Life Sciences Commons^™

Arkansas Soybean Performance Tests 2024, J. F. Carlin, R. D. Bond, T. C. Swanson, J. C. Mccoy

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.

Arkansas Soybean Research Studies 2023, Jeremy Ross

Arkansas Agricultural Experiment Station Research Series

The 2023 Arkansas Soybean Research Studies includes research reports on topics pertaining to soybean across several disciplines from breeding to post-harvest processing. Research reports contained in this publication may represent preliminary or only data from a single year or limited results; therefore, these results should not be used as a basis for long-term recommendations.

Several research reports in this publication will appear in other University of Arkansas System Division of Agriculture’s Arkansas Agricultural Experiment Station publications. This duplication is the result of the overlap in research coverage between disciplines and our effort to inform Arkansas soybean producers of the research …

Oregon State Rank Assessment For Wallowa Mountainbalm (Monardella Walwaamaxsia), Nora Dunkirk, Gabriel E. Campbell

Institute for Natural Resources Publications

Oregon state conservation status assessment for Wallowa mountainbalm (Monardella walwaamaxsia) using NatureServe methodology, 2025.

Oregon State Rank Assessment For Cascade Rockcress (Boechera Cascadensis), Gabriel E. Campbell, Nora Dunkirk

Institute for Natural Resources Publications

Oregon state conservation status assessment for Cascade rockcress (Boechera cascadensis) using NatureServe methodology, 2025.

Oregon State Rank Assessment For Kruckeberg Mountainbalm (Monardella Kruckebergii), Nora Dunkirk, Gabriel E. Campbell

Institute for Natural Resources Publications

Oregon state conservation status assessment for Kruckeberg mountainbalm (Monardella kruckebergii) using NatureServe methodology, 2025.

Arkansas Corn And Grain Sorghum Performance Tests 2024, J. F. Carlin, R. D. Bond, J. C. Mccoy, T. C. Swanson

Arkansas Agricultural Experiment Station Research Series

Corn and grain sorghum performance tests are conducted each year in Arkansas by the University of Arkansas System Division of Agriculture. The tests provide information to companies marketing seed within the state and aid the Arkansas Cooperative Extension Service in formulating recommendations for producers.

The 2024 corn performance tests contained 44 hybrids and were conducted at the Northeast Rice Research and Extension Center (NERREC) at Harrisburg, the Lon Mann Cotton Research Station (LMCRS) near Marianna, the Rohwer Research Station (RRS) near Rohwer, and the Rice Research and Extension Center (RREC) near Stuttgart. The 2024 grain sorghum performance tests contained 16 …

Oregon State Rank Assessment For Transparent Milk-Vetch (Astragalus Daphanus Var. Diaphanus), Nora Dunkirk, Gabriel Campbell

Institute for Natural Resources Publications

Oregon state conservation status assessment for Transparent Milk-vetch (Astragalus daphanus var. diaphanus) using NatureServe methodology, 2025.

Effects Of Pericarp Removal And Different Germination Conditions On Seed Germination And Saline-Alkali Tolerance Of Amorpha Fruticosa, Zhan-Wu Gao, Yong-Guang Mu, Feng Chen, Li-Jie He, Xin-Ning Li, Jia-Tong Li, Ke-Jia Ding, Yan-Hui Cu, Chun-Sheng Mu, Adnan Rasheed

Turkish Journal of Botany

In this paper, neutral salt NaCl and basic salt Na2CO3 were used to simulate salt stress and alkali stress respectively, and the effects of salt stress and alkali stress on seed germination and growth changes in natural saline-alkali soil were studied, in order to provide theoretical basis for making full use of plant resources and improving production efficiency. The fruit peel of Amorpha fruticosa contains a lot of lipids, which has a significant effect on seed germination. Under salt stress, removal of pericarp significantly increased germination rate, germination potential and germination index (P< 0.05), and significantly shortened germination time of seeds (p< 0.05), which accelerated the establishment of seedlings, reduced the stress time during germination, and advanced the transition from heterotrophic to autotrophic, accumulating more anions and organic solutes to adapt to salt stress. Therefore, when planting in neutral salt soil, it can be used to remove the peel for sowing to improve the planting effect. However, under alkali stress, the growth is inhibited by the absorption of a large amount of Na+ and high pH value, so it is not suitable for removing the peel for sowing. Different germination conditions had significant effects on seed germination. The length and biomass of radicle and germ in sand culture were significantly higher than those in paper culture (P< 0.05). Under the condition of sand culture, the concentration of the treatment solution can be well maintained, which is conducive to fixing the seedlings and reducing the interference of other mineral elements. Therefore, sand culture method is recommended for seed germination experiments under stress, especially for plants with developed roots.

