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Growth And Yield Response Of Shallots To Npk, Nk, And Humic Acid Under Different Mycorrhiza Application, Alfu Laila, Endang Sulistyorini

Jurnal Kultivasi

One strategy to increase shallot production is the utilization of microorganisms in the soil, such as arbuscular mycorrhizal fungi (AMF), which is applied together with fertilizer. This research aimed to investigate the effects of different nutrient inputs and mycorrhizal association on the growth and yield of shallots. This study used a split-plot design with three replications as blocks. The main plot included four treatments: no nutrient inputs, NPK fertilizer, NK fertilizer, and humic acid, while the subplot involved the mycorrhiza application (with or without). The measured variables included growth (plant height and number of leaves) and yield (fresh weight and …

Estimating Leaf Area In Velvetleaf (Limnocharis Flava) And Kangkong (Ipomea Aquatica): A Precise And Non-Destructive Approach For Wetland Vegetables, Anggrika Riyanti, Benyamin Lakitan, Momon Sodik Imanudin, Muhammad Yazid

Jurnal Kultivasi

Developing a leaf-area estimation model for vegetable cultivars in wetlands is essential to optimizing agricultural cultivation practices. This study aims to develop a non-destructive model for leaf area estimation in wetland vegetable cultivars (velvetleaf (Limnocharis flava) and kangkong (Ipomoea aquatica)) using regression-based models. The plants were cultivated in a wetland system. Measurements of leaf length and width were taken on all leaves of each plant, using the product of length and width (L×W) as predictor. The regression models for estimating leaf area were adjusted from linear, zero-intercept linear, quadratic, and power. The optimal model was evaluated using the determination coefficient …

Optimization Of Physalis Angulata L. Callus Induction And Salinity-Induced Antioxidant Production, Firstian Naufal Sistyananda, Erni Suminar, Anne Nuraini, Muhamad Kadapi, Murgayanti, Syariful Mubarok, Rahmat Budiarto, Eddy Renaldi, Kusumiyati

Jurnal Kultivasi

Groundcherry (Physalis angulata L.) is a plant with many medicinal potentials due to its rich secondary metabolites such as phenolic and flavonoid. However, conventional agriculture practices are still limited, especially in Indonesia. This study was divided into two stages. The first stage was conducted to determine optimal 6-BAP and 2,4-D combination for callus induction, while the second stage was conducted to determine callus phenolic, flavonoid, and antioxidant response to salinity stress. The first stage was arranged in factorial completely randomized design with two factors: 6-BAP (0, 2, and 4 mg/L) and 2,4-D (0, 0.5, 1, and 1.5 mg/L). The second …

Growth Of Vanilla Cuttings Under Modified Acid Soil Media And Application Of Several Plant Growth Regulators, Rifqi Raditya Kurniawan, Yugi Rahayu Ahadiyat, Etik Wukir Tini

Jurnal Kultivasi

This research aimed to optimize the growth of vanilla (Vanilla planifolia) cuttings in acid soils by modifying the growing media and applying several types of plant growth regulators (PGRs). Several types of PGRs, including synthetic compounds such as indole-3-acetic acid (IAA) and 6-benzylaminopurine (BAP), as well as natural extracts from shallot (Allium ascalonicum L.) and moringa leaves (Moringa oleifera), were tested to enhance plant performance in acid-growing conditions. The primary objectives were to determine the optimal soil amendment formula and the most effective PGR type for promoting vanilla growth, and to develop a measurable, easy-to-use PGR formulation accessible to farmers. …

Growth Response And Yield Performance Of Upland Rice Intercropped With Legumes, Sevirasari, Wilujeng Hidayati, Zulfa Az Zahroh, Bayu Febriansyah, Marifatul Apri Fiana, Nabilla Najwa Rochmaniah, Khavid Faozi, Lafi Na'imatul Bayyinah, Joko Maryanto, Ahmad Fauzi

