SIT Study Abroad
Trends In Nectar Production And Concentration Of Hummingbird-Pollinated Flowers: An Investigation Of Three Flowers Of The Ecuadorian Cloud Forest: Palicourea Demissa, Mezobromelia Capituligera, And Kohleria Affinis, Grace Palmer
Independent Study Project (ISP) Collection
Nectar concentration and sugar production both impact and are impacted by pollinator activity through a complex system of coevolution. Additionally, a variety of morphological and environmental factors influence the nectar properties of animal-pollinated flowering plants. Nectar concentration and nectar production rate (NPR) of three hummingbird-pollinated plants, Palicourea demissa, Mezobromelia capituligera, and Kohleria affinis, were measured. These flowers occur and were studied in the southern section of the Chocó-Andean subtropical montane rainforest, in the Pichincha province of Ecuador. Flowers were bagged for 24 hours and sampled at approximate two-hour time intervals for 12 or 24 hours. Nectar concentration and sugar production …
A Checklist Of The Vascular Plants Of Scott Mountain,
2019
Humboldt State University
A Checklist Of The Vascular Plants Of Scott Mountain, James P. Smith Jr, John O. Sawyer Jr.
Botanical Studies
No abstract provided.
Genome-Wide Association Studies In Maize And Sorghum,
2019
University of Nebraska-Lincoln
Genome-Wide Association Studies In Maize And Sorghum, Preston Hurst
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
Genome-wide association studies are used to identify genetic variants associated with a particular phenotype. GWAS has been used in a variety of taxa, from humans, to fish to plants . The present analysis is focused on two species important to the human species: maize and sorghum. A GWAS in maize was carried out on the modification of the Ga1-s allele. The Ga1 locus has long been studied as being involved in a unilateral crossing barrier . However, it has long been suspected that the locus is modified by background genetic factors . GWAS was used to observe candidates for this …
Nutrient Management Suggestions For Corn,
2019
University of Nebraska - Lincoln
Nutrient Management Suggestions For Corn, Charles A. Shapiro, Richard Ferguson, Charles S. Wortmann, Bijesh Maharjan, Brian T. Krienke
Department of Agronomy and Horticulture: Faculty Publications
Fertilizer nutrient requirements for corn are based on expected yield and soil nutrient availability. The preplant nitrogen (N) recommendation equation, with adjustment for fertilizer cost and time of application, is retained from the previous edition of this publication. Suggestions for in-season nitrogen decisions are briefly outlined. The major change is providing a phosphorus (P) recommendation based on yield history with an implied intent to build and maintain soil test P above the critical level, which has not changed.
Vascular Plants Of The Big And Little Duck Lakes (Siskiyou County, California),
2019
Humboldt State University
Vascular Plants Of The Big And Little Duck Lakes (Siskiyou County, California), James P. Smith Jr
Botanical Studies
No abstract provided.
Vascular Plants Of Horse Mountain (Humboldt County, California),
2019
Humboldt State University
Vascular Plants Of Horse Mountain (Humboldt County, California), James P. Smith Jr, John O. Sawyer Jr.
Botanical Studies
No abstract provided.
Vascular Plants Of The Coastal Beaches And Dunes Of Humboldt County, California,
2019
Humboldt State University
Vascular Plants Of The Coastal Beaches And Dunes Of Humboldt County, California, James P. Smith Jr
Botanical Studies
No abstract provided.
Vascular Plants Of The Stony Creek Bog Area Del Norte County, California,
2019
Humboldt State University
Vascular Plants Of The Stony Creek Bog Area Del Norte County, California, James P. Smith Jr, John O. Sawyer Jr.
Botanical Studies
No abstract provided.
Checklist Of The Vascular Plants Of The Trinity Alps,
2019
Humboldt State University
Checklist Of The Vascular Plants Of The Trinity Alps, James P. Smith Jr, John O. Sawyer Jr.
Botanical Studies
No abstract provided.
Strategies To Overcome Antagonism Of Quizalofop-P-Ethyl When Applied In Mixture With Other Herbicides,
2019
Louisiana State University
Strategies To Overcome Antagonism Of Quizalofop-P-Ethyl When Applied In Mixture With Other Herbicides, Lucas C. Webster
LSU Master's Theses
A field study was conducted in 2017 and 2018 at the LSU Agricultural Center H. Rouse Caffey Rice Research Station (RRS) near Crowley, LA. to evaluate the influence of different adjuvants in overcoming the antagonism of quizalofop when mixed with bispyribac in Louisiana rice production. The antagonism of quizalofop mixed with bispyribac plus HCOC at 14 DAIT was overcome with a neutral interaction observed at 28 DAIT for barnyardgrass control with an observed control of 91%, compared with an expected control of 97%. The addition of COC, SNS or HCOC into a mixture of quizalofop plus bispyribac provided synergistic or …
Development Of A Nitrogen Recommendation Tool For Corn Considering Static And Dynamic Variables,
2019
University of Nebraska-Lincoln
Development Of A Nitrogen Recommendation Tool For Corn Considering Static And Dynamic Variables, Laila A. Puntel, Agustin Pagani, Sotirios V. Archontoulis
Department of Agronomy and Horticulture: Faculty Publications
Many soil and weather variables can affect the economical optimum nitrogen (N) rate (EONR) for maize. We classified 54 potential factors as dynamic (change rapidly over time, e.g. soil water) and static (change slowly over time, e.g. soil organic matter) and explored their relative importance on EONR and yield prediction by analyzing a dataset with 51 N trials from Central-West region of Argentina. Across trials, the average EONR was 113 ± 83 kg N ha−1 and the average optimum yield was 12.3 ± 2.2 Mg ha−1, which is roughly 50% higher than the current N rates used …
Purification And Characterization Of A Nonspecific Lipid Transfer Protein 1 (Nsltp1) From Ajwain (Trachyspermum Ammi) Seeds,
2019
Chapman University
Purification And Characterization Of A Nonspecific Lipid Transfer Protein 1 (Nsltp1) From Ajwain (Trachyspermum Ammi) Seeds, Meshal Nazeer, Humera Waheed, Maria Saeed, Saman Yousuf Ali, M. Iqbal Choudhary, Zaheer Ul-Haq, Aftab Ahmed
Pharmacy Faculty Articles and Research
Ajwain (Trachyspermum ammi) belongs to the family Umbelliferae, is commonly used in traditional, and folk medicine due to its carminative, stimulant, antiseptic, diuretic, antihypertensive, and hepatoprotective activities. Non-specific lipid transfer proteins (nsLTPs) reported from various plants are known to be involved in transferring lipids between membranes and in plants defense response. Here, we describe the complete primary structure of a monomeric non-specific lipid transfer protein 1 (nsLTP1), with molecular weight of 9.66 kDa, from ajwain seeds. The nsLTP1 has been purified by combination of chromatographic techniques, and further characterized by mass spectrometry, and Edman degradation. The ajwain nsLTP1 …
African Affinity Mask,
2019
Humboldt State University
Mass Caffeination,
2019
Monash University
Mass Caffeination, Michael J. Leach
The Transdisciplinary STEAM+ Journal
This poem reflects on caffeine intake in modern society from the perspective of a pharmacologist. It is a free verse, concrete poem that communicates the science of caffeine through both words and visual images.
