Botany Commons^™

Effects Of Mineral Nutrition On Components Of Reproduction In Clarkia Ungucilata, Frank C. Vasek, Vincent Weng, Robert J. Beaver, Charles K. Huszar

Aliso: A Journal of Systematic and Floristic Botany

An experiment was conducted to determine the effects of nutritional level and flower location on factors related to flower, pollen, and ovule production, and to determine what developmental patterns would be modified to mediate any observed changes. Plants subjected to high nutrient levels developed larger leaves, more branches, more flowers on both the main stem and the branches, and opened their first flowers 6 days sooner than plants at lower levels of nutrients. Total flower number increased from 72.2 to 626.8 per plant, with most of the increase produced on the primary branches. The number of pollen grains in the …

Evaluation Of Repellent Seed Treatments And Effects On Early Corn Performance, Ann E. Koehler, Ron J. Johnson, Orvin C. Burnside, Stephen R. Lowry

Department of Agronomy and Horticulture: Faculty Publications

A combination of field, field enclosure, and germination chamber studies was used to evaluate the effects of methiocarb [3,5-dimethyl-4-(methylthio)phenol methylcarbamate] and thiram (tetramethylthiuram disulfide) repellent seed treatments on early corn performance. The thiram treatments used (0.08, 0.4,0.8,0.5,1.25, and 2.5% active ingredient by corn seed weight) had negligible effects on germination/emergence time or on com plant heights. The thiram treatments never reduced stand counts in comparison to controls, but apparently increased stand counts in some trials, particularly under wet conditions. The methiocarb treatments evaluated (0.5, 1.25, 2.5, and 5.0% active ingredient by corn seed weight) had only occasional effects on early …

Reproductive Structure Of Lithocarpus Sensu Lato (Fagaceae): Cymules And Fruits, Robert B. Kaul

School of Biological Sciences: Faculty Publications

Seventy-three species were examined for structural and developmental details of the cymules and fruits. The cymules bear one to seven or more flowers and are subtended by one to nine or more bracteoles. Generally, the number of flowers and bracteoles in the pistillate cymules is the same or less than in the staminate ones. Some of the latter have an inner set of bracteoles that could be homologous to the pistillate cupule. Scales are present at anthesis on the cupules of all species examined, but in some species they fail to enlarge, are torn or disintegrate, or fall away as …

Cyanogenic Plants Of Illinois, Kevin E. Aikman

Masters Theses

Cyanogenesis in 50 species of vascular plants collected from east central Illinois was studied by examining 10 populations of each species. Each population consisted of 30 individuals, which gave an over all sample size of 300 plants per species. Herbarium specimens from the Stover Herbarium of Eastern Illinois University (EIU) were also tested for the presence of cyanide. More than 20,000 specimens were tested for this study which included cultivated plants, introduced weeds, and native plant species. The speed and degree of the HCN reaction as well as the specific plant part tested were included to give a more specific …

Medicinal Herbs Of Central Illinois, James E. Hefley

Masters Theses

A survey of the medicinal plants of central Illinois was conducted from fall of 1985 to the summer of 1987. This study concentrated on those herbaceous plants which have a scientific basis for their medicinal value. The study range included the following counties: Coles, Moultrie, Shelby, Fayette, Christian, and Montgomery.

In this paper, 58 species were considered, representing 33 families. A description of external morphology is included for each specimen, as well as folknames and habitat preferences. In addition, the medicinal qualities and active constituents are included for each specimen, as well as comments about their scientific and folknames.

In …

Division Lycopodiophyta, Stanley L. Welsh, N. Duane Atwood, Sherel Goodrich, Larry C. Higgins

Great Basin Naturalist Memoirs

No abstract provided.

Introduction (English, French, German, And Spanish), Stephen L. Wood, Donald E. Bright Jr.

Great Basin Naturalist Memoirs

No abstract provided.

Division Magnoliophyta – Class Liliopsida, Stanley L. Welsh, N. Duane Atwood, Sherel Goodrich, Larry C. Higgins

Great Basin Naturalist Memoirs

No abstract provided.

Division Polypodiophyta, Stanley L. Welsh, N. Duane Atwood, Sherel Goodrich, Larry C. Higgins

Great Basin Naturalist Memoirs

No abstract provided.

Division Equisetophyta, Stanley L. Welsh, N. Duane Atwood, Sherel Goodrich, Larry C. Higgins

Great Basin Naturalist Memoirs

No abstract provided.

Glossary, Stanley L. Welsh, N. Duane Atwood, Sherel Goodrich, Larry C. Higgins

Great Basin Naturalist Memoirs

No abstract provided.

Description Of The Environment, Stanley L. Welsh, N. Duane Atwood, Sherel Goodrich, Larry C. Higgins

Great Basin Naturalist Memoirs

No abstract provided.

T–Z, Anonymous, Stephen L. Wood, Donald E. Bright Jr.

Great Basin Naturalist Memoirs

No abstract provided.

I–L, Stephen L. Wood, Donald E. Bright Jr.

Great Basin Naturalist Memoirs

No abstract provided.

A–D, Stephen L. Wood, Donald E. Bright Jr.

Great Basin Naturalist Memoirs

No abstract provided.

