| |
| Publication Type:
| Refereed |
|---|
| Author(s): | Schmidt, R. E.;
Zhang, X. |
|---|
| Author Affiliation: | Department of Crop and Soil Environmental Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA |
|---|
| Title: | Alleviation of photochemical activity decline of turfgrasses exposed to soil moisture stress or UV radiation |
|---|
| Section: | Physiology
Other records with the "Physiology" Section
|
|---|
| Meeting Info.: | Toronto, Ontario, Canada: July 2001 |
|---|
| Source: | International Turfgrass Society Research Journal. Vol. 9, No. Part 1, 2001, p. 340-346. |
|---|
| Publishing Information: | Oakville, Ontario, Canada: International Turfgrass Society |
|---|
| # of Pages: | 7 |
|---|
| Keywords: | TIC Keywords: Humic acid; Propiconazole; Seaweed products; Photochemical efficiency; Soil water relations; Soil moisture; Water stress; Heat stress; Ultraviolet radiation; Poa pratensis; Agrostis stolonifera; Growth regulators; Colorants
|
|---|
| Cultivar Names: | Georgetown; Penncross |
|---|
| Abstract/Contents: | "Studies were conducted to investigate the alleviation of soil moisture stress on 'Georgetown' Kentucky bluegrass (KBG) (Poa pratensis L.) and ultraviolet (UV) radiation following high temperature stress on 'Penncross' creeping bentgrass (Agrostis palustris Huds.) treated with selected plant growth regulators (PGR's) and a turf colorant under glasshouse condition. The selected PGR's propiconazole (PPC) [1-(-2(2,4-dichloropheny)-4-propyl-1,3-dioxolan-2yl) methyl-1-H-1, 2, 4-triazole], salicylic acid (SA), seaweed extract (SWE) plus humic acid (HA), and the colorant Greenlawnger® (GL) were applied to turfgrasses alone or in combination. Field treated KBG turf plugs or creeping bentgrass plugs treated after removal from the field were used in these experiments. The treated KBG plugs were subjected to low soil moisture (-0.5 MPa), whereas, the creeping bentgrass plugs were subjected to UV radiation (70 μmol m-2 s-1). Foliar application of SA or GL enhanced photochemical activity (PA) (69.2%-83.6%) and chlorophyll content (22.1%-36.1%) of KBG under low soil moisture. UV radiation reduced PA by 22.7% and chlorophyll content by 17.0%. Foliar application of the SA, PPC + SA, PPC + GL, or SA + GL improved PA (20.1%-60.2%) and chlorophyll content (38.0%-52.3%) of creeping bentgrass when exposed to high temperature and subsequent UV radiation for five days. In a separate experiment, UV radiation reduced PA by 19.2% and chlorophyll content by 18.5%. Application of PPC + SA or HA + SWE + PPC + SA also enhanced PA (10.6%-17.1%) and chlorophyll content (9.9%-10.0%) of creeping bentgrass subjected to UV radiation for 12 days under ambient temperature." |
|---|
| Language: | English |
|---|
| References: | 13 |
|---|
| See Also: | Other items relating to: Biostimulants |
|---|
| Note: | Graphs
Tables |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Schmidt, R. E., and X. Zhang. 2001. Alleviation of photochemical activity decline of turfgrasses exposed to soil moisture stress or UV radiation. Int. Turfgrass Soc. Res. J. 9(Part 1):p. 340-346. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=74411 |
| If there are problems with this record, send us feedback about record 74411. |
| Choices for finding the above item: |
|---|
| 
MSU catalog number: SB 433 .I52 v. 9 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
