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Effects Of Stress Temperatures Of Germination On Polyamine Titers Of Soybean Seeds , Renan Pineda Mejia Jan 1999

Effects Of Stress Temperatures Of Germination On Polyamine Titers Of Soybean Seeds , Renan Pineda Mejia

Retrospective Theses and Dissertations

High and low stress temperatures during seed germination and seedling development limit total germination and the rate of germination and growth. Changes in polyamine (PA) concentrations in seeds of different species have been associated with germination, growth and environmental stresses such as temperature, drought, oxygen, chilling injury and osmotic conditions. Two studies were conducted to determine the effect of stress temperatures during germination and seedling development on polyamine titers in soybean seeds. Three germination temperatures, 25, 30, and 36 0C were used in the first study to evaluate their influence on changes in polyamine concentrations in soybean seeds germinated at ...


Aluminum Toxicity And Root Dna Synthesis In Wheat, Susan Ellen Ulmer Jan 1979

Aluminum Toxicity And Root Dna Synthesis In Wheat, Susan Ellen Ulmer

Retrospective Theses and Dissertations

No abstract provided.


Plant Characteristics Associated With Barrenness In Maize , Lawrence Lamont Buren Jan 1970

Plant Characteristics Associated With Barrenness In Maize , Lawrence Lamont Buren

Retrospective Theses and Dissertations

No abstract provided.


Germination-Dormancy And Promoter-Inhibitor Relationships In Setaria Lutescens Seeds , Gerald Eugene Kollman Jan 1970

Germination-Dormancy And Promoter-Inhibitor Relationships In Setaria Lutescens Seeds , Gerald Eugene Kollman

Retrospective Theses and Dissertations

No abstract provided.


Plant Growth Response To The Transmissivity Of Glass Reinforced Thermosetting Plastic Panels , Kenneth Luehring Goldsberry Jan 1969

Plant Growth Response To The Transmissivity Of Glass Reinforced Thermosetting Plastic Panels , Kenneth Luehring Goldsberry

Retrospective Theses and Dissertations

No abstract provided.


Floral Induction And Growth Of Apple , Frederick Donald Rauch Jan 1967

Floral Induction And Growth Of Apple , Frederick Donald Rauch

Retrospective Theses and Dissertations

No abstract provided.


Some Effects Of 2,4-D On Growth, Yield, And Metabolism Of Concord Grape , Avean Wayne Cole Jan 1966

Some Effects Of 2,4-D On Growth, Yield, And Metabolism Of Concord Grape , Avean Wayne Cole

Retrospective Theses and Dissertations

No abstract provided.


Patterns Of Surfactant Toxicity To Plant Tissues , Gale Arlon Buchanan Jan 1965

Patterns Of Surfactant Toxicity To Plant Tissues , Gale Arlon Buchanan

Retrospective Theses and Dissertations

No abstract provided.


Toxicity Of Soil Fumigants In Relation To Seed Dormancy , Lowell Palmer Bush Jan 1964

Toxicity Of Soil Fumigants In Relation To Seed Dormancy , Lowell Palmer Bush

Retrospective Theses and Dissertations

No abstract provided.


Photo-Thermoperiodic Responses Of Orchardgrass , Michel Wilfrid Jutras Jan 1964

Photo-Thermoperiodic Responses Of Orchardgrass , Michel Wilfrid Jutras

Retrospective Theses and Dissertations

No abstract provided.


Effect Of Growth Regulators On Reproduction In Soybeans , Howard A. L. Greer Jan 1964

Effect Of Growth Regulators On Reproduction In Soybeans , Howard A. L. Greer

Retrospective Theses and Dissertations

No abstract provided.


Germination Of Seeds And Growth Of Plants As Affected By Differing Moisture Tensions , Richard Melvin Taylor Jan 1964

Germination Of Seeds And Growth Of Plants As Affected By Differing Moisture Tensions , Richard Melvin Taylor

Retrospective Theses and Dissertations

No abstract provided.


Effect Of Photoperiod And Temperature On Flowering Of White Clover (Trifolium Repens) , Durwood William Beatty Jan 1959

Effect Of Photoperiod And Temperature On Flowering Of White Clover (Trifolium Repens) , Durwood William Beatty

Retrospective Theses and Dissertations

No abstract provided.


Effects Of Paraffin Waxes On Growth And Physiology Of Rose Plants , St. Joseph Toy Jan 1958

Effects Of Paraffin Waxes On Growth And Physiology Of Rose Plants , St. Joseph Toy

Retrospective Theses and Dissertations

No abstract provided.


Physiology Of Interstem Dwarfing In Apple, Eric Walter Scholz Jan 1957

Physiology Of Interstem Dwarfing In Apple, Eric Walter Scholz

Retrospective Theses and Dissertations

No abstract provided.


Growth Of The Potato Tuber , Philip Heath Plaisted Jan 1952

Growth Of The Potato Tuber , Philip Heath Plaisted

Retrospective Theses and Dissertations

No abstract provided.


Physiology Of Dwarfing In Apple , Malcolm Niven Dana Jan 1952

Physiology Of Dwarfing In Apple , Malcolm Niven Dana

Retrospective Theses and Dissertations

No abstract provided.


