Senecio jacobaea (tansy ragwort) is a poisonous plant responsible
for livestock deaths in the Pacific Northwest. Horses and cattle are
susceptible, while sheep are resistant to the toxic action of the
pyrrolizidine alkaloids which the plant contains. Hepatic enzymes
are responsible for the biotransformation of pyrrolizidine alkaloids
into tissue damaging...
Several lower tolerance limit procedures are compared with regard
to efficiency and robustness. The procedures include the nonparametric
based on a single order statistic and the maximum likelihood
estimates for complete and censored samples from parametric families
of distributions. Right-censoring is considered as an approach for
improving the robustness of...
Published June 1979. 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
Fluxes of sulphur dioxide to wheat were measured over two growing seasons. The deposition velocity, vg, depended primarily on affinities of surfaces for SO2 and varied from less than 0.1 to about 1.5cms−1. Stomata were an important sink, and diurnal changes in stomatal resistance accounted for most of the variation...
Reprinted January 1979. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the Sea Grant Catalog: http://seagrant.oregonstate.edu/publications
An integrated study of growth, enzyme activity, and water potential of wheat seeds germinated under mild water stress conditions was conducted to observe the relationship among the three kinds of parameters studied. From the relationship, the cause(s) or mechanism(s) of water stress in plant growth may be enlightened. Two important...
The use of logistic-type growth curves in the prediction of future engineering manpower utilization patterns is a viable technique. When a work environment consists of a large number of repetitive type project the use of regression analysis and Weibull curve shapes gives a reliable forecast of the time-phased utilization of...