Date of this Version
Thesis (M.S.)--University of Nebraska--Lincoln, 1953. Department of Agronomy.
Investigations were conducted in Lincoln, Nebraska during the 1951 and 1952 growing seasons to evaluate the progenies of buffalograss, Buchloe dactyloides (Nutt.), and Engelm, and to determine which plants exhibited superior characteristics. Both measurements and visual ratings were taken for several characters related to yield and quality of forage and seed.
Controlled crossing was conducted in the greenhouse and the field. The immature seeds from these crosses were utilized for exploring certain aspects of embryo culturing techniques used in by-passing seed dormancy in buffalograss. When embryos were excised and cultured at various ages ranging from 15 to 20 days after pollination, the percentage of the embryos which produced seedlings was not affected. Axes excised from the scutellum and embryos with the scutellar tissue ruptured produced greater percentages of seedlings in the cultures than did the complete embryos.
Evaluations were made on 1200 hybrid buffalograss plants. Measurements were made for forage yield, height of inflorescence, and bur yield. Numerical ratings were taken for texture of foliage, color of foliage, vegetative productivity, abundance of flowering, and bur quality. Twenty male and thirty-six female plants were selected from the better crosses between superior male and female parents. Only those plants showing high superiority for several plant characters were selected.
Advisor: L. C. Newell.