Life Sciences Commons^™

Tertiary Coniferous Woods Of Western North America, George F. Beck

All Faculty Scholarship for the College of the Sciences

Almost four decades have elapsed since Platen (1908), the German paleobotanist, published his report upon the fossil woods of the western United States. Since then no over-all treatment of these materials has been attempted. although Platen overlooked the Pacific Northwest with its abundance of Tertiary petrified woods. The purpose of this paper is to bring knowledge of the western coniferous woods of the Tertiary up to date. In this effort the writer recognizes that much of this information has been accumulated incidentally in the study of the Russell Petrified Forest series of central Washington, and that it is not as …

North And South Dakota Horticulture, July 1945, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 18, Number 7

Connecticut Warbler, O.A. Stevens
Garden Notes, W.E.H. Porter
Newslants, H.A. Graves
Manitoba News Letter, W.R. Leslie
Garden Club Gleanings, Mrs. G.M. Jorgensen
Mexican Bean Beetle, H.R. Woodward
Beebe's Philosophy, H.E. Beebe
Iris Gleanings, Rev. E.L. Jackson
Fruit & Vegetable Notes, F.X. Wallner
Blizzard Belt Notes, Mrs. G.M. Jorgensen
The Iris, J.W. Fox
Secretary's Corner, W.A. Simmons
Canned Vegetable Supply, Dr. S.A. McCrory

A Seven-Year Quantitative Study Of Succession In Grassland, J. E. Weaver, W. E. Bruner

Department of Agronomy and Horticulture: Faculty Publications

The study of plant succession has contributed more than any other single line of investigation to a deeper insight into the nature of vegetation. Earlier studies of succession, especially in grassland, were largely those of the primary sere. But with the utilization of the prairies for grazing, and the abandonment of submarginal land after a short period of cropping, numerous investigations of secondary successions were made. The earlier studies have been discussed by Clements (1916) in "Plant Succession." Sampson's plant succession in relation to range management appeared in 1919. Many of the more recent investigations of subseres in grassland and …

Extent And Longevity Of The Seminal Roots Of Certain Grasses, J. E. Weaver, Ellen Zink

Department of Agronomy and Horticulture: Faculty Publications

Grasses possess two distinct root systems. The primary or seminal root system begins development immediately upon the germination of the seed and consists of one to several main roots and their branches, the number varying with the species. The young plant is entirely dependent upon this primary root system for water and soil nutrients. Later, especially during the period of tiller production, a secondary or nodal root system develops from the lower nodes of the parent culm and from the tillers. The seminal roots are often designated as temporary in general texts and even in special books on grasses. Hitchcock …

Effects Of Ddt And Other Insecticides On Several Species Of Potato Insects, Roscoe E. Hill

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Field and laboratory tests conducted in Nebraska showed DDT to be more effective than any other material yet tested against potato insect pests. Records were obtained on tuber flea beetles, Epitrix tuberis, potato psyllids, Paratrioza cockerelli, potato leafhoppers, Empoasca fabae, green peach aphids, Myzus persicae, Lygus elisus, Chlamydatus associatus, Aceratagallia uhleri and Macrosteles divisus. DDT remained effective against potato psyllids and potato leafhoppers under field conditions for a relatively long period of time. Populations of certain beneficial insects, such as Nabis spp., Orius spp. and lady beetles were found to be significantly reduced …

North And South Dakota Horticulture, June 1945, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 18, Number 6

The Mourning Warbler, O.A. Stevens
Manitoba News Letter, W.R. Leslie
Newslants, H.A. Graves
Garden Notes, W.E.H. Porter
Garden Club Gleanings, Mrs. G.M. Jorgensen
Notes on Fungi, No. 2, H.R. Woodward
Beebe's Philosophy, H.E. Beebe
Fruit and Vegetable Notes, F.X. Wallner
Book Review, Mrs. Morris Harter
Blizzard Belt Notes, Mrs. G.M. Jorgensen
Secretary's Corner, W.A. Simmons
New Hampshire Horticulture, Dr. A.F. Yeager
Bee Notes

The Stomatal Behvior Of Begonias And Its Relationship To Infection By Xanthomonas Begoniae, Eugene David Kitzke

Bachelors’ Theses

A leaf spot disease of begonias caused by a bacterium has been under observation and study at Marquette University for nearly a year. It brings up many interesting questions which need to be an­swered before the investigators can fully evaluate and determine correctly the relationships of this organism to the Begoniaceae. One of the questions, which has come up, was the problem of the mode of entrance. It is the purpose of this paper to deter­ mine the relation of the stomata to infection.