Jurnal Kultivasi

Intercropping patterns in upland rice must be carefully managed to prevent excessive competition among crops. This research aimed to determine the ideal proportion of upland rice–legume intercropped and legume types for rice growth and yield. The research was conducted in Mersi, East Purwokerto, Banyumas, Central Java, from April–August 2025. The study was arranged in a split-plot design consisting of a main factor in form of the proportion of upland rice to legumes (1:1, 2:1, and 3:1), and a sub-factor, i.e., legume types (peanuts, mung beans, and soybeans). The data were analyzed using Analysis of Variance and Tukey's HSD test at …

Target-Site Resistance To Glyphosate In Eleusine Indica Biotypes From South Sulawesi And Lampung, Indonesia, Ahmad Nur Lazuardi, Denny Kurniadie, Uum Umiyati, Ryan Widianto

Jurnal Kultivasi

Glyphosate is a non-selective systemic herbicide that has been widely used to control weeds by local corn farmers in South Sulawesi and Lampung Provinces of Indonesia. However, some corn farmers in these two regions were considered that glyphosate herbicide at the standard field dose no longer effective against goosegrass (Eleusine indica). To confirms the level of its resistance to glyphosate, seeds of E. indica suspected to be glyphosate-resistant were collected from corn fields in Soppeng Regency-South Sulawesi and South Lampung Regency-Lampung (designated as GR-1 and GR-2 respectively), along with a known susceptible biotype from Sumedang Regency-West Java (GS) as a …

Response Of Chlorophyll, Morphology, And Yield Of Several East Java Superior Soybean (Glycine Max L.) Varieties To Levels Of Salinity, Puji Lestari Tarigan, Ida Retno Moeljani, Fadila Suryandika, Hadi Munarko

Jurnal Kultivasi

Soybean production has been extended to saline areas. This development is a strategy to expand planting areas to suboptimal land to increase worldwide production. To support cultivation in these locations, it is necessary to develop superior varieties that are resistant to salinity and provide supporting technological inputs. In saline conditions, soybeans may face stress that leads to morphological, physiological, and yield disturbances. Consequently, the response of several soybeans in East Java should be observed. This study is a pot experiment and arranged in a Factorial Completely Randomized Design (CRD) consisting of two factors, soybean varieties and NaCl concentrations. The treatments …

Effects Of Phosphate-Solubilizing Fungi On Phosphorus Availability, Retention, And Soil Chemical Properties In Shallot Cultivated On Andisols Of North Sumatra, Agustina Erlinda Marpaung, Tengku Sabrina, Abdul Rauf, Dwi Ningsih Susilowati

Jurnal Kultivasi

The availability of phosphorus (P) is one of the main limiting factors for plant productivity in Andisol soils due to the strong fixation of P by allophane clay minerals, aluminum and iron oxides. Giving the phosphate solubilizing fungi (PSF) is an alternative to increase available P which plants can use to increase the yield. This study aimed to evaluate the effectiveness of phosphate-solubilizing fungi (PSF) in improving P availability on Andisol. The experiment used a block randomized design (BRD) with three replications. The first factor is Andisol soil origin (Soil 1 and Soil 2) and the second is isolate of …

Global Research On Palm Oil Diseases And Infections: A Bibliometric Analysis, Fahmi Achmad Saputra, Indria Puti Mustika, Anna Safarida, Catur Sriherwanto, Nicky Rahmana Putra

Makara Journal of Technology

The sustainability of global palm oil production faces significant threats from a range of diseases and infections affecting palm oil crops. This study presents a comprehensive bibliometric analysis to map the scientific landscape and evolution of research related to palm oil diseases over the past decade. Using data from the Scopus database, 366 relevant documents were analyzed using R and VOSviewer to uncover trends in publication volume, citation impact, prolific authors, country contributions, and keyword co-occurrence networks. The findings reveal a strong research concentration on G. boninense, highlighting its critical role as a persistent pathogen in oil palm plantations. Emerging …

Breeding For Diverse Color And Protein Quality In Popcorn And Sweet Corn, Jonathan Niyorukundo

