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A Synopsis Of The Ferns And Fern Allies Of Nebraska, With Maps Of Their Distribution, Steven B. Rolfsmeier, Robert B. Kaul, David M. Sutherland

School of Biological Sciences: Faculty Publications

An annotated list and county-by-county distribution maps are presented for the 32 species of ferns and fern allies native to Nebraska, based upon field and herbarium studies and critical evaluation of the literature. Native to the state are Isoetes melanopoda, Selaginella rupestris, five species of Equisetum, and 25 species in 18 genera of ferns. Three native species are here verified for the first time, based upon recent collections: Matteuccia struthiopteris var. pensylvanica, Ophioglossum engelmannii, and Pellaeaglabella ssp. glabella. Isoetes melanopoda was rediscovered in 2000, the first record since 1941. Rejected are published reports …

Molecular Phylogenetic Studies In Rosaceae, Christopher S. Campbell

University of Maine Office of Research Administration: Grant Reports

This project will investigate the evolutionary relationships within the large and important rose family. This group of plants contains numerous commercially valuable fruits (apples, pears, strawberries, cherries, peaches, plums, blackberries, and raspberries) and many horticulturally significant plants (roses, cotoneaster, lady's mantle, bridle-wreath, flowering quince, fire-thorn, cinqfoil, and others). Despite the large and important role that these plants play in our daily lives and scientific interest, we do not have a clear view of the evolutionary relationships of members of the family. A primary reason for this situation is that insufficient evidence has been accumulated to adequately address the problem. A …

West River Ag Center Crops And Soils Research Annual Progress Report, 2001, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This is the 2001 progress report of the West River Crops and Soils Research Projects, South Dakota Agricultural Experiment Station. This document includes reports on: weather and climate, wheat and grain variety trials, management and tillage, and weed and pest control.

Northeast Research Station Watertown, South Dakota Annual Progress Report, 2001, Agricultural Experiment Station, Plant Science Department

Agricultural Experiment Station and Research Farm Annual Reports

This is the 2001 annual progress report for the Northeast Research Station in Watertown, South Dakota. This report is issued by the South Dakota Agricultural Experiment Station and the South Dakota State University Plant Science Department. This report includes weather data, yield comparisons, crop performance trials, corn trials, soybean trials, winter wheat performance testing, Barley Foliar information, weed and pest control, herbicide demonstrations, canola and flax variety trials and more.

Pb1689-So You Want To Grow Grapes In Tennessee, The University Of Tennessee Agricultural Extension Service

Commercial Horticulture

Tennessee has a long history of grape production. Most recently, passage of the Farm Winery Act in 1978 stimuated an upsurge of interest in grape production. If you are considering growing grapes, the following information may be useful to you.

Antigen Polymorphism In Borrelia Hermsii, A Clonal Pathogenic Bacterium, Stephen M. Rich, Stanley A. Sawyer, Alan G. Barbour

Stephen M. Rich

The relapsing fever spirochete, Borrelia hermsii, escapes immune selection by alternating expression of surface lipoprotein alleles. The switch results from a duplicative transposition of one of several surface lipoprotein-encoding nucleotide sequences into the singular expression site. These nucleotide sequences constitute a large gene family whose diversity originated, in some cases, before the major divergences of Borrelia species. We have examined the B. hermsii vsp subfamily of alleles, which are carried on linear plasmids within each cell and maintained in several diverse copies as an antigenic archive. Each encodes a distinct serotype-specific protein. We sequenced more than 90% of the alleles …

Bulletin No. 37: Living Resources And Habitats Of The Lower Connecticut River, Glenn D. Dreyer, Marcianna Caplis

Bulletins

No abstract provided.

Plant Spacing Demonstration Plot With Jack-O-Lantern And Giant Pumpkins, Elizabeth Maynard

Midwest Vegetable Trial Reports

Plant spacing is known to influence the size of pumpkins. To demonstrate this influence two jack-o-lantern cultivars and two giant pumpkin cultivars were grown at narrow and wide in-row spacings at Coulter's Farm in Westville, Indiana.

Fresh Market Tomato Cultivar Observation Trial For Northern Indiana, 2001, Elizabeth Maynard

Purdue Fruit and Vegetable Research Reports

Fresh market tomatoes were grown in an unreplicated trial at the Pinney-Purdue Agricultural Center in Wanatah, Indiana. The trial included 11 red beefsteak types, one yellow stuffing type, and one smallfruited yellow type. Yield and average fruit number are reported.