A Review Of The Early Miocene Pinuxylon Species Of Türkiye With A New Species, Ünal Akkemi̇k, Dimitra Mantzouka

Turkish Journal of Botany

Many Pinuxylon W.Gothan 1905 (formerly described as Lesbosoxylon Süss & Velitzelos 2010) fossil woods were identified from different parts of Türkiye. After five species had been described from Lesbos Island and one new species from Eastern Anatolia, more recent studies showed that this fossil-genus comprises more species and had a wider range in the Early Miocene through the Aegean Islands and Anatolia. The purpose of the present study is to summarize the state-of-the-art of the fossil-species of this genus from the Early Miocene of Türkiye. The thin sections housed in the fossil collections of the Department of Forest Botany, Faculty …

Impact Of Anoxygenic Phototrophic Bacteria On The Growth Of Arabidopsis Thaliana Under Salt Stress, Behi̇ye Nur Aksoy, Hamza Ettadili, Caner Vural

Turkish Journal of Botany

The effect of a microbial mixture containing anoxygenic phototrophic bacteria (APB) on the growth of Arabidopsis thaliana ecotype Col-0 under salt stress was investigated. To induce salt stress, 150 mM NaCl was applied to A. thaliana. Four treatments were employed to assess the impact of APB: (1) control plants, (2) plants inoculated with a mixture of enriched photosynthetic bacteria, (3) plants inoculated with a mixture of enriched photosynthetic bacteria and irrigated with 150 mM NaCl solution, and (4) plants irrigated with 150 mM NaCl solution. The analysis demonstrated that the inoculated plants exhibited increased leaf formation and leafsize. Furthermore, an …

Molecular Identification And Functional Characterization Of A Stilbene Synthase Gene In Rheum Officinale, Gaoxin Hao, Mengmeng Liu, Qiao Du, Xia Zhao, Feng Yan, Xiaochen Hu, Jing Gao, Liang Peng, Yimin Li, Gang Zhang

Turkish Journal of Botany

Stilbene synthase (STS), is a pivotal gene involved in the biosynthesis and regulation of stilbenes compounds, playing a crucial role in plant growth, development and stress adaptation. Meantime, stilbene compounds hold promising prospects of the wide-ranging clinical applications. Rheum officinale contains abundant stilbene compounds, yet the precise regulatory genes governing their biosynthesis remain elusive. In this study, the ORF of RoSTS gene was amplified, yielding a length of 1,140 bp and encoding a protein consisting of 379 amino acids with a relative molecular mass of 41 640.25 Da. The RoSTS protein contained the conserved residues (Cys 164, His 303, and …

Acetylcholine Treatments Enhance Growth, Photosynthesis Efficiency And Stress Resilience In Maize Seedlings Exposed To Arsenic, Büşra Arikan-Abdulveli

Turkish Journal of Botany

Arsenic (As) is a widespread and highly toxic metalloid that adversely affects plant health, leading to reduced yields, impaired photosynthesis, and compromised root structures. Although acetylcholine (ACh), a neurotransmitter implicated in plant growth and stress responses, has shown potential in mitigating heavy metal stress, its effects on As stress in maize (Zea mays L.) remain largely unexplored. This study investigated the impact of ACh treatments on maize seedlings exposed to As stress (100 µM), focusing on physiological responses, growth rates, photosynthesis, and the antioxidant system. Our findings revealed that ACh treatments conferred differential protective effects against As stress. The lowest …

Oregon State Rank Assessment For Western Marsh-Rosemary (Limonium Californicum), Nora Dunkirk, Gabriel E. Campbell

Institute for Natural Resources Publications

Oregon state conservation status assessment for western marsh-rosemary (Limonium californicum) using NatureServe methodology, 2025.

