Studies on the absorption of C¹⁴ carboxyl labeled 2, 4-dichlorophenoxyacetic
acid by a susceptible plant (bean) and and resistant
plants (corn and bluegrass) indicated that the chemical was readily
absorbed by all species of plants from a foliar application. Approximately
22% and 42% of the applied chemical was absorbed by...
Research on chemicals used as pesticides has been intensified
because of current interest in the possible long range effects on the
biota. It is vitally important to understand the action of these
chemicals on the metabolism of animals and plants which have
direct or indirect contact with pesticides.
It has...
The behavior of six herbicides in soil was studied under controlled laboratory conditions. Sorption of bromacil, chiorotoluron and diuron was assessed by the batch equilibration procedure over a broad range of aqueous phase sorbate concentration. Linear equilibrium sorption constants (K[subscript p]) were slightly higher at 4° C than at 25°...
Chlorpyrifos-methyl, an organophosphate insecticide, and propoxur, a carbamate insecticide both widely used in Thailand, were studied in the laboratory for degradation and behavior in two Thai and two Oregon soils. The purpose of the study was to ascertain the comparative persistence and to measure behavior such as adsorption, evaporation and...
Penetration has long been recognized as an important factor
in the action of chemicals on plants. The effectiveness of herbicides
on such plants as blackberries is often thought to be limited by the
failure to obtain adequate penetration through the cuticular barrier.
A number of factors, among them relative humidity,...
Ten wheat crosses (four winter x spring and six winter x winter)
involving F₃ and F₄ generations and their respective winter parents
were used to determine whether the early generation selection would
be effective for kernel hardness and grain protein content. In
1980, twenty individual F₂ plants were selected with...
Published February 1947. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published June 1945. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published March 1948. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published February 1954. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog