Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- Eastern Illinois University (67)
- Department of Primary Industries and Regional Development, Western Australia (50)
- University of Nebraska - Lincoln (21)
- Claremont Colleges (11)
- South Dakota State University (10)
-
- Utah State University (8)
- Brigham Young University (7)
- University of Minnesota Morris Digital Well (5)
- University of Massachusetts Amherst (4)
- Portland State University (3)
- University of Arkansas, Fayetteville (3)
- University of Kentucky (3)
- William & Mary (3)
- The University of Maine (2)
- Western Kentucky University (2)
- Winthrop University (2)
- California State University, San Bernardino (1)
- Connecticut College (1)
- Marshall University (1)
- Morehead State University (1)
- University of Connecticut (1)
- University of Southern Maine (1)
- University of the Pacific (1)
- Keyword
-
- Western Australia (43)
- Grains and field crops (27)
- Biosecurity, pests, weeds and diseases (10)
- Varieties (5)
- Variety trials (5)
-
- Lupins (3)
- Nebraska (3)
- Animal production and livestock (2)
- Corn (2)
- Crops (2)
- Disease control (2)
- Fertilization (2)
- Horticulture (2)
- Leaf diffusive resistance (2)
- Pennisetum clandestinum (2)
- Production possibilities (2)
- Protein (2)
- Soybeans (2)
- Trifolium subterraneum (2)
- Wheat (2)
- Women's Clubs (2)
- Women's History (2)
- 1000-kernel weight (1)
- Abronia (Reptiles) (1)
- Acid Mine spoils (1)
- Alfalfa (1)
- Algae (1)
- Algae--Growth (1)
- Anabaena (1)
- Anemopsis californica (1)
- Publication
-
- Specimens by Name (64)
- Experimental Summaries - Plant Research (30)
- Journal of the Department of Agriculture, Western Australia, Series 4 (18)
- Aliso: A Journal of Systematic and Floristic Botany (11)
- Aspen Bibliography (6)
-
- Electronic Theses and Dissertations (6)
- Department of Plant Pathology: Faculty Publications (5)
- Journal of the Minnesota Academy of Science (5)
- The Prairie Naturalist (5)
- United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications (5)
- Agricultural Experiment Station and Research Farm Annual Reports (4)
- Great Basin Naturalist Memoirs (4)
- Historical Research Bulletins of the Nebraska Agricultural Experiment Station (4)
- Turf Bulletin (4)
- Agronomy Notes (3)
- Brigham Young University Science Bulletin, Biological Series (3)
- Dissertations and Theses (3)
- Journal of the Arkansas Academy of Science (3)
- Masters Theses (3)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (2)
- Dissertations, Theses, and Masters Projects (2)
- Manuscript Collection (2)
- Masters Theses & Specialist Projects (2)
- Bulletins (1)
- Bulletins - 3000 - 3999 (1)
- Department of Agronomy and Horticulture: Faculty Publications (1)
- Dickey-Lincoln School Lakes Project (1)
- Earth Science Faculty Scholarship (1)
- Guides to Manuscript Collections (1)
- Maine Collection (1)
- Publication Type
Articles 151 - 180 of 208
Full-Text Articles in Life Sciences
Some Effects Of Prescribed Fire At Cedar Creek Natural History Area, A. N. Axelrod, F. D. Irving
Some Effects Of Prescribed Fire At Cedar Creek Natural History Area, A. N. Axelrod, F. D. Irving
Journal of the Minnesota Academy of Science
On four oak savanna restoration compartments with a total area of 100 acres, annual burns (1965-1972) reduced the percent of milacre plots stocked with hazel to 39 compared with 65 on unburned areas. Four growing seasons after one and three fires the hazel distribution was not significantly different from the control. Annual burns increased the density of hazel stems in clones to 19.5 per .0001 acre compared to 11.0 on controls. Stem density four years after 1 and 3 burns averaged 10.0 and 8.0 per .0001 acre. The o.d. weight of live hazel stems per .0001 on annual burn areas …
Energy Potential Of Cattails (Typha Spp.) And Productivity In Managed Stands, N. J. Andrews, D. C. Pratt
Energy Potential Of Cattails (Typha Spp.) And Productivity In Managed Stands, N. J. Andrews, D. C. Pratt
Journal of the Minnesota Academy of Science