Bulletin No. 318 - An Economic Analysis Of Turkey Production In Utah, Dee A. Broadbent, W. Preston Thomas, George T. Blanch

UAES Bulletins

The production of turkeys for market by farmers in Utah has increased rapidly since 1935, and in 1944 was the highest in the history of the state. Although turkeys are produced on a relatively few farms , the enterprise is an important source of the state's agricultural income. In 1942 and 1943, the cash income from sales of turkeys was almost six million dollars or equivalent to 5 percent of the total cash income of the state.

In addition to the sale of turkeys, this new enterprise supports, fully or in part, other industries of the state. The processing plants, …

Bulletin No. 319 - Cherry Rootstocks, Francis M. Coe

UAES Bulletins

This paper reviews the history and status of the cherry rootstocks problem in Utah and the United States and reports 14 years' results from a sweet cherry rootstocks test orchard on open porous soil at Farmington, Utah.

Although a majority of authorities favor or recommend the mazzard root for sweet cherries, the mahaleb is also widely used and preferred by many nurserymen and growers. Many authorities condemn mahaleb stocks as being dwarfing and short lived. Two orchard tests on heavy soils in the Atlantic states decisively favor mazzard.

In the Utah test orchard, the trees on mahaleb proved to be …

North And South Dakota Horticulture, May 1945, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 18, Number 5

The Wood Duck, O.A. Stevens
Newslants, H.A. Graves
Manitoba News Letter, W.R. Leslie
Garden Notes, W.E.H. Porter
Garden Club Gleanings, Mrs. G.M. Jorgensen
Notes on Fungi, H.R. Woodward
To Rid Gardens of Ants
Fruit and Vegetable Notes, F.X. Wallner
Blizzard Belt Gardener, Mrs. G.M. Jorgensen
Potatoes, W.R. Leslie
Secretary's Corner, W.A. Simmons
Nasturtiums, Mrs. F.J. Ryan

The North American Species Of Smilacina, Desma H. Galway

Theses and Dissertations

This paper is the result of a taxonomic study of the species of the genus Smilacina occurring naturally in North America north of Mexico. In the past it has been difficult to make satisfactory determinations of members of this genus from existing manuals, especially among western forms. West of the great plains the great diversity in environmental conditions has given rise to a diversity in form of the species that are widely distributed. Many of these forms have been given specific or varietal names recently, and as no comprehensive work on the genus has been done since most of these …

Charcoal Rot Of Corn And Sorghum, J. E. Livingston

Nebraska Agricultural Experiment Station: Historical Research Bulletins

In Nebraska, the charcoal rot caused considerable damage to the 1940 grain sorghum crop in the south central counties, and the following year it caused serious lodging and reduction of yield in both corn and sorghum in all sections of the state. Field observations indicated that some varieties of sorghum were damaged less than others; thus it appeared desirable to test thoroughly all varieties to determine whether any were sufficiently resistant to be recommended for field planting or to be used in a breeding program. It seemed desirable to study the influence of soil environment on infection and the development …

North And South Dakota Horticulture, April 1945, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 18, Number 4

Yellow-bellied Sapsucker, O.A. Stevens
Garden Notes, W.E.H. Porter
Manitoba News Letter, W.R. Leslie
Newslants, H.A. Graves
Garden Club Gleanings, Mrs. G.M. Jorgensen
Tree and Shrub Transplanting, H.R. Woodward
Fruit and Vegetable Notes, F.X. Wallner
Iris Gleanings, Rev. E.L. Jackson
More About Rose Bugs, A.L. Truax
Blizzard Belt Garden Notes, Mrs. G.M. Jorgensen
Secretary's Corner, W.A. Simmons
Redwoods Aid Gardens
Book Reviews, Mrs. Morris Harter

North And South Dakota Horticulture, March 1945, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 18, Number 3

The Rusty Blackbird, O.A. Stevens
Garden Notes, W.E.H. Porter
Newslants, H.A. Graves
Manitoba News Letter, W.R. Leslie
Garden Club Gleanings, Mrs. G.M. Jorgensen
Trees to Plant, F.I. Rockwell
Let's Not Overlook the Hackberry, H.R. Woodward
Fruit and Vegetable Notes, F.X. Wallner
Blizzard Belt Garden Notes, Mrs. G.M. Jorgensen
Secretary's Corner, W.A. Simmons
Premium List
New Hampshire Horticulture, Dr. A.F. Yeager

Bulletin No. 317 - Range Lands Of Utah County And Their Utilization, L. A. Stoddart

UAES Bulletins

Utah County, comprising about 1,394,760 acres, lies in the north central part of Utah immediately west of the precipitous Wasatch Mountains. These mountains, which occupy about the eastern half of the county, vary in elevation from 4,700 feet at the bench lands to 9,000 and 10,000 feet. Extreme elevations of 12,000 feet are found on the highest peaks. The western half of the county, although broken by small mountain ranges, is much more level, lower in elevation, and more arid. Whereas the mountainous eastern parts of the county are marked by higher precipitation and, consequently by relatively dense vegetation, mostly …

