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Articles 1351 - 1380 of 1393
Full-Text Articles in Agriculture
Relationship Of Vigour Tests And Seed Lots To Cotton Seedling Establishment, U. R. Bishnoi, James C. Delouche
Relationship Of Vigour Tests And Seed Lots To Cotton Seedling Establishment, U. R. Bishnoi, James C. Delouche
All Articles
No abstract provided.
Blueberry Progress Reports, Amr A. Ismail, John M. Smagula, Stewart Goltz, Paul Hepler, Alan Langille, G R. Benoit, W J. Grant, M G. Zuck, D C. Mcgee, Steven B. Johnson, Simon S. Leach, Howard Y. Forsythe Jr, Gordon E. Ramsdell, Cynthia L. Kahrmann
Blueberry Progress Reports, Amr A. Ismail, John M. Smagula, Stewart Goltz, Paul Hepler, Alan Langille, G R. Benoit, W J. Grant, M G. Zuck, D C. Mcgee, Steven B. Johnson, Simon S. Leach, Howard Y. Forsythe Jr, Gordon E. Ramsdell, Cynthia L. Kahrmann
Wild Blueberry Research Reports
The 1978 edition of the Blueberry Progress Reports was prepared for the Maine Blueberry Commission and the University of Maine Blueberry Advisory Committee by researchers with the Maine Life Sciences and Agriculture Experiment Station and Maine Cooperative Extension Service at the University of Maine, Orono. Projects in this report include:
1. Weed Control in Blueberry Fields
2. Pruning of Blueberries
3. Integrated Management of Blueberry Fields
4. Factors Regulating Rhizome Initiation and Development in the Lowbush Blueberry
5. Effect of Plant-Water Stress on "Lowbush" Blueberry Growth Yield and Quality
6. Blossom Blight of Blueberries
7. Botrytis Blossom Blight of Lowbush …
Effects Of Row Width And Seeding Rate On Yield And Other Agronomic Characteristics Of Three Soybean Cultivars, Russell Kithcart
Effects Of Row Width And Seeding Rate On Yield And Other Agronomic Characteristics Of Three Soybean Cultivars, Russell Kithcart
Masters Theses & Specialist Projects
Soybeans have traditionally been grown in rows wide enough to allow mechanical cultivation and to increase lodging resistance. Improved cultivars and herbicides have permitted farmers to obtain yield advantages from narrower rows. The growth response of soybeans to variations in row width and seeding rates depends upon the cultivar and geographic location.
“Williams,” “Mitchell,” and “Essex” cultivars were planted at row widths of 18, 36, 54, and 72cm. at seeding rates of 33, 67, 100 and 134 kg/ha in multi-row plots. Data were collected from each plot for seed yield, lodging, plant height, height of lowest pod, seed and population …
Research For Connecticut By The Storrs Agricultural Experiment Station
Research For Connecticut By The Storrs Agricultural Experiment Station
Storrs Agricultural Experiment Station
No abstract provided.
Evaluation Of Herbicides For Suppression Of Rhizome Growth From Johnsongrass (Sorghum Halepense L.) In Corn And Soybeans, John Oakes
Masters Theses & Specialist Projects
Johnsongrass (Sorghum halepense L.) presents a serious problem in the production of corn and soybeans in Kentucky.
Various rates of the thiocarbamates, dinitroanilines, carbamates, amides, ureas, and triazines were used in association with the crops corn (Zea mays L.) and soybeans (Glycine max L.) to determine the degree of suppression on rhizomatous johnsongrass infesting the previously named crops.
Suppression was determined by selecting areas within each treated plot, counting the number of culms, then harvesting johnsongrass rhizomes. Dry weights of rhizomes were then determined as a measure of rhizome suppression.