Because of their high productivity in both natural and managed stands, cattails are being considered as a potential "energy crop". Yields of 40 tons per hectare, including above and below ground biomass, have been reported (Moss et al., 1977). Yields from plants grown in managed paddies on peat are generally 20-30 percent lower. The maximum shoot weight occurs in August while maximum below ground biomass is reached in October. Total biomass increased with increasing rates of fertilizer application but differences were not significant. Differences between the initial nutrient contents of the two peat types used were more important than fertilizer …
Unialgal Growth Of Anabaena And Dictyosphaerium In Lake Itasca, Charles P. Mason
Unialgal Growth Of Anabaena And Dictyosphaerium In Lake Itasca, Charles P. Mason
Journal of the Minnesota Academy of Science
A relatively new field technique was employed to determine the growth of algae in natural waters. Anabaena sp. (Cyanophyta) and Dictyosphaerium sp. (Chlorophyta) were grown in separate membrane filter chambers situated in Lake Itasca and LaSalle Lagoon, a sewage effluent pond. Physical and chemical determinations before and after each two-week experiment were correlated with changes in algal biomass. Wet weight determinations of Anabaena were twice as great in the lake as in the sewage lagoon, while Dictyosphaerium growth was the same in both habitats. Nitrogen (nitrate and nitrite) was 0.09 • 0.2 mg/1 in the lagoon and from less than …
The Elongation Of The Leaf Of Cyclamen Persicum Mill. (Cultivars), Marshall D. Sundberg
The Elongation Of The Leaf Of Cyclamen Persicum Mill. (Cultivars), Marshall D. Sundberg
Journal of the Minnesota Academy of Science
The leaves of three cultivars of Cyclamen persicum were examined at several stages of development in order to determine the pattern of elongation in both the lamina and petiole. Although there is a considerable literature on lamina elongation, relatively little is known about the growth of the petiole. In the latter structure it is usually assumed that an intercalary meristem is involved. Elongation of the young leaf is initially due to activity distributed throughout the deve1opint organ. Maturation of the leaf progresses acropetally from the base of the petiole and basipetally from the tip of the lamina. As the leaf …
Effects Of Nutrients On Productivity And Morphology Of Typha Angustifolia X Latifolia, V. Bonnewell, D. C. Pratt
Effects Of Nutrients On Productivity And Morphology Of Typha Angustifolia X Latifolia, V. Bonnewell, D. C. Pratt
Journal of the Minnesota Academy of Science
The productivity of natural stands of cattails (Typha latifolia) has been correlated with the amounts of nutrients in the soil and water by Boyd and Hess (Ecology, 51: 296, 1970). The direct effects of varying levels of nitrogen (N), phosphorus (P) and potassium (K) on productivity were examined in our study by growing cattails in Hoagland's nutrient solution. Concentrations of ¼, 1/16, and 1/64 the amount of N present in complete Hoagland's solution (0.01Ml resulted in 63 percent, 48 percent and 26 percent of the dry weight of plants grown in complete solution. Rhizomes used to start plants contained considerable …
Spring 1987 Conference Issue, Brian M. Silva, J. Troll, M. Bryant, Richard Dattner
Spring 1987 Conference Issue, Brian M. Silva, J. Troll, M. Bryant, Richard Dattner
Turf Bulletin
- Phosphorus and Its Effect on Plant Growth (page 3)
- Dollar Spot Fungicide Control Trial--1977 (9)
- Forty-Seventh Annual Turf Conference and Second Industrial Show Program (10)
- Parks for the Year 2000 (15)
Fall 1978, Harry C. Eckhoff, Kent W. Kurtz, Carol Dana
Fall 1978, Harry C. Eckhoff, Kent W. Kurtz, Carol Dana
Turf Bulletin
- Guidelines for Planning and Building a Golf Course (page 3)
- Turfgrass Field Day (6)
- Problems in Managing Turfgrass in Shade (9)
- Escape to the Islands--in Boston Harbor (15)
Summer 1978, R. H. Miller, J. F. Wilkinson, Joseph Troll, Kirk Hurto, Joseph Levy
Summer 1978, R. H. Miller, J. F. Wilkinson, Joseph Troll, Kirk Hurto, Joseph Levy
Turf Bulletin
- Nature of the Organic Coating on Sand Grains of Nonwettable Golf Greens (page 3)
- Massachusetts Turfgrass Winter Injury (6)
- Investigation and Treatment of Localized Dry Spots on Sand Golf Greens (8)
