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Plant Sciences

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Articles 1141 - 1168 of 1168

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Corn Response To Sulfur On Illinois Soils, R. G. Hoeft, J. E. Sawyer, R. M. Vanden Heuvel, M. A. Schmitt, G. S. Brinkman Dec 1984

Corn Response To Sulfur On Illinois Soils, R. G. Hoeft, J. E. Sawyer, R. M. Vanden Heuvel, M. A. Schmitt, G. S. Brinkman

John E. Sawyer


Field studies were conducted over a three-year period at a total of 82 site-years to evaluate the sulfur (S) status of representative Illinois soils. In addition, greenhouse studies were conducted using soils from two of the three years of field experiments. The sites selected were either low in organic matter, sandy in texture and/or in areas 
where apparent S deficiency had been reported. At each location, gypsum was applied at a rate to supply 50 lb S/ac prior to the final tillage operation before planting. Whole plant samples were collected at the sixth-leaf stage of growth and ear leaf samples were …

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Influence Of Hormonal Chemicals And Genotypes On Fruit Growth Of Lycopersicon Esculentum, Henry R. Owen May 1984

Influence Of Hormonal Chemicals And Genotypes On Fruit Growth Of Lycopersicon Esculentum, Henry R. Owen

Henry R. Owen

The effects of hormonal chemicals and different genotypes on fruit growth of greenhouse-grown tomatoes ( Lycopersicon esculentum Mill.) were examined. Continuous root application of lOnM N6 -benzylaminopurine in Hoagland's nutrient solution to tomato seedlings of 'Fireball' and 'Red Cherry' significantly delayed anthesis of 'Fireball', but not 'Red Cherry'. Ovary diameter at anthesis, final fruit diameter, and fruit weight of both cultivars were unaffected. Irrespective of treatments, a significant positive correlation was obtained between ovary diameter at anthesis and final fruit diameter. A single foliar application of 0.25mM or 0.37mM 6-naphthoxyaceticacid (betaNOA) at the appearance of the first inflorescence of 'Fireball' …

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Taxonomic Notes On Two Common Neotropical Species Of Cyperus (Cyperaceae), Gordon C. Tucker Jan 1984

Taxonomic Notes On Two Common Neotropical Species Of Cyperus (Cyperaceae), Gordon C. Tucker

Gordon C. Tucker

No abstract provided.

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Tva Fluid Fertilizers Chapter Two - Agronomic Aspects, Eugene C. Sample, Gary W. Akin, Robert Mikkelsen Jan 1984

Tva Fluid Fertilizers Chapter Two - Agronomic Aspects, Eugene C. Sample, Gary W. Akin, Robert Mikkelsen

Robert Mikkelsen

No abstract provided.

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Tva Fluid Fertilizers Chapter One- History, Growth, And Status, Robert Mikkelsen Jan 1984

Tva Fluid Fertilizers Chapter One- History, Growth, And Status, Robert Mikkelsen

Robert Mikkelsen

No abstract provided.

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Tva Fluid Fertilizers Chapter Four - Chemical Properties, A W. Frazier Jan 1984

Tva Fluid Fertilizers Chapter Four - Chemical Properties, A W. Frazier

Robert Mikkelsen

No abstract provided.

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Tva Fluid Fertilizers Chapter Five - Production, Handling, And Use Of Anydrous Ammonia And Status, G. M. Blouin, H. L. Kimborough, W. J. Sharratt Jan 1984

Tva Fluid Fertilizers Chapter Five - Production, Handling, And Use Of Anydrous Ammonia And Status, G. M. Blouin, H. L. Kimborough, W. J. Sharratt

Robert Mikkelsen

No abstract provided.

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Tva Fluid Fertilizers Chapter Seven - Suspension Fertilizers - Production And Use, J Getsinger, Frank Achorn, George Hoffmeister, Robert Mikkelsen Dec 1983

Tva Fluid Fertilizers Chapter Seven - Suspension Fertilizers - Production And Use, J Getsinger, Frank Achorn, George Hoffmeister, Robert Mikkelsen

Robert Mikkelsen

No abstract provided.

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Chapter Six - Liquid (Solution) Fertilizers, Frank P. Achorn, Lawrence C. Faulkner, Robert Mikkelsen Dec 1983

Chapter Six - Liquid (Solution) Fertilizers, Frank P. Achorn, Lawrence C. Faulkner, Robert Mikkelsen

Robert Mikkelsen

No abstract provided.

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Tva Fluid Fertilizers Chapter Three - Physical Properties Evaluation Aspects, T M. Jones, H L. Balay, Robert Mikkelsen Dec 1983

Tva Fluid Fertilizers Chapter Three - Physical Properties Evaluation Aspects, T M. Jones, H L. Balay, Robert Mikkelsen

Robert Mikkelsen

No abstract provided.

