ISSN:
1365-3180
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
The foliar penetration of four alkyl oleates (methyl to butyl) and their influence on the penetration of phenmedipham and quizalofop-P-ethyl was studied in barley (Hordeum vulgare L.), cleavers (Galium aparine L.) and pea (Pisum sativum L.). Loss of alkyl oleates from glass and plant surfaces was inversely related to the length of the alkyl chains and was assumed to be due to volatilization. All four alkyl oleates after application alone, readily penetrated into pea and barley leaves but much less into G. aparine. Penetration of methyl oleate appeared to be faster than that of butyl oleate. Both alkyl oleates were completely metabolized in barley and pea in 27 h, but not in G. aparine. The penetration of herbicides was from 2% to 10% in the absence of alkyl oleates. The penetration of phenmedipham was increased in the presence of all four aikyl oleates: to the greatest extent into pea (55-80% after 27 h), to the lowest into G. aparine (20-45%). In all three species, the effect of butyl oleate was higher than that of methyl oleate. The penetration of quizalofop-P-ethyl was increased to 10%, 30-35% and 50% on G. aparine, pea and barley respectively. The length of the alkyl chains did not influence the effects of the alkyl oleates on the foliar penetration of quizalofop-P-ethyl.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1046/j.1365-3180.1997.d01-41.x
Permalink