- A Recreation Renaissance (15)
- UMass Turfgrass Research Fund (20)
Winter 1978, William Emerson, O. A. Christiansen, John M. Zak
Winter 1978, William Emerson, O. A. Christiansen, John M. Zak
Turf Bulletin
- The Psychological Approach to Golf Course Management (page 3)
- Massachusetts Pesticide News (6)
- Cross-Country Skiing: Good Winter Recreation that Pays its Own Way (8)
- Sacrification of Large Scale Areas, e.g. Golf Course Fairways, Winter Games Areas, Etc. (15)
- Plant Materials for Outlying Areas
- Biological Control of Crop Diseases (18)
Nitrogen Fixation (Acetylene Reduction) Associated With Roots Of Winter Wheat And Sorghum In Nebraska, Wayne L. Pedersen, K. Chakrabarty, R. V. Klucas, Anne K. Vidaver
Nitrogen Fixation (Acetylene Reduction) Associated With Roots Of Winter Wheat And Sorghum In Nebraska, Wayne L. Pedersen, K. Chakrabarty, R. V. Klucas, Anne K. Vidaver
Department of Plant Pathology: Faculty Publications
Root segments and root-soil cores (6.5-cm diameter) from fields and nurseries of winter wheat and sorghum were tested for N2 fixation by using the acetylene reduction assay. Wheat samples (~1,200) from 109 sites generally had low or no activity (0 to 3.1 nmol of C2H4 produced per h per g [dry weight] of root segments), even after 24 h of incubation. However, a commercial field of Scout 66, located in western Nebraska, exhibited appreciable activity (290 nmol of C2H4 produced per h per g [dry weight] of root segments). Of 400 sorghum lines …
Purification Of Some Legume Carlaviruses, Venkateswarlu Veerisetty, Myron K. Brakke
Purification Of Some Legume Carlaviruses, Venkateswarlu Veerisetty, Myron K. Brakke
Department of Plant Pathology: Faculty Publications
Purification schemes were developed which yielded 0.7 to 1.0 mg of alfalfa latent virus (ALV) and pea streak virus (PSV) and 0.1 to 0.3 mg of red clover vein mosaic virus (RCVMV) per gram pea cullivar Lincoln ) plant tissue (excluding roots). The freezing of the tissue and the use of an appropriate extraction buffer were crucial. Virus from sap was precipitated by 6%(w/v) polyethylene glycol (PEG, MW 6,000) and concentrated by two cycles of differential centrifugation. Partially purified virus preparations had a single nucleoprotein component in rate-zonal sucrose and equilibrium cesium chloride density gradient centrifugation. The virus preparations did …
Testicular Steroid Secretion In Response To Gnrh-Mediated Lh And Fsh Release In Bulls, B. D. Schanbacher, S. E. Echternkamp
Testicular Steroid Secretion In Response To Gnrh-Mediated Lh And Fsh Release In Bulls, B. D. Schanbacher, S. E. Echternkamp
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Assay of frequently collected blood samples in four mature Hereford bulls indicated the existence of a tonic mechanism for the secretion of luteinizing hormone (LH) and follicle stimulating hormone (FSH), i.e., their episodic release was not observed. Increased plasma concentrations of LH and FSH, however, were obtained in response to an intravenous injection of 500 µg of gonadotropin releasing hormone (GnRH). These gonadotropins showed similar secretory profiles after GnRH, but the relative magnitude of the LH response (30-fold) was considerably greater than that of the FSH response (sevenfold).
Concentrations of testosterone in jugular and spermatic vein blood were increased sevenfold …
The Welfare Effects Of Erosion Controls, Banning Pesticides, And Limiting Fertilizer Application In The Corn Belt: Comment, Clayton Ogg
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
The recent Journal work by C. Robert Taylor and Klaus Frohberg was an impressive study from the standpoint of both the energy and imagination that must have gone into the model and the practical implications concerning the welfare effects of nonpoint pollution abatement. Yet, it appears that costs of nutrient management were considerably overestimated in the light of a number of experiments using techniques for controlling nutrient losses through proper timing of nitrogen fertilizer applications. Therefore. the model may have failed to represent the most cost effective techniques for reducing nitrogen pollution.