A Survey Of The Vascular Flora Of Black Hawk County, Iowa, Karen E. Van Norman

Dissertations and Theses @ UNI

Black Hawk County, located in the east-central part of the state of Iowa, is a political subdivision of 570 square miles. The topography of the county is the result of glaciation, erosion and deposition, causing gently rolling plains. The Cedar and the Wapsipinicon rivers transect the county from the northeast to the southwest. With their tributaries, these rivers comprise a natural drainage network which has enhanced agricultural practices throughout the county.

The vascular flora of the county was surveyed in the field during the growing seasons of 1982 and 1983. Over 1500 voucher specimens were collected. Data were also compiled …

The Characteristics And Phytogeographic Affinities Of The Flora Of Nine-Mile Prairie, A Western Tall-Grass Prairie In Nebraska, Robert B. Kaul, Steven B. Rolfsmeier

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Three hundred ninety-two species, subspecies, and varieties have been recorded at Nine-Mile Prairie, a relict tall-grass prairie that has been reduced from 323 to 97 ha in the past 50 years. There are 218 native and 17 introduced herbaceous perennial species, and 73 native and 24 introduced annuals. Analogous numbers for biennials are 15 and 11, for shrubs are 14 and one, for trees are ten and three, and for woody vines are six and none. One hundred twenty-one native species are of central and eastern North American phytogeographic affinity, and 109 are of transcontinental affinity. Seventy-nine of the Prairie's …

New And Corrected Records Of The Flora Of Nebraska, Steven B. Rolfsmeier, Robert B. Kaul, David M. Sutherland

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

New distributional data are provided for 27 species of vascular plants in Nebraska, eight newly recorded as growing wild in the State. The record of one species previously attributed to the State is shown to be based upon misidentified specimens, the range of another is shown to be much more restricted in Nebraska than previously reported, and nomenclature is corrected for two species.

Sfa Gardens Newsletter, Dec 1986, Sfa Gardens, Stephen F. Austin State University

SFA Gardens Newsletters

No abstract provided.

Full Issue, Vol. 10

Great Basin Naturalist Memoirs

No abstract provided.

An Inventory Of Apiculture Land Use Surveys, R C. Burking

Soil conservation survey collection

Each year the Apiculture Section of the Western Australian Department of Agriculture undertakes a series of surveys relating to flora prospects, land area suitability or wildfire damage to bee pastures. Such surveys may vary according to the requirements both in time and intensity and the report may be presented as a Departmental file comment or be of such significance to warrant a suitable publication. The Department of Agriculture is at present collating numerous surveys and reports undertaken by a variety of Research Officers in various Divisions. Computer data bases have been set up utilising the Records Management System which will …

Arceuthobium Campylopodum Engelm., Daniel L. Nickrent, Pat Kelly

Specimens by Name

No abstract provided.

Acer Negundo L., R. Dale Thomas, Dendrology Class, Northeast La U

Specimens by Name

No abstract provided.

Phyla Nodiflora (L.) Greene, R. Dale Thomas

Specimens by Name

No abstract provided.

Arceuthobium Campylopodum Engelm., Daniel L. Nickrent

Specimens by Name

No abstract provided.

Arceuthobium Campylopodum Engelm., Daniel L. Nickrent

Specimens by Name

No abstract provided.

Paul Alan Cox And Joel C. Janetski's Review Of Patrick Vinton Kirch's The Evolution Of The Polynesian Chiefdoms, Paul Alan Cox, Joel C. Janetski

Pacific Studies

No abstract provided.

The Effect Of Pre-Sterile Medium Ph Photoperiod And N6-(2-Isopentenyl)-Adenine (2ip) On Shoot Production During Stage Ii Micropropagation Of Rhododendrons, Lori Longo Smith

Biological Sciences Theses & Dissertations

The number of shoots produced during a six week subculture of two Rhododendron sp., cultivars Rocket and Gibraltar was the same for both 16 and 24 hour photoperiods under cool white fluorescent lights, whereas significantly fewer shoots were produced under a 10 hour photoperiod for ‘Rocket.' Increasing concentrations of N₆- (2-isopentenyl)- adenine (2iP) from 0 to 32 μMin Anderson's medium resulted in proportional increases in shoot number. When shoots were cultured in the presence of indole-3-acetic acid (IAA) and 2iP, shoot multiplication was increased significantly over shoots cultured with 2iF alone. No interaction affecting shoot multiplication was …

Sfa Gardens Newsletter, Sept 1986, Sfa Gardens, Stephen F. Austin State University

SFA Gardens Newsletters

No abstract provided.

The Prairie Naturalist Volume 18, No. 2. June 1986

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

WINTER ECOLOGY OF BALD EAGLES IN SOUTHCENTRAL NEBRASKA ▪ G. R. Lingle and G. L. Krapu

NATURAL HISTORY OF THE PLAINS POCKET MOUSE IN AGRICULTURALLY DISTURBED SANDSAGE PRAIRIE ▪ K. M. Reed and J. R. Choate

COMMERCIAL SUNFLOWERS: FOOD FOR RED FOXES IN NORTH DAKOTA ▪ A. B. Sargeant, S. H. Allen, and J. P. Fleskes

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA - 1985 ▪ R. N. Randall

NEST SITES OF DUCKS IN GRAZED MIXED-GRASS PRAIRIE IN NORTH DAKOTA ▪ H. F. …