Vitex Agnus-Castus L.,
2015
Eastern Illinois University
Vitex Trifolia L.,
2015
Eastern Illinois University
Vitex Lucens Kirk,
2015
Eastern Illinois University
Verbena Officinalis L.,
2015
Eastern Illinois University
Verbena Urticifolia L.,
2015
Eastern Illinois University
Verbena Urticifolia L.,
2015
Eastern Illinois University
Verbena Stricta Vent.,
2015
Eastern Illinois University
Verbena Hastata L.,
2015
Eastern Illinois University
Verbena Hastata L.,
2015
Eastern Illinois University
Phyla Strigulosa (Mart. & Galeotti) Moldenke,
2015
Eastern Illinois University
Phyla Strigulosa (Mart. & Galeotti) Moldenke, Wayne M. Pichon
Specimens by Name
No abstract provided.
Verbena Bracteata Lag. & Rodr.,
2015
Eastern Illinois University
Callicarpa Americana Lour.,
2015
Eastern Illinois University
Soybean Yield And Nodulation Response To Crop History And Inoculation,
2015
University of Nebraska-Lincoln
Soybean Yield And Nodulation Response To Crop History And Inoculation, Stephen Mason, Tomie Galusha, Zaher Kmail
Department of Agronomy and Horticulture: Faculty Publications
Soybean [Glycine max (L.) Merr.] inoculation was imposed on a long-term continuous grain sorghum [Sorghum bicolor (L.) Moench] and soybean cropping systems study with and without manure application at Mead, NE. The objective was to determine the influence of 28-yr history of continuous grain sorghum and soybean production, inoculation, and manure on soybean yield and nodulation. Average 2-yr soybean grain yield was 0.5 Mg ha–1 greater on plots with continuous grain sorghum crop history rather than soybean history, even after this history was broken by 2-yr crop rotation with grain sorghum in the 2 yr previous to …
Soil Moisture Affects Growing-Season Wildfire
Size In The Southern Great Plains,
2015
Oklahoma State University
Soil Moisture Affects Growing-Season Wildfire Size In The Southern Great Plains, Erik S. Krueger, Tyson E. Ochsner, David M. Engle, J. D. Carlson, Dirac L. Twidwell, Samuel D. Fuhlendorf
Department of Agronomy and Horticulture: Faculty Publications
The increasing availability of soil moisture data presents an opportunity for its use in wildfire danger assessments, but research regarding the influence of soil moisture on wildfires is scarce. Our objective was to identify relationships between soil moisture and wildfire size for Oklahoma wildfires during the growing (May-October) and dormant seasons (November-April). We hypothesized that soil moisture influences wildfire size when vegetation is growing but is less important when most vegetation is dead or dormant. Soil moisture, as fraction of available water capacity (FAW), and commonly measured weather variables were determined for 38,419 wildfires from 2000–2012. Wildfires were grouped by …
California Ethnobotany: A Bibliography,
2015
Humboldt State University
California Ethnobotany: A Bibliography, James P. Smith Jr
Botanical Studies
No abstract provided.
