| |
| DOI: | 10.1093/aob/mcm174 |
|---|
| Web URL(s): | https://academic.oup.com/aob/article/100/4/813/147616/
Last checked: 03/01/2017
Requires: PDF Reader |
|---|
| Publication Type:
| Refereed |
|---|
| Author(s): | Berone, Germán D.;
Lattanzi, Fernando A.;
Colabelli, Marta R.;
Agnusdei, Mónica G. |
|---|
| Author Affiliation: | Berone: Instituto de National de Technología Agropecuaria Estación Experimental Agropecuaria Rafaela, Rafaela Argentina, Argentina; Lattanzi: Lehrstuhl für Grünlandlehre, Technische Universität München, Freising-Weihenstephan, Germany; Colabell: Facultad, Ciencias Agrarias, Universidad Nacional de Mar del Plata; Agnusdei: Instituto Nacional de Technología Agropecuaria, Estación Experimental Agropecuaria Balcarce, Balcarce Argentina, Argentina |
|---|
| Title: | A comparative analysis of the temperature response of leaf elongation in Bromus stamineus and Lolium perenne plants in the field: Intrinsic and size-mediated effects |
|---|
| Source: | Annals of Botany. Vol. 100, No. 4, October 2007, p. 813-820. |
|---|
| Publishing Information: | London, Oxford University Press |
|---|
| # of Pages: | 8 |
|---|
| Keywords: | TIC Keywords: Vertical shoot growth; Temperature response; Lolium perenne; Bromus stamineus
|
|---|
| Abstract/Contents: | "Background and Aims: Growth of grass species in temperate-humid regions is restricted by low temperatures. This study analyses the origin (intrinsic or size-mediated) and mechanisms (activity of individual meristems vs. number of active meristems) of differences between Bromus stamineus and Lolium perenne in the response of leaf elongation to moderately low temperatures. Methods Field experiments were conducted at Balcarce, Argentina over 2 years (2003 and 2004) using four cultivars, two of B. stamineus and two of L. perenne. Leaf elongation rate (LER) per tiller and of each growing leaf, number of growing leaves and total leaf length per tiller were measured on 15-20 tillers per cultivar, for 12 (2003) or 10 weeks (2004) during autumn and winter. Key Results: LER was faster in B. stamineus than in L. perenne. In part, this was related to size-mediated effects, as total leaf length per tiller correlated with LER and B. stamineus tillers were 71% larger than L. perenne tillers. However, accounting for size effects revealed intrinsic differences between species in their temperature response. These were based on the number of leaf meristems simultaneously active and not on the (maximum) rate at which individual leaves elongated. Species differences were greater at higher temperatures, being barely notable below 5° C (air temperature). Conclusions: Bromus stamineus can sustain a higher LER per tiller than L. perenne at air temperatures > 6° C. In the field, this effect would be compounded with time as higher elongation rates lead to greater tiller sizes." |
|---|
| Language: | English |
|---|
| References: | 32 |
|---|
| Note: | Tables
Graphs |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Berone, G. D., F. A. Lattanzi, M. R. Colabelli, and M. G. Agnusdei. 2007. A comparative analysis of the temperature response of leaf elongation in Bromus stamineus and Lolium perenne plants in the field: Intrinsic and size-mediated effects. Ann. Bot. 100(4):p. 813-820. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=130388 |
| If there are problems with this record, send us feedback about record 130388. |
| Choices for finding the above item: |
|---|
| DOI: 10.1093/aob/mcm174 |
| Web URL(s):
https://academic.oup.com/aob/article/100/4/813/147616/
Last checked: 03/01/2017
Requires: PDF Reader |
| 
MSU catalog number: b2209341a |
| Find from within TIC:
Digitally in TIC by record number. |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
