Morphogenesis And Growth Analysis Of Panicum Maximum Cultivars, A Gomide, C A.M Gomide

IGC Proceedings (1977-2023)

Four cultivars of Panicum maximum, grown in pots, were evaluated regarding their leaf appearance and elongation rates, tillering appearance rate, as well as growth indices. Differences among cultivars were found as to leaf appearance and elongation rates and tillering rates. Main tiller leaf appearance was higher relative to primary tiller in the seedling growth, only. Primary tiller showed higher leaf elongation rate in the aftermath growth. No difference among cultivars was found for drymatter yield after 52 d growth period, leaf mortality, net assimilation rate, leaf area ratio and relative growth rate.

Competitive Interactions Between Palatable And Unpalatable Grasses: Effects Of Selective Defoliations Of The Palatable Grasses, R A. Distel, A S. Moretto

IGC Proceedings (1977-2023)

Selective herbivory of the palatable species appears to be a dominant mechanisms contributing to species competitive replacement in grasslands. Selective herbivory of the palatable species allows unpalatable species to realize a competitive advantage within the community. To test this hypothesis we compare the competitive ability of the unpalatable grasses Stipa trichotoma or S. gyneriodes in the presence of nondefoliated and defoliated plants of the palatable grass S. clarazii. The three species are native to a temperate semiarid grassland of Argentina. The response variables estimated in S.trichotoma and S.gynerioides, at both plant and tiller levels, were higher (P < 0.05) in the presence of defoliated than in the presence of undefoliated plants of S.clarazii. These results support the hypothesis that selective herbivory of the palatable species confers unpalatable species a competitive advantages, contributing to species competitive replacement within the community.

Allelopathic Interactions Among Forage Grasses And Legumes, A P.S Souza Filho, T De J.D. Rodrigues, L.R. De A. Rodrigues, R A. Reis

IGC Proceedings (1977-2023)

Aqueous extracts at 10% were prepared with the shoots of the grasses Brachiaria brizantha cv. Marandú, B. decumbens, B. humidicola, and of the legumes Calopogonium mucunoides, Leucaena leucocephala, Stylosanthes guianensis cv. Mineirão. The effects of the extracts were evaluated on the germination and on the radicleelongation of the forages. The pH, the electric conductivity and the osmotic potential of the extracts were determined. The germination and radicle biossays were conducted in germination chambers, with controlled temperature and photoperiod. The pH and the presence of ions did not contribute to the effects observed. The extracts of the legumes tended …

Early Ontogenetic Responses Of Six Commercial Chloris Gayana Cultivars To Salinity, E Taleisnik, H Perez, G Peyrano, C Arias

IGC Proceedings (1977-2023)

Some physiological aspects relevant to pasture establishment under saline conditions were evaluated in six cultivars of Chloris gayana . Two tetraploid cultivars: Boma and Callide, and four diploid ones: Bell, Katambora, Pioneer and a local accession of Pioneer, were analyzed. The effect of salinity on seedling emergence, the number of stolons per plant and frost tolerance were evaluated in the field, while effects on germination, early vegetative growth, regrowth after clipping, ion accumulation and stolon rooting were assessed in the greenhouse. Salinity had a negative effect on seedling emergence. Saline solutions delayed or altogether inhibited germination, but seeds retained viability …

Interpreting Indicators Of A Transfer Of N From Legume To Grass In Competition Studies, P G. Tow

IGC Proceedings (1977-2023)

The transfer of N from legume to grass in mixtures is important for regulating competition. In competition studies which include both monocultures and mixtures, N transfer should be detectable by grass N measurements but may be masked by competitive reductions in grass growth. In the study reported here, whole plant DM and N were measured in Panicum maximum var trichoglume and Neonotonia wightii grown in monocultures and additively in mixtures. While competition reduced whole grass plant DM and N in mixture relative to monoculture, higher grass shoot % N and N yield in the mixture at early harvests appeared reliable …