Results show that of …
Blueberry Research Progress Report, Howard Y. Forsythe Jr, Amr A. Ismail, Said A. Goueli, Paul R. Hepler, Arlen D. Draper, John M. Smagula, Stewart Goltz, Alan Langille, Thomas E. Christensen, Homer B. Metzger, Ruth H. True
Blueberry Research Progress Report, Howard Y. Forsythe Jr, Amr A. Ismail, Said A. Goueli, Paul R. Hepler, Arlen D. Draper, John M. Smagula, Stewart Goltz, Alan Langille, Thomas E. Christensen, Homer B. Metzger, Ruth H. True
Wild Blueberry Research Reports
The 1975 edition of the Blueberry Research Progress Report was prepared for the Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:
1. Insects Affecting the Blueberry
2. Weed Control in Blueberry Fields
3. Pruning of Blueberries
4. Integrated Management of Blueberry Fields
5. Selective Thinning of Black Barrenberries in Lowbush Blueberry Fields with Ethrel
6. The Physiology and Biochemistry of the Development of the Lowbush Blueberry Fruit
7. The Development of Blueberry Varieties Adapted to Maine
8. Factors Regulating Rhizome Initiation and Development in the Lowbush Blueberry
9. Mechanical Blueberry Harvesting
10. …
Lysimetric Calibration Of The Bowen Ratio-Energy Balance Method For Evapotranspiration Estimation In The Central Great Plains, Blaine L. Blad, Norman J. Rosenberg
Lysimetric Calibration Of The Bowen Ratio-Energy Balance Method For Evapotranspiration Estimation In The Central Great Plains, Blaine L. Blad, Norman J. Rosenberg
Department of Agronomy and Horticulture: Faculty Publications
Most reports show good agreement between evapotranspiration (ET) rates estimated by Bowen Ratio-Energy Balance (BREB) method and rates measured with lysimeters, although underestimation by the BREB model has occasionally been reported. This study was conducted to evaluate the performance of the BREB technique in the climatic conditions characteristic of the central Great Plains, a region where a significant proportion of the energy consumed by evapotranspiration is supplied from advected sensible heat.
Agreement between the BREB method and lysimetric measurements of ET is good during non-advective periods but during advective periods the BREB model underestimates ET by about 20%. Data collected …
Deterioration Of Seed Corn During Storage, Nirmal S. Gill, James C. Delouche
Deterioration Of Seed Corn During Storage, Nirmal S. Gill, James C. Delouche
All Articles
No abstract provided.
Yield And Chemical Composition Of Barley Silage, John Henry James
Yield And Chemical Composition Of Barley Silage, John Henry James
Masters Theses & Specialist Projects
The potential of Barsoy barley (Hordeum vulgare L.) as a silage crop was studied at Western Kentucky University in 1970-1971. The field study was conducted at two locations. Barley was seeded at the rate of 107.5 kg/ha in a Pembroke silt loam soil at both locations in September, 1970. At the time of planting the soil was fertilized with 7.5, 32.4 and 33.1 kg/ha of nitrogen, phosphorus, and potassium, respectively. Plants at location 2 received an additional 23.7 kg/ha of nitrogen in February, 1971.
Whole barley plants were harvested at weekly intervals from March 11 through June 3 at …
Yield, Crude Protein & Crude Fiber Content Of Three Forage Sorghum Cultivars During The Growing Season & After Frost, William Davis
Yield, Crude Protein & Crude Fiber Content Of Three Forage Sorghum Cultivars During The Growing Season & After Frost, William Davis
Masters Theses & Specialist Projects
Yield, crude protein, and crude fiber of 'Piper' sudangrass (Sorghum bicolor var. sudanese (L.) Moench), and 'Sweet Sioux' and 'FFR66 1 sorghum (Sorghum bicolor(L.) Moench) X sudangrass hybrids were studied during the growing season and after frost.
Three treatments were studied, namely--4-s (four summer harvests and short or about 0.6 m at the time of frost), 3-M (three summer harvests and medium or 1.5 in at the time of frost), 2-T (two summer harvests and tall or 2.0 in at the time of frost). Dry matter yield, crude protein, and crude fiber were calculated.
