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A Genetic Analysis Of Economic Characteristics Of Range Beef Heifers, Keith O. Zoellner

Electronic Theses and Dissertations

The beef cattle industry is one og the major sources of rural income in South Dakota. According to the South Dakota Crop and Livestock Reporting Services (1956), there were 1,492,000 beef cows and yearling beef heifers on the farms and ranches in South Dakota as of January 1, 1957. They also reported that sales from cattle and calves amounted to approximately 34.6 percent of the gross farm and ranch income in the state. Since the beef cattle industry is a major source of the farm and ranch income in South Dakota, any improvement in the performance of beef cattle will …

Five-Year Results In An Aspen Sucker Density Study, Rudolph O. Strothmann, Miron L. Heinselman

Aspen Bibliography

No abstract provided.

The Growth And Yield Of Aspen [Populus Tremuloides] In Saskatchewan, C. L. Kirby, W. S. Bailey, J. G. Gilmour

Aspen Bibliography

This report is a summary of all studies carried out by the Saskatchewan Forestry Branch in hardwood stands. Aspen, the principal component of the hardwood stands, is the most abundant tree species by both volume and area in Saskatchewan and is most difficult to analyze. This report presents conclusions from which further studies can be conducted. It is hoped that in the future closer correlation with site-types may be made as it is difficult and probably not desirable to make further generalization on a province-wide basis. However, before detailed questions could be studies it was necessary to have a picture …

Aspen Leaf Blight In The Intermountain Region, James L. Mielke

Aspen Bibliography

No abstract provided.

The Growth And Yield Of Aspen In Saskatchewan, C. L. Kirby, W. S. Bailey, J. G. Gilmour

Aspen Bibliography

No abstract provided.

Field Guide To Aid In Recognition Of Natural Triploid Aspen, Philip N. Joranson, Dean W. Einspahr, J P. Van Buijtenen

Aspen Bibliography

Swedish experience with the genetic improvement of the European aspen (Populus tremula L.), a species which is closely kin to our North American quaking aspen (P. tremuloides Michx.), suggests that the rate of volume increment and the length of fiber tracheids might both be increased in North American aspen by finding or producing trees which possess a triple set, rather than the usual double set, of "chromosomes". Chromosomes (Figure 1) are found within and inner region--the nucleus--of each of the millions of cells formed during the growth of a tree.

A Critical Study Of The Chromosomes In Two Species Of Myxophyceae, John Thomas Mullins

Master's Theses

The Myxophyoeae or blue-green algae have been frequent subjects for cytological investigation since Schmitz (1879) first called attention to two regions in the protoplast. Since that publication the morphological and chemical nature of the genetic material and the mechanism of cell division in the Myxophyceae has been a controversial subject, The evidence that has been presented is, tor the most part, more voluminous than enlightening.

This investigation was undertaken in order to verify the methods and check the results obtained with the smear technique by Strickland (1948). Additional methods were also applied which might enable a more critical evaluation of …

Nebraska Deer, William Bailey Jr., George Schildman, Phillip Agee, C. G. Pritchard

Nebraska Game and Parks Commission: Publications

IN COMMON with the experience of most states, Nebraska's deer herds were reduced to a very low level by excessive harvests in our early history. Most American big-game animals were overharvested in the early history of this nation because of commercialization. Buffalo were killed for their hides, deer for their meat. This slaughter continued as long as the hunter (or poacher) could sell his take at a profit. Modem game management and public opinion reversed this trend. Deer are on the way back all over America, and in some states the protection-complex was so strong that deer were restored to …

Nebraska Deer, William Bailey Jr., George Schildman, Phillip Agee, C. G. Pritchard

Nebraska Game and Parks Commission: Publications

IN COMMON with the experience of most states, Nebraska's deer herds were reduced to a very low level by excessive harvests in our early history. Most American big-game animals were overharvested in the early history of this nation because of commercialization. Buffalo were killed for their hides, deer for their meat. This slaughter continued as long as the hunter (or poacher) could sell his take at a profit. Modem game management and public opinion reversed this trend. Deer are on the way back all over America, and in some states the protection-complex was so strong that deer were restored to …

The Effects Of Low Temperature On Survival Of Rabbit Ova, Mansur Ferdows

Electronic Theses and Dissertations

In the field of animal production, genetic characteristics determine to a large extent the quality and the economy of the cattle. To hasten the wide spread dissemination of germ plasm, many commercial farmers have resorted to artificial insemination. Artificial insemination has however, only allowed for the wide spread dissemination of germ plasm from the male. If the female germ plasm could also be more easily disseminated through the highly experimental process of ova transfer, then more than the average number of offspring could be expected from a female in her life time. Because ova transplantation is in its infancy, many …

Correlation Of Size With Number Of Protophloem Points In Roots Of Zea Mays L., Elizabeth J. Cahoon

Journal of the Minnesota Academy of Science

No abstract provided.

Variation In Nymphaea, The White Waterlily, In The Itasca State Park Region, Paul H. Monson

Journal of the Minnesota Academy of Science

No abstract provided.

A List Of The Flora Of The Eastern Part Of Blue Earth County, Minnesota, Harvey G.A. Johnson, Laroy W. Zell

Journal of the Minnesota Academy of Science

No abstract provided.

The Natural Hybrid Of Paper Birch And Bog Birch, Knud E. Clausen

Journal of the Minnesota Academy of Science

No abstract provided.

