Nomia melanderi Cockerell is one of the most efficient pollinators of alfalfa in Eastern Oregon. Emergence begins in June, usually reaches its peak in early July, and may continue into early August. Male emergence precedes female emergence by four or five days. For the first few weeks of this time,...
Experiments were done to determine the effect of some
factors on the level of transmission of bean yellow mosaic
virus (BYMV) by aphids. The effect of different source
plant treatments, the effect of light on test plant susceptibility,
and the effect of a second virus on the transmission
of BYMV...
A study was conducted to investigate the nature of hydroxy
interlayers in the chlorite-like intergrade clays of three Oregon
soils with respect to kind, amount, stability, and conditions of
formation.
The clays of the Hembre, Wren, and Lookout soils, selected to
represent weathering products originating from basaltic materials
under humid,...
Over 10,000 feet of marine and nonmarine Late Cretaceous sedimentary rocks are exposed within a 110 square mile area in northeastern Teton County, Wyoming. An additional 1400 feet of nonmarine Paleocene and Miocene rocks overlie these. Landslide deposits and Pleistocene glacial moraine cover over one-half of the area. The Late...
This study was designed to evaluate the relative effectiveness
of a new college general biology course which utilized an audio -
tutorial laboratory as contrasted with a traditional lecture course.
Five biology classes with 720 students at the Kansas State
Teachers College in Emporia, Kansas, participated in the study.
The...