Sources of Economic Information Relating to Cattlemen's Production Decisions

This item is part of the Agricultural Experiment Station archive. It was digitized from a physical copy provided by the University Libraries at the University of Arizona. For more information, please email CALS Publications at [email protected]

Evaluation of Livestock Market News in Arizona

This item is part of the Agricultural Experiment Station archive. It was digitized from a physical copy provided by the University Libraries at the University of Arizona. For more information, please email CALS Publications at [email protected]

Market News and Related Information Received and Used by Arizona Beef Cattle Producers

This item is part of the Agricultural Experiment Station archive. It was digitized from a physical copy provided by the University Libraries at the University of Arizona. For more information, please email CALS Publications at [email protected]

Market News Sources for Arizona Cattle Producers

This item is part of the Agricultural Experiment Station archive. It was digitized from a physical copy provided by the University Libraries at the University of Arizona. For more information, please email CALS Publications at [email protected]

The Need for a Livestock Market News Service in Arizona

This item is part of the Agricultural Experiment Station archive. It was digitized from a physical copy provided by the University Libraries at the University of Arizona. For more information, please email CALS Publications at [email protected]

The Arizona Range Cattle Market Report: An Experiment in Country-Sale Reporting

This item is part of the Agricultural Experiment Station archive. It was digitized from a physical copy provided by the University Libraries at the University of Arizona. For more information, please email CALS Publications at [email protected]

Marketing Cattle and Calves From Small Feedlots in Arizona and California

This item is part of the Agricultural Experiment Station archive. It was digitized from a physical copy provided by the University Libraries at the University of Arizona. For more information, please email CALS Publications at [email protected]

The Importance of Agricultural Production in Maricopa County, Arizona, Economy

This item is part of the Agricultural Experiment Station archive. It was digitized from a physical copy provided by the University Libraries at the University of Arizona. For more information, please email CALS Publications at [email protected]

Wood Decay in Silicified Gymnosperms from Antarctica

This is the publisher's version, also available electronically from http://www.jstor.org.Gymnospermous secondary xylem degraded by wood-decaying fungi was examined in silicified fossils from Antarctica. AraucarioxyIon-type wood from the Triassic and specimens of Vertebraria from the Permian demonstrate similar patterns of decay. Specimens are characterized by irregularly shaped areas lacking cells and are infected with branched, septate hyphae with clamp connections. The decay in these fossils is comparable in appearance to present-day rots caused by basidiomycetes. Two patterns of decay are evident: (1) A wall component, presumably lignin, is removed from the wall and middle lamella of infected tracheids, leaving a considerably thinner cellulose framework; and (2) the primary and secondary walls typically separate, and all wall layers are progressively reduced in thickness and eventually removed. The middle lamella, particularly where it is thickest in the corners between cells, persists longer than other layers. Indications of host response to fungal attack include the production of possible wall appositions. Evidence of wood decay occurs as early as the Upper Devonian, and all reported cases from the fossil record are similar to those found today

A possible endogonaceous fungus from the Triassic of Antarctica

No abstract is available for this item