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6374 full-text articles. Page 1 of 64.

Environmental Influences On Nectar Secretion, Leslie Alva Kenoyer 2017 Iowa State College

Environmental Influences On Nectar Secretion, Leslie Alva Kenoyer

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

This study was undertaken to summarize and supplement existing knowledge of the factors which stimulate or retard the secretion of nectar. The work was carried out under the direction of the botany section of the Iowa Agricultural State Experiment Station in cooperation with the chemistry section, being done mostly at Ames, Iowa, from June, 1914, to June, 1916.


Studies On A Fusarium Disease Of Corn And Sorghum (Preliminary), L. H. Pammel, C. M. King, J. L. Seal 2017 Iowa State College

Studies On A Fusarium Disease Of Corn And Sorghum (Preliminary), L. H. Pammel, C. M. King, J. L. Seal

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

A new fusarium disease of corn made its appearance in Iowa, during the season of 1914, seriously injuring the corn crop 01' the state and causing a loss estimated at more than $15,000,000. It was not confined to Iowa, for reports of a similar disease were sent to the Iowa Agricultural Experiment station by H. B. Clark of Blair, Neb., who found an abundance of it there and elsewhere in that state. One of the authors observed the fusarium that same season in western I Illinois and northern Missouri and Dr. E. C. Stakman reported that it occurred ...


Grasses Endemic To A Single State In The Conterminous United States, James P. Smith Jr 2017 Humboldt State University

Grasses Endemic To A Single State In The Conterminous United States, James P. Smith Jr

Botanical Studies

No abstract provided.


Grass Floras, Manuals, And Checklist, James P. Smith Jr 2017 Humboldt State University

Grass Floras, Manuals, And Checklist, James P. Smith Jr

Botanical Studies

No abstract provided.


Psychoactive Plants: A Bibliography, James P. Smith Jr 2017 Humboldt State University

Psychoactive Plants: A Bibliography, James P. Smith Jr

Botanical Studies

No abstract provided.


Useful Plants – Ethnobotanical Studies: A Bibliography, James P. Smith Jr 2017 Humboldt State University

Useful Plants – Ethnobotanical Studies: A Bibliography, James P. Smith Jr

Botanical Studies

No abstract provided.


Rare, Endangered, And Threatened Grasses Of The Conterminous United States, James P. Smith Jr 2017 Humboldt State University

Rare, Endangered, And Threatened Grasses Of The Conterminous United States, James P. Smith Jr

Botanical Studies

No abstract provided.


Statewide And Regional California Floras: A Chronology, James P. Smith Jr 2017 Humboldt State University

Statewide And Regional California Floras: A Chronology, James P. Smith Jr

Botanical Studies

No abstract provided.


Medical Plants - General References, James P. Smith Jr 2017 Humboldt State University

Medical Plants - General References, James P. Smith Jr

Botanical Studies

No abstract provided.


Acer Rubrum Wats., Elisabet Ore 2017 Eastern Illinois University

Acer Rubrum Wats., Elisabet Ore

Specimens by Name

No abstract provided.


Acer Pennsylvanicum Du Roi, G. D. H. 2017 Eastern Illinois University

Acer Pennsylvanicum Du Roi, G. D. H.

Specimens by Name

No abstract provided.


Acer Saccharinum L., Cris Thomas 2017 Eastern Illinois University

Acer Saccharinum L., Cris Thomas

Specimens by Name

No abstract provided.


Acer Saccharinum L., Cris Thomas 2017 Eastern Illinois University

Acer Saccharinum L., Cris Thomas

Specimens by Name

No abstract provided.


Acer Saccharinum L., Paul B. Marcum 2017 Eastern Illinois University

Acer Saccharinum L., Paul B. Marcum

Specimens by Name

No abstract provided.


Grasses And Other Forage Plants, A. A. Crozier 2017 Iowa Agricultural College

Grasses And Other Forage Plants, A. A. Crozier

Bulletin (Iowa Agricultural Experiment Station)

About seventy-live kinds of grasses and other forage plants were sown last spring. A considerable number of these were in one-eighth-acre plots, with a thin seeding of rye for protection. The rye proved to be the winter, instead of the spring variety, as was intended, and it grew so rank as to cover the ground and greatly injure the grasses. It was cut and removed July 7, but the weather following was so hot and dry that some of the kinds failed to recover. In addition to this, a severe attack of chinch bugs occurred in the* latter part of ...


Relation Of Moisture To Seed Production In Alfalfa, J. N. Martin 2017 Iowa State College

Relation Of Moisture To Seed Production In Alfalfa, J. N. Martin

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

As a result of the experiments carried on to determine the effect of moisture upon seed production in alfalfa, the following conclusions have been drawn, based upon the work of the experiments as presented in this bulletin:

1. The setting of seed pods in alfalfa, (Medicago sativa), is dependent upon the proper functioning of the pollen.

2. Germination of the pollen depends upon a proper supply (l! moisture. If the water supply is either above or below a certain requirement, the pollen does not germinate.

3. The water requirement for germination of the pollen depends upon a certain ratio between ...


Darwin Core Archive File, Stover-Ebinger Herbarium, Eastern Illinois University 2017 Eastern Illinois University

Darwin Core Archive File, Stover-Ebinger Herbarium, Eastern Illinois University

Darwin Core Archive Download

ZIP file contains occurrences.csv, identivications.csv, and images.csv. The meta.xml document describes the content. Fields within the occurrences.csv file are defined by the Darwin Core exchange standard.


Myrica Pensylvanica Mirb., Elisabet Ore 2017 Eastern Illinois University

Myrica Pensylvanica Mirb., Elisabet Ore

Specimens by Name

No abstract provided.


Poisonous Vascular Plants: A Bibliography Of General References, James P. Smith Jr 2017 Humboldt State University

Poisonous Vascular Plants: A Bibliography Of General References, James P. Smith Jr

Botanical Studies

No abstract provided.


The Scientific Names Of Plants, James P. Smith Jr 2017 Humboldt State University

The Scientific Names Of Plants, James P. Smith Jr

Botanical Studies

No abstract provided.


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