Thesis (M.S.)--Oregon State University, 2010. / Printout. Includes bibliographical references (leaves 124-131). Also available on the World Wide Web.

No description available.

One major problem plaguing reed canarygrass (Phalaris arundinacea L.), a high yielding perennial grass, is its poor seed retention. Folded leaf progeny plants from a cross involving a seed-retaining clone were observed in a space-planted nursery. The objectives of this study were to determine whether the folded leaf trait was associated with higher seed retention and other agronomic traits. The inheritance of this trait was also investigated through crosses performed and evaluated in the field and greenhouse. Under solid stand conditions, highly significant differences (p < 0.01) existed between folded and flat leaf polycross progeny entries for heading date and seed retention percentage. Under space-planted conditions folded leaf plants were significantly different (p < 0.05) from flat leaf plants for height, head length, panicle number and growth habit. Widely divergent segregation ratios led to the rejection of the proposed model of inheritance -- disomic inheritance with duplicate gene action.

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No description available.

The Canary islands are formed by a slow moving hotspot, from Fuerteventura 20 Ma to el Hierro 1.2Ma years old and La Palma is in the shield building stage of evolution. La Palma had its last eruption 1971 and has had seven eruptions since 1430, which makes it the most active of the islands in our times. The samples consist of host lavas, basanites, and mafic/ultramafic and felsic xenoliths, alkali gabbros and syenites respectively. Minerals in the lavas and the alkali gabbro xenolith samples are clinopyroxene, olivine, amphibole and plagioclase, the clinopyroxenes are zoned. Forsterite content in the olivines increases at the rim for the xenoliths and decreases for the host lavas. While magnesium number in the clinopyroxenes decreases towards the rim. The Fe-Mg partitioning indicates that there were points of equilibrium between the clinopyroxenes and their host lavas, which was calculated to temperature, pressure and depth indicating 62-74km for the xenoliths and 23-35km for the host lavas. The temperatures and pressures were 1184-1205°C with 6-10 kbar for the host lavas compared to 1316-1341°C and 17-20 kbar for the xenoliths.

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Thesis (Ph. D.)--University of Washington, 2008. / Includes bibliographical references (leaves 96-106).

Theses (M.S.)- -University of Hawai'i at Hilo, 2009 / Advisor : Hart, Patrick J. Bibliography : p. 24-27.

Thesis (Ph. D.)--Oregon State University, 2006. / Printout. Includes bibliographical references (leaves 109-115). Also available on the World Wide Web.