A Comparison Of Production And Soils In Modified Mixed Prairie Community, S W. Porter, W D. Willms, J F. Dormaar, B H. Ellert, H H. Janzen

IGC Proceedings (1977-2023)

This study examined the effects of reseeding a Stipa-Agropyron- Bouteloua community to monocultures of crested wheatgrass (Agropyron cristatum (L.) Geartn.), Russian wild rye grass (Elymus junceus Fisch.), and wheat (Triticum aestivum L.) on above and below ground biomass and indicators of soil quality. Summer fallowed wheat produced 10817 kg ha-1 and 4090 kg ha-1 of above ground below ground biomass respectively whereas the native community produced 3191 kg ha-1 above ground and 13013 kg ha-1 of below ground biomass. However wheat, crested wheatgrass and Russian wildrye grass generally showed a lower biological index, phosphatase and dehydrogenase activity.

Nitrogen Use Efficiency Of Timothy Populations, G Belanger, C Murray, R Michaud, F Gastal, J E. Richards

IGC Proceedings (1977-2023)

The objective of this study was to determine the variability in N use efficiency among field-grown timothy (Phelum pratense L.) populations. Shoot biomass and N uptake were measured at the end of the spring growth cycle on six timothy populations fertilized with three N rates at two sites in Eastern Canada. The variability in shoot biomass among populations was similar under limiting and nonlimiting N conditions. The ranking of the populations, however, differed under limiting and non-limiting N conditions, and also between the two sites under limiting N conditions. The differences in shoot biomass among populations under highly N …

Characterization Of The Leaf Anatomy Of Panicum Virgatum Germplasm, D S. Fisher, J C. Burns, J P. Pienaar

IGC Proceedings (1977-2023)

Both the yield and digestibility of C4 grasses have been related to anatomical characteristics. The objectives of the current work were to test switchgrass with varied yield and digestibility for variation in anatomical measurements and to develop a method of graphically representing the anatomy. Six accessions were established in replicated field plots and the lamina were sampled, dehydrated and embedded for anatomical study. Midrib dimensions were excluded from study but perimeters of primary and secondary vascular bundles in the lamina were measured. Lamina thickness was determined at the primary bundle, secondary bundle and at the minimum between the bundles. The …

Relation Of Root And Shoot Morphology Of Grass Seedlings, L E. Moser, A J. Smart

IGC Proceedings (1977-2023)

Grass seedling establishment is dependent on adventitious root development. However, evaluating the establishment status of a seeding by excavating a population of seedlings and determining root morphology is difficult and generally will not be undertaken. Based on both field and greenhouse studies we have found that root and shoot morphological development is closely related within species, for intermediate wheatgrass, [Thinopyrum intermedium (Host) Barkw. and D.R. Dewey], smooth bromegrass (Bromus inermis Leyss.), switchgrass (Panicum virgatum L.), and big bluestem (Andropogon gerardii Vitman) seedling populations. Easily observable developmental stages of seedling shoots were related to adventitious root development. …

Exploring Student Ageism Perceptions Using Life Review: An Educational Intervention, Rene Wren

Journal of Innovation in Health Sciences Education

Exploring Student Ageism Perceptions Using Life Review: An Educational Intervention

Abstract

Background: Addressing student ageism is essential for promoting desires to work with older adults, but little is known about how life review intervention, used as an educational tool in OT programs, can affect ageism. This study aimed to explore the effect of life review on OT students’ ageism perceptions and desires to work with older adults.

Design: A qualitative focus group research approach was performed.

