Poa annua; Lolium perenne; Nitrogen uptake
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| Abstract/Contents: | SUMMARY: "Four grass species, Holcus lanatus L., Deschampsia flesuosa (L.) Trin., Poa annua L. and Lolium perenne L. cv. S.23 and cv. 'Norlea' were grown for 28 d in continuous flow nutrient solution containing nitrogen (N) at one of three concentrations (0-02, 0-21 or 4-0 mol m-3) as nitrate or ammonium. Growth, N uptake and root hair production were measured. Root hair growth in D. flexuosa and P. annua was the most responsive to low N availability. These responses were generally greater to ammonium than nitrate. The possible effects of the absence of root hairs on growth were tested via empirical relationships between relative growth rates and N inflow rates to estimate the contributions made to growth by root hairs. Only in D. flexuosa at the lowest N concentration were significant contributions found. Nitrate and ammonium had no differential effect in this respect." |
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| Language: | English |
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| References: | 49 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Robinson, D., and I. H. Rorison. 1987. Root hairs and plant growth at low nitrogen availabilities. New Phytol. 107(4):p. 681-693. |
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| Web URL(s):
http://www.jstor.org/stable/2432966?seq=1#page_scan_tab_contents
Last checked: 12/17/2015
Access conditions: Item is within a limited-access website |
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MSU catalog number: QK 1 .N38 |
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