Pumpkin Cultivar Performance In Northern Indiana, 2001, Elizabeth Maynard

Purdue Fruit and Vegetable Research Reports

Pumpkin cultivars and lines were evaluated in plots at Coulter's Farm in Westville, Indiana. This paper presents yield, fruit number, and average fruit size for twenty-one jack-o-lantern types and five pie types.

Specialty Tomato Cultivar Trial For Indiana, 2001, Elizabeth Maynard, Dale Rhoads, Sandy Rhoads

Purdue Fruit and Vegetable Research Reports

Colorful tomato salads are a seasonal menu item for some restaurants. The many colors of tomato fruit available include orange, green, white, yellow and, of course, red. Producers growing for this market have a choice of several cultivars of each color, and sometimes several fruit shapes within a color. Many of the cultivars are open-pollinated but some hybrids are available. Prior experience at Rhoads Farm and elsewhere has shown that many open-pollinated cultivars yield poorly under Indiana conditions, making them an unprofitable crop. The trials presented in this report were established to evaluate tomato cultivars for the restaurant salad market.

Fresh Market Tomato Pruning Trial For Northern Indiana, 2001, Elizabeth Maynard

Purdue Fruit and Vegetable Research Reports

Pruning tomatoes is known to increase average fruit size and decrease total yield. Effects on marketable yield and early yield vary among cultivars and with the degree of pruning. This trial was conducted to evaluate a range of pruning treatments on two cultivars grown in the Midwest: Mountain Spring and Florida 91. Florida 91 has a larger vine and is later-maturing than Mountain Spring. The trial was conducted at the Pinney-Purdue Agricultural Center in Wanatah, Indiana.

Plant Spacing Demonstration Plot With Jack-O-Lantern And Giant Pumpkins, Elizabeth Maynard

Purdue Fruit and Vegetable Research Reports

Plant spacing is known to influence the size of pumpkins. To demonstrate this influence two jack-o-lantern cultivars and two giant pumpkin cultivars were grown at narrow and wide in-row spacings at Coulter's Farm in Westville, Indiana.

Supersweet Sweet Corn Cultivar Evaluation For Northern Indiana, 2001, Elizabeth Maynard

Purdue Fruit and Vegetable Research Reports

Thirty-three supersweet (sh2) sweet corn cultivars were evaluated at the Pinney-Purdue Ag Center, Wanatah, IN. Yield, ear size, and ear quality are reported.

Fresh Market Tomato Cultivar And Pruning Evaluation For Northern Indiana, 2000, Elizabeth Maynard

Purdue Fruit and Vegetable Research Reports

Fresh market tomatoes were evaluated at the Pinney-Purdue Agricultural Center in Wanatah, Indiana. Nine beefsteak types and one roma type were evaluated in a replicated trial. Plants were grown with and without pruning to evaluate pruning effects on yield and fruit quality. The main benefit of pruning is larger fruit size. For some cultivars, there might be an increase in total yield at the first harvest with pruning, as was seen to a small extent for Mt. Spring. Pruning also reduced the incidence of catfacing, especially for early cultivars. The main drawback of pruning is reduced yield. For pruning to …

Fresh Market Tomato Cultivar And Pruning Evaluation For Northern Indiana, 2000, Elizabeth Maynard

Midwest Vegetable Trial Reports

Fresh market tomatoes were evaluated at the Pinney-Purdue Agricultural Center in Wanatah, Indiana. Nine beefsteak types and one roma type were evaluated in a replicated trial. Plants were grown with and without pruning to evaluate pruning effects on yield and fruit quality. The main benefit of pruning is larger fruit size. For some cultivars, there might be an increase in total yield at the first harvest with pruning, as was seen to a small extent for Mt. Spring. Pruning also reduced the incidence of catfacing, especially for early cultivars. The main drawback of pruning is reduced yield. For pruning to …

Pumpkin Cultivar Performance In Northern Indiana, 2001, Elizabeth Maynard

Midwest Vegetable Trial Reports

Pumpkin cultivars and lines were evaluated in plots at Coulter's Farm in Westville, Indiana. This paper presents yield, fruit number, and average fruit size for twenty-one jack-o-lantern types and five pie types.