Method: Thirty entry-level occupational therapy students from a Texas university were used as a convenient sample. After participating in a 4-hour workshop, students conducted …

Impact Of High School Climate And Bullying On Depression And Anxiety In Emerging Adulthood, Tyler Larson

INSPIRE Student Research and Engagement Conference

• Depression and anxiety are the most common mental disorders in adolescence and emerging adulthood (National Institute of Mental Health [NIMH], 2023; NIMH, n.d.)
• Previous studies have found that high school climate is correlated with poor mental health outcomes (Gunnarsdóttir et al., 2021; Gage et al., 2016)
• School climate is multidimensional. Previous research has identified peer and teacher relationships, school safety, and respect for individual differences as important aspects of high school climate (Gage et al., 2016)
• Bullying is a well-established risk factor for mental illness during adolescence (Jadambaa et al., 2020)
• A recent meta-analysis found that bullying is responsible for …

Government Spying And Abuse Of Power Against Minority Groups, Addyson Kaune

INSPIRE Student Research and Engagement Conference

During the Cold War, the United States government was absorbed in paranoia. Communism was an active threat to the United States’ democratic values. It used illegal counterintelligence measures to monitor groups deemed a threat to capitalism and political stability. These excessive security efforts aimed to survey various organized fringe groups such as the Communist Party of the United States and the Ku Klux Klan but most specifically targeted and adversely impacted the black community and even led to attacks on prominent members of groups such as the Black Panther Party. The United States government has not publicly acknowledged the injustices …

Childhood Experiences With Finances And How They Affect Bargaining For Salary, Lauren Logue, Maelah Golden

INSPIRE Student Research and Engagement Conference

• Financial socialization from parents has been shown to have a positive impact on the financial situation of young adults. Developing positive attitudes about money is a strong indicator of future financial well-being (Utkarsh, 2020).

• Without financial literacy, there is a higher risk of debt, bankruptcy, uncertain healthcare, social security, and retirement funds. Starting financial education early can lay the foundation for more success in the future (McCormick, 2006).

The Effects Of Virtual Reality Exercise On Cognitive Performance And Brain Activation In An Overweight/Obese Population, Greta Ness, Darci Wiseman, Emma Kelsey, Grayce Bjugan

INSPIRE Student Research and Engagement Conference

No abstract provided.

The Use Of Communal Resources And Its Effect On Wellness, Cassandra Ralston

INSPIRE Student Research and Engagement Conference

The point of the study is to see a possible relationship between the use of communal resources and wellness. The research question was how do communal resources relate to wellness? The hypothesis was the more one uses communal resources the higher their wellness will be. The sample was college students at the University of Northern Iowa (n=71). The results showed that the hypothesis was not supported. Other information regarding the knowledge of communal resources and their use of them showed that when people are advertised to about communal resources they are more likely to use them; more so than if …

Ukrainian Ice Cream Concrete Sculpture, Mario Loprete

Studio One

No abstract provided.

Italians Do It Better, Mario Loprete

Studio One

No abstract provided.

Concrete Ice Cream, Mario Loprete

Studio One

No abstract provided.

Consider Thy Love, Ernest Williamson

Studio One

No abstract provided.

Untitled, Richard Hanus

Studio One

No abstract provided.

Itching, Taylor Samuelson

Studio One

In 1978, Patricia and Leonard Percello endowed this prize to honor Patricia’s parents, Louis and Mary Wagner-Berger, and to support college women who are interested in writing short stories and novels. It is designed to encourage and reward excellence in creative writing at the College of Saint Benedict. The Wagner-Berger Prize for fiction is the first scholarship of its kind at the College of Saint Benedict. It is a scholarship awarded annually to the CSB student who submits the most original, previously unpublished short story. All submissions are judged by a committee of English Department members, and the winner receives …

Flagstaff Ave, Morgan Ebel

Studio One

No abstract provided.

Dueling Pianists, Julie A. Ferraro

Studio One

No abstract provided.

Customers Wait, Diane Webster

Studio One

No abstract provided.

Step One: Denial, Teresa Kopecky

Studio One

No abstract provided.

Her Purr Rise, Diane Webster

Studio One

No abstract provided.

The Rabbit, Diarmuid Ó Maolalaí

Studio One

No abstract provided.

Hold Ladders, Diane Webster

Studio One

No abstract provided.

Step Four: Depression, Teresa Kopecky

Studio One

No abstract provided.

The Hidden City, Russell Rowland

Studio One

No abstract provided.