Medicine and Health Sciences Commons^™

Factors Affecting The Translocation Of Herbicides In Mesquite (Prosopis Juliflora), Dale W. Young

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The control of mesquite is a major range problem in the Southwest. Mesquite is a thorny, woody shrub or tree that has infested 75 million acres of valuable range and pasture land in this region. It competes with grasses and other valuable plants for sunlight, moisture, and plant food. Mesquite also acts as a serious barrier to the handling of cattle on the range.

A Cyto-Taxonomic Study Of The Genus Geranium Within The Wasatch Region, Richard J. Shaw

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The western North American species of the genus Geranium have never been satisfactorily clarified. The perennial, indigenous species of this interesting group have been particularly confusing. One important reason for confusion in this group is the fact that the taxonomic problems of the perennial species have never been studied from the genetic point of view. A sound delimitation of specific and subspecific boundaries and phylogenetic relationships cannot be achieved without the application of cyto-genetic principles.

In respect to the cytological phase of this study, the author has placed emphasis on chromosome numbers in order to show evidences for and possible …