Seed Kikuyu Performs Well, K E. Hawley
Seed Kikuyu Performs Well, K E. Hawley
Journal of the Department of Agriculture, Western Australia, Series 4
The kikuya variety, Whittet, which can be established from seed has performed well in a trial at Denmark.
In Vitro Propagation And Tissue Culture Of Selected Monocots, Reid Harvey Graves
In Vitro Propagation And Tissue Culture Of Selected Monocots, Reid Harvey Graves
Dissertations, Theses, and Masters Projects
No abstract provided.
Scaled Chrysophyceae From Arkansas. Ii. The Genera Mallaomonas, Paraphysomonas And Spiniferomonas, Robert A. Andersen
Scaled Chrysophyceae From Arkansas. Ii. The Genera Mallaomonas, Paraphysomonas And Spiniferomonas, Robert A. Andersen
Journal of the Arkansas Academy of Science
This is the second paper of a floristic survey of the scaled Chrysophyceae of Arkansas and includes the following species: Mallomonax crassisquama, M. cratis var. Asmumdine, M. papillosa, M. caudata, M. heterospina, M. insignis, Paraph vsomonas vestita, P. imperforwa and Spiniferomonas conica
Renovation Of Nitrogenous Wastewater Via Land Application, John T. Gilmour, A. C. Peer, D. C. Regan
Renovation Of Nitrogenous Wastewater Via Land Application, John T. Gilmour, A. C. Peer, D. C. Regan
Journal of the Arkansas Academy of Science
Removal of inorganic and organic nitrogen from wastewater prior to recharge of ground and surface waters can be accomplished by judicious land application. This study focused attention upon the feasibility of using sprinkler irrigation as the wastewater delivery system with coastal bermudagrass (Cynodon dactylon L.,var. coastal) pasture as the wastewater sink. One site was located on a Sawyer soil near El Dorado, while the other was located on a Savannah soil near Malvern. This report is limited to the renovation of surface waters. Results revealed that nitrogen concentration in runoff water from rainfall was substantially less than nitrogen concentration of …
Kikuyu Grass : Establishment, Management And Utilisation In The South West., R. Sprivulis
Kikuyu Grass : Establishment, Management And Utilisation In The South West., R. Sprivulis
Bulletins - 3000 - 3999
Kikuyu grass (Pennisetum clandestinum), kikuyu for short, is a summer growing turf-forming perennial. In the absence of winter frosts and with sufficient summer moisture it remains green all year round. It is a vigorous and aggressive grass spreading by means of prostrate above and below ground stems rooting at the nodes. Some selections and recent introductions of this species are fertile and produce seed. The seeds, when eaten by stock, can be widely spread in their droppings.
Lupin Wild Types Introduced Into Western Australia To 1973, G B. Crosbie, John S. Gladstones
Lupin Wild Types Introduced Into Western Australia To 1973, G B. Crosbie, John S. Gladstones
Technical Bulletins
Collection site data, preliminary rating of field characteristics and disease reactions, and measurements of seed protein oil contents.
A Comparative Scanning Electron Microscope Study Of Leaf Surface Morphology And Anatomy For Four Species Of Abronia Found Within California, Elliott Helm
Theses Digitization Project
No abstract provided.
How Efficient Are Seeding Operations : Kondinin Work Study, E J. Roberts, C. R. Lester, J. E. Young
How Efficient Are Seeding Operations : Kondinin Work Study, E J. Roberts, C. R. Lester, J. E. Young
Journal of the Department of Agriculture, Western Australia, Series 4
The efficiency of machinery and labour during seeding operations was studied in 1977 by the Kondinin and Districts Farm Improvement Group and the Department of Agriculture. The aim was to find what influenced efficiency during cropping.
Time spent on activities during the working day was measured, and it was found that repairs, maintenance, meals and other incidental jobs considerably reduced the time spent driving the tractor.
Each farmer participating in the study was given the results of his own farm compared to the group, indicating tasks most needing improvement.
