| |
| DOI: | 10.2135/cropsci2004.0731 |
|---|
| Web URL(s): | https://dl.sciencesocieties.org/publications/cs/articles/45/5/2030
Last checked: 11/16/2016
Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/cs/pdfs/45/5/2030
Last checked: 11/16/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
|---|
| Publication Type:
| Refereed |
|---|
| Author(s): | Larsen, Søren Ugilt;
Bibby, Bo Martin |
|---|
| Author Affiliation: | Larsen: Forest and Landscape-Denmark, Frederiksberg C, Denmark; Bibby: Department of Natural Sciences, The Royal Veterinary and Agricultural University, Frederiksberg C, Denmark |
|---|
| Title: | Differences in thermal time requirement for germination of three turfgrass species |
|---|
| Section: | Turfgrass science
Other records with the "Turfgrass science" Section
|
|---|
| Source: | Crop Science. Vol. 45, No. 5, September/October 2005, p. 2030-2037. |
|---|
| Publishing Information: | Madison, WI: Crop Science Society of America |
|---|
| # of Pages: | 8 |
|---|
| Related Web URL: | https://dl.sciencesocieties.org/publications/cs/abstracts/45/5/2030
Last checked: 11/16/2016
Notes: Abstract only |
|---|
| Keywords: | TIC Keywords: Thermal properties; Germination; Temperatures; Festuca rubra subsp. trichophylla; Lolium perenne; Poa pratensis; Comparisons; Seed germination
|
|---|
| Abstract/Contents: | "Temperature is among the most influential environmental factors for germination and establishment of grass species. We compared germination response to suboptimal temperature for the turfgrass species slender creeping red fescue (Festuca rubra L. var littoralis Vasey), perennial ryegrass (Lolium perenne L.), and Kentucky bluegrass (Poa pratensis L.). Two cultivars of each species were germinated at five constant temperatures (8, 12, 16, 20, and 24°C), and germination was recorded one to three times per day. Final germination percentage was little affected by temperature, indicating that the base temperature for germination (Tb) is relatively constant within seed populations. Consequently, germination response to temperature was analyzed by a nonlinear regression method, which combined the thermal time model and the four parameter Weibull function. The analysis provided biologically significant parameters for comparing the cultivars and species. Tb only varied slightly between species, from 2.6°C for red fescue and Kentucky bluegrass to 3.6°C for perennial ryegrass. Thermal time to 50% of final germination was 63.9 degree-days for perennial ryegrass, 43.8 for red fescue, and 115.6 for Kentucky bluegrass, and thermal time from 25 to 75% of final germination was 14.9, 11.1, and 35.0 degree-days. Thus, Kentucky bluegrass requires a longer thermal time to germinate and has a larger variation in thermal time requirment within a seed lot. Consequently, low soil temperature results in a relatively slower germination of Kentucky bluegrass, possibly resulting in a poorer competitive ability of this species. This suggests that the poor establishment of Kentucky bluegrass may partly be due to a larger thermal time required for germination." |
|---|
| Language: | English |
|---|
| References: | 41 |
|---|
| Note: | Tables
Graphs |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Larsen, S. U., and B. M. Bibby. 2005. Differences in thermal time requirement for germination of three turfgrass species. Crop Sci. 45(5):p. 2030-2037. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=106084 |
| If there are problems with this record, send us feedback about record 106084. |
| Choices for finding the above item: |
|---|
| DOI: 10.2135/cropsci2004.0731 |
| Web URL(s):
https://dl.sciencesocieties.org/publications/cs/articles/45/5/2030
Last checked: 11/16/2016
Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/cs/pdfs/45/5/2030
Last checked: 11/16/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: SB 183 .C7 |
| 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) |
