Life Sciences Commons^™

The Effect Of Fomes Ignarius On Populus Tremuloides In The Gallatin National Forest Of Montana, Marvin F. Kelly

Aspen Bibliography

No abstract provided.

Regeneration Of Native Midwestern Pastures Under Protection, J. E. Weaver, W. W. Hansen

Department of Agronomy and Horticulture: Faculty Publications

The origin of native midwestern pastures from virgin prairie and the degeneration of the prairie under long-continued grazing have been outlined in some detail in a previous bulletin (Weaver & Hansen 1941). During the last four years much study has been given to the converse phenomenon of the regeneration of native midwestern pastures when grazing animals were excluded. This universal phenomenon of the return of vegetation to something of its former natural condition is summed up in the term plant succession (Clements 1928). In connection with pastures derived from true prairie, it is of great practical as well as scientific …

North And South Dakota Horticulture, May 1941, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 14, Number 5

The Phoebe, O.A. Stevens
Newslants, H.A. Graves
New Apple Seedlings, Dr. N.E. Hansen
Manitoba News Letter, W.R. Leslie
President's Corner, H.E. Beebe
May Garden Notes, W.E.H. Porter
Fruit & Vegetable Notes, F.X. Wallner
Secretary's Corner, W.A. Simmons
Questions & Answers, L.L. Davis
Book Reviews, Mrs. F. Briley

The Development Of The Sporangium Of Aspidium (Cyrtomium) Falcatum, Rita Thorpe

Bachelors’ Theses

It is the purpose of the writer in this thesis, to describe the development of the sporangium of Aspidium (Cyrtomium) falcatum, and to observe some of the cytological features of the sporogenous cells.

Sampling Studies In Morning Glory Roots, Lowell W. Rasmussen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Farmers and agriculturalists have in recent years become more conscious of the seriousness of the weed problems. The solution of this problem is obviously the development of more efficient and less costly methods of eradication. Most pernicious weeds are propagated vegetatively by means of underground parts in which reserve food is stored as a source of energy in tiding the plant over winter and initiating spring growth each year. In order to get at the behavior of these perennial parts, it is necessary to resort to a study of root reserves. This involves information not only on the composition of …

A Study Of The Physiology Of Grape Roots And Stocks In Relation To A Lime-Induced Chlorosis, Eldrow Reeve

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The word chlorosis comes from the Greek "chloros" meaning light green and is used by plant science workers to designate a disease of plants, the characteristic symptom of which is the yellowing of the leaves.

Viola Sororia Willd., John Mccree

Specimens by Name

No abstract provided.

Hardiness Of Woody Plants In Minnesota, H. E. Stork

Journal of the Minnesota Academy of Science

No abstract provided.

North And South Dakota Horticulture, April 1941, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 14, Number 4

The Duck Hawk, O.A. Stevens
Newslants, H.A. Graves
S.D. Trees, E.H. Everson
Manitoba News Letter, W.R. Leslie
Presidents Corner, H.E. Beebe
April Notes, W.E.H. Porter
Fruits & Vegetable Notes, F.X. Wallner
Secretary's Corner, W.A. Simmons
Questions & Answers, L.L. Davis
Book Reviews, W.A. Simmons

Bulletin No. 296 - Uton: A New High-Yield White Oat Resistant To Loose And Covered Smuts, D. C. Tingey, R. W. Woodward, T. R. Stanton

UAES Bulletins

Oats have been among the five or six leading crops in acreage grown in Utah since its settlement. For many years Swedish Select has been by far the most predominant variety. This variety is well adapted to Utah conditions, but because of its high susceptibility to loose and covered smut, it is not the most desirable.

