Botany Commons^™

Age Dependence Of Spiral Grain In White Oaks (Quercus Alba) In Southcentral Illinois, Julia Rauchfuss

All-Inclusive List of Electronic Theses and Dissertations

Spiral grain, the alignment of wood fibers (tracheids) to the longitudinal axis of trees, is thought to be an indicator of old age and is a phenomenon that has been only studied with destructive sampling methods (cutting down trees). In this study, the usefulness of non-fatal sampling methods and existing methods to quantify spiral grain patterns in living and dead deciduous trees are examined, particularly in white oaks (Quercus alba). The overall goal is to determine if spiral grain growth is a reasonable indicator of tree age. Methods that were tested included the use of a 12 mm increment borer …

The Prairie Naturalist Volume 36, No.4 December 2004

The Prairie Naturalist

ROADSIDE BIAS IN POINT COUNT SURVEYS AT ARROWWOOD NATIONAL WILDLIFE REFUGE, NORTH DAKOTA ▪ J. S. Dieni and P. Scherr

HISTORY OF GREATER SAGE-GROUSE IN THE DAKOTAS: DISTRIBUTION AND POPULATION TRENDS ▪ . J. T. Smith, L. D. Flake, K. F. Higgins, and G. D. Kobriger

PATCH USE BY A MONOPHAGOUS HERBIVORE IN FRAGMENTED PRAIRIE LANDSCAPES ▪ . M. J. St. Pierre and S. D. Hendrix

SNOWSHOE HARE OCCURRENCE AND WINTER HABITAT ON THE MISSOURI COTEAU IN NORTH DAKOTA ▪ R. K. Murphy 243

HIGH ABUNDANCE OF NESTING LONG-EARED OWLS IN NORTH DAKOTA ▪ R. K. Murphy, L. J. Rosenfield, …

Pineywoods Native Plant Center News, December 2004, Sfa Gardens, Stephen F. Austin State University

SFA Gardens Newsletters

No abstract provided.

Arkansas Soybean Performance Tests 2004, D. G. Dombek, D. K. Ahrent, R. D. Bond, I. L. Eldridge

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

Arkansas Corn And Grain Sorghum Performance Tests 2004, D. G. Dombek, D. K. Ahrent, R. D. Bond, I. L. Eldridge

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

Phoradendron Leucarpum (Raf.) Reveal & M.C. Johnston, Loy R. Phillippe

Specimens by Name

No abstract provided.

Pineywoods Native Plant Center, Dec 2004, Sfa Gardens, Stephen F. Austin State University

SFA Gardens Newsletters

No abstract provided.

A Brief Note On The Authorship Of The First Flora Virginica: Clayton, Gronovius, And Linnaeus, Joan K. Stemmler

Virginia Journal of Science

A modern Flora of Virginia will soon be published, providing an occasion to remember the publication of the first Flora Virginica in the 18th century and to establish the proper attribution of its authorship. Based on a manuscript by John Clayton, Flora Virginica was published in two parts in 1739 and 1743 by the Dutchman Johan Frederick Gronovius. Although both names are printed on the title page, the book is often cited with Gronovius listed as the author. This tradition, interpreted in modern understandings of plagiarism, has led to an assertion that Gronovius misrepresented Clayton's work as his own. This …

Pineywoods Native Plant Center, Fall 2004, Sfa Gardens, Stephen F. Austin State University

SFA Gardens Newsletters

No abstract provided.

Horticultural Studies 2003, James A. Robbins, Brad Murphy, Mike Richardson

Arkansas Agricultural Experiment Station Research Series

We are pleased to bring you the sixth edition of Horticultural Studies. This publication, beginning with Horticultural Studies 1998, has continued to bring to the citizens of Arkansas the latest reports about horticultural crop research being conducted throughout the University of Arkansas Division of Agriculture. Our goal with this publication was to bring annual up-to-date findings to the horticultural community in Arkansas so that you could utilize these new findings and/or contact the researchers for further information. We hope that this goal is being met. As editors, we strive to make this publication reader-friendly, timely, and hopefully of value to …

Summaries Of Arkansas Cotton Research 2003, Derrick M. Oosterhuis

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

Field Evaluations Of Herbicides On Vegetable, Small Fruit, And Ornamental Crops, 2000, 2001, & 2002, Ron E. Talbert, Mike L. Lovelace, Eric F. Scherder, Mayank S. Malik

Arkansas Agricultural Experiment Station Research Series

Field evaluations of herbicides provide the chemical industry, governmental agencies, such as IR-4, and the Arkansas Agricultural Experiment Station with an evaluation of herbicide performance on small fruit, vegetable, and ornamental crops grown under Arkansas conditions. This report provides a means for disseminating information to interested private and public service weed scientists.

Comptonia Peregrina (L.) J.M. Coult., Sean Jones

Specimens by Name

No abstract provided.

