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The Manuscript Works Of S. Fred Prince (1857-1951), Sarah Burke Cahalan, Jason W. Dean 2018 University of Dayton

The Manuscript Works Of S. Fred Prince (1857-1951), Sarah Burke Cahalan, Jason W. Dean

Marian Library/IMRI Faculty Publications

S. Fred Prince, a botanical illustrator and amateur scientist, is a largely unknown artist whose work on the American landscape demonstrates his eligibility to be considered in the lineage of self-taught illustrator-naturalists such as Mark Catesby and Genevieve Jones. In this article, we present a survey of extant Prince materials identified at time of writing, describing their contents and physical characteristics. Beyond this survey and description, we also provide a biographical sketch and timeline of Prince's life.


Supplemental Data, Russell J. Ingram, Foster Levy, Cindy L. Barrett, James T. Donaldson 2017 University of Georgia

Supplemental Data, Russell J. Ingram, Foster Levy, Cindy L. Barrett, James T. Donaldson

Foster Levy

No abstract provided.


Flax As An Iowa Crop, Chas. S. Reddy, L. C. Burnett 2017 Iowa State College

Flax As An Iowa Crop, Chas. S. Reddy, L. C. Burnett

Bulletin (Iowa Agricultural Experiment Station)

Among the grain crops in the United States, seed flax is exceeded in value by corn, wheat, oats and barley. It has approximately the same value as rye, rice and sorghums.

As a crop for new land, the flax seed acreage reached a peak (3,700,000 acres) in 1902, but gradually declined to little more than a million acres by 1922. As a crop for old land, taking its place in rotations, flax acreage reached a second peak equal to the first in 1930. Consumption of flax in the United States surpassed production in 1909 and for the past ...


Control Of Cherry Yellow-Leaf On Nursery Stock, George L. McNew, Donald E. Bliss 2017 Iowa State College

Control Of Cherry Yellow-Leaf On Nursery Stock, George L. Mcnew, Donald E. Bliss

Bulletin (Iowa Agricultural Experiment Station)

Yellow-leaf, caused by the fungus Coccomyces hiemalis Higgins, is the most prevalent and destructive cherry disease in Iowa, since it often causes premature defoliation of both nursery and orchard trees. Early defoliation in nursery stock results in decreased growth during the current and subsequent years, and precludes all possibility of forcing the trees into marketable size in one growing season. In the orchard, defoliation may decrease fruit bud formation and vegetative growth and increase the amount of winterkilling.

All defoliated nursery stock must be held in the nursery row a second season, and even then many of the trees must ...


Control Of Glyphosate-Resistant Common Ragweed (Ambrosia Artemisiifolia L.) In Glufosinate-Resistant Soybean [Glycine Max (L.) Merr], Ethann R. Barnes, Stevan Z. Knezevic, Peter H. Sikkema, John L. Lindquist, Amit J. Jhala 2017 University of Nebraska-Lincoln

Control Of Glyphosate-Resistant Common Ragweed (Ambrosia Artemisiifolia L.) In Glufosinate-Resistant Soybean [Glycine Max (L.) Merr], Ethann R. Barnes, Stevan Z. Knezevic, Peter H. Sikkema, John L. Lindquist, Amit J. Jhala

Agronomy & Horticulture -- Faculty Publications

Common ragweed emerges early in the season in Nebraska, USA and is competitive with soybean; therefore, preplant herbicides are important for effective control. Glyphosate has been used as a preplant control option; however, confirmation of glyphosate-resistant (GR) common ragweed in Nebraska necessitates evaluating other herbicide options. The objectives of this study were to (1) evaluate the efficacy of preplant (PP) herbicides followed by (fb) glufosinate alone or in tank-mixture with imazethapyr, acetochlor, or S-metolachlor applied post-emergence (POST) for control of GR common ragweed in glufosinate-resistant soybean; (2) their effect on common ragweed density, biomass, and soybean yield; and (3) the ...


A Screen For Arabidopsis Thalianamutants With Altered Susceptibility To Heterodera Schachtii, T. J. Baum, M. J. E. Wubben II, K. A. Hardy, H. Su, S. R. Rodermel 2017 Iowa State University

A Screen For Arabidopsis Thalianamutants With Altered Susceptibility To Heterodera Schachtii, T. J. Baum, M. J. E. Wubben Ii, K. A. Hardy, H. Su, S. R. Rodermel

Thomas Baum

Genetic approaches are a powerful means to elucidate plant-pathogen interactions. An in vitro screening protocol was developed to identify Arabidopsis thaliana mutants with altered susceptibility to Heterodera schachtii, the sugar beet cyst nematode. In an initial screen of approximately 5,200 ethyl methanesulfonate-generated mutant plants, two stable mutations were identified. Both mutant lines were backcrossed and were found to harbor single recessive mutant alleles. Mutant line 2-4-6 shows an approximately two-fold increase in sedentary and developing nematodes, while mutant line 10-5-2 exhibits a significant decrease in susceptibility that manifests itself only after nematodes become sedentary. Analyses of progeny from crosses ...