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Distribution Of Limonin During The Growth And Development Of Leaves And Branches Of Citrus Paradisi, Cecilia Mcintosh, Richard L. Mansell Feb 1983

Distribution Of Limonin During The Growth And Development Of Leaves And Branches Of Citrus Paradisi, Cecilia Mcintosh, Richard L. Mansell

Cecilia A. McIntosh

This report analyzes the distribution of limonin within a leaf, within a branch, and between branches of an individual Citrus paradisi tree.  Limonin was evenly distributed within single leaves and the concentration in the leaves on a given branch was constant, regardless of branch age.  The total amount of limonin per leaf varied with leaf size.  Not all branches within the tree exhibited the same potential for limonin metabolism as reflected in their limonin and limonoate A-ring monolactone levels.  The limonin content showed increasing levels as the leaves bud and grow and then decreasing levels as they mature and turn …

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Two New Species Of Cyperus (Subgenus Protocyperus) From Mexico And Central America, Gordon C. Tucker Jan 1983

Two New Species Of Cyperus (Subgenus Protocyperus) From Mexico And Central America, Gordon C. Tucker

Gordon C. Tucker

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.

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Genetic Divergence Within The Genus Liriodendron (Magnoliaceae), Jonathan F. Wendel, Clifford R. Parks, Norton G. Miller, Karen M. Mcdougal Jan 1983

Genetic Divergence Within The Genus Liriodendron (Magnoliaceae), Jonathan F. Wendel, Clifford R. Parks, Norton G. Miller, Karen M. Mcdougal

Jonathan F. Wendel

The genus Liriodendron L. consists of a southeast Asian-eastern North American disjunct species pair, but the genus had a much wider distribution in the Northern Hemisphere during the late Cretaceous and the Tertiary. Although generally similar in morphology, the two extant species are measurably different. In 1973 and 1977 they were hybridized, and interspecific heterosis was observed in the progeny. After seven years, the interspecific hybrids synthesized in 1973 had a significantly greater biomass than intraspecific hybrids of L. tulipifera. The growth rate of interspecific and intraspecific F2 seedlings was approximately equal. A preliminary survey of flavonoid extracts in L. …

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An Analysis Of The Limonin And Naringin Content Of Grapefruit Juice Samples Collected From Florida State Test Houses, Richard L. Mansell, Cecilia Mcintosh, Susan E. Vest Dec 1982

An Analysis Of The Limonin And Naringin Content Of Grapefruit Juice Samples Collected From Florida State Test Houses, Richard L. Mansell, Cecilia Mcintosh, Susan E. Vest

Cecilia A. McIntosh

An analysis of the limonin and naringin content of 6685 grapefruit juice samples (representing approximately 6% of all grapefruit harvested) collected from three Florida State Test Houses showed that there were statistically significant differences between the Test Houses.  There also was a statistically significant difference in the concentration of these compounds in the juice from the different cultivars of fruit sampled.  Average limonin and naringin concentrations in the juice remained fairly constant through the beginning of the season until a freeze occurred in early 1981.  Juice obtained from fruit harvested after this freeze contained decreasing amounts of limonin and increasing …

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Distribution Of Limonin In The Fruit Tissues Of Nine Grapefruit Cultivars, Cecilia Mcintosh, Richard L. Mansell, Russell L. Rouseff Jun 1982

Distribution Of Limonin In The Fruit Tissues Of Nine Grapefruit Cultivars, Cecilia Mcintosh, Richard L. Mansell, Russell L. Rouseff

Cecilia A. McIntosh

This report presents the results of a study conducted to determine the distribution of limonin within the fruit tissues of nine grapefruit cultivars.  It was found that the highest limonin levels within the fruit tissues were found in the cotyledon, followed by inner seed coat, outer seed coat, central pith, segment membrane, albedo and flavedo, and juice vesicles, in decreasing amounds.  The concentration of limonin in the tissues of the individual cultivars is also presented, and the variation in limonin content within a single tissue and within single fruit is discussed.  The limonin content of the fruit of the nine …

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Attendance Control Techniques: Union Vs. Non-Union Differences In The Southeast United States, S E. Markham, Dow Scott Dec 1981

Attendance Control Techniques: Union Vs. Non-Union Differences In The Southeast United States, S E. Markham, Dow Scott

Dow Scott

This research examines both the rate of absenteeism and the attendance control methods found in a sample of 423 union and non-union organizations located in the Southeast United States. These data indicate that absenteeism rates for union and non-union organizations are not significantly different. Methods of controlling absenteeism are reported for both union and non-union facilities. Implications for the control of absenteeism are discussed.

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Modeling The Kinetics Of Heat Inactivation Of Trypsin Inhibitors During Steam-Infusion Cooking Of Soymilk, Lawrence A. Johnson, W. J. Hoover, C. W. Deyoe, L. E. Erickson, W. H. Johnson, J. R. Schwenke Mar 1980

Modeling The Kinetics Of Heat Inactivation Of Trypsin Inhibitors During Steam-Infusion Cooking Of Soymilk, Lawrence A. Johnson, W. J. Hoover, C. W. Deyoe, L. E. Erickson, W. H. Johnson, J. R. Schwenke