Using Phylogenetics And Floral Evolution Of Sicklebill Hummingbird-Pollinated Centropogon Subgenus Centropogon To Support Undergraduate Research, Janet Mansaray

LSU Doctoral Dissertations

The genus Centropogon subgenus Centropogon, offers an ideal system for studying macroevolutionary patterns due to its diverse floral morphologies and specialized pollinator interactions. This subgenus comprises 55 species, mostly found in mid-elevation Andean forests, where many species exhibit abruptly curved flowers, often associated with pollination by sicklebill hummingbirds. Using phylogenomic approaches, we conducted the first densely sampled analysis of this group, confirming the monophyly of two sections. Our study highlighted extensive gene tree discordance, likely driven by incomplete lineage sorting. Floral curvature and inflorescence structure evolved in a correlated fashion, leading to multiple independent losses of traits linked to …

Evaluating Genetic Variation Of Brassica Tournefortii Gouan Collections Via Microsatellite Marker Analysis, Brian Alfaro, Thomas F. Turner, Diane L. Marshall

Aliso: A Journal of Systematic and Floristic Botany

Plants can differ in phenotypes, but genetic variation may not always reflect phenotypic differentiation. In this study, we tested if native, invasive and landrace population types of Brassica tournefortii Gouan diverged genetically. We performed this comparison by genotyping individuals derived from our own field collections (invasive populations) and from USDA accessions (plants from the native range and landraces). We used two polymorphic microsatellite loci to analyze allelic diversity (Question 1), genetic differentiation, admixture, inbreeding (Question 2) and evolutionary relationships (Question 3) of three population types and of 17 populations of B. tournefortii. Comparison of allelic diversity indices and observed …

Towards Cost Effective Autonomous Mapping Of Invasive Aquatic Plants Using Deep Learning And A Gpu Enabled Microcomputer, Swarup Bhattarai, Sathishkumar Samiappan, Piyush Chaudhary, Ashutosh Shah

GRI Publications

We present a dataset for the autonomous identification of invasive aquatic plant species using deep learning techniques. The dataset includes high-resolution images captured using a Canon EOS REBEL T3 DSLR camera for model training and low-resolution images captured with a Raspberry Pi camera for evaluating model performance under real-world conditions. Eight invasive aquatic plant species: Alternanthera philoxeroides, Cyperus blepharoleptos, Salvinia molesta, Ludwigia peploides, Panicum repens, Pontederia crassipes, Pistia stratiotes, and Nymphaea odorata were cultivated in mesocosms at the R.R. Foil Plant Research Center, Mississippi State University. The controlled environment of mesocosms serve as …

Microbial And Plant Biodiversity In Appalachian Agroecosystems And Their Implications For Soil Health, Kinsey Reed Close

Graduate Theses, Dissertations, and Problem Reports (ETD)

The sustainability of agricultural landscapes depends on understanding the complex interactions between plants, soil, and microbes. In Appalachia, a region shaped by complex terrain and long histories of human and ecological interaction, small family farms produce hay, livestock, and row crops. These agroecosystems, though often treated as “artificial” by many ecologists, have the potential to support both food production and biodiversity conservation if managed with an understanding of ecological complexity. This dissertation examines how plant and microbial diversity interact with soil and management to influence nutrient cycling, soil health, and long-term resilience in Appalachian agricultural systems. A literature review revealed …

Stachys Matthewsii: Photo Essay Of A Rare Plant, W. John Hayden

Biology Faculty Publications

On the morning of June 14, 2021, while collecting bryophytes in Goochland County with my student, Mikayla Quinn, we stumbled upon a previously unknown population of stachys matthewsii, Yadkin's Hedge Nettle.

Assessing Understory Along The Elk River (Hikshari') In Headwaters Forest Reserve, Humboldt County, California, Julie R. Meyers, Aliyah M. Ingram, Caleb N. Larkin, Joshua L. Carpenter

Environmental Science & Management Senior Capstones

Northern California’s extensive logging history and lack of forest management has altered old-growth coast redwood (Sequoia sempervirens) forests, leaving dense, homogenous second and third-growth forest stands. This has led to the use of modern restoration techniques such as variable density thinning (VDT) which aims to rehabilitate old-growth forest conditions by improving stand heterogeneity and light availability for understory species. Our study was done in Headwaters Forest Reserve (HFR) along the Elk River (Hikshari’) Trail in Humboldt County, California. Initially, the project was supervised by the Bureau of Land Management (BLM) Arcata Field Office. However, the 2025 U.S. government …

Contents 43(1)