Translocation In Soybean Plants , Leo Preston Vernon Jan 1951

Translocation In Soybean Plants , Leo Preston Vernon

Retrospective Theses and Dissertations

No abstract provided.


Responses Of Barley And Oats To 2, 4-Dichlorophenoxyacetic Acid , Lyle August Derscheid Jan 1951

Responses Of Barley And Oats To 2, 4-Dichlorophenoxyacetic Acid , Lyle August Derscheid

Retrospective Theses and Dissertations

No abstract provided.


Interactions In Grass-Legume Plantings , Clark Harvey Jan 1950

Interactions In Grass-Legume Plantings , Clark Harvey

Retrospective Theses and Dissertations

No abstract provided.


Chlorosis Of Azaleas , James Aloysius Foret Jan 1950

Chlorosis Of Azaleas , James Aloysius Foret

Retrospective Theses and Dissertations

No abstract provided.


Estimation Of Starch In Plant Tissue , Robert Delafield Powell Jan 1950

Estimation Of Starch In Plant Tissue , Robert Delafield Powell

Retrospective Theses and Dissertations

The various factors affecting the estimation of starch by determining the glucose formed by acid hydrolysis following enzymatic hydrolysis have been studied. The effect of grinding of the plant material was shown to be important. Insufficient grinding leads to low values in starch, and grinding in the ball mill caused a breakdown of starch, and probably of non-starch interfering substances, to more soluble material;Gelatinization is necessary to extract starch from plant tissue. Probably vigorous conditions are not needed, but autoclaving for one hour at 15 pounds had no detrimental effect on starch recovery;Salivary diastase is preferred to taka-diastase ...


Clearing And Deleading Of Plant Extracts For Reducing Sugar Determination , Egil Frode Lind Jan 1949

Clearing And Deleading Of Plant Extracts For Reducing Sugar Determination , Egil Frode Lind

Retrospective Theses and Dissertations

No abstract provided.


Carotenoid Content Of Tomato Fruits As Influenced By Environment And Variety , Ervin Loren Denisen Jan 1949

Carotenoid Content Of Tomato Fruits As Influenced By Environment And Variety , Ervin Loren Denisen

Retrospective Theses and Dissertations

No abstract provided.


Diffusion Through Multiperforate Septa , Jacob Verduin Jan 1947

Diffusion Through Multiperforate Septa , Jacob Verduin

Retrospective Theses and Dissertations

Diffusion through multiperforate septa was investigated, using two series of septa and three types of diffusion with the object of attempting to formulate an interference equation;A simple derivation of small-pore diffusion is presented which indicates that spheroidal uniform pressure surfaces yield diffusion rates showing proportionality with pore diameter;The experiments and empirical interference equation of Huber were analyzed and found to be unreliable because he failed to measure interference as an isolated variable;A theoretical interference equation is derived which shows that interference between pores of constant size, uniformly spaced in a septum, should be inversely proportional to the ...


Physiological Action Of 2,4-Dichlorophenoxyacetic Acid On Dandelion (Taraxacum Officinale) , Lowell W. Rasmussen Jan 1947

Physiological Action Of 2,4-Dichlorophenoxyacetic Acid On Dandelion (Taraxacum Officinale) , Lowell W. Rasmussen

Retrospective Theses and Dissertations

The effect of 2,4-dichlorophenoxyacetic acid on the composition and activity of dandelion roots was studied, using three concentrations (120, 480, and 1920 ppm.) of 2,4-D in aqueous sprays. Root samples were taken before treatment and at five day intervals for 25 days after treatment. Determinations were made of the content of reducing sugar, sucrose, dextrin, levulin, alcohol soluble nitrogen, and protein nitrogen in the roots. Measurements of the rate of respiration were also made;The reducing sugar content was increased rapidly by the treatments, but later decreased towards the level of the control. It was found that the ...


Some Derivatives Of [Gamma]-Valerolactone, Robert V. Christian Jr. Jan 1946

Some Derivatives Of [Gamma]-Valerolactone, Robert V. Christian Jr.

Retrospective Theses and Dissertations

No abstract provided.


Effects Of Carbon Dioxide And Oxygen On Absorption By Roots , Hsien Tsiu Chang Jan 1943

Effects Of Carbon Dioxide And Oxygen On Absorption By Roots , Hsien Tsiu Chang

Retrospective Theses and Dissertations

The effect of carbon dioxide on the absorption activities of roots of wheat, maize and rice plants was studied. The following results were obtained: (1) Bubbling carbon dioxide through the solutions reduced significantly the absorption of water, and of all nutrient elements tested, by all three experimental plants. (2) Bubbling air through the solution, in general, increased the absorption of water and nutrient elements over the control plants, but the increment was much less prominent and consistent than the reduction moused by the carbon dioxide. (3) In a single experiment bubbling commercial nitrogen gas through the solutions did not affect ...


Nutrition And Growth Of Forest Tree Seedlings , Andrew L. Mccomb Jan 1941

Nutrition And Growth Of Forest Tree Seedlings , Andrew L. Mccomb

Retrospective Theses and Dissertations

No abstract provided.


Growth Correlations In Maize Seedlings, Frederick Douglass Inge Jan 1940

Growth Correlations In Maize Seedlings, Frederick Douglass Inge

Retrospective Theses and Dissertations

No abstract provided.