| |
| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2013 Proceedings-SWSS.pdf#page=227
Last checked: 08/12/2013
Requires: PDF Reader
Notes: Item is within a single large file |
|---|
| Publication Type:
| Report |
|---|
| Author(s): | Jones, P. A.;
Brosnan, J.;
Kopsell, D. A.;
Breeden, G. K. |
|---|
| Author Affiliation: | University of Tennessee, Knoxville, TN |
|---|
| Title: | Preemergence herbicides affect hybrid bermudagrass nutrient content |
|---|
| Section: | Graduate student oral paper contest
Other records with the "Graduate student oral paper contest" Section
|
|---|
| Meeting Info.: | Houston, Texas: January 28-30, 2013 |
|---|
| Source: | Proceedings of the Southern Weed Science Society: 66th Annual Meeting. Vol. 66, 2013, p. 140. |
|---|
| Publishing Information: | Champaign, Illinois: Southern Weed Science Society |
|---|
| # of Pages: | 1 |
|---|
| Keywords: | TIC Keywords: Cellulose; Evaluations; Herbicide evaluation; Herbicide injury; Hybrid bermudagrasses; Mitotic index; Morphology; Nutrient concentration; Nutrient uptake; Preemergence herbicides; Root growth
|
|---|
| Abstract/Contents: | "Preemergence herbicides that inhibit mitotis (MTI) or cellulose biosynthesis (CBI) have been reported to negatively impact turfgrass root development. These reductions in root growth or morphology could negatively affect nutrient uptake resulting in the development of foliar deficiency symptoms. However, data describing the effects of MTI and CBI herbicide applications on turfgrass nutrient content are limited. Research was conducted in 2012 in a greenhouse at the University of Tennessee to determine the effects of indaziflam (35 and 52.5 g ha-1), prodiamine (0.84 kg ha-1), and isoxaben (1.12 kg ha-1) applications on hybrid bermudagrass [C. dactylon (L.) Pers. x C. transvaalensis Burtt-Davey] foliar tissue nutrient content. Treatments were compared to non-treated control as well as the protoporphyrinogen oxidase inhibitor oxadiazon (3.36 kg ha-1), as it has been reported to have minimal effects on turfgrass roots. Treatments were arranged in a randomized complete block design with five replications and the experiment was repeated in time. Ten hybrid bermudagrass plugs were transplanted from washed sod into aerated polyethylene containers filled with 10 L of Hoagland's nutrient solution. Plants were allowed to acclimate for three weeks prior to herbicide treatment. Visual foliar injury was assessed weekly using a 0 (i.e., no injury) to 100% (i.e., complete plant death) scale relative to the non-treated control. Similarly, root mass and root color were assessed weekly using a 1 (i.e, lowest) to 5 (i.e., highest) scale.. Foliar and root biomass were also harvested at the conclusion of the study, dried, and weighed. Foliar biomass samples were analyzed for macro- and micronutrient content. Significant foliar injury was observed in plants treated with CBI herbicides. Injury symptoms included curling of new growth, reddening of leaf tissue and eventual necrosis. Symptoms were more severe in indaziflam treated plants (67 to 78% injury) than isoxaben (49% injury) by 6 WAT. Prodiamine, indaziflam, and isoxaben also reduced visual root mass and root color compared to the non-treated control. Consequently, these herbicides reduced P, S, and K content in foliar tissue. Treatment with indaziflam reduced Mg and Mn content in foliar tissue compared to non-treated plants. This response was not observed with prodiamine and could explain the significant foliar injury (>70%) observed with both rates of indaziflam in this research. Data in the current study illustrate that preemergence herbicide applications affect hybrid bermudagrass nutrient content." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| See Also: | Originial version appears in ASA, CSSA and SSSA Annual Meetings [2012], 2012, p. 70829, R=213145. R=213145 |
|---|
| Note: | This item is an abstract only! |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Jones, P. A., J. Brosnan, D. A. Kopsell, and G. K. Breeden. 2013. Preemergence herbicides affect hybrid bermudagrass nutrient content. South. Weed Sci. Soc. Proc. 66:p. 140. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=227373 |
| If there are problems with this record, send us feedback about record 227373. |
| Choices for finding the above item: |
|---|
| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2013 Proceedings-SWSS.pdf#page=227
Last checked: 08/12/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: b2207931 |
| Find from within TIC:
Digitally in TIC by file name: swssp2013 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