Bulletin No. 316 - Marketing Fruits And Vegetables In Utah, W. Preston Thomas, George T. Blanch

UAES Bulletins

During the period from 1920 to 1941 the fruit industry in Utah and other areas or the west went through a period of adjustment. Previous to and during World War I, growers received high prices for fruit which resulted in increased production. However, following the sudden drop in prices of 1920, fruit growers had a hard time to market the large tonnage produced. Returns were low. During this period keen competition for the sale of fruits developed between individual growers and various producing areas. Although the problems of adjustment were severe in most fruit areas of the west, the marketing …

Potato Ring Rot Control And Reports Of Progress, Disease Control Research, G.H. Starr, W.F. Buckhholtz

Agricultural Experiment Station Plant Pathology Pamphlets (1942-1962)

This document contains:
1. Suggestions for growing ring-rot free potatoes.
2. The present status of bacterial ring-rot in Canada.
3. Degree of scab and late blight infection on named varieties of potatoes at Brookings, 1942 to 1944.
4. Estimated scab lesions per tuber on potatoes grown in plots with fertilizer additions, Codington and Clark counties, 1944.

North And South Dakota Horticulture, February 1945, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 18, Number 2

Three-toed Woodpeckers, O.A. Stevens
Newslants, H.A. Graves
Essentials of Nature Building, H.R. Woodward
Fruit and Vegetable Notes, F.X. Wallner
Garden Club Gleanings, Mrs. G.M. Jorgensen
Manitoba News Letter, W.R. Leslie
Garden Notes, W.E.H. Porter
Eugene Flower Show, H.J. Donaldson
Beebe's Philosophy, H.E. Beebe
Blizzard Belt Gardener, Mrs. G.M. Jorgensen
Secretary's Corner, W.A. Simmons
Iris Jottings, Rev. E.L. Jackson
Beekeepers Meet at Fargo, Dr. J.A. Munro

Nyssa Woods Of The Pacific-Northwest Tertiary, George F. Beck

All Faculty Scholarship for the College of the Sciences

The nyssa gums are one of the modern genera of trees most certainly present among the petrified woods and forests of the Pacific Northwest. Almost every collection from the mid-Tertiary of this region contains a few specimens of typical tupelo or sour gum. These are fine-grained woods which to the unaided eye may be mistaken for conifers.

Yields And Consumption Of Forage In Three Pasture-Types: An Ecological Analysis, R. W. Darland, J. E. Weaver

Department of Agronomy and Horticulture: Faculty Publications

Native pastures in eastern Nebraska and adjacent states have undergone profound changes as a result of drought. Bluestems (Andropogon) and associated grasses have been thinned and weakened, although recovery has been marked since 1941. In many pastures they were replaced by western wheat grass (Agropyron smithii) or other invading species. In nearly all, wheat grass now occurs in considerable abundance. Kentucky bluegrass (Paa pratensis), into which many overgrazed native pastures had degenerated, was almost completely killed by the drought, or greatly damaged as in western Iowa. Despite these widespread changes, few studies have been made on the relative yields, preferences …

Bulletin No. 315 - Biennial Report, 1942-1944

UAES Bulletins

The war years have made new demands on Station personnel and facilities. With fewer staff members and less adequate equipment the Station has not only carried on the regular project work, but the research program has been expanded, and numerous activities resulting from the emergency have been assumed.

The Station has taken a leading place in the victory food production program. Each year it has assumed the lead in a study of the wartime agricultural production capacity of the state and desirable crop and livestock adjustments studying all the agricultural assets and the ability to produce various crops.

As a …

Controlling The Ph Of Cultures Of Penicillium Notatum Through Its Carbon And Nitrogen Nutrition, Albert E. Dimond, George L. Peltier

Department of Plant Pathology: Faculty Publications

A survey of published material reveals relatively little information concerning the nutritional physiology of Penicillium notatum Westl. on synthetic media. Metabolism studies of P. notatum on various media have appeared to be incidental to the more pressing problem of producing penicillin quickly and in quantity. Fleming (1929) originally used a nutrient broth non-synthetic in nature. The Oxford group (Abraham et al., 1941) then adopted a modification of the so-called Czapek-Dox synthetic medium which supplies nitrogen as sodium nitrate and glucose as carbohydrate. Hobby, Meyer, and Chaffee (1942) suggested that brown sugar be substituted for glucose in this nutrient, with …

North And South Dakota Horticulture, December 1944, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 17, Number 12