In 1934, after extensive trials, the variety, Markton, which is resistant to loose and covered smuts, was introduced into the state to replace Swedish Select. In those trials, Markton averaged 13 percent higher in acre yield than Swedish Select. Markton possessed one drawback in …

North And South Dakota Horticulture, March 1941, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 14, Number 3

The Pidgeon Hawk, O.A. Stevens
Newslants, H.A. Graves
South Dakota Trees, E.H. Everson
Manitoba News Letter, W.R. Leslie
President's Corner, H.E. Beebe
March Notes, W.E.H. Porter
Fruit & Vegetable Notes, F.X. Wallner
Secretary's Corner, W.A. Simmons
Questions & Answers, L.L. Davis
Book Reviews, Mrs. F. Briley
New Tomato, Bounty H. Mattson

Bromegrass Production In Nebraska, A. L. Frolik, L. C. Newell

Nebraska Agricultural Experiment Station: Historical Circulars

A native of the old world, from central Europe to China, bromegrass was introduced into the United States about 1884. In 1899, the Nebraska Agricultural Experiment Station reported that "all things considered, it is the most promising cultivated pasture grass for this state that has been tested on the Station farm." Early records of the Station show that considerable seed was distributed to farmers during the period from 1898 to 1902. A few of these early plantings are still in existence. Bromegrass increased in popularity in Nebraska until about 1910. Very little interest was shown in this crop during the …

Nebraska Pastures: Seeding And Management, A. L. Frolik, E. F. Frolik

Nebraska Agricultural Experiment Station: Historical Circulars

Pastures are an important source of feed in the livestock industry. Approximately 70 per cent of the income from Nebraska farms is from the sale of livestock and livestock products, and for this reason consideration should be given to the maintenance of good pastures. Poor pastures, like other poor crops, are expensive. Good grass cover is also an effective means of conserving the soil resources.

North And South Dakota Horticulture, February 1941, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 14, Number 2

The Starling, O.A. Stevens
Newslants, H.A. Graves
South Dakota Trees, E.H. Everson
Manitoba News Letter, W.R. Leslie
President's Corner, H.E. Beebe
February, W.E.H. Porter
Fruit and Vegetable Notes, F.X. Wallner
Secretary's Corner, W.A. Simmons
Questions & Answers, L.L. Davis
Book Reviews, Mrs. F. Briley

Native Midwestern Pastures: Their Origin, Composition, And Degeneration, J. E. Weaver, W. W. Hansen

Department of Agronomy and Horticulture: Faculty Publications

According to Doctor J. E. Weaver and Mr. W. W. Hansen the purpose of this bulletin is to present certain facts involved in range and pasture management by outlining in some detail the fundamental phenomenon of vegetational change upon which all rational pasture studies must be based. They maintain that the native prairie vegetation is an organic entity in close adjustment with soil and climate, which has developed gradually to its present condition of dynamic stabilization. When the prairie is grazed and trampled, various changes occur, the nature and extent of which vary somewhat directly with the degree of disturbance, …

Cypripedium Parviflorum Var. Pubescens (Willd.) Knight, Ernest L. Stover

Specimens by Name

No abstract provided.

North And South Dakota Horticulture, January 1941, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 14, Number 1

The House Sparrow, O.A. Stevens
Newslants, H.A. Graves
Continued Sale of Trees, E.H. Everson
Manitoba News Letter, W.R. Leslie
Winter Comes, W.E.H. Porter
Premium List
Book Review, Mrs. F. Briley
Fruit & Vegetable Notes, F.X. Wallner
Questions & Answers, Prof. L.L. Davis
Secretary's Corner, W.A. Simmons

Bulletin No. 295 - Comparison Of Two Methods Of Determining Wool Density, Milton A. Madsen, Ralph W. Phillips, John V. Christensen, Roy L. Henrie

UAES Bulletins

Density of the fleece is one of the primary factors determining the wool-producing capacity of the sheep. Sheepmen have attempted to evaluate density by handling the fleece. This method is not sufficiently refined for use in experimental work, and may be subject to errors and misinterpretations. For example, if two fleeces are alike in density and diameter of fibers, yet differ in length, the longer fleece will feel less dense. If, on this basis, the sheep with the fleece that appeared most dense were selected for breeding, selection would be away from the longer fleece. Any method that can be …

Noteworthy Arkansas Plants, Delzie Demaree

Journal of the Arkansas Academy of Science

The above list of fifty plants was presented before the Arkansas Academy meetings at Conway, 1939, Fayetteville, 1940, and at Arkadelphia, 1941. Eleocharis quadrangulata is the only one previously listed in an Arkansas check list, but no locality was given. It is not known by the writer from any other station than the above. The list comprises thirty-five genera, forty-eight species, twenty-six varieties, one form, and one hybrid.