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

A Vascular Flora Of Ladd Canyon, Santa Ana Mountains, Orange And Riverside Counties, California, Daniel P. Donovan, Amanda E. Fisher

Aliso: A Journal of Systematic and Floristic Botany

The Santa Ana Mountains are a coastal range on the border of Orange and Riverside counties in southern California. Ladd Canyon, covering 18.2 km² in the Cleveland National Forest, is a botanical black hole relative to the rest of the Santa Ana Mountains because of limited access. It is dominated by chaparral and coastal sage scrub and includes significant knobcone pine (Pinus attenuata) stands and riparian woodland. Features that make it an intriguing area to study include the only serpentine soil in the Santa Ana Mountains, large tracts of habitat that have no recorded fire history, steep …

The Rare, Endangered And Endemic Plants Of The California Floristic Province Portion Of Baja California, Mexico, Bart C. O'Brien, Jon P. Rebman, José Delgadillo-Rodríguez, Kanchi Natarajan Gandhi, Steven A. Junak, Thomas A. Oberbauer, Hugo Riemann, Sula E. Vanderplank

Aliso: A Journal of Systematic and Floristic Botany

The California Floristic Province (CFP) is one of the world’s biodiversity hotspots, known for high levels of plant endemism. The CFP extends from southwestern Oregon, through cismontane California, south to northwestern Baja California, Mexico. The flora of the California Floristic Province portion of Baja California (CFP Baja) has historically been poorly documented and understood. This study provides data to address this deficiency by inventorying and assessing the native flora of CFP Baja from a conservation perspective: evaluating the rarity, endangerment and endemism of its native taxa. A total of 2392 taxa were assessed to determine this listing of rare, endangered …

Functional Trait Responses Of Invasive Ludwigia Species Tocontrasting Hydrological Conditions, Rebecca E. Drenovsky, Rebecca Reicholf, Caryn Futrell, Blanca Gallego‐Tévar, Brenda J. Grewell

2025 Faculty Bibliography

Premise: Hydrological regime influences wetland plant species distribution andperformance. Global warming and extreme weather events are magnifying floodingpatterns, and understanding how invasive taxa respond across life stages (establish-ment vs. established phase) is important for predicting and managing their coloni-zation and spread. Our objective was to measure flood trait responses at contrastinglife stages in closely related congeners (Ludwigia peploides, diploid; L. hexapetala,decaploid; Onagraceae) differing in their invasiveness in the field.

Methods: In the field, we assessed phenological responses to seasonal hydrological changes,and in mesocosms, we assessed flood stress responses of establishing shoot fragments underdeep‐flooded, shallow‐flooded, and gradual drawdown hydrological …

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

What’S In A Name? Anapodophyllon? Podophyllum? It’S Still Mayapple, W. John Hayden

Biology Faculty Publications

No abstract provided.

A Flora Of Coyote Ridge And Flat, Inyo County, California, Martin D. Purdy

Aliso: A Journal of Systematic and Floristic Botany

California’s Sierra Nevada contains a disproportionate share of the state’s plant diversity and is one of the most floristically diverse regions of its size in the United States. The high Sierra Nevada, in particular, has been identified as an important center of species richness and endemism within the State. Anthropogenic climate warming is expected to disproportionately affect mountain ecosystems, and models have predicted habitat contraction and extirpation for many alpine plant taxa. A specimen-based inventory of the vascular plants and bryophytes of Coyote Ridge and Flat was conducted to establish baseline data for one such sensitive alpine and subalpine area. …

Impact Of An Herbicide Treatment In An Annual Grass Invaded Sagebrush Steppe, Jordan Dino Santia

Undergraduate Scholarship

Globally, rangelands are being threatened by invasive annual grasses (IAGs) that alter fire regimes, drive vegetation type conversion, and alter ecosystem function. This study evaluates vegetation responses to an Imazapic treatment applied in 2020 to control a population of Taeniatherum caput-medusae, an IAG, that flourished following a severe wildfire in 2013. The site, located on a Bureau of Land Management (BLM) grazing allotment east of Klamath Falls, Oregon, has been monitored annually using the Assessment, Inventory, and Monitoring (AIM) protocol since the Summer of 2022. Over this period, very little T. caput-medusae has been detected while bare ground has …

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 26 2025, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Featured Faculty Mentor/Student Team, Kelly Loftin, Eva Berryhill

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.