Fresh Market Tomato Cultivar Observation Trial For Northern Indiana, 2001, Elizabeth Maynard

Midwest Vegetable Trial Reports

Fresh market tomatoes were grown in an unreplicated trial at the Pinney-Purdue Agricultural Center in Wanatah, Indiana. The trial included 11 red beefsteak types, one yellow stuffing type, and one smallfruited yellow type. Yield and average fruit number are reported.

Specialty Tomato Cultivar Trial For Indiana, 2001, Elizabeth Maynard, Dale Rhoads, Sandy Rhoads

Midwest Vegetable Trial Reports

Colorful tomato salads are a seasonal menu item for some restaurants. The many colors of tomato fruit available include orange, green, white, yellow and, of course, red. Producers growing for this market have a choice of several cultivars of each color, and sometimes several fruit shapes within a color. Many of the cultivars are open-pollinated but some hybrids are available. Prior experience at Rhoads Farm and elsewhere has shown that many open-pollinated cultivars yield poorly under Indiana conditions, making them an unprofitable crop. The trials presented in this report were established to evaluate tomato cultivars for the restaurant salad market.

Supersweet Sweet Corn Cultivar Evaluation For Northern Indiana, 2001, Elizabeth Maynard

Midwest Vegetable Trial Reports

Thirty-three supersweet (sh2) sweet corn cultivars were evaluated at the Pinney-Purdue Ag Center, Wanatah, IN. Yield, ear size, and ear quality are reported.

Septum Formation In Aspergillus Nidulans, Steven D. Harris

Department of Plant Pathology: Faculty Publications

Filamentous fungi form multicellular hyphae that are partitioned by septa. In A. nidulans, septum formation requires the assembly of a septal band following the completion of mitosis. Recent observations show that this band is a dynamic structure composed of actin, a septin and a formin. In addition, assembly is dependent upon a conserved protein kinase cascade that regulates mitotic exit and septation in yeast. Hyphal differentiation may reflect the regulation of this cascade by cyclin-dependent kinase activity. In this review, the dynamics and regulation underlying the assembly of the septal band are discussed.

The Influence Of Peat And Inorganic Amendments On Physical Properties Of Sand-Based Rootzones, Freddie C. Waltz Jr.

All Dissertations

Many golf course putting greens and athletic fields are constructed with a medium consisting of a high sand content. Peat is the most common amendment to rootzone sand (RZS). However, a trend to replace peat with inorganic soil amendments (IOSA), such as calcined clay (CC) and diatomaceous earth (DE), is occurring. Laboratory studies were conducted to evaluate physical and hydraulic properties of rootzone mixtures and a field study investigated the potential of IOSA as a replacement to peat. In laboratory evaluations, amended RZS reduced the bulk density of all mixtures, while saturated hydraulic conductivity (Ksat) for the RZS and mixtures …

Southeast South Dakota Experiment Farm Annual Progress Report, 2001, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This publication is the forty-first Annual Progress Report, featuring many of the crop and livestock research and demonstration projects conducted at the Southeast Research Farm in 2001 by the dedicated faculty, staff, and graduate students associated with the South Dakota Agricultural Experiment Station and Cooperative Extension Service as well as the directors and members of Southeast South Dakota Experiment Farm Corporation.

Central Crops And Soils Research Station Highmore, South Dakota: Annual Progress Report, 2001, Agricultural

Agricultural Experiment Station and Research Farm Annual Reports

This report of the Central Crops and Soils Research Station at Highmore, South Dakota is a progress report and, therefore, the results presented are not necessarily complete nor conclusive. The data presented in this report reflect the 2001 growing season. The document includes reports on: temperature and precipitation, field evaluations on woody plant materials, assessment of herbicides for switchgrass establishment in the Northern Great Plains, alfalfa and grass breeding, weed control, suppressing alternaria blight of safflower with foliar fungicides, fertilizer and soil test effects on soybean yield, small grain variety performance trials, alfalfa production influence of planting date on winter …

Characterization Of Biochelators, Membrane Redox Systems, And Quinone Reductases From Wood Degrading Basidiomycetes, Weihong Qi