Cabbage Yellows, Caused By Fusarium Conglutinans, In Iowa, I. E. Melhus, A. T. Erwin, Frank Van Haltern 2017 Iowa State College

Cabbage Yellows, Caused By Fusarium Conglutinans, In Iowa, I. E. Melhus, A. T. Erwin, Frank Van Haltern

Bulletin (Iowa Agricultural Experiment Station)

Cabbage yellows caused by Fusarium conglutinans is widely distributed in Iowa. It probably was introduced into the state just previous to 1910 on cabbage transplants shipped from the southern states. The organism causing cabbage yellows is the chief limiting factor in cabbage production in the Muscatine Island section and contiguous territory on the Iowa side of the Mississippi River. The yellows organism may live in the soil for long periods of time, at least 11 years, and still be destructive to a cabbage crop. Cabbage, cauliflower, Chinese cabbage, kohlrabi and brussels sprouts are known to be hosts of this organism ...


Iowa Seed Analyses, 1910-1913, L. H. Pammel, Charlotte M. King 2017 Iowa State College

Iowa Seed Analyses, 1910-1913, L. H. Pammel, Charlotte M. King

Bulletin (Iowa Agricultural Experiment Station)

The quality of seeds sold in Iowa has improved greatly since the investigations of the Iowa Agricultural Experiment Station disclosed that much of the clover, alfalfa and timothy seed sold in the state lacked in vitality and purity. Following the publication of Bulletin No. 88, “The Vitality, Adulteration and Impurities of Glover, Alfalfa and Timothy,” the state legislature, in 1908, passed a pure seed law, which became generally known as the “Iowa Seed Law,” and has been incorporated into somewhat similar laws in other states. Under that law seed conditions have become better. In the tests made by the botanical ...


The Effect Of City Smoke On Vegetation, A. L. Bakke 2017 Iowa State College

The Effect Of City Smoke On Vegetation, A. L. Bakke

Bulletin (Iowa Agricultural Experiment Station)

A study of the smoke problem in Des Moines establishes clearly that the smoke and gases emitted by its many power and heating plant chimneys have a harmful effect upon trees, shrubs and other vegetation. To a large extent, plants serve as good indicators of smoke contamination in a community.

In the immediate neighborhood of the smoke emitting establishments in Des Moines, only a few of the most resistant plants grow, all others being eliminated, A little farther away, where the smoke and gases are not so dense, some additional plants are found and so as the distance increases the ...


Four New Fungous Diseases In Iowa, L. H. Pammel, Charlotte M. King 2017 Iowa State College

Four New Fungous Diseases In Iowa, L. H. Pammel, Charlotte M. King

Bulletin (Iowa Agricultural Experiment Station)

During the past two seasons several important destructive fungous diseases of cultivated plants have made their appearance in Iowa, namely: Timothy rust, alfalfa rust, apple canker, and onion smut.

About the middle of July, 1910, there was an abundance of timothy rust in a meadow in the vicinity of Ames; subsequently it was reported from other localities in the state. It was again noticed after the September rains in 1911, especially in the timothy breeding plots.


Two Barley Blights, With Comparison Of Species Of Helminthosporium Upon Cereals, L. H. Pammel, Charlotte M. King, A. L. Bakke 2017 Iowa State College

Two Barley Blights, With Comparison Of Species Of Helminthosporium Upon Cereals, L. H. Pammel, Charlotte M. King, A. L. Bakke

Bulletin (Iowa Agricultural Experiment Station)

Early in June, 1909, the yellow-leaf disease (H . gramineum) was prevalent in some fields of barley at Ames. It appeared just before heading of the grain, and destroyed .50 of one per cent of the barley.

This disease was first recorded* at Ames in 1890. It is characterized by longitudinal yellowish-green spots extending in parallel rows upon the leaves and sheaths. The yellowish-green areas are strongly contrasted to the green of the leaves. All the culms of a single stool are affected, and the diseased plants die prematurely. When the spots of the fungus begin to appear the plant ceases ...


Notes On Eradication Of Weeds, With Experiments Made In 1907 And 1908, L. H. Pammel, Charlotte M. King 2017 Iowa State College

Notes On Eradication Of Weeds, With Experiments Made In 1907 And 1908, L. H. Pammel, Charlotte M. King

Bulletin (Iowa Agricultural Experiment Station)

The subject of weeds continues to interest the farmers of the state, as much, perhaps, as any problem connected with the farm. An abundance of weeds in a crop seriously interferes with production, not only by shading and crowding the agricultural crop, but by removing useful and necessary constituents from the soil. We receive annually many inquiries from farmers who desire information about the character of weeds, and the best methods of dealing with them. The results of some experiments conducted by the Botanical Section to determine the value of several means of weed extermination are presented in this bulletin ...


