Published March 1974. 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
Polyclonal antisera were raised against isolates of bean
common mosaic virus (BCMV) and bean common mosaic necrosis
virus (BCMNV) using conventional serological methods.
Infected tissues containing, respectively, 22 recognized BCMV
and BCMNV isolates were tested against the two antisera by
antigen-coated plate (ACP) ELISA and double antibody sandwich
(DAS) ELISA....
Riparian areas in the arid western United States are critical ecosystems that have been severely degraded by a variety of land and water uses over the last 100 years. In this study, the composition and structure of floodplain vegetation along the Lower Owens River in eastern California was quantitatively described...
In 1906, applying Charles Darwin's evolutionary theories to the human race, Sir Francis Galton introduced the concept of eugenics, "the science of the improvement of the human race by better breeding." The rediscovery in 1900 of Mendel's laws of genetic inheritance and an upsurge in hereditarian thought set the stage...
The principal salinity extrema and extremum surfaces of the
world ocean are described by the analysis and plotting of data from
885 hydrographic stations in the three major oceans, the Southern
Ocean, and the American Mediterranean Sea. The distributions of
salinity, temperature, depth, and density along the extremum surfaces,
plotted...
It was the intent of this investigation to compare the performance
of community college students to four-year institutional students, both
of whom were enrolled in a college general biology program (GS 101,
102, 103) during the 1967-68 academic year. During the week of
May 27, 1968 measurements were taken of...
In recent years the conversion of agricultural lands to more
intensive non-rural land uses has become a focus of increasing public
awareness and concern. The growing attention to farmland conversion
is manifested in increasing public policies and legilsation to protect
agricultural and forestry land uses. Nevertheless, our understanding
of the...
The purpose of this study was to investigate the relationship
between specific mother-child interactions and selected aspects of
language development in "disadvantaged" children.
The subjects were 19 preschool children in a summer Head
Start program in Denver, Colorado. Their ages ranged from four
years-nine months to five years-seven months. Eighteen...