| |
| Web URL(s): | http://turf.rutgers.edu/research/abstracts/symposium2016.pdf#page=71
Last checked: 07/26/2016
Requires: PDF Reader
Notes: Item is within a single large file |
|---|
| Publication Type:
| Report |
|---|
| Author(s): | Tate, Trent Matthew;
Meyer, William A.;
Bonos, Stacy A.;
McCullough, Patrick E.;
Mansue, Carrie |
|---|
| Author Affiliation: | Tate, Meyer, Bonos and Mansue: Plant Biology and Pathology, Rutgers University, New Brunswick, NJ; McCullough: University of Georgia - Griffin, Griffin, GA |
|---|
| Title: | Evaluation of nine Tenacity selected fine fescues: Quantifying the tolerance levels and determination of the absorption and translocation |
|---|
| Section: | Poster presentations
Other records with the "Poster presentations" Section
|
|---|
| Meeting Info.: | New Brunswick, New Jersey: March 18, 2016 |
|---|
| Source: | Proceedings of the Twenty-Fifth Annual Rutgers Turfgrass Symposium. Vol. 25, 2016, p. 71. |
|---|
| Publishing Information: | New Brunswick, New Jersey: The Center for Turfgrass Science, Rutgers, The State University of New Jersey |
|---|
| # of Pages: | 1 |
|---|
| Keywords: | TIC Keywords: Absorption; Festuca brevipila; Festuca rubra subsp. commutata; Festuca rubra subsp. rubra; Fine fescues; Foliar uptake; HPPD inhibitors; Herbicide trials; Mesotrione; Resistance; Translocation
|
|---|
| Cultivar Names: | Tracey |
|---|
| Abstract/Contents: | "The fine fescues (Festuca spp.) are a group of cool-season turfgrasses that are adapted to cool, dry, shaded environments, infertile, acidic soils and drought conditions. These grasses also exhibit better performance under lower fertility levels than other cool-season turfgrasses. These qualities give fine fescues the reputation of being low maintenance grasses. Tenacity (mesotrione) is an HPPD inhibiting herbicide that has good pre- and post-emergent control of many problematic grassy weeds including Poa annua. Currently the Tenacity label does not recommend use in fine fescues at seeding. The Rutgers turfgrass breeding program has been working to develop Tenacity tolerant fine fescues where the herbicide can be utilized safely. The current research is an evaluation of three lines of hard fescue (F. brevipila Tracey), three lines of Chewings fescue (F. rubra L. subsp. commutata Gaudin) and three lines of strong creeping red rescue (F. rubra L. subsp. rubra) from Tenacity selected breeding material. These plants were selected based on their previous response from a field application of Tenacity. Plants were established from vegetative plugs and maintained in conetainers in a growth chamber with settings of 25/15 °C day/night temperature, 50% humidity, and 10/14 daylight/darkness photoperiod. Herbicide treatments were applied to plants at rates of 0, 17.5, 35, 70, 140, 280, 560, 1121, 2242, 4482, and 8966 grams a.i. ha-1 + 0.25% non ionic surfactant. Visual percent injury ratings (0-100 percent with 0 = no injury and 100 = plant death) were taken and means separated using fishers protected LSD. Absorption and translocation were measured in these lines using C14 labeled mesotrione applied as foliar and root applications. Hard fescues were the most tolerant species with the lowest foliar absorption. Strong creeping red rescue was the least tolerant species, and had the greatest root translocation of absorbed herbicide. Root uptake was comparable among species; however, variability among lines was observed. Foliar absorption and translocation of radioactivity do not appear to be associated with the differential tolerance levels to mesotrione of the individual lines within each species; however, the differential tolerance of the three fine fescue species was associated with the differences in the foliar and root absorptions we observed. Other factors likely to contribute to mesotrione sensitivity, and further studies are needed to better understand the mechanism of increased tolerance." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| Note: | This item is an abstract only! |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Tate, T. M., W. A. Meyer, S. A. Bonos, P. E. McCullough, and C. Mansue. 2016. Evaluation of nine Tenacity selected fine fescues: Quantifying the tolerance levels and determination of the absorption and translocation. Proc. Rutgers Turfgrass Symp. 25:p. 71. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=273528 |
| If there are problems with this record, send us feedback about record 273528. |
| Choices for finding the above item: |
|---|
| Web URL(s):
http://turf.rutgers.edu/research/abstracts/symposium2016.pdf#page=71
Last checked: 07/26/2016
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: b3696858 |
| Find from within TIC:
Digitally in TIC by file name: rutsy2016 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
