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Increased metabolism of a pyrrolidine urea herbicide in corn by a herbicide antidote
Author(s) -
HOLM ROBERT E.,
SZABO STEVE S.
Publication year - 1974
Publication title -
weed research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 74
eISSN - 1365-3180
pISSN - 0043-1737
DOI - 10.1111/j.1365-3180.1974.tb01505.x
Subject(s) - sorghum , antidote , chemistry , sowing , urea , shoot , agronomy , phytopharmacology , phytotoxicity , pyrrolidine , sorghum bicolor , pesticide , biology , biochemistry , toxicity , organic chemistry , medicinal chemistry
Summary: Corn, cotton, and sorghum plants were injured by high rates of 5328 ( cis ‐2,5‐dimeihyl‐1‐pyrrolidinecarboxanilide) when it was applied to the soil surface al planting time. The injury was severe al 35·84 kg/ha (eight times recommended dosage) and in corn resulted in complete inhibition of adventitious root development and reduced shoot and primary and secondary root growth. Treatment of the seeds with 0·5% Protect (1,8‐naphthalic anhydride) prior to planting dramatically decreased the injurious effect of 5328 on corn, sorghum, and cotton. Using 14 C‐5328 in corn, it was shown that Protect did not alter herbicide uptake. However, the rate of conversion of the herbicide molecule in corn tissue lo water soluble, nonherbicidal metabolites was markedly enhanced in plants grown from Protect‐treated seeds.