Full TGIF Record # 68450
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Web URL(s):https://listings.lib.msu.edu/iowat/1988.pdf#page=68
    Last checked: 01/12/2017
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i
Report
Author(s):Reicher, Z. J.; Christians, N. E.
Author Affiliation:Reicher: Turfgrass Graduate Student and Research Associate, Christians: Professor, Iowa State University
Title:Solvent effects on plant response to preemergence herbicides on tissue culture media
Source:1988 Iowa Turfgrass Research Report. 1988, p. 63-64.
Publishing Information:Ames, Iowa: Iowa State University Extension
# of Pages:2
Series:FG-454
Keywords:TIC Keywords: DCPA; Bensulide; Pendimethalin; Prodiamine; Poa pratensis; Ethanol; Preemergence herbicides
Abstract/Contents:The objective of this experiment was to observe the effects of preemergence herbicides on rooting of Kentucky bluegrass on tissue culture media under sterile conditions (in vitro). Preemergence herbicides have very low water solubility that limits their study in a water-based tissue culture media. To increase their water solubility and facilitate their use in a water based media, the herbicides can first be dissolved in a non-toxic solvent before addition to the media. Two solvents often used are ethanol and dimethyl sulfoxide. before selecting the solvent for use with the herbicide study on bluegrass, the solvents were screened for possible adverse effects on plant growth. Because of their rapid germination and growth, oats were used to screen the solvents. The preemergence herbicides Betasan, Dacthal, Pendimethalin, and Prodiamine were used in the experiment. The relatively high water solubility of bensulide enabled the use of water, ethanol, and DMSO as solvents while ethanol and DMSO were the only solvents used with the other herbicides. The rooting responses with the solvents was not consistent among the herbicides. The rooting responses with the solvents was not consistent among the herbicides. There was a large difference in rooting response among the solvents. Ethanol as a solvent also inhibited rooting slightly compared to water. Fir this reason, ethanol was used as the solvent for the bluegrass study. The procedure used in the bluegrass study closely resembled that used in the oat study. Root measurements were taken after 12 days. The concentrations of bensulide, DCPA, pendimethalin, and prodiamine were used in ratios determined by their recommended field rates. All herbicides treatments inhibited rooting compared to the control. Root growth was inhibited more with increasing rates of bensulide; pendimethalin; and prodiamine. DCPA root length actually increased with increasing concentration, but all concentrations still produced shorter roots than the control. DCPA is the safest of the preemergence herbicide used under these conditions. Even though the herbicides were used in concentrations based on their respective field recommendations, the results do not directly relate to field conditions. This study does demonstrate though that these preemergence herbicides do have the capacity to inhibit rooting of Kentucky bluegrass. This method may be difficult to relate to field conditions but it still useful for comparison of various herbicides.
Language:English
References:0
Note:"July, 1988"
Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Reicher, Z. J., and N. E. Christians. 1988. Solvent effects on plant response to preemergence herbicides on tissue culture media. Iowa Turfgrass Res. Rep. p. 63-64.
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https://listings.lib.msu.edu/iowat/1988.pdf#page=68
    Last checked: 01/12/2017
    Requires: PDF Reader
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MSU catalog number: SB 433 .A1 I55
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