The three cultivars …
Penstemon In Your Garden [Revised], Roger D. Uhlinger, Glenn Viehmeyer
Penstemon In Your Garden [Revised], Roger D. Uhlinger, Glenn Viehmeyer
Department of Agronomy and Horticulture: Faculty Publications
The Genus Penstemon
Penstemon Breeding: Emasculation • Pollen Collection • Pollination • Keeping Records
Selection of ParentaI MateriaIs
Species Crosses
Breeding Behavior
Sources of Breeding Material
Penstemon Propagation: Propagation by Seed • Propagation by Division and Layering • Propagation by Cuttings • Tip Cuttings • Single Node and Single Eye Cuttings • Striking the Cuttings • Rooting Mediums • Setting the Cuttings
Penstemon Diseases : Leaf Diseases • Soil Borne Diseases • Virus Diseases
Insects that Affect Penstemon: Aphids • Cutworms • False Plant Bug • Flea Beetle • Grasshoppers • Leaf hoppers • Slugs • Red Spider Mites • …
Rollins Adams Emerson (1873-1947) Horticulturist Pioneer Plant Geneticist Administrator Inspiring Student Adviser, Rosalind Morris
Rollins Adams Emerson (1873-1947) Horticulturist Pioneer Plant Geneticist Administrator Inspiring Student Adviser, Rosalind Morris
Department of Agronomy and Horticulture: Faculty Publications
The vigorous and highly productive life of Professor R. A. Emerson spanned 74 years and 7 months. His birth and death took place In New York State, but Nebraska nurtured his early development and schooling. He spent 15 years of his professional career at the University of Nebraska, followed by 33 years at Cornell University.
Rollins Adams Emerson, son of Charles David and Mary C. Adams Emerson (a direct descendant of Henry Adams), was born May 5, 1873 at Pillar Point, New York State on the eastern shore of Lake Ontario. In 1880 his family moved to Nebraska and settled …
Ua3/3/1 Comments On Activities At The Western Kentucky State College Farm, Billy Adams
Ua3/3/1 Comments On Activities At The Western Kentucky State College Farm, Billy Adams
WKU Archives Records
Report regarding use of WKU Farm in instruction with list of recommendations for improving the farm and its operation.
Ua3/3/1 Comments On Activities At The Western Kentucky State College Farm, Randolph Richards
Ua3/3/1 Comments On Activities At The Western Kentucky State College Farm, Randolph Richards
WKU Archives Records
WKU Farm report emphasizing ongoing research projects, crops and livestock yields and physical facilities.
Effect Of Gravity Separation On Cottonseed, Norman Justus, R. H. Loe, J.B. Dick, M. N. Christiansen
Effect Of Gravity Separation On Cottonseed, Norman Justus, R. H. Loe, J.B. Dick, M. N. Christiansen
All Articles
No abstract provided.
Pensternon In Your Garden, Glenn Viehmeyer
Pensternon In Your Garden, Glenn Viehmeyer
Department of Agronomy and Horticulture: Faculty Publications
A new race of hardy perennials is beginning to appear in American gardens. These are the penstemons, a genus of plants closely related to the familiar snapdragon, which may become important ornamentals as they become better known to gardeners. The purpose of this bulletin is to show the possibility of the genus as an ornamental and to suggest species and species hybrids of possible value to Great Plains gardeners; to provide information about propagation and culture; and to encourage gardeners to engage in penstemon breeding as an avocation.
Microorganisms And Soil Structure, T. M. Mccalla, F. A. Haskins
Microorganisms And Soil Structure, T. M. Mccalla, F. A. Haskins
Department of Agronomy and Horticulture: Faculty Publications
SUMMARY
Good stable soil structure is valuable for promoting the growth of plants and micro-organisms by permitting enhanced aeration and water penetration and by decreasing erosion under some conditions.
Micro-organisms influence water percolation through the soil. They may plug up soil pores with byproducts of growth and reduce water percolation. On the other hand, if a soil containing a large amount of microbial products is stirred and allowed to dry, then the percolation may be high.
