| |
| Web URL(s): | https://scisoc.confex.com/crops/2017am/webprogram/Paper106410.html
Last checked: 10/12/2017 |
|---|
| Publication Type:
| Report |
|---|
| Content Type: | Abstract or Summary only |
|---|
| Author(s): | Chapman, Cathryn;
Burgess, Patrick;
Huang, Bingru |
|---|
| Author Affiliation: | Chapman: Plant Biology, Rutgers University, Pequannock, NJ; Burgess and Huang: Plant Biology, Rutgers University, New Brunswick, NJ |
|---|
| Title: | Effects of elevated atmospheric carbon dioxide on drought tolerance and post-drought recovery of Kentucky bluegrass |
|---|
| Section: | C05 Turfgrass Science
Other records with the "C05 Turfgrass Science" Section
Turf physiology, breeding and genetics
Other records with the "Turf physiology, breeding and genetics" Section
|
|---|
| Meeting Info.: | Tampa, Florida: October 22-25, 2017 |
|---|
| Source: | ASA, CSSA and SSSA International Annual Meetings. 2017, p. 106410. |
|---|
| Publishing Information: | [Milwaukee, Wisconsin]: [American Society of Agronomy and the Entomological Society of America] |
|---|
| # of Pages: | 1 |
|---|
| Keywords: | TIC Keywords: Drought recovery; Drought resistance; Elevated atmospheric carbon dioxide; Meristem; Poa pratensis; Rhizomes
|
|---|
| Abstract/Contents: | "Drought stress due to lack of rainfall or irrigation is detrimental to plant growth, including to the critically important meristematic tissues, such as rhizomes, which produce daughter plants or shoots and roots in turfgrass. However, drought stress can induce dormancy of these growing points and in prolonged periods of drought can even cause mortality that can result in permanent loss of turf stands. Thus, the ability to maintain active growth during prolonged stress periods or to quickly recover once the stress has subsided is highly dependent upon the viability or level of damage to the meristematic tissues in these growing organs. Elevated atmospheric CO2 concentration has been found to enhance drought tolerance, but CO2 effects on the growth and survival of rhizomes in Kentucky bluegrass are unknown. The study was designed to determine whether elevated CO2 concentration would alleviate drought damages in rhizomes and enhance drought tolerance and post-drought recovery through regrowth of meristematic and leaf tissues. Plants of rhizomatous Kentucky bluegrass (Poa pratensis cv. Baron) that were grown at elevated CO2 concentration (800 uL L-1) under drought stress maintained higher membrane stability, leaf water content, and visual turf quality (TQ), and Kentucky bluegrass rhizome nodes exhibited lesser damages, as manifested by higher tissue viability and increased levels of auxin (IAA) and cytokinin (ZR) and decreased levels of abscisic acid (ABA) compared with plants at ambient CO2 (400 uL L-1). Upon re-watering, plants that were exposed to drought stress under elevated CO2 exhibited increased growth of total shoot and daughter plant biomasses and an increased number of rhizomes, as well as higher % coverage and greenness compared to plants at ambient CO2 levels. The results suggest that the enhanced drought tolerance and subsequent regrowth at elevated CO2 could have protective effects on growing points, facilitating drought survival of Kentucky bluegrass." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| Note: | This item is an abstract only!
"267-7" |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Chapman, C., P. Burgess, and B. Huang. 2017. Effects of elevated atmospheric carbon dioxide on drought tolerance and post-drought recovery of Kentucky bluegrass. Agron. Abr. p. 106410. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=290304 |
| If there are problems with this record, send us feedback about record 290304. |
| Choices for finding the above item: |
|---|
| Web URL(s):
https://scisoc.confex.com/crops/2017am/webprogram/Paper106410.html
Last checked: 10/12/2017 |
| 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) |