Electronic Theses and Dissertations

Biodegradation of wood by brown rot fungi is dependent upon a non-enzymatic system involving Fenton chemistry. Iron biochelators with molecular weights lower than 1kD are important components in this process. Phenolate biochelators drive a hydroxyl radical generating Fenton reaction by reducing ferric iron. Biochelators may be mineralized or alternately, in some cases oxidized biochelators may be regenerated via a quinone redox cycle. Electron donors for this postulated regeneration have not been identified. Extracellular cellobiose dehydrogenase has also been found to drive the Fenton reaction by generating ferrous iron and hydrogen peroxide. This research compared the production of biochelators and the …

Study Of Conidia Production And Transmission Of Beauverza Bassiana (Balsamo) Vuill. In Colorado Potato Beetle (Leptinotarsa Decemlineata), Silvia Fernandez

Electronic Theses and Dissertations

This work is an investigation of:( 1) mortality of the Colorado potato beetle (CPB), Leptinotarsa decemlineata (Say), under different modes of exposure to the pathogen Beauveria bassiana (Bals.) Vuill., (2) host and environmental factors affecting sporulation, production, and viability of B. bassiana conidia from infected cadavers of CPB larvae, and (3) transmission of the disease in CPB populations. The research leads to an improved understanding of the process of transmission of B. bassiana in CPB populations. This may enhance its use as a biological control agent for this pest insect. The highest rate of mortality of CPB larvae (77 percent) …

Efficacy Of Sucker Control Method And Effect Of Topping Height On Axillary Bud Growth In Dark Fire-Cured Tobacco, Leslie Thompson

Masters Theses & Specialist Projects

The removal of terminal buds (topping) and sucker control are two practices that have an impact on yield and quality of dark tobacco (Nicotiana tabacum L.). Topping breaks apical dominance and encourages the growth of axillary buds (suckers). Following topping, growth regulator chemicals known as suckercides are commonly used to prevent axillary bud growth. Research has demonstrated that topping time, height, and sucker control method influence the quality and yield of the final product. Delaying topping past a critical developmental stage has been shown to reduce leaf yield. Topping height varies among geographical regions with most dark tobacco producers topping …

Fresh Market Tomato Pruning Trial For Northern Indiana, 2001, Elizabeth Maynard

Midwest Vegetable Trial Reports

Pruning tomatoes is known to increase average fruit size and decrease total yield. Effects on marketable yield and early yield vary among cultivars and with the degree of pruning. This trial was conducted to evaluate a range of pruning treatments on two cultivars grown in the Midwest: Mountain Spring and Florida 91. Florida 91 has a larger vine and is later-maturing than Mountain Spring. The trial was conducted at the Pinney-Purdue Agricultural Center in Wanatah, Indiana.

Efficacy Of Soybean Herbicides On Annual Morninglory, Dawn Oveson

Masters Theses & Specialist Projects

Field experiments were established in 2000 and 2001 at the Agricultural Research and Education Complex in Bowling Green, Kentucky to evaluate herbicide efficacy on annual morningglory (Ipomoea spp.) species and other weeds. A randomized complete block design was utilized in each study with each treatment being replicated three times. Plots consisted of four 76 cm rows, 9.1 m in length. The two center rows of each plot were treated, with the outside rows of each plot serving as a weedy check. Crop response, weed control, and grain yield data were collected. Four different experiments were conducted. Two experiments utilized treatments …

The Prairie Naturalist Volume 33, No.4 December 2001

The Prairie Naturalist

SPECIES, SEASON, AND DENSITY OF BURIED SEEDS SURVIVING FOX SQUIRREL DEPREDATION ▪ C. C. Smith, and J. M. Briggs

RELATI0NSHIP OF HYDROLOGICAL CONDITIONS AND POPULATlONS OF BREEDING PIPING PLOVERS ▪ D. S. Licht,

DEMODICOSIS IN A WHITE-TAILED DEER (ODOCOILEUS VIRGINIANUS) IN SOUTH DAKOTA ▪ C. N. Jacques, J. A Jenks. M. B. Hildreth. R. J. Schauer, and D. D. Johnson

SURVEYS OF CALLING AMPHIBIANS IN NORTH DAKOTA ▪ D. H. Johnson, and R. D. Batie

EFFECTS OF HUMAN PRESENCE ON VOCALIZATIONS OF GRASSLAND BIRDS IN KANSAS ▪ S. L Bye, R. J. Robel, and K. E. Kemp

Reviewers 2001

Author …