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Articles 7561 - 7590 of 10759
Full-Text Articles in Botany
Viola Triloba Schwein., Loy R. Phillippe
Viola Striata Aiton, Loy R. Phillippe
Viola Affinis Leconte, Loy R. Phillippe
Viola Pensylvanica Michx., Loy R. Phillippe
Fraxinus Pennsylvanica Marsh., Loy R. Phillippe, Denise Schmidt
Fraxinus Pennsylvanica Marsh., Loy R. Phillippe, Denise Schmidt
Specimens by Name
No abstract provided.
Plant Responses To Clinostating And Mechanical Stress: Growth And Flowering Responses, Chauncy Steed Harris
Plant Responses To Clinostating And Mechanical Stress: Growth And Flowering Responses, Chauncy Steed Harris
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Plants rotated about a horizontal axis show certain growth responses. This research was designed to clarify which of the responses of clinostating are caused by gravity compensation and which are caused by mechanical stresses. Plants used were Xanthium strumarium L. (cocklebur) Chicago strain and Lycopersicon esculentum Mill. (tomato) cv. Rutgers. Six automated treatments that ran for five days were used to separate out the effects. Treatments were: 1) controls, 2) horizontal clinostat, 3) intermittent clinostat, 4) inversion (every 10 min), 5) invert and return, and 6) vertical rotation. Plant height and diameter changes were measured at ink dots with a …
Acer Negundo L., Loy R. Phillippe
Viola Pratincola Greene, John E. Ebinger
Claytonia Virginica L., Loy R. Phillippe
Acer Saccharum Marshall, Loy R. Phillippe
Acer Rubrum Wats., Loy R. Phillippe
The Effect Of Indoleacetic Acid And Related Chemicals On Growth Patterns Of Decapitated Bean Plants, Lewis V. Buchanan
The Effect Of Indoleacetic Acid And Related Chemicals On Growth Patterns Of Decapitated Bean Plants, Lewis V. Buchanan
Masters Theses
Bean plants were used to study effects of IAA and related chemicals on plant growth patterns. Plant apical growth tips were removed, eliminating apical donimance. Decapitated plants were treated in experimental groups with IAA, tryptophan, 5-hydroxy indoleacetic acid, serotonin, and melatonin. Two other groups served as controls, one cut, and one uncut.
Growth measurements were taken to determine if the treatments could effectively restore apical dominance. Cut control plants showed a loss of apical dominance, with decreased apical growth, and release of inhibition of axillary growth, when compared to the uncut group.
Tryptophan and meltonin treatments restored little or no …
The Prairie Naturalist Volume 15, No. 1. March 1983
The Prairie Naturalist Volume 15, No. 1. March 1983
The Prairie Naturalist
NUTRIENT POOL SIZE RELATIONS IN THE UNDERSTORY STRATA OF A NORTHERN GREAT PLAINS GALLERY FOREST ▪ K. T. Killingbeck
COMPARISON OF OLD FIELD SUCCESSION ON A TALLGRASS PRAIRIE AND A NEBRASKA SANDHILLS PRAIRIE ▪ M. L. Bomberger, S. L. Shields, A. T. Harrison and K. H. Keeler
MANIPULATION OF FLOOD MEADOW VEGETATION AND OBSERVATIONS ON SMALL MAMMAL POPULATIONS ▪ J. E. Cornely, C. M. Britton and F. A. Sneva
CANVASBACK INTRODUCTION IN WEST-CENTRAL MINNESOTA ▪ H. A. Doty
FORAGING BEHAVIOR AND WATER USE OF HORSES AND CATTLE IN THE WYOMING RED DESERT ▪ L. J. Krysl, G. E. Plumb, M. …
Comparison Of Old Field Succession On A Tallgrass Prairie And A Nebraska Sandhills Prairie, Mary Bomberger Brown, Shelly L. Shields, A. Tyrone Harrsion, Kathleen H. Keeler
Comparison Of Old Field Succession On A Tallgrass Prairie And A Nebraska Sandhills Prairie, Mary Bomberger Brown, Shelly L. Shields, A. Tyrone Harrsion, Kathleen H. Keeler
School of Biological Sciences: Faculty Publications
Long held to be reasonably well understood, the process of ecological succession has recently come under attack. The predictability of successional changes has been doubted (Walker 1970), the mechanism of species replacement has been questioned (Connell and Slatyer 1977), and the reality of steady-state (climax) challenged (Botkin and Sobel 1975, Connell and Slatyer 1977, Connell 1978). In particular, several communities are presently recognized as having "cyclic succession" (Ricklefs 1973), in which the process is continually repeating. Such communities include heaths (Watt 1947), prairie pot-hole marshes (Vander Valk and Davis 1978), spruce-fir forests (Sprugel 1976, Sprugel and Bormann 1981), and intertidal …
Life History Of The Lahontan Cutthroat Trout, Salmo Clarki Henshawi, In Pyramid Lake, Nevada, William F. Sigler, William T. Helm, Paul A. Kucera, Steven Vigg, Gar W. Workman
Life History Of The Lahontan Cutthroat Trout, Salmo Clarki Henshawi, In Pyramid Lake, Nevada, William F. Sigler, William T. Helm, Paul A. Kucera, Steven Vigg, Gar W. Workman
Great Basin Naturalist
The Pyramid Lake Lahontan cutthroat trout (Salmo clarki henshawi) population was sampled on a monthly basis from November 1975 through December 1977. A subsample of 676 trout, stratified by fish size and lake habitat, provided biological data. The entire population is presently derived from hatchery production, stocked at lengths of approximately 75 to 300 mm. Peak annulus formation occurs in March and April, followed by the period of maximum growth. Scale patterns illustrate a variable growing season. Maximum growth in length is in the first three years of life; after that males begin to grow faster than females. …
Systematic And Ecological Wood Anatomy Of Caliifornian Scrophulariaceae. I. Antirrhinum, Castilleja, Galvezia, And Mimulus Sect. Diplacus, David C. Michener
Systematic And Ecological Wood Anatomy Of Caliifornian Scrophulariaceae. I. Antirrhinum, Castilleja, Galvezia, And Mimulus Sect. Diplacus, David C. Michener
Aliso: A Journal of Systematic and Floristic Botany
No abstract provided.
Two New Species Of Cyperus (Subgenus Protocyperus) From Mexico And Central America, Gordon Tucker
Two New Species Of Cyperus (Subgenus Protocyperus) From Mexico And Central America, Gordon Tucker
Faculty Research & Creative Activity
Two new species of Cyperus (Subgenus Protocyperus) from Mexico and Central America, Cyperus nayaritensis, endemic to Nayarit, Mexico, and C. microbrunneus, of Guatemala, Honduras and Costa Rica, are described, illustrated and compared to their nearest relatives.
Lysimachia Quadriflora Sims, Michael Schuck Bebb
Lysimachia Quadriflora Sims, Michael Schuck Bebb
Specimens by Name
No abstract provided.
Verbena Hastata L., John E. Ebinger
Verbena Hastata L., John E. Ebinger
Phenotypic Differences Between Trientalis Borealis Raf. Plants From Adjoining Pine And Oak Communities In Concord, Massachusetts, Jane C. Bennett
Phenotypic Differences Between Trientalis Borealis Raf. Plants From Adjoining Pine And Oak Communities In Concord, Massachusetts, Jane C. Bennett
Theses Digitization Project
No abstract provided.
Curatorial Notes From The Cryptogamic Herbarium At The University Of Central Arkansas, Jewel E. Moore
Curatorial Notes From The Cryptogamic Herbarium At The University Of Central Arkansas, Jewel E. Moore
Journal of the Arkansas Academy of Science
No abstract provided.
Two New Species Of Cyperus (Subgenus Protocyperus) From Mexico And Central America, Gordon C. Tucker
Two New Species Of Cyperus (Subgenus Protocyperus) From Mexico And Central America, Gordon C. Tucker
Faculty Research & Creative Activity
Two new species of Cyperus (Subgenus Protocyperus) from Mexico and Central America, Cyperus nayaritensis, endemic to Nayarit, Mexico, and C. microbrunneus, of Guatemala, Honduras and Costa Rica, are described, illustrated and compared to their nearest relatives.
Comparative Morphology Of Idiomyces And Its Possible Allies Diplomyces, Sandersoniomyces, Symplectromyces, And Tetratomyces (Ascomycetes: Laboulbeniales), Richard K. Benjamin
Comparative Morphology Of Idiomyces And Its Possible Allies Diplomyces, Sandersoniomyces, Symplectromyces, And Tetratomyces (Ascomycetes: Laboulbeniales), Richard K. Benjamin
Aliso: A Journal of Systematic and Floristic Botany
Pertinent stages of development of the receptacle, primary and secondary appendages, and perithecium of Idiomyces peyritschii are described and illustrated and comparison is made between this species and the type species of Diplomyces, Sandersoniomyces, Symplectromyces, and Teratomyces for which early stages of receptacular and appendage development also are described and illustrated. Possible close relationship of these genera with one another is examined in the light not only of morphological similarities and differences but also of host range. It is concluded that Diplomyces, Sandersoniomyces, Symplectromyces, and Teratomyces do indeed constitute a closely allied group of genera. However, the gap between this …
Observations On The Vegetative Anatomy Of Crepidiastrum And Dendrocacalia (Asteraceae), Sherwin Carlquist
Observations On The Vegetative Anatomy Of Crepidiastrum And Dendrocacalia (Asteraceae), Sherwin Carlquist
Aliso: A Journal of Systematic and Floristic Botany
No abstract provided.
Wood Anatomy Of Hydrophyllaceae. I. Eriodictyon, Sherwin Carlquist, Vincent M. Eckhart, David C. Michener
Wood Anatomy Of Hydrophyllaceae. I. Eriodictyon, Sherwin Carlquist, Vincent M. Eckhart, David C. Michener
Aliso: A Journal of Systematic and Floristic Botany
No abstract provided.
A Flora Of The Vernal Pools On The Santa Rosa Plateau, Riverside County, California, Earl W. Lathrop, Robert F. Thorne
A Flora Of The Vernal Pools On The Santa Rosa Plateau, Riverside County, California, Earl W. Lathrop, Robert F. Thorne
Aliso: A Journal of Systematic and Floristic Botany
No abstract provided.
Wood Anatomy Of Calyceraceae And Valerianaceae, With Comments On Aberrant Perforation Plates In Predominantly Herbaceous Groups Of Dicotyledons, Sherwin Carlquist
Wood Anatomy Of Calyceraceae And Valerianaceae, With Comments On Aberrant Perforation Plates In Predominantly Herbaceous Groups Of Dicotyledons, Sherwin Carlquist
Aliso: A Journal of Systematic and Floristic Botany
No abstract provided.
Wood Anatomy Of Calycanthaceae, Sherwin Carlquist
Wood Anatomy Of Calycanthaceae, Sherwin Carlquist
Aliso: A Journal of Systematic and Floristic Botany
No abstract provided.
Neviusia Alabamensis: A Phytogeographic Analysis, Alice A. Long
Neviusia Alabamensis: A Phytogeographic Analysis, Alice A. Long
Journal of the Arkansas Academy of Science
No abstract provided.