Temperature Effect on Barban Phytotoxicity

Miller, Stephen D.; Nalewaja, John D.; Dobrzanski, A.; Pudelko, J.

doi:10.1017/s0043174500049493

Cited by 14 publications

(11 citation statements)

References 4 publications

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“…Difenzoquat phytotoxicity to wild oat was not influenced by pretreatment temperature; i.e., toxicity was similar with a 30-C posttreatment temperature regardless of whether the pretreatment temperature was 10 or 30 C ( Figures 1C, ID). The phytotoxicity of barban to wild oat also is not influenced by pretreatment temperature (5).…”

Section: Resultsmentioning

confidence: 93%

Temperature Effect on Difenzoquat Phytotoxicity

Miller

Nalewaja

Dobranski³

1984

Weed sci.

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The phytotoxicity of difenzoquat (1,2-dimethyl-3,5-diphenyl-1H-pyrazolium) applied to the three-leaf stages of hard red spring wheat (Triticum aestivumL. ‘Waldron’ and ‘Era’), barley (Hordeum vulgareL. ‘Beacon’) and wild oat (Avena fatuaL. ♯ AVEFA) grown under constant, fluctuating, or alternating day-night temperatures was determined in controlled environment chambers. Difenzoquat injury to wild oat and Era wheat was greater at a constant 20 or 30 than at 10 C; however, injury to Waldron wheat was similar at 10, 20, and 30 C. Difenzoquat caused only slight injury to barley, and injury was similar at all temperatures. In Era wheat, selectivity of difenzoquat for wild oat was maximum with a 10-C night temperature in an otherwise 30-C-temperature environment; in Beacon barley selectivity was maximum with 3 or more days of 20- or 30-C posttreatment temperature; and in Waldron wheat selectivity was not adequate at any of the temperatures studied.

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Section: Resultsmentioning

confidence: 93%

Temperature Effect on Difenzoquat Phytotoxicity

Miller

Nalewaja

Dobranski³

1984

Weed sci.

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“…(blackgrass) control at day/night temperatures of 26/16 C, whereas greater A. fatua control was observed at 16/10 C (Malefyt and Quakenbush 1991). Avena fatua was also more susceptible to barban at 10 than 29 C, whereas T. aestivum injury was greater at the lower temperature (Miller et al 1978). Chlorsulfuron toxicity to Setaria viridis L. (green foxtail) was affected by temperature when the relative humidity was at 100 to 95%, with greater control occurring at 10 and 20 C than at 30 C (Nalewaja and Woznica 1985).…”

Section: Management Of Bromus Tectorum Aegilops Cylindrica Andmentioning

confidence: 99%

Efficacy and metabolism of MON 37500 inTriticum aestivumand weedy grass species as affected by temperature and soil moisture

et al. 2000

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Spray application of 24 and 46 g ha−1 MON 37500 was used in efficacy studies, and vacuum infiltration or droplet application of radiolabeled MON 37500 was used in metabolism studies to evaluate temperature and soil moisture on MON 37500 efficacy and metabolism. Day/night temperatures before vs. after application of MON 37500 of 25/23 vs. 25/23, 25/23 vs. 5/3, 5/3 vs. 25/23, and 5/3 vs. 5/3 C were evaluated for the efficacy study, whereas day/night temperatures of 5/3 and 25/23 C were used for the metabolism study. Soil moisture of one-third and full pot capacities was evaluated for both studies. No Triticum aestivum injury was observed at the different temperatures or soil moistures because of rapid metabolism of MON 37500 by T. aestivum. Weed control was greater when the temperature after application was 25/23 C or soil moisture was at full pot capacity than when the temperature was at 5/3 C after application or soil moisture was at one-third pot capacity. Susceptibility to MON 37500 was greatest for Bromus tectorum, moderate for Avena fatua, and least for Aegilops cylindrica. This pattern of susceptibility for the weed species was related to their ability to metabolize MON 37500. Aegilops cylindrica metabolized more MON 37500 in the first 24 h than did A. fatua, whereas B. tectorum metabolized the least MON 37500. Cool air temperatures decreased MON 37500 metabolism in all species, whereas soil moisture had no effect.

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“…Desmedipham {ethyl [3-[[(phen-ylamino)carbonyl] oxy] phenyl] carbamate} toxicity to sugarbeet [Beta vulgaris L.) was reduced by low temperature after treatment and low moisture stress before treatment (5). However, barban (4-chloro -2-butynyl 3-chlorophenylcarbamate) toxicity to wheat (Triticum aestivum L.) was increased by low temperature after treatment (12). Crop cultivar also has influenced susceptibility to herbicides (9).…”

Section: Introductionmentioning

confidence: 99%

Effect of Environment and Adjuvants on Asulam Phytotoxicity

Nalewaja

Woźnica

1988

Weed sci.

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Experiments were conducted to determine the influence of various factors on asulam {methyl[(4-aminophenyl)sulfonyl] carbamate} toxicity to flax (Linum usitatissimumL.) and wild oats (Avena fatuaL. # AVEFA). Asulam toxicity to both flax and wild oats generally increased as temperature, humidity, and soil moisture increased after treatment. Octoxynol {α-[p-1,1,3,3-tetramethyl butyl phenyl]-ω-hydroxypoly(oxyethylene)} in the spray solution increased asulam toxicity to both species in all environments. Octoxynol and trimethylenonypolyethoxyethanol (WK) enhanced asulam toxicity more than other adjuvants evaluated. Asulam toxicity to both flax and wild oats increased as octoxynol concentration in the spray increased. Flax tolerance to asulam generally increased with flax height at treatment. ‘Flor’ flax was the most asulam susceptible of six cultivars evaluated. A 2-mm simulated rainfall within 3 or 6 h after asulam treatment reduced toxicity to wild oats and flax, respectively.

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Temperature Effect on Barban Phytotoxicity

Cited by 14 publications

References 4 publications

Temperature Effect on Difenzoquat Phytotoxicity

Temperature Effect on Difenzoquat Phytotoxicity

Efficacy and metabolism of MON 37500 inTriticum aestivumand weedy grass species as affected by temperature and soil moisture

Effect of Environment and Adjuvants on Asulam Phytotoxicity

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