Notes On The Tardigrada Of Minnesota, Mason R. Boudrye

Journal of the Minnesota Academy of Science

No abstract provided.

Orientation Of The Franklin Ground Squirrel To Environmental Objects, Howard D. Orr

Journal of the Minnesota Academy of Science

No abstract provided.

Statistical Sampling Techniques As Applied To Fish Populations, Zane Scheftel

Journal of the Minnesota Academy of Science

No abstract provided.

Methods For Detecting The Extent Of Contamination And Penetration Of Wheat By Rodent Urine, J. W. Laakso

Journal of the Minnesota Academy of Science

No abstract provided.

Effect Of Environment On The Percentage Of Summerwood And Specific Gravity Of Slash Pine, Philip R. Larson

Yale School of the Environment Bulletin Series

No abstract provided.

Lone Star Tick, Amblyomma Americanum, J. L. Lancaster

Journal of the Arkansas Academy of Science

No abstract provided.

Scrapbook 54-55, Mandarin Garden Club

Mandarin Garden Club Scrapbooks

Scrapbook includes images, club news and news clippings. Scrapbook includes items from 1956 and 1957. Includes the Eleventh Annual Camellia Show program from January 1947. Cover material: Cardboard. Size: 13” x 12.06” x 1”.

An Ecological Survey Of The Vegetation Of The Dinosaur National Monument, Utah, Stanley L. Welsh

Theses and Dissertations

The present work is a general survey of the vegetation of the Utah portion of the Dinosaur National Monument with special emphasis on some of the ecological aspects of the area. The vegetation ranges from xerophytic plant communities of the lower elevations to mesophytic communities of the higher elevations. Hydrophytic plant communities are also present to a limited extent along the Green River and where seeps or springs arise. Soils vary from fine clay to coarse gravel. The dividing lines between formations is often marked by extreme differences in soil type. During the author's first collecting trip into the Monument …

Letter From J. E. Alston And C. A. Harris To Pastors, Deacons, And Members Of Churches With A Questionnaire, J. E. Alston, C. A. Harris

Documents

Letter from J. E. Alston and C. A. Harris to Pastors, Deacons, and Members of Churches, requesting them to sponsor a NFA member from their church. Questionnaire for churches.

New Farmers Of America Fourth Annual Encampment, New Farmers Of America

Documents

New Farmers of America fourth annual encampment.

Introgression In Purshia Tridentata (Pursh) Dc. And Cowania Stansburiana Torr, Lindsey Kay Thomas

Theses and Dissertations

A study ot discordant variation in populations of Purshia tridentata, Purshia glandulosa, and Cowania Stansburiana has disclosed that introgressive hybridization can be expected whenever these species come in contact with each other. The introgression is not only of one pure species into that of another, but is also of introgressed populations into other introgressed populations and of pure populations into introgressed populations. Evidence was found showing that in all probability Purshia glandulosa is a stabilized segregant derived from introgressed populations. Evidence was also found and presented to show that introgression is responsible for the recent acquisition of stalked hypanthium glands …

New Farmers Of America Needs Your Help To Complete Nfa Camp, New Farmers Of America

Documents

New Farmers of America Needs Your Help to Complete NFA Camp, NC Association of New Farmers of America, A&T College, Greensboro, NC. Signed A. P. Bell.

Report Of The Proceedings Of The Ninth Annual Convention Of The Missouri Association Of The New Farmers Of America, New Farmers Of America

Documents

Report of the proceedings of the ninth annual convention of the Missouri association of the New Farmers of America, Lincoln University, Agriculture Department, Jefferson City, Missouri.

The Ticks Or Ixodides Of The U.S.S.R.: A Review Of The Literature, George Anastos

Harold W. Manter Laboratory of Parasitology: Library Materials

No abstract provided.

Translation By Virginia Ivens Of Coccidia Of Sheep And Goats Of Western Kazakhstan By S. K. Svanbaev In Works Of The Institute Of Zoology, Academy Of Sciences, Kazakh Ssr 7 (1957): 252-257, S. K. Svanbaev, Virginia Ivens

Harold W. Manter Laboratory of Parasitology: Library Materials

Translation number 1, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States

Translation of Coccidia of sheep and goats of western Kazakhstan by S. K. Svanbaev, in Works of the Institute of Zoology, Academy of Sciences, Kazakh SSR (1957) 7: 252-257

Transliteration: K voprosu o faune i morfologii koktsidii ovets i koz zapadnogo Kazakhstana. Trudy Instituta Zoologii Akademie Nauk Kazakh SSR (1957) tom VII (1957): 252-257

Translated from Russian to English by Virginia Ivens, University of Illinois, March 21, 1960 (11 pages)

Influence Of Various Factors On Aggregation Of Peorian Loess By Microorganisms, T. M. Mccalla, Francis A. Haskins, E. F. Frolik

Department of Agronomy and Horticulture: Faculty Publications

Soil structure is important in the attainment of adequate aeration for the aerobic microorganisms whose activities maintain such higher plant nutrients as sulfur, phosphorus, and nitrogen in a highly oxidized and thus readily available state. Good soil structure is also necessary for soil and water conservation, Under Nebraska conditions microorganisms and their decomposition products constitute a major source of soil-aggregating agents. The decomposition of crop residues and plant roots is important in the nutrition of these aggregating microorganisms. Other microorganisms, however, also utilize crop residues and plant roots, and they may decompose the aggregating agents as well, so that the …