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Northwestern College

Northwestern College is a private Christian liberal arts college located in Orange City, Iowa. It is also known as Northwestern IA. It is affiliated with the Reformed Church in America (RCA). Northwestern began as an academy in 1882. It was then upgraded to junior college status in 1928. Then in 1961, it became the four-year institution it is today.

Abstract – Although native to northern U.S., the eastern red cedar (Juniperus virginiana) has quickly become invasive in areas of the Midwest where natural regeneration of planted trees is occurring. Because of the negative impact of red cedar on pastureland and prairies, ecologists have begun finding ways to control its spread. The best known methods include controlled burns and cutting the trunk at its base. However, adult eastern red cedars, once burned, can still cast large shadows on nearby plants needing sunlight.  Additionally, the dense, prickly foliage of the tree make it difficult to cut the trunk. We propose an alternative method via sex determination of seedlings by means of PCR analysis.  That is, female eastern red cedars could be identified via PCR and either not planted or removed as seedlings in a more efficient manner than if they were allowed to grow to maturity.  Farmers would still benefit from the eastern red cedar’s maintenance-free windbreaks, but without the hassle of their eventual invasion into pastureland and prairie.  Our research investigated a gene (Accession: AF151429) that codes for a pollen protein, and we tested whether female red cedars lack this gene and can thus be identified and removed before maturity. Introduction The invasive nature of the eastern red cedar has become a significant problem with farmers in the Midwest and surrounding areas. The current methods for mass removal of the juniper involve controlled burns or cutting th...
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