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Titolo:
A nonlinear dynamic simulation model for xenobiotic transport and whole plant allocation following foliar application - II. Model validation
Autore:
Satchivi, NM; Stoller, EW; Wax, LM; Briskin, DP;
Indirizzi:
Univ Illinois, Dept Nat Resources & Environm Sci, Urbana, IL 61801 USA Univ Illinois Urbana IL USA 61801 es & Environm Sci, Urbana, IL 61801 USA Univ Illinois, Dept Crop Sci, Urbana, IL 61801 USA Univ Illinois Urbana IL USA 61801 is, Dept Crop Sci, Urbana, IL 61801 USA ARS, USDA, Urbana, IL 61801 USA ARS Urbana IL USA 61801ARS, USDA, Urbana, IL 61801 USA
Titolo Testata:
PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
fascicolo: 2, volume: 68, anno: 2000,
pagine: 85 - 95
SICI:
0048-3575(200010)68:2<85:ANDSMF>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOYBEAN GLYCINE-MAX; PHLOEM MOBILITY; PHYSIOLOGICAL-MECHANISMS; TRANSLOCATION; ABSORPTION; METABOLISM; CUTICLES; PERMEABILITY; ACCUMULATION; IMAZETHAPYR;
Keywords:
computer simulation model; whole plant allocation; foliar-applied xenobiotics; xenobiotic metabolism; herbicide;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Satchivi, NM Univ Illinois, Dept Nat Resources & Environm Sci, Urbana, IL 61801 USA Univ Illinois Urbana IL USA 61801 Sci, Urbana, IL 61801 USA
Citazione:
N.M. Satchivi et al., "A nonlinear dynamic simulation model for xenobiotic transport and whole plant allocation following foliar application - II. Model validation", PEST BIOCH, 68(2), 2000, pp. 85-95

Abstract

A validation study was performed for a nonlinear computer simulation modeldescribing xenobiotic absorption, whole plant allocation, and metabolism. Validation involved comparisons of predicted xenobiotic behavior with actual data (from independent studies in the literature) for the herbicides bentazon, chlorimuronethyl, prosulfuron, rimsulfuron, thifensulfuron, clopyralid, picloram, fluroxypyr, imazaquin, imazethapyr, acifluorfen, 2,4-D, 2,4-DB, dicamba, haloxyfop-methyl, sethoxydim, and pyridate. Simulations were performed with parameters describing the plant, the herbicide physicochemical properties, and the environmental conditions used in the experimental studies. The conformity between simulated and actual absorption, whole plant distribution, and metabolism data were evaluated by the ratio of simulated values to actual values in 25 species treated with 18 herbicides from several chemical families such as benzothiadiazole, pyridinecarboxylic acid, imidazolinone, diphenyl ether, phenoxyalkanoic acid, benzoic acid, aryloxyphenoxypropionate, cyclohexanedione, and phenylpyridazine. In general, most predicted values for herbicide absorption, whole plant allocation, and metabolismwere close to actual values for this group of herbicides. Comparisons between model prediction and actual herbicide absorption showed that in 79% of comparisons the ratios of predicted/observed were between 0.8 and 1.2. For whole plant allocation, 61% of the comparisons showed a ratio of 1 +/- 0.3. These results demonstrate the utility of this new computer simulation model in predicting xenobiotic behavior in plants and the potential use of suchmodels in rational design of herbicide molecules for optimal plant uptake and whole plant allocation. (C) 2000 Academic Press.

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Documento generato il 22/09/20 alle ore 22:23:15