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Sweet corn and popcorn are important crops consumed globally as vegetable and snack, respectively. They are deemed healthy foods due to high fiber and carotenoid contents, especially in yellow varieties. Commercial varieties are optimized for high-yielding agronomics, and previous efforts were made to improve specific macro- and micronutrient contents. Both sweet corn and popcorn have poor protein quality due to the inadequate essential amino acids such as lysine and tryptophan. Moreover, commercial varieties are predominantly yellow, thereby offering no diversity of other maize colors, which are potentially healthier and more appealing to the consumer. In this project, we sought to …

Effects Of Gibberellic Acid On Mutant Millet, Claire Swiderski, Eric Grant, Kimberly Karlsson, Neil Telfer, Jonathan Becker

2026 Student Academic Showcase

Millets are grasses with small seeds grown as a cereal crop, a major food crop, especially in equatorial regions and in developing countries. Millet plants can develop a dwarfism mutation that leads to less growth and lower yields than normal millet plants. This mutation can be related to a deficiency or insensitivity to a plant growth hormone called gibberellin. We used two experimental groups of millet plants, a control group and a group that received gibberellin treatments. By treating the plants with gibberellin, we observed increased growth in mutant and wild-type millet plants. We measured the length of each plant …

Effects Of Gibberellic Acid (Ga3) On Growth, Height, And Structural Strength In Mutant Setaria Viridis, Gracie Jones, Emma Lewis, Robert Larsen, Alejandro Molina

2026 Student Academic Showcase

Gibberellin (GA3) is a plant hormone that promotes stem elongation and overall plant growth. It increases cell elongation, which results in taller plants. However, increased growth may come at the cost of structural strength. Some mutant plants respond differently to gibberellin depending on whether they are sensitive or insensitive to the hormone. Sensitive mutants lack the ability to produce gibberellin but respond when it is applied, while insensitive mutants do not respond due to defects in hormone signaling. This experiment examines how GA3 affects plant height, panicle development, and structural stability in mutant Setariaviridis.

How Does The Concentration Of Gibberellic Acid (Ga3) Impact The Growth Of Different Setaria Viridis Mutants?, Liz Ritenhour, Gracey Horn, Lawson Veit, Grant Juris, Rodrigo Suarez Almajano

2026 Student Academic Showcase

We tested the relationship between gibberlin and plant growth through the use of gibberellic acid and different dwarf millet variants. Subjects were split into two groups: group one with no gibberellic acid application, and group two with periodic gibberellic application. Each group consisted of 17 pots. Each row held one mutant variant, while the bottom left pot was removed to store water. The objective was to have significant data by the end of the semester to prove the relevant relationship of gibberellin and plant growth.

Growth Effects Of Gibberellin Acid On Seteria Viridis, Isabella Calmet, Jamie Karase, Riley Massey, Allsion Schrumpf, Molly Suppa

2026 Student Academic Showcase

This study examined the effects of gibberellic acid (GAs) on growth in dwarf mutant families of Setaria viridis, a model grass species used to investigate hormone-regulated plant development. Dwarf phenotypes in grasses are often associated with disruptions in gibberellin biosynthesis or signaling, making them ideal for evaluating hormone response. Eight mutant families were analyzed using a paired experimental design, where each family was equally distributed between a control group and a GAs-treated group. Seeds were planted in pots with four seeds per pot, maintaining consistent representation of each family across treatments. During the third week of growth, the treatment group …

Effects Of Gibberellic Acid (Ga3) On Growth In Setaria Viridis Mutant Families, Rebecca Laird, Charmaine Dao, Kayneisha Hepburn, Madison Brown, Hailey Veninga

2026 Student Academic Showcase

The grass Setaria viridis has frequently been employed in research due to its short life cycle, small genome, and close relationship to food crops like maize (corn). Setaria is utilized to study the genetic processes governing reproductive development. In this experiment, the effects of gibberellic acid (GA) therapy on several Setaria viridis mutant families have been investigated. This experiment also aims to detect variations in plant height phenotype by comparing GA-treated plants with untreated control plants. The researchers collected and planted eight dwarf millet seeds and one wild type mutant seed and planted in a ‘control’ tray and a ‘treatment’ …

