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Volatile Compounds On The Leaf Surface Of Intact And Regrowth Tarbush (Flourensia Cernua Dc) Canopies, Ed Frederickson, R. Estell, M. Remmenga
Volatile Compounds On The Leaf Surface Of Intact And Regrowth Tarbush (Flourensia Cernua Dc) Canopies, Ed Frederickson, R. Estell, M. Remmenga
Ed L. Frederickson
Shrub expansion into desert grasslands is a serious problem resulting in loss of forage and rangeland productivity. Flourensia cernua DC (tarbush) is one such shrub contributing to the decline of Chihuahuan Desert grasslands. Our previous research has shown tarbush consumption by sheep and goats to be negatively related to leaf surface concentration of individual terpenes and epicuticular wax. Concentrations of compounds such as terpenes often change with plant age and phenology. Our objective was to examine the effect of altering the vegetative state of tarbush on volatile chemicals. Ninety tarbush plants were randomly selected, and all biomass within 10 cm …
Identifying The Core Periodical Literature Of The Agricultural Communications Documentation Center, Joseph Zumalt
Identifying The Core Periodical Literature Of The Agricultural Communications Documentation Center, Joseph Zumalt
Joseph R. Zumalt
Agricultural communications" is an emerging field which is naturally both part of the "agriculture" and "communications" literature. However, it is much broader than just a subset of each. The coverage of standard databases such as CAB Abstracts and Communication Abstracts, while a good start, does not sufficiently cover the field. The Agricultural Communications Documentation Center (ACDC) at the University of Illinois at Urbana-Champaign has, over the last quarter century, worked to help define and collect this literature, by identifying relevant documents and entering them into a Web-searchable Microsoft Access database. An analysis of this database reveals important clues concerning the …