| |
| Web URL(s): | https://academic.oup.com/aob/article/70/5/437/154180/
Last checked: 03/01/2017
Requires: PDF Reader |
|---|
| Publication Type:
| Refereed |
|---|
| Author(s): | Gastal, F.;
Belanger, G.;
Lemaire, G. |
|---|
| Author Affiliation: | Station d'Ecophysioligie des Plantes Fourrageres, Institut Natioanl de la Recherche Agronomique and Research Station, Agriculture Canada |
|---|
| Title: | A model of the leaf extension rate of tall fescue in response to nitrogen and temperature |
|---|
| Source: | Annals of Botany. Vol. 70, No. 5, November 1992, p. 437-442. |
|---|
| Publishing Information: | London, Oxford University Press |
|---|
| # of Pages: | 6 |
|---|
| Keywords: | TIC Keywords: Leaf extension; Festuca arundinacea; Nitrogen fertilization; Temperatures
|
|---|
| Abstract/Contents: | "The leaf extension rate (LER) of tall fescue (Festuca arundinacea Screb.) was studied in the field under various nitrogen and temperature regimes. The LER was closely related to temperature when N was not limiting plant growth. Two distinct relationships between the LER and the temperature were obtained, one for vegetative growth and one for the reproductive period. These relationships, described by a Gompertz function, were exponential at temperatures below 8 C and linear at temperatures above 8 C. They made possible the calculation of an optimal LER corresponding to non-limiting N conditions for plant growth. The strong influence of the temperature on the LER was still observed under N limiting conditions. The N status of the swards was described by the ratio between the actual N content (N actual) and the optimal N content (N optimal). The N optimal was defined as the N content experienced at a non-limiting level of N nutrition but without N luxury consumption. The N optimal, expressed as a function of dry matter yield, declined during growth. The effect of the N status of the swards on the LER was analysed by calculating the ratio between the actual LER and the optimal LER, and relating it to the ratio between N actual and N optimal. It was shown that these two ratios were highly correlated." |
|---|
| Language: | English |
|---|
| References: | 26 |
|---|
| Note: | Tables
Graphs |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gastal, F., G. Belanger, and G. Lemaire. 1992. A model of the leaf extension rate of tall fescue in response to nitrogen and temperature. Ann. Bot. 70(5):p. 437-442. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=24957 |
| If there are problems with this record, send us feedback about record 24957. |
| Choices for finding the above item: |
|---|
| Web URL(s):
https://academic.oup.com/aob/article/70/5/437/154180/
Last checked: 03/01/2017
Requires: PDF Reader |
| 
MSU catalog number: QK 1 .A53 |
| 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) |