Effects Of Spatially Targeted Fertilizer Strategies On Canopy Growth Across Contrasting Tart Cherry Orchard Sites, Kurt Wedegaertner, Brent Black, Matt Yost, Grant Cardon

Plants, Soils and Climate Student Research

Variable-rate fertilization is increasingly promoted in perennial orchard systems, but its effectiveness remains difficult to predict because tree responses are often inconsistent and strongly conditioned by site-specific constraints. To address this, we evaluated soil-based and vigor-based zoning frameworks across four commercial tart cherry (Prunus cerasus) orchards representing contrasting soil conditions, canopy structures, and management histories. Within each orchard, management zones were defined using either soil apparent electrical conductivity (ECa) or satellite-derived canopy vigor. Fertilization strategies were implemented by varying fertilizer application timing among zones using split-application approaches while maintaining a constant total fertilizer rate. Tree-level canopy structure was …

Impact Of Pvc Microplastics On The Growth Of Raphanus Sativus, Olivia Fawkes, Alissia D. Fulton, Darlene Panvini

SPARK Symposium Presentations

Microplastics have emerged as a growing concern due to their increasing prevalence in terrestrial ecosystems. Understanding how microplastics affect plant growth is crucial for the agricultural industry, as crop productivity and soil quality have a direct impact on food security and farm sustainability. This study examined the impact of polyvinyl chloride (PVC) microplastics on the germination and growth rate of Raphanus sativus. Seeds were grown for six weeks in a controlled growth chamber in petri plates and soil pots containing varying concentrations of PVC microplastics (0, 25, 50, 75, 100 mg/L), including untreated PVC and PVC artificially weathered through …

On The Transport Of Chloroplast Lipids, Cailin Smith

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Chloroplasts are green, photosynthetically active organelles ubiquitous to the plant kingdom. Owing to their cyanobacterial origin, chloroplasts consist of three membranes: the outer envelope, the inner envelope, and the thylakoid, the latter of which is the site of the light-dependent reactions of photosynthesis. Not only do the lipids that make up these membranes delineate aqueous compartments, but they also respond dynamically to developmental and environmental cues, constitute the matrix that scaffolds protein machinery, and even serve as functional components of some proteinaceous complexes. However, while lipids are of vital importance to the structure and function of the chloroplast, the mechanisms …

Transgenic Plant Cells For The Cost-Effective Production Of Pharmaceutical Proteins, Maria Gambaro

Create@State

Plant-based systems are becoming an important method for producing pharmaceutical proteins because they can be more cost-effective, and safer compared to traditional production methods which commonly use mammalian cells. This project aims to develop a transgenic plant cell system that can produce a pharmaceutical protein using molecular cloning techniques. A transgenic plant cell has the DNA of another plant integrated into its genome, altering its gene expression to produce different proteins. To begin, a plasmid carrying the gene of interest and the DNA components needed for expression will be designed. The plasmid will then be used to introduce the gene …

Considerations For Microbial Inoculation Under Dryland Stress Conditions, Benedict Odinaka Okorie

Plants, Soils and Climate Student Research

Microbial inoculants are critical for sustainable crop production in dryland agriculture. However, several limitations (drought, heat, salinity, nutrient deficiency, etc.) of drylands and soil variability limit their consistent performance. Climate, soil properties (pH, texture, etc.), and their interactions are strong filters for microbial communities, functions, and activities across multiple scales, regions, and ecosystems. This review discusses several considerations of the peculiarities of drylands that must be factored into microbial formulations and inoculations decisions. Blanket/universal microbial formulations, inoculation methods, timings, and rates generally approach microbial, plant, and soil functions in isolation. This masks the complex microbial, soil, plant, environmental interactions, and …

Evaluating The Impact Of Residential Landscape Audits Using 5-Second Water Use Data, Mahmud Aveek, Camilo J. Bastidas Pacheco, David E. Rosenberg, Jeffery S. Horsburgh, Kelly Kopp, Belize A. Lane