Micro-organisms are involved in stabilizing soil structure by their products of decomposition and their cellular binding material, such as mycelia. Microorganisms differ greatly in …
Turf Clippings Conference Proceedings, The Stockbridge School Turf Management Club
Turf Clippings Conference Proceedings, The Stockbridge School Turf Management Club
Turf Clippings
- Recent Developments Affecting Golf Course Design (page 1)
- From the Editor (3)
- Five Year Results (3)
- Turf Management Club News (4)
- Quotes from 1960 Seniors (5)
- Poa annua - - Friend or Foe (6)
- The Horticulture Show (7)
- Cartoons (8)
- Message from the Winter School President of 1960 (10)
- The Most Outstanding Turf Senior for 1959 (10)
- The Value of the Proper Use of Lime (11)
- Summer Placement (12)
- A Greenhouse on the Golf Course (13)
- More Opportunities in the Future for the Aggressive Superintendent at Country Clubs (14)
- Soil, Sawdust and Turfgrass (15)
- Picture - Senior Stockbridge Turf majors …
Microorganisms And Soil Structure, T. M. Mccalla
Microorganisms And Soil Structure, T. M. Mccalla
Department of Agronomy and Horticulture: Faculty Publications
SUMMARY
Laboratory tests were made to determine the effectiveness of different compounds and microbial groups in increasing the stability of Peorian loess lumps against the action of falling water drops. The influence of these on percolation tests in the laboratory was also determined.
Many organic substances-dextrose, sucrose, starch, peptone, cullulose, and gum arabic-did not themselves contribute directly to soil-structure stability, though these substances do furnish energy material for soil microorganisms, which can convert them readily into either microbial tissue or decomposition products that increase soil-structure stability. Lignin, proteins, oils, fats, waxes, resin, and paraffin increased the stability of lumps of …
Ec1506 Corn Rootworm Control In Nebraska, Ephriam Hixson, Martin H. Muma, Roscoe E. Hill
Ec1506 Corn Rootworm Control In Nebraska, Ephriam Hixson, Martin H. Muma, Roscoe E. Hill
University of Nebraska-Lincoln Extension: Historical Materials
Extension circular 1506 discusses corn rootworm control in Nebraska.
Ec1551 Insect Control In The Production Of Alfalfa Seed, Ephriam Hixson
Ec1551 Insect Control In The Production Of Alfalfa Seed, Ephriam Hixson
University of Nebraska-Lincoln Extension: Historical Materials
Extension circular 1551 discusses insect control in the production of alfalfa seed.
The Genetics Congress, R. A. Emerson
The Genetics Congress, R. A. Emerson
Department of Agronomy and Horticulture: Faculty Publications
Mice and men reported from
Edinburgh after the Congress
(JOURNAL OF HEREDITY for
September 1939) but since then there
has been silence, as far as getting into the
record any details of the Congress. On
account of the disruption to trans-Atlantic
travel caused by the declaration of
war between England and Germany,
September 3, the American delegation to
the Congress was considerably delayed
in getting back. Only two failed ultimately
to return, Dr. and Mrs. F. W.
Tinney of the Division of Farm Crops
of the University of Wisconsin. They
were among about a dozen members of
the Congress who …
A Zygotic Lethal In Chromosome 1 Of Maize And Its Linkage With Neighboring Genes, R. A. Emerson
A Zygotic Lethal In Chromosome 1 Of Maize And Its Linkage With Neighboring Genes, R. A. Emerson
Department of Agronomy and Horticulture: Faculty Publications
A Bolivian maize
maize with mosaic red pericarp and cob, here designated by the symbol M-M, crossed with a local inbred strain of maize having white pericarp and cob, W-W, produced in F1 21 M-M and 28
W-W plants, not far from the I : I relation expected on the assumption that
the M-M parent was heterozygous for pericarp and cob color, M-M/W-W.
In F2 and segregating F3 cultures, however, there were 130 M-M and 64
W-W plants obviously a 2 : I instead of the 3 : I relation expected. Later cultures
increased these records to …
Relation Of The Differential Fertilization Genes, Ga Ga, To Certain Other Genes Of The Su-Tu Linkage Group Of Maize, R. A. Emerson
Relation Of The Differential Fertilization Genes, Ga Ga, To Certain Other Genes Of The Su-Tu Linkage Group Of Maize, R. A. Emerson
Department of Agronomy and Horticulture: Faculty Publications
The Ga, or “gamete” gene of maize can be studied only or principally by its disturbance of normal Mendelian ratios of contrasted characters differentiated by genes linked with it. The amount of this disturbance can be used as a measure of the intensity of linkage between Ga and other genes of the su-Tu group.