Ampelopsis Cordata Michx., John E. Ebinger, Loy R. Phillippe

Specimens by Name

No abstract provided.

Spiranthes Ovalis Var. Erostellata Catling, Gordon C. Tucker

Specimens by Name

No abstract provided.

Pineywoods Native Plant Center, Sept 2004, Sfa Gardens, Stephen F. Austin State University

SFA Gardens Newsletters

No abstract provided.

The Prairie Naturalist Volume 36, No.3 September 2004

The Prairie Naturalist

OVERLAND MOVEMENTS AND HABITAT USE OF MALLARD BROODS DEPARTING OVERWATER NESTING STRUCTURES ▪ J. D. Stafford, L. D. Flake, and P. W. Mammenga

NEST SITE CHARACTERISTICS OF EASTERN WILD TURKEY IN NORTHEASTERN SOUTH DAKOTA ▪ R. D. Shields and L. D. Flake

WHITE-TAILED DEER INFECTEUWITH STAPHYLOCOCCUS HYICUS IN SOUTH DAKOTA ▪ T. J. Zimmerman, J. A. Jenks, and A. E. Pillatzki

CLOSTRIDIUM PERFRINGENS TYPE A IN A FREE-RANGING FAWN? ▪ T. J. Brinkman, J. A. Jenks, C. S. DePerno, and B. S. Haroldson

BUFFLEHEAD BREEDING ACTIVITY IN SOUTH-CENTRAL NORTH DAKOTA ▪ G. A. Knutsen and J. C. King

POTENTIAL MULTIPLE …

Chloroplast Dna Rearrangements In Campanulaceae: Phylogenetic Utility Of Highly Rearranged Genomes, Mary E. Cosner, Linda A. Raubeson, Robert K. Jansen

All Faculty Scholarship for the College of the Sciences

Background

The Campanulaceae (the "hare bell" or "bellflower" family) is a derived angiosperm family comprised of about 600 species treated in 35 to 55 genera. Taxonomic treatments vary widely and little phylogenetic work has been done in the family. Gene order in the chloroplast genome usually varies little among vascular plants. However, chloroplast genomes of Campanulaceae represent an exception and phylogenetic analyses solely based on chloroplast rearrangement characters support a reasonably well-resolved tree.

Results

Chloroplast DNA physical maps were constructed for eighteen representatives of the family. So many gene order changes have occurred among the genomes that characterizing individual mutational …

Fraxinus Nigra Pott, Loy R. Phillippe, John E. Ebinger, William Mcclain

Specimens by Name

No abstract provided.

Cannabis Sativa L., John E. Ebinger

Specimens by Name

No abstract provided.

Lysimachia Hybrida Michx., Gordon C. Tucker

Specimens by Name

No abstract provided.

Goodyera Pubescens (Willd.) R. Br., Gordon C. Tucker

Specimens by Name

No abstract provided.

Epipactis Helleborine (L.) Crantz, Gordon C. Tucker

Specimens by Name

No abstract provided.

Viola Arvensis Murray, Gordon C. Tucker

Specimens by Name

No abstract provided.

Acer Saccharinum L., John E. Ebinger

Specimens by Name

No abstract provided.

Effects Of Management And Population Size On Genetic Diversity Of Eggert's Sunflower (Helianthus Eggertii; Asteraceae), John Howard Starnes

Masters Theses & Specialist Projects

Helianthus eggertii (Asteraceae) is a federally threatened sunflower species that typically grows between open woods and barrens. This species has both sexual and asexual modes of reproduction, which can influence the amount of genetic diversity present within and among populations. Maintaining genetic diversity is one of the primary objectives in managing threatened species or populations. Fire and population size may influence genetic diversity. Two Inter-Simple Sequence Repeat Markers (873 and MAO) were used to characterize many important genetic parameters of 17 populations in 2003 and four populations in 2004. This information was used to assess the effectiveness of different conservation …

B. R. Wells Rice Research Studies 2003, R. J. Norman, J.-F. Meullenet, K. A.K. Moldenhauer

Arkansas Agricultural Experiment Station Research Series

Arkansas is the leading rice-producing state in the U.S., representing just over 48% of the total U.S. production and 48.5% of the total acres planted to rice. Rice cultural practices vary across the state and across the U.S. However, due to changing political, environmental, and economic times, the practices are dynamic. This survey was initiated in 2002 to monitor how the changing times reflect the changes in the way Arkansas rice producers approach their livelihood. The survey was conducted by polling county extension agents in each of the counties in Arkansas where rice is produced. Questions included topics such as …

Verbena Urticifolia L., Gordon C. Tucker

Specimens by Name

No abstract provided.

Phyla Lanceolata (Michx.) Greene, Gordon C. Tucker

Specimens by Name

No abstract provided.

Vitis Riparia Michx., Gordon C. Tucker

Specimens by Name

No abstract provided.