Civil and Environmental Engineering Student Research

We used 5-s water use data to evaluate the effectiveness of residential landscape water audits in summer 2022. Fifty-nine households in two northern Utah cities were monitored for 2–5 weeks before and 3–10 weeks after an audit. We found that the distribution of weekly irrigation volumes postaudit was statistically less than the distribution preaudit (significant at the 1.9E10-5 level). Collectively, the participants reduced their landscape irrigation water use by approximately 379,000 L per week (100,300 gal per week; 0.3 acre-feet per week). We also analyzed changes in irrigation event volume, duration, frequency, and the number of days between events at …

Potential Applications Of Thymus Vulgaris In Dental Care: A Review Of Antimicrobial And Oral Health Benefits, Lakenzia Z. Ham

Undergraduate Research Conference

This research proposal focuses on how common thyme (Thymus vulgaris) can be used in dental care. There has been more interest in natural products for dental health because some common dental treatments can have side effects or lead to antibiotic resistance. Thyme contains natural compounds like thymol and carvacrol that help kill bacteria, reduce inflammation, and prevent buildup on teeth.

The purpose of this study is to investigate the current scientific literature to see the effectiveness of thyme in preventing common oral health problems like cavities, gum disease, and bad breath. Research shows that thyme can fight bacteria …

From Garden To Laboratory: The Scientific Significance Of Zinnia Elegans, Katelyn G. Klark

Undergraduate Research Conference

Zinnia elegans is a flowering species in the Asteraceae family that originated in Mexico and eventually spread to Europe (Burlec et al., 2019). This species' vast array of colors, drought resistance, and other agricultural benefits make this plant highly sought after in gardens worldwide (Burlec et al., 2019). However, following the methodology of a preliminary research literature review, recent scientific research suggests that Z. elegans may possess significance beyond its aesthetic appeal. This literature review aimed to examine recent scientific findings regarding zinnias and their potential agricultural, medicinal, and genetic applications. To explore these possibilities, recent scientific studies were examined …

Evaluating Differences In The Dynamic Growth Patterns Of Cvi And Ler Genetic Strains Of Arabidopsis During Seedling Establishment, Emily Frost

Undergraduate Research Symposium (2026- )

Seedling establishment is the process by which seedlings transition from depending on seed nutrients to making their own through photosynthesis. An important aspect is photomorphogenesis, the growth of plants in response to light, transitioning from rapid embryonic stem growth to a slower rate focused on root growth and leaf formation. The process is influenced by many genetic and environmental factors, making better characterization essential to understand plant development. For our research, we examined the dynamic growth of two Arabidopsis genetic strains (Cvi and Ler) over time in response to darkness, then to the change in response when light is introduced. …

High Germinability Can Facilitate Recovery Of Adelia Vaseyi (Euphorbiaceae), An Imperiled Tamaulipan Thornscrub Shrub, Saroj Dhakal, Bashira Chowdhury, Alejandro Fierro-Cabo

School of Earth, Environmental, & Marine Sciences Faculty Publications

While critical to maintaining dryland biodiversity and drought resilience, reforestation has been limited in subtropical dry forests because of knowledge gaps in seed biology that must be filled to upscale seedling production and ensure recovery of imperiled endemic plants. We characterized seed germination, dormancy, and storage needs for Adelia vaseyi, a threatened endemic shrub commonly included in planting mixes to restore Tamaulipan thornscrub, an imperiled subtropical forest spanning South Texas and Northeastern Mexico. We found A. vaseyi seeds have high germinability (82.0%) and a short mean germination time (3.04 ± 0.08 days). A delia vaseyi seed does not appear …

Comparing The Effect Of Varying Concentrations Of Polytetrafluoroethylene On The Length And Fresh Weight Of Salvinia Minima, Talha Islam

Caroliniana Undergraduate Research Journal

The increasing usage of fluoropolymer pollution in aquatic environments has increased concerns about the ecