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Botany

1980

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Articles 1 - 30 of 201

Full-Text Articles in Life Sciences

Goodyera Pubescens (Willd.) R. Br., B. N. Mcknight Dec 1980

Goodyera Pubescens (Willd.) R. Br., B. N. Mcknight

Specimens by Name

No abstract provided.


An Analysis Of Cadmium And Lead Uptake In Hydroponically Grown Corn Seedlings, Julie Jones Medlin Dec 1980

An Analysis Of Cadmium And Lead Uptake In Hydroponically Grown Corn Seedlings, Julie Jones Medlin

Dissertations

The purpose of this study was to analyze selected growth parameters of hydroponically grown corn seedlings (Zea mays) in relation to the uptake of the heavy metals, lead and cadmium. The corn seedlings were treated with various concentrations of lead and cadmium at different levels of pH, and phosphate and ferric ion concentrations. Root and shoot lengths were measured before and after heavy metal treatment to determine the relative growth in the different treatment solutions. Wet and dry weights were also obtained. The plant material was digested with nitric and perchloric acids in preparation for analysis for heavy metal content …


Acer Saccharinum L., John E. Ebinger Oct 1980

Acer Saccharinum L., John E. Ebinger

Specimens by Name

No abstract provided.


Aplectrum Hyemale (Muhl. Ex Willd.) Torr., John E. Ebinger Oct 1980

Aplectrum Hyemale (Muhl. Ex Willd.) Torr., John E. Ebinger

Specimens by Name

No abstract provided.


Phyla Lanceolata (Michx.) Greene, John E. Ebinger Oct 1980

Phyla Lanceolata (Michx.) Greene, John E. Ebinger

Specimens by Name

No abstract provided.


Spiranthes Cernua (L.) Rich., John Gerard Oct 1980

Spiranthes Cernua (L.) Rich., John Gerard

Specimens by Name

No abstract provided.


Acer Saccharinum L., John E. Ebinger Oct 1980

Acer Saccharinum L., John E. Ebinger

Specimens by Name

No abstract provided.


Acer Saccharinum L., John E. Ebinger Oct 1980

Acer Saccharinum L., John E. Ebinger

Specimens by Name

No abstract provided.


The Prairie Naturalist Volume 12, Numbers 3 And 4. September–December 1980 Oct 1980

The Prairie Naturalist Volume 12, Numbers 3 And 4. September–December 1980

The Prairie Naturalist

THE FLORA AND SANDHILLS PRAIRIE COMMUNITIES OF ARAPAHO PRAIRIE, ARTHUR COUNTY, NEBRASKA ▪ K. H. Keeler, A. T. Harrison and L. S. Vescio

USE OF ULTRASONIC SOUND TO ESTIMATE BODY FAT DEPOTS IN THE MALLARD ▪ G. A. Baldassarre, R. J. Whyte and E. G. Bolen

NORTHERN MOCKINGBIRD BREEDING IN NORTH DAKOTA ▪ D. Child, J. Fontaine, T. Gatz, M. Johnson and J. Oswald

SPRING ARRIVAL OF BIRDS AT WOODWORTH, NORTH DAKOTA ▪ K. F. Higgins, L. M. Kirsch, and J. M. Callow

HYBRIDIZATION AND TAXONOMIC STATUS OF GREATER PRAIRIE CHICKENS AND SHARP-TAILED GROUSE (HYBRIDIZATION IN GROUSE) ▪ D. W. …


Transpiration And Co2 Fixation Of Selected Desert Shrubs As Related To Soil-Water Potential, S. B. Clark, J. Letey Jr., O. R. Lunt, A. Wallace, G. E. Kleinkopf, E. M. Romney Oct 1980

Transpiration And Co2 Fixation Of Selected Desert Shrubs As Related To Soil-Water Potential, S. B. Clark, J. Letey Jr., O. R. Lunt, A. Wallace, G. E. Kleinkopf, E. M. Romney

Great Basin Naturalist Memoirs

In desert plants, transpiration rates decreased before photosynthetic rates when plants were entering a period of water stress. This may have adaptive consequences. A difference of -5 bars in the soil-moisture potential had considerable importance in reducing the rate of transpiration. In Helianthus annuus L. (sunflower) the photosynthetic rate decreased before the transpiration rate in contrast to Great Basin-Mojave Desert plants, and the changes occurred with a -1 bar difference in soil-moisture potential. Morphological changes in three desert plant species [Artemisia tridentata Nutt., Ambrosia dumosa (Gray) Payne, Larrea tridentata (Ses. Moc. ex DC) Cov.] as the soil-moisture potential decreased …


Parent Material Which Produces Saline Outcrops As A Factor In Differential Distribution Of Perennial Plants In The Northern Mojave Desert, A. Wallace, E. M. Romney, R. A. Wood, A. A. El-Ghonemy, S. A. Bamberg Oct 1980

Parent Material Which Produces Saline Outcrops As A Factor In Differential Distribution Of Perennial Plants In The Northern Mojave Desert, A. Wallace, E. M. Romney, R. A. Wood, A. A. El-Ghonemy, S. A. Bamberg

Great Basin Naturalist Memoirs

An area of 0.46 km2 divided into six zones in the northern Mojave Desert transitional with the Great Basin Desert has been studied. Diversity is high among the perennial plant species within the 0.46 km2 area. Common species for the two deserts that are present in the area studied are Atriplex confertifolia (Torr. & Frem.) S.Wats., Ceratoides lanata (Pursh) J. T. Howell, Grayia spinosa (Hook.) Moq., Ephedra nevadensis S. Wats. Some other species present include Lycium andersonii A. Gray, Lycium pallidum Miers, Ambrosia dumosa (A. Gray) Payne., Larrea tridentata (Sesse & Moc. ex DC) Cov., Acamptopappus shockleyi A. …


Mineral Compostition Of Atriplex Hymenelytra Growing In The Northern Mojave Desert, A. Wallace, E. M. Romney, R. B. Hunter, J. E. Kinnear, G. V. Alexander Oct 1980

Mineral Compostition Of Atriplex Hymenelytra Growing In The Northern Mojave Desert, A. Wallace, E. M. Romney, R. B. Hunter, J. E. Kinnear, G. V. Alexander

Great Basin Naturalist Memoirs

Fifty samples of Atriplex hymenelytra (Torr.) S. Wats, were collected from several different locations in southern Nevada and California to test variability in mineral composition. Only Na, V, P. Ca, Mg, Mn, and Sr in the samples appeared to represent a uniform population resulting in normal curves for frequency distribution. Even so, about 40 percent of the variance for these elements was due to location. All elements differed enough with location so that no element really represented a uniform population. The coefficient of variation for most elements was over 40 percent and one was over 100 percent. The proportion of …


End Matter, Vol. 4, Index Oct 1980

End Matter, Vol. 4, Index

Great Basin Naturalist Memoirs

No abstract provided.


Full Issue, Vol. 4 Oct 1980

Full Issue, Vol. 4

Great Basin Naturalist Memoirs

No abstract provided.


End Matter, Vol. 4 Oct 1980

End Matter, Vol. 4

Great Basin Naturalist Memoirs

No abstract provided.


Front Matter, Vol. 4 Oct 1980

Front Matter, Vol. 4

Great Basin Naturalist Memoirs

No abstract provided.


Vitis Palmata Vahl, John E. Ebinger Sep 1980

Vitis Palmata Vahl, John E. Ebinger

Specimens by Name

No abstract provided.


Vitis Aestivalis F.Michx., John E. Ebinger Sep 1980

Vitis Aestivalis F.Michx., John E. Ebinger

Specimens by Name

No abstract provided.


Vitis Vulpina L., John E. Ebinger Sep 1980

Vitis Vulpina L., John E. Ebinger

Specimens by Name

No abstract provided.


Vitis Cinerea Noronha, John E. Ebinger Sep 1980

Vitis Cinerea Noronha, John E. Ebinger

Specimens by Name

No abstract provided.


Fraxinus Pennsylvanica Marsh., John E. E. Ebinger Sep 1980

Fraxinus Pennsylvanica Marsh., John E. E. Ebinger

Specimens by Name

No abstract provided.


Vitis Cinerea Noronha, John E. Ebinger Sep 1980

Vitis Cinerea Noronha, John E. Ebinger

Specimens by Name

No abstract provided.


Spiranthes Cernua (L.) Rich., John E. Ebinger Sep 1980

Spiranthes Cernua (L.) Rich., John E. Ebinger

Specimens by Name

No abstract provided.


Vitis Vulpina L., John E. Ebinger Sep 1980

Vitis Vulpina L., John E. Ebinger

Specimens by Name

No abstract provided.


Verbena Urticifolia L., Kathleen Andrews Sep 1980

Verbena Urticifolia L., Kathleen Andrews

Specimens by Name

No abstract provided.


Cannabis Sativa L., Kathleen Andrews Sep 1980

Cannabis Sativa L., Kathleen Andrews

Specimens by Name

No abstract provided.


Ampelopsis Cordata Michx., John E. Ebinger Sep 1980

Ampelopsis Cordata Michx., John E. Ebinger

Specimens by Name

No abstract provided.


Verbena Rigida Spreng., Oscar Gupton Sep 1980

Verbena Rigida Spreng., Oscar Gupton

Specimens by Name

No abstract provided.


Vitis Cinerea Noronha, John E. Ebinger Sep 1980

Vitis Cinerea Noronha, John E. Ebinger

Specimens by Name

No abstract provided.


Vitis Riparia Michx., John E. Ebinger Sep 1980

Vitis Riparia Michx., John E. Ebinger

Specimens by Name

No abstract provided.