Disturbance of the 3:1 ratio of starchy, Su, to sugary, su, endosperm has been most studied. In one of the early papers on Mendelian inheritance, Correns (1902) reported that, although crosses between most starchy and sugary varieties gave an F2 ratio of …
The A Series Of Allelomorphs In Relation To Pigmentation In Maize, R. A. Emerson, E. G. Anderson
The A Series Of Allelomorphs In Relation To Pigmentation In Maize, R. A. Emerson, E. G. Anderson
Department of Agronomy and Horticulture: Faculty Publications
Introduction ... 503
The allelomorph Ab ... 504
The allelomorph ap ... 505
Dominance ... 508
Summary ... 508
Literature Cited ... 509
The Frequency Of Somatic Mutation In Variegated Pericarp Of Maize, R. A. Emerson
The Frequency Of Somatic Mutation In Variegated Pericarp Of Maize, R. A. Emerson
Department of Agronomy and Horticulture: Faculty Publications
Some years ago (Emerson 1922) the writer announced that in F2 of
certain crosses of variegated with colorless pericarp in maize the heterozygous
individuals changed to self color more frequently than did the homozygous
individuals of the same cultures. No “explanation” of this phenomenon
was then apparent, but later results, though still far from affording
an adequate solution of the problem, have furnished at least a working
hypothesis. The original unpublished paper, with minor modifications,
is given below, under the heading. “Somatic mutations in heterozygous
and in homozygous variegated pericarp.”
Control Of Flowering In Teosinte: Short-Day Treatment Brings Early Flowers, R. A. Emerson
Control Of Flowering In Teosinte: Short-Day Treatment Brings Early Flowers, R. A. Emerson
Department of Agronomy and Horticulture: Faculty Publications
Attempts to force teosinte into flower in mid-summer, in order to facilitate hybridizing it with maize, have afforded considerable information concerning the flowering time of teosinte under diverse conditions. The possibility that some of this information may be of use to others suggests its publication. The paper is, therefore, to be considered as a help in the technique of teosinte and maize hybridization rather than a contribution ~to the solution of the physiological problems involved.
A Genetic View Of Sex Expression In The Flowering Plants, R. A. Emerson
A Genetic View Of Sex Expression In The Flowering Plants, R. A. Emerson
Department of Agronomy and Horticulture: Faculty Publications
It seems a conservative statement to say that studies
of the past twenty years among animal forms have
tended increasingly to link the phenomena of sex inheritance
with the behavior of chromosomes. To this
result, cytology and genetics have contributed perhaps
almost equally. The number of forms in which
one sex is known to have a morphologically different
chromosome complex from the other sex are many.
That, with respect to the chromosomes, the female of
certain forms produces gametes of a single kind,
whereas the male produces two kinds, and that in
turn an egg fertilized by one kind of …
Size And Structure Of Leaves Of Cereals In Relation To Climate, William Edward Bruner, John E. Weaver
Size And Structure Of Leaves Of Cereals In Relation To Climate, William Edward Bruner, John E. Weaver
Papers from the University Studies series (University of Nebraska)
Although a very large amount of work has been done on the variation in form, size, and anatomical structure of native plants grown under different conditions, relatively little attention has been given to similar studies of crop plants. As far as we are able to ascertain, no investigations have been made of variation in the leaves of cereal crops grown under widely different, measured environments.
During the past few years (1920-23), in connection with studies on the development and activities of the roots of crop plants (Weaver, Jean, and Crist, 1922), plant production as a measure of environment (Weaver, 1924), …
Pericarp Studies In Maize. I. The Inheritance Of Pericarp Colors, E. G. Anderson, R. A. Emerson
Pericarp Studies In Maize. I. The Inheritance Of Pericarp Colors, E. G. Anderson, R. A. Emerson
Department of Agronomy and Horticulture: Faculty Publications
Introduction ... 466
Nomenclature ... 467
Pigments present in colored pericarp ... 467
Factor relations of pericarp colors ... 468
Factor relations of red pericarp, P ... 468
Factor relations of cherry pericarp ... 471
Discussion and Summary ... 474
Literature Cited ... 475