Some Plant Diseases Of 1908, L. H. Pammel, Charlotte M. King 2017 Iowa State College

Some Plant Diseases Of 1908, L. H. Pammel, Charlotte M. King

Bulletin (Iowa Agricultural Experiment Station)

The smut occurs in the smaller spikelets and completely destroys the ovaries, leaving only the outer wall. At maturity the ovary becomes considerably enlarged and the lower part is much darker in color. The wall of the spikelet breaks readily, exposing the spores to the air. The interior is filled with a mass of brown spores which are smooth, spherical to oblong, somewhat angular, from 6 to 8 u broad by 10 to 12 u long, but varying considerably in shape and size. These spores germinate readily in nutrient or lactose, or cane sugar solutions, or sterilized rain water. The ...


The Vitality, Adulteration And Impurities Of Clover, Alfalfa And Timothy Seed For Sale In Iowa In 1906., L. H. Pammel, R. E. Buchanan, Charlotte M. King 2017 Iowa State College

The Vitality, Adulteration And Impurities Of Clover, Alfalfa And Timothy Seed For Sale In Iowa In 1906., L. H. Pammel, R. E. Buchanan, Charlotte M. King

Bulletin (Iowa Agricultural Experiment Station)

Clover and timothy are the most important hay crops grown in Iowa. The census of 1905 gives the area devoted to the growing of red clover in the state as 237,309 acres; of timothy as 3,642,424 acres. These figures do not Include the area devoted to minor clover crops such as alsike and white clover. It may be said, however, that only a small area in the state is devoted to the growing of the former. The white clover crop covers a much larger area than any other of the leguminous plants. It is, however, seldom sown ...


Cedar Apple Fungi And Apple Rust In Iowa, L. H. Pammel 2017 Iowa State College

Cedar Apple Fungi And Apple Rust In Iowa, L. H. Pammel

Bulletin (Iowa Agricultural Experiment Station)

The subject of apple rust in this state has assumed considerable importance during the past season so that a treatment of the species of apple rust in Iowa will not be out of place.

A few years ago the writer of this bulletin prepared for the Division of Vegetable Physiology and Pathology, a paper on these rusts as affecting forest trees of the west. With the consent of Dr. Albert F. Woods, Chief of the Division, I present that portion of the above paper which deals with the apple rusts. I wish especially to express my thanks to Mrs, Patterson ...


Quack And Wheat Grasses., L. H. Pammel 2017 Iowa State College

Quack And Wheat Grasses., L. H. Pammel

Bulletin (Iowa Agricultural Experiment Station)

The quack and wheat grasses of Iowa, eastern North America, and the Rocky Mountains are important, not only as weeds, but as forage plants. One of the most valuable of these is the western wheat grass, ranging from the eastern slopes of the Rockies into western Iowa. Besides this species there are several others more or less common in the western and northwestern portion in the state. Some of these are considered valuable as forage plants, yet during the past season many complaints have been made of the abundance and weedy nature of the quack grasses in North America. It ...


Some Troublesome Weeds Of The Mustard Family., L. H. Pammel 2017 Iowa State College

Some Troublesome Weeds Of The Mustard Family., L. H. Pammel

Bulletin (Iowa Agricultural Experiment Station)

The mustards constitute a family well marked in many ways. So much so that most people readily recognize mustards. The Cruciferae, as the mustards are technically known, are widely distributed but occur chiefly in temperate and northern regions. They are largely represented in the Mediterranean region. As understood by different authors, there are from 1200 to 2000 species.


Seed Analyses, 1921 To 1924, C. M. King 2017 Iowa State College

Seed Analyses, 1921 To 1924, C. M. King

Bulletin (Iowa Agricultural Experiment Station)

Demand for good seed has increased during recent years, as the result of general education in seed selection and because of legislative measures which look toward better market regulation. The large number of samples sent in for test by farmers and dealers, shows an active interest in better market standards.

The following pages present the findings of analyses of about 5,000 samples of alfalfa, clover and grass seeds in 1921 to 1924. The results indicate the need of continued effective seed inspection.


Seed Analyses Of 1913 To 1921, L. H. Pammel, C. M. King 2017 Iowa State College

Seed Analyses Of 1913 To 1921, L. H. Pammel, C. M. King

Bulletin (Iowa Agricultural Experiment Station)

Both sellers and users of farm seeds in Iowa are alert to the menace that lies in weed seeds and other impurities and are striving to comply with the state seed laws and to prevent the introduction and spread of injurious weeds. That is indicated in the continually increasing number of seed samples submitted for testing to the Botany Section of the Iowa Agricultural Experiment Station. In the eight-year period ending June 30, 1921, the average number of samples tested was 1,060 annually, as against less than half that number in the previous corresponding period.


Some Weeds Of Iowa, L. H. Pammel 2017 Iowa State College

Some Weeds Of Iowa, L. H. Pammel

Bulletin (Iowa Agricultural Experiment Station)

During the year the Department of Botany receives a great many requests for information on the subject of weeds. These requests come from all parts of the state. Many different kinds of plants are sent in. Some of course, more frequently than others. The writer at different times has given accounts of weeds in the Experiment Station Bulletins. Most of these bulletins are now out of print. It seems advisable, therefore, to re-issue a limited edition to supply the demand for information on this topic. In addition to this we have given a somewhat comprehensive account of the migration of ...


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