Seasonal Origins Of Soil Water Used By Trees,
2019
ETH Zurich
Seasonal Origins Of Soil Water Used By Trees, Scott T. Allen, James W. Kirchner, Sabine Braun, Rolf T. W. Siegwolf, Gregory R. Goldsmith
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Rain recharges soil water storages and either percolates downward into aquifers and streams or is returned to the atmosphere through evapotranspiration. Although it is commonly assumed that summer rainfall recharges plant-available water during the growing season, the seasonal origins of water used by plants have not been systematically explored. We characterize the seasonal origins of waters in soils and trees by comparing their midsummer isotopic signatures (δ2H) to seasonal isotopic cycles in precipitation, using a new seasonal origin index. Across 182 Swiss forest sites, xylem water isotopic signatures show that summer rain was not the predominant water source …
Pteridium Nuclear Gene Phylogeny,
2019
Utah State University
Pteridium Nuclear Gene Phylogeny, Paul G. Wolf, Carol Rowe, Sylvia Kinosian, Joshua P. Der, Peter J. Lockhart, Lara D. Shepherd, Patricia A. Mclenachan, John A. Thomson
Browse all Datasets
Raw amplicon sequence data and raw reads of from GBS library. Also all code and analyses required to process raw data.
Using Publicly Available Genbank Data To Teach Plant Phylogeny In High School Classrooms,
2019
South Dakota State University
Using Publicly Available Genbank Data To Teach Plant Phylogeny In High School Classrooms, Madhav P. Nepal, Ethan J. Andersen
iLEARN Teaching Resources
In this teaching module, students will learn about NCBI GenBank, search for DNA/protein sequences from multiple plant species of a gene that encodes Rubisco enzyme, construct and interpret a phylogenetic tree, and discuss traits that allowed plants to adapt their life on land.
Arkansas Soybean Performance Tests 2018,
2019
University of Arkansas, Fayetteville
Arkansas Soybean Performance Tests 2018, R. D. Bond, J. A. Still, J. F. Carlin
Arkansas Agricultural Experiment Station Research Series
Soybean variety and strain performance tests are conducted each year in Arkansas by the University of Arkansas System Division of Agriculture’s Arkansas Crop Variety Improvement Program. The tests provide information to companies developing varieties and/or marketing seed within the State, and aid the Arkansas Cooperative Extension Service in formulating variety recommendations for soybean producers.
Distribution And Population Structure Of The Invasive Nitellopsis Obtusa (Desv. In Loisel.) J. Groves And Native Species Of Characeae In The Northeast U.S.A.,
2019
CUNY Graduate Center
Distribution And Population Structure Of The Invasive Nitellopsis Obtusa (Desv. In Loisel.) J. Groves And Native Species Of Characeae In The Northeast U.S.A., Robin Sleith
Dissertations, Theses, and Capstone Projects
Freshwater ecosystems are some of the most biologically diverse environments on Earth. Billions of humans rely on functioning freshwater ecosystems for drinking water and many other services. These ecosystems are increasingly threatened by human impacts including nutrient pollution, invasive species, and climate change. Here I contribute four research chapters that investigate freshwater diversity and ecosystem threats using the Characeae, a family of freshwater green macroalgae, as a study system. Characeae are a diverse and ancient group with more than 500 extant species and a fossil history spanning at least 250 million years. These algae are macrophytes in freshwater ecosystems, and …
Understanding Greenhouse Gases,
2019
Garretson Public School, Garretson, South Dakota
Understanding Greenhouse Gases, Julie M. Mueller, Laura Edwards, Madhav P. Nepal, Larry B. Browning, Matthew L. Miller, P. Troy White
iLEARN Teaching Resources
Students will conduct hands-on experiments to see how greenhouse gases interact with the Earth’s atmosphere and how greenhouse gases affect temperature. This lesson introduces National Geographic’s Geo-Inquiry Process, where students will identify a Geo-inquiry question, collect data, and create a project around the answer to their question. Students will then present their findings to their peers and evaluate their Geo-Inquiry process.
