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| Web URL(s): | https://dl.sciencesocieties.org/publications/cs/articles/40/4/1095
Last checked: 05/04/2017
https://dl.sciencesocieties.org/publications/cs/pdfs/40/4/1095
Last checked: 05/04/2017
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Bahmani, I.;
Hazard, L.;
Varlet-Grancher, C.;
Betin, M.;
Lemaire, G.;
Matthew, C.;
Thom, E. R. |
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| Author Affiliation: | Bahmani: Institut Naitonal de Recherche Agronomique, Unité d' Ecophysiologie des Plantes Fourragéres Lusignan, France, and Dairying Research Corp., Hamilton, New Zealand; and Hazard: Institut National de Recherche Agronomique, Unité de Génétique et d' Amélioration des Plantes Fourragéres, Lusignan, France; and Varlet-Grancher: Institut National de Recherche Agronomique, Unité d'Ecophysiologie des Plantes Fourragéres, Lusignan, France; and Betin: Institut National de Recherche Agronomique, Unité de Génétique et d'Amélioration des Plantes Fourragéres, Lusignan, France; and Lemaire: Institut National de Recherche Agronomique, Unité d'Ecophysiologie des Plantes Fourragéres, Lusignan, France; and Matthew: Institute of Natural Resources, Massey Univ., Palmerston North, New Zealand; and Thom: Dairying Research Corp., Hamilton New Zealand; |
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| Title: | Differences in tillering of long- and short-leaved perennial ryegrass genetic lines under full light and shade treatments |
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| Section: | Crop ecology, production, and management
Other records with the "Crop ecology, production, and management" Section
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| Source: | Crop Science. Vol. 40, No. 4, July/August 2000, p. 1095-1102. |
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| Publishing Information: | Madison, WI: Crop Science Society of America |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Tillers (vegetative); Lolium perenne; Genetics; Shade; Breeding; Growth; Leaf blade length; Vertical shoot growth; Site factors; Environmental factors
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| Cultivar Names: | Ellett; Grasslands Ruanui |
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| Abstract/Contents: | "There is uncertainty among plant breeders as to which characteristics to select for to optimize grass growth dynamics. The objective was to study the relationship between leaf length and tillering in perennial ryegrass (Lolium perenne L.). Two long-leaved and two short-leaved genetic lines were grown in simulated shade and near-full sunlight (control) environments. The genetic lines were New Zealand cultivars Ellett (long-leaved) and Grasslands Ruanui (short-leaved), both early flowering. The other two were late-flowering divergent selections 'LL' (long leaved) and 'SL' (short-leaved). Differences between genetic lines in leaf length were attributable mainly to higher leaf elongation rate (LER) in the two long-leaved genetic lines, and leaf elongation duration (LED) did not differ significantly between genetic lines. Grasslands Ruanui had a higher tiller number per plant than Ellett in both light environments, explained by higher site filling but similar leaf appearance rate (A^D[L). In contrast, LL had a higher tiller number per plant than SL, arising from a higher A^D[L in LL. This difference decreased during the experiment under the control treatment because SL tended to have a higher site filling ratio than LL. However, in the shade treatment, differences in tiller number between LL and SL were more mediated by A^D[L than site filling. Therefore, selection for high LER and long lamina length, even though associated with reduced site filling in all treatments, did not necesssarily result in reduced tiller number per plant. |
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| Language: | English |
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| References: | 29 |
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| Note: | Graphs
Chart |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bahmani, I., L. Hazard, C. Varlet-Grancher, M. Betin, G. Lemaire, C. Matthew, et al. 2000. Differences in tillering of long- and short-leaved perennial ryegrass genetic lines under full light and shade treatments. Crop Sci. 40(4):p. 1095-1102. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/cs/articles/40/4/1095
Last checked: 05/04/2017
https://dl.sciencesocieties.org/publications/cs/pdfs/40/4/1095
Last checked: 05/04/2017
Requires: PDF Reader |
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MSU catalog number: SB 183 .C7 |
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Digitally in TIC by file name: crops2000julaug |
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