A Comparative Study Of Medicago Truncatula Transcriptomes As They Relate To Saponin Defenses Against Insect Pests,
2015
University of Arkansas, Fayetteville
A Comparative Study Of Medicago Truncatula Transcriptomes As They Relate To Saponin Defenses Against Insect Pests, Audra Mae Rogers
Graduate Theses and Dissertations
Triterpene saponins are a class of defensive plant-derived compounds, which have a
variety of functions including antimicrobial, insecticidal, and nematicidal activities. This
research assessed the performance of the beet armyworm, Spodoptera exigua, following ad
libero feeding on Medicago truncatula accessions differing in specialized metabolite and
saponin profiles. Insect performance did not directly relate to the foliar saponin levels in the
accessions, which was measured using HPLC mass spectrometry. Accession ESP105 had the lowest foliar saponins overall, yet had similar levels of soyasaponins compared to the other accessions. Conversely, accessions A17, PRT178, and GRC43 had high foliar saponins with particularly high …
The Effects Of Meloidogyne Incognita And Heterodera Glycines On The Yield And Quality Of Edamame In Arkansas,
2015
University of Arkansas, Fayetteville
The Effects Of Meloidogyne Incognita And Heterodera Glycines On The Yield And Quality Of Edamame In Arkansas, Juliet Fultz
Graduate Theses and Dissertations
Edamame (Glycine max), also known as vegetable soybean, was introduced to the United States from Japan in 1890 and has been growing in popularity as a nutrient-rich, low-sugar snack in recent years. In 2012, the American Vegetable Soybean and Edamame, Inc. established the first domestic commercial processing plant in Mulberry, Arkansas and contracted local growers for production. Since the crop is harvested when seed are immature, management practices are different from those for traditional soybean. Plant-parasitic nematodes, particularly Meloidogyne incognita (southern root-knot) and Heterodera glycines (soybean cyst), are common in Arkansas and are pests of concern for edamame growers. Edamame …
Rice Blast Disease In The U.S. And Africa: Determination Of Pathogen Diversity And The Identification Of Resistance Genes For Disease Management,
2015
University of Arkansas, Fayetteville
Rice Blast Disease In The U.S. And Africa: Determination Of Pathogen Diversity And The Identification Of Resistance Genes For Disease Management, Felix Rotich
Graduate Theses and Dissertations
Rice blast caused by Magnaporthe oryzae (= Pyricularia oryzae) B. Couch, is a leading disease of rice. Magnaporthe oryzae exhibits a high degree of diversity. The diversity of isolates of M. oryzae from Africa and the U.S. were examined using vegetative compatibility and virulence phenotyping as well as determination of variation in the avirulence gene AVRPiz-t in isolates from Africa. Also, evaluation of blast resistance genes in the interspecific rice germplasm “New Rice for Africa” NERICA was done using F2 progeny of the cross of U.S. susceptible cultivar M204 and NERICA 12. The U.S. isolates were in three vegetative compatibility …
Demography And Disease Of The Rare Shrub Buckleya Distichophylla (Santalaceae) In Northeastern Tennessee,
2015
East Tennessee State University
Demography And Disease Of The Rare Shrub Buckleya Distichophylla (Santalaceae) In Northeastern Tennessee, William Seth Ratliff
Undergraduate Honors Theses
Piratebush (Buckleya distichophylla (Nutt.) Torr.) is a rare, hemiparasitic shrub with the only extant populations in western North Carolina, northeastern Tennessee, and southwestern Virginia. The preferred natural hosts of piratebush, Carolina and eastern hemlocks, have seen sharp declines over the last decade due to the invasive hemlock woolly adelgid. Virginia pine, another important host of piratebush, is also susceptible to disease, specifically Cronartium appalachianum, a rust fungus for which piratebush is the secondary host. This study described and analyzed current demographic parameters of three Tennessee piratebush populations. Additionally, spatial patterns of disease and demographic characters were analyzed. These …
Book Reviews: Bumble Bees Of North America. Paul H. Williams, Robbin W. Thorp, Leif L. Richardson, And Sheila R. Colla.,
2015
Zoologist, U.S. Geological Survey, Northern Prairie Wildlife Research Center
Book Reviews: Bumble Bees Of North America. Paul H. Williams, Robbin W. Thorp, Leif L. Richardson, And Sheila R. Colla., Samuel O’Dell
The Prairie Naturalist
Bumblebee identification is generally considered straight- forward, yet mistakes often are made due to the degree of similarity between the color patterns of different species. Bumble Bees of North America aims to improve the accuracy of identifications by both casual observers and professionals through the use of intuitive diagrams, descriptions, and the more technical dichotomous keys. In addition to providing the first complete field guide to North American bumblebees, the authors make efficient use of the reader’s attention by summarizing taxonomic history, favored food plants, and environmental issues concerning bumblebees.
Bumble Bees of North America is organized into three distinct …