The Black Duck, O.A. Stevens
Newslants, H.A. Graves
A Trip Through Lamar Valley, H.R. Woodward
Garden Notes, W.E.H. Porter
Garden Club Gleanings, Mrs. G.M. Jorgensen
Manitoba News Letter, W.R. Leslie
Blizzard Belt Gardener, Mrs. G.M. Jorgensen
Letter From Oregon, H.J. Donaldson
Color in the Garden, Dr. L.C. Snyder
Book Review, Mrs. M. Harter
Fruit and Vegetable Notes, F.X. Wallner
Protecting Trees From Rodents, Dr. S.A. McCrory
Secretary's Corner, W.A. Simmons
Index

The Scottsbluff Pinto Bean, J. H. Jensen

Nebraska Agricultural Experiment Station: Historical Circulars

Scottsbluff Pinto is the name of a new variety of pinto field bean being released this year by the Nebraska Agricultural Experiment Station. The new bean variety is a selection from a cross between Great Northern and the common pinto bean. In a bean-breeding program conducted for the past several years by the Department of Plant Pathology, attempts have been made to obtain improved varieties of both field and garden beans for Nebraska. Although the breeding program was primarily concerned with the development of disease-resistant varieties, it was observed that Scottsbluff Pinto, possessing no notable disease resistance, has been outstanding …

North And South Dakota Horticulture, November 1944, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 17, Number 11

The Blue-headed Vireo, O.A. Stevens
Garden Notes, W.E.H. Porter
Newslants, H.A. Graves
Nature Trails, H.R. Woodward
Garden Club Gleanings, Mrs. G.M. Jorgensen
Manitoba News Letter, W.R. Leslie
Chrysanthemums, Dr. L.C. Snyder
Blizzard Belt Gardener, Mrs. G.M. Jorgensen
Secretary's Corner, W.A. Simmons
Our Westward Trip, H.J. Donaldson
Fruit Growing in South Dakota, Dr. S.A. McCrory
Book Reviews, Mrs. M. Harter

Ancient Maples Of The Central Washington Region, George F. Beck

All Faculty Scholarship for the College of the Sciences

When I began work on the petrified logs of the general Vantage area some 13 years ago, it became apparent at once that maple-like woods are commonplace in the main (Vantage) raft forest and slightly less abundant in two rooted units of the Yakima Canyon. So widely do these woods range throughout the structural variations found in modern maples that little success has attended the efforts to assign them to nominal species. The extremes can readily be established but few hints exist as to the boundaries between them.

North And South Dakota Horticulture, October 1944, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 17, Number 10

The Yellow-throated Vireo, O.A. Stevens
Newslants, H.A. Graves
Garden Club Gleanings, Mrs. G.M. Jorgensen
Garden Notes, W.E.H. Porter
Balance of Nature, H.R. Woodward
Manitoba News Letter, W.R. Leslie
Blizzard Belt Garden Notes, Mrs. G.M. Jorgensen
Fruit Breeding, Dr. H.L. Lantz
Secretary's Corner, W.A. Simmons
U.S. Dept. of Agri. Release
Book Review, Mrs. M. Harter
Fruit and Vegetable Notes, F.X. Wallner
The Sumac, Dr. L.C. Snyder

Seeding Grass On Deteriorated Aspen Range, A. Perry Plummer, George Stewart

Aspen Bibliography

The herbaceous undercover on much of the aspen range in the Intermountain region is badly deteriorated. These areas, naturally highly productive, when revegetated can contribute greatly towards a much needed supply of range forage. One of the major obstacles to successful seeding has been the difficulty of getting the seeds covered with soil since both standing and fallen trees interfere with the use of drills, harrows, or other machinery. In the search for methods to overcome this difficulty, it was found that for open aspen stands the covering of seeds is unnecessary when the right precautions are taken in other …

Nature And Degree Of Recovery Of Grassland From The Great Drought Of 1933 To 1940, F. W. Albertson, J. E. Weaver

Department of Agronomy and Horticulture: Faculty Publications

For eight years drought had prevailed in the mid- continental grasslands. The true prairie west of Minnesota, Iowa, and Missouri had been woefully depleted. Mixed prairie farther westward to the Rocky Mountains had been nearly or entirely destroyed. But now the parched soil was wet once more, wet to a depth of several feet. The hot dry air was now warm and moist. The terrible dust storms had ceased. A changed environment had come at last, for this was the end of the long period of drought. Thus, in 1941 the long delayed recovery of vegetation began. The nature of …

North And South Dakota Horticulture, September 1944, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 17, Number 9

The Warbling Vireo, O.A. Stevens
Newslants, H.A. Graves
Garden Club Gleanings, Mrs. G.M. Jorgensen
Garden Notes, W.E.H. Porter
Beebe's Philosophy, H.E. Beebe
Manitoba News Letter, W.R. Leslie
Fruit and Vegetable Notes, F.X. Wallner
A Foray to the North, Dr. L.C. Snyder
Experiments at the Butler Ranch, H.R. Woodward
Secretary's Corner, W.A. Simmons
Fruit Breeding, Dr. H.L. Lantz