Studies were conducted to determine the extent and nature of
sub-lethal effects of herbicides on plant growth. At least one
herbicide from each major chemical class of herbicides was evaluated
under greenhouse conditions. Oat plants were grown in sand
culture to eliminate soil interferences. Herbicides were applied
pre-emergence in nutrient...
This report presents tables of suspended-sediment data collected from 1956 to 1967 at 10 sites in the Umpqua River basin. Computations based on these data indicate that average annual suspended-sediment yields at these sites range from 137 to 822 tons per square mile.
Because available data for the Umpqua River...
The investigations were based on a complete diallel cross
among three inbred lines of Hereford cattle. Records of Angus calves
born during the same period were used to obtain more accurate
estimates of environmental effects and to determine breed differences
among the various traits included in the study. Estimates of...
This study was conducted to compare the effectiveness of four
methods of incorporating the herbicide trifluralin into the soil, and
to determine the interaction between depth of incorporation of trifluralin
and depth of weed seed germination.
Field experiments on green and dry peas were established in
Oregon and Idaho. Trifluralin,...
A facile route to bicyclo(2.1.1)hexanes was developed involving
the intramolecular photocyclization of 1, 5-hexadien-3-one to
bicyclo(2.1.1)hexan-2-one. A study of the chemistry of bicyclo-(2.1.1)hexan-2-one was undertaken. Deuterium exchange and borohydride
reduction demonstrated the strain present in the ketone.
Further evidence was obtained from the failure to introduce substituents
alpha to the...
Published January 1968. 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
The objective of this study was to investigate the influence of
dietary magnesium, potassium and nitrogen on hypomagnesemia.
Rats and dairy cattle were used as experimental animals. In the
rat experiments, 270 albino rats, Mus norvegicus albinus, were
used on 27 synthetic diets consisting of three levels each of casein...
The purpose of this thesis is to examine the methods and criteria
developed for rating actual and potential agricultural land in the
United States. It is motivated by the apparent increasing competition
for quality space created by the expanding population, and by the belief
that land rating and classification are...
An experimental study was made of acoustic switching of
pneumatic turbulence amplifiers. The development of fluidic devices
was generally reviewed, and the operation of the pneumatic turbulence
amplifiers made for testing was described. The characteristics
of the turbulence amplifiers were experimentally determined
and found to be typical for this type...
Published April 1965. 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