Water And Nitrogen Husbandry For Irrigated Corn In Central South Dakota, Stanley Eugene Papendick
Water And Nitrogen Husbandry For Irrigated Corn In Central South Dakota, Stanley Eugene Papendick
Electronic Theses and Dissertations
The purpose of this study was to evaluate the effects of supplemental water and nitrogen on corn yields. Central South Dakota was chosen as the location for this study because of its existing irrigation and the limited research data available from that part of the state. The objectives were: (1) to determine corn yield response to various water regimes, (2) to determine corn yield response to nitrogen applications, and (3) to determine corn yield response to nitrogen application methods.
Summary Of Results Minimum Tillage Trial 1978, Take-All And Root Rot Assessments., G C. Mac Nish
Summary Of Results Minimum Tillage Trial 1978, Take-All And Root Rot Assessments., G C. Mac Nish
Experimental Summaries - Plant Research
77A16, 77A43, 78BA42, 77E18, 77E52, 77M13, 77M56, 78M25, 77MT15, 77MT51, 77WH17, 77WH88.
Yield Loss Due To Weeds In Wheat., John Moore
Yield Loss Due To Weeds In Wheat., John Moore
Experimental Summaries - Plant Research
Yield loss due to weeds in wheat 1, 78M36.
Yield loss due to weeds in wheat 2, 78C35.
Yield loss due to weeds in wheat 3, 78BA53.
Yield loss due to weeds in wheat 4, 78WH68.
Results.
Variety By Time And Rate Of Planting., M W. Perry
Variety By Time And Rate Of Planting., M W. Perry
Experimental Summaries - Plant Research
Variety x time of planting x septoria control, wheat, 78BA5.
Oat genotype x time of planting, 78BA3, 78A5, 78MT6,78 B2,
Seedling rates for oats, 78MT7,78 A6, 78 BA4, 78 B3,
Crop trials, high rainfall, 78BR4, 78MA5, 78KE6, 78KE5.
Alternative crops for black wattle soils, 78GE26.
Long Term Rotation Trials, 1978., I Rowland
Long Term Rotation Trials, 1978., I Rowland
Experimental Summaries - Plant Research
66M29, 67C13, 67N4, 68E5, 68SG5, 73SG16.
Investigations Of Ryegrass Toxicity., Brian A. Stynes
Investigations Of Ryegrass Toxicity., Brian A. Stynes
Experimental Summaries - Plant Research
Effect of burning on the production of galls, 78KA13.
Effect of the nematicide Nemacur, on the development of toxicity in ryegrass pasture, 78KA15.
Survival of Anguina sp and emergence from galls, 78KA14.
Study of populationsof Anguina sp on plants, 78KA31.
Predictive Test For Take-All; Effect Of Nitrogen Fertalizers On Wheat Rhizosphere Micro-Organisms., K Sivasithamparam
Predictive Test For Take-All; Effect Of Nitrogen Fertalizers On Wheat Rhizosphere Micro-Organisms., K Sivasithamparam
Experimental Summaries - Plant Research
Predictive test for take-all. The use of the most probable number technique.
Effect of nitrogen fertalizers on wheat rhizosphere micro-organisms, 78LG3, 78E16.
76LG25, 77LG20, 76E6, 77JE4, 78LG3, 78E16,
Effect Of Limestone On Spring Weed Populations In A Fertilized Coastal Bermudagrass Sod, H. C. Fulcher, Lyell F. Thompson
Effect Of Limestone On Spring Weed Populations In A Fertilized Coastal Bermudagrass Sod, H. C. Fulcher, Lyell F. Thompson
Journal of the Arkansas Academy of Science
No abstract provided.
The Effect Of Foliar Fertilization On Soybean Yield And Leaf Necrosis, Robert Jay Goos
The Effect Of Foliar Fertilization On Soybean Yield And Leaf Necrosis, Robert Jay Goos
Electronic Theses and Dissertations
The soybean (Glycine max (L.) Merrill) is a very important world crop. The seed is rich in both protein and oil, making it a valuable human food resource. Many scientists believe that there are physiological barriers preventing increased soybean yields. Any agronomic discovery that would consistently increase soybean yields would be important to world food production. One possible yield barrier in soybeans concerns the mineral nutrition of the plant during the seed-filling stages of growth. During this period of growth, translocation of N, P, K, and S from the plant foliage to the developing seed occurs, accompanied by a virtual …