Cypripedium Parviflorum Var. Pubescens (Willd.) Knight, Ernest L. Stover

Specimens by Name

No abstract provided.

Preliminary Report On The Legumes Of The Arkansas Uplands, Orrin J. Henbest

Journal of the Arkansas Academy of Science

A brief discussion is presented on the ecologic, taxonomic, and economic features of the leguminous plants of the uplands occupying the northwestern half of Arkansas. The list of 37 genera and 115 species is compiled from the author's collection and from the specimens in the herbarium of the University of Arkansas collected in this part of the state. The geographic position of this area and its variety of ecological habitats indicate that it may yield nearly 175 species of legumes.

Check List Of The Grasses Of Arkansas, Dwight M. Moore

Journal of the Arkansas Academy of Science

No abstract provided.

White-Flowered Forms Of Some Arkansas Wild Flowers, Dwight M. Moore

Journal of the Arkansas Academy of Science

No abstract provided.

Check List Of The Ligneous Flora Of Arkansas, Dwight M. Moore

Journal of the Arkansas Academy of Science

No abstract provided.

Petrified Wood Compound Of Oxides Of Iron, L. B. Roberts

Journal of the Arkansas Academy of Science

No abstract provided.

Studies On Oil Of Wintergreen Under The Microscope, L. B. Roberts, Edwin Roberts, Otto Ledford

Journal of the Arkansas Academy of Science

No abstract provided.

North And South Dakota Horticulture, December 1940, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 13, Number 12

The American Crow, O.A. Stevens
Newslants, H.A. Graves
President's Corner, H.E. Beebe
Manitoba News Letter, W.R. Leslie
Winter Nearer, W.E.H. Porter
Questions & Answers, L.L. Davis
Secretary's Corner, W.A. Simmons
Fruit & Vegetable Notes, F.X. Wallner
1940 Nursery Inspections, E.H. Everson
Book Review, Mrs. F. Briley
Index to Vol. XIII

Bulletin No. 294 - Research Aids Utah Agriculture: Biennial Report Utah Agriculture Experiment Station 1938 - 1940, R. H. Walker

UAES Bulletins

The foundation of progress in agriculture as in any other industry is research. Research has resulted in knowledge now daily applied in soil treatment, in irrigation practices, in dealing with insect pests, in breeding new varieties of plants, in animal improvement, in better farm practices, and in better land-use planning. Research undertaken by the Utah Agricultural Experiment Station has been outlined to solve specific problems facing Utah agriculture, among them the problems of irrigation, dry farming, range management and animal production. The prosperity of the state is dependent upon the success of these agricultural enterprises. Agricultural research should not, therefore, …

Bulletin No. 293 - Velvon: A New Smooth-Awned Barley, R. W. Woodward, D. C. Tingey

UAES Bulletins

Velvon, a new barley variety with smooth awns, with relatively stiff straw, and with a high degree of resistance to covered smut was developed at the Utah Agricultural Experiment Station through the cooperative efforts of the Station and the Division of Cereal Crops and Diseases, Bureau of Plant Industry, U. S. Department of Agriculture. This new variety resulted as a hybrid strain from a cross made in 1930 for the purpose of improving straw strength and the texture of awns.

North And South Dakota Horticulture, November 1940, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 13, Number 11

The Woodcock, O.A. Stevens
Newslants, H.A. Graves
President's Corner, H.E Beebe
Pre-war Denmark, S.H. Bober
Frost Comes, W.E.H. Porter
Letter from Dr. Yeager
Fruit & Vegetable Notes, F.X. Wallner
Secretary's Corner, W.A. Simmons
Book Review, Mrs. F. Briley
Manitoba News Letter, W.R. Leslie
Gov. Bushfield, C.S. Weller