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Authors Papiernik, SK; Grieve, CM; Yates, SR; Lesch, SM
Author Full Name Papiernik, SK; Grieve, CM; Yates, SR; Lesch, SM
Title Phytotoxic effects of salinity, imazethapyr, and chlorimuron on selected weed species
Source WEED SCIENCE
Language English
Document Type Article
Author Keywords plant growth; efficacy; growth regulator; imidazolinone; sulfonylurea
Keywords Plus NUTSEDGE CYPERUS-ESCULENTUS; FOLIAR-APPLIED CHLORIMURON; SOYBEAN GLYCINE-MAX; AMMONIUM-SULFATE; TRANSLOCATION; ABSORPTION; POSTEMERGENCE; HERBICIDES; EFFICACY; IMAZAPYR
Abstract Greenhouse experiments were conducted to determine the effect of salinity, imazethapyr, and chlorimuron on weed growth. Five species, barnyardgrass, common cocklebur, ivyleaf morningglory, common purslane, and yellow nutsedge, were grown in potting soil and irrigated with nonsaline (EC similar to 2 dS m(-1)) or sulfate-dominated saline (EC similar to 7 dS m(-1)) nutrient solution. Plants were treated after emergence with imazethapyr (Pursuit formulation) at 70 g ae ha(-1) or chlorimuron ethyl (Classic formulation) at 8.8 g ai ha(-1). Results indicated that irrigation with saline water had no overall effect on the growth or survival of most tested weed species. Growth of yellow nutsedge (maximum height and stem diameter) was reduced for plants irrigated with saline water. Observed growth and survival trends in saline and nonsaline treatments were consistent with information on the herbicide label. Complete control of common purslane was not achieved by either chlorimuron or imazethapyr. Growth and survival of ivyleaf morningglory and yellow nutsedge were greater when plants were treated with imazethapyr than when treated with chlorimuron, whereas for barnyardgrass, growth and survival were significantly greater when plants were treated with chlorimuron. Both herbicides affected common cocklebur growth and survival in a similar way. For all tested species, most surviving plants were not vigorous and would not be highly competitive with crop plants. The results of these experiments suggest that weed control information mentioned on the labels for these herbicide formulations will not require modification for moderately saline soils.
Author Address USDA ARS, George E Brown Jr Salin Lab, Riverside, CA 92507 USA
Reprint Address Papiernik, SK (corresponding author), USDA ARS, George E Brown Jr Salin Lab, 450 W Big Springs Rd, Riverside, CA 92507 USA.
ORCID Number Papiernik, Sharon/0000-0002-0144-7125
Times Cited 7
Total Times Cited Count (WoS, BCI, and CSCD) 9
Publisher WEED SCI SOC AMER
Publisher City LAWRENCE
Publisher Address 810 EAST 10TH ST, LAWRENCE, KS 66044-8897 USA
ISSN 0043-1745
29-Character Source Abbreviation WEED SCI
ISO Source Abbreviation Weed Sci.
Publication Date JUL-AUG
Year Published 2003
Volume 51
Issue 4
Beginning Page 610
Ending Page 617
Digital Object Identifier (DOI) 10.1614/0043-1745(2003)051[0610:PEOSIA]2.0.CO;2
Page Count 8
Web of Science Category Agronomy; Plant Sciences
Subject Category Agriculture; Plant Sciences
Document Delivery Number 705HV
Unique Article Identifier WOS:000184390400019
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