Lawrence A. Johnson

Theeffect of heat on trypsin inhibitor (TI) activity during steam-infusion cooking of soymilk was studied. At 154°C only 40 s process time reduced TI to the same level as conventional cooking at 99°C for 60 min. Between 99 and 154°C the kinetics of TI inactivation followed behavior exemplified by the summation of two first-order reactions. Spline fitting functions effectively modeled the data with r2 ranging from 0.984 to 0.999. The heat-labile reaction was attributed to Kunitz inhibitor and the heat-stable reaction, to Bowman-Birk inhibitor. The former accounted for approximately 85 percent of the iriginal TI activity. Arrhenius equation kinetic constants …

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Removal Of Raw Peanut Flavor And Odor In Peanut Flour Processed By Direct Solvent Extraction1, Lawrence A. Johnson, J. T. Farnsworth, R. J. Garland, E. W. Lusas Jan 1979

Removal Of Raw Peanut Flavor And Odor In Peanut Flour Processed By Direct Solvent Extraction1, Lawrence A. Johnson, J. T. Farnsworth, R. J. Garland, E. W. Lusas

Lawrence A. Johnson

Peanut slices can be directly extracted with hexane yielding more soluble protein and better color than pre-press solvent extraction; however, flavor and odor are characterized as raw and “green beany”. The utilization of secondary extraction with hexane: ethanol azeotrope, hexane: methanol azeotrope and absolute ethanol subsequent to hexane extraction significantly improved flavor and odor characteristics of peanut flour. Hexane: propanol azeotrope did not significantly improve sensory evaluations. Hexane: ethanol azeotrope did not reduce soluble protein, yielding an NSI value of 95%. Hexane: methanol azeotrope and absolute ethanol slightly reduced NSI to 88% and 92% respectively. Color of peanut flour was …

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Hidrometalurjide Yeni, Fathi Habashi Jan 1979

Hidrometalurjide Yeni, Fathi Habashi

Fathi Habashi

Turkish translation of F. Habashi, “Recent Advances in Hydrometallurgy,” Proceedings International Mineral Processing Congress, Warsaw, 1979, edited by J. Laskowski, published by Elsevier, pp. 902–935

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Greenhouse Techniques For Soil-Plant-Fertilizer Research, S E. Allen, G L. Terman, L B. Clements, Robert Mikkelsen May 1976

Greenhouse Techniques For Soil-Plant-Fertilizer Research, S E. Allen, G L. Terman, L B. Clements, Robert Mikkelsen

Robert Mikkelsen

PART 2: Special problems and procedures Principles of nutrient uptake in pot experiments

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Greenhouse Techniques For Soil - Plant - Fertilizer Research, S E. Allen, G L. Terman, L B. Clements, Robert Mikkelsen May 1976

Greenhouse Techniques For Soil - Plant - Fertilizer Research, S E. Allen, G L. Terman, L B. Clements, Robert Mikkelsen

Robert Mikkelsen

PART 3: Design & sample calculaitons for specific types of experiments Typical greenhouse report References

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Greenhouse Techniques For Soil-Plant-Fertilizer Research, S E. Allen, G L. Terman, L B. Clements, Robert Mikkelsen May 1976

Greenhouse Techniques For Soil-Plant-Fertilizer Research, S E. Allen, G L. Terman, L B. Clements, Robert Mikkelsen

Robert Mikkelsen

PART 1: Introduction Greenhouse facilities General techniques

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Progress In Extractive Metallurgy, Volume 1. Review By G.N. Dobrokhotov, Fathi Habashi Jan 1975

Progress In Extractive Metallurgy, Volume 1. Review By G.N. Dobrokhotov, Fathi Habashi

Fathi Habashi

Review of the first volume of Progress in Extractive Metallurgy edited by Fathi Habashi and published by Gordon & Breach in New York in 1975. The review was written by Professor Dobrokhotov at the Leningrad Mining Institute.

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Sulphate Of Potash For Quality, Kali Export Gesellschaft Dec 1974

Sulphate Of Potash For Quality, Kali Export Gesellschaft

Robert Mikkelsen

No abstract provided.

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Sulphate Of Potash For Quality Dec 1974

Sulphate Of Potash For Quality

Benjamin L. Harwood

No abstract provided.

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Sulphate Of Potash For Quality Dec 1974

Sulphate Of Potash For Quality

Robert Mikkelsen

No abstract provided.

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Removal Of Phosphorus From Static Sewage Effluent By Waterhyacinth, W Harold Ornes Dec 1974

Removal Of Phosphorus From Static Sewage Effluent By Waterhyacinth, W Harold Ornes

W. Harold Ornes

Waterhyacinth [Eichhornia crassipes (Mart.) Solms] was grown in static sewage effluent during May to July 1974 in outdoor concrete containers with a capacity of 760 liters and a surface area of 1.66 m². The plants were removed weekly from one-half of the surface area of the containers during 5-wk growth periods. Tissue phosphorus (P) and nitrogen (N), plant productivity, and some parameters of water quality were measured. A maximum uptake of 5,500 µg of P/g dry weight of plant material occurred when the level of orthophosphate phosphorus (available P) in the effluent was 1.1 µg/ml. Phosphorus in the effluent was …

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Laotian Agricultural Statistics, Joel Halpern Apr 1961

Laotian Agricultural Statistics, Joel Halpern

Joel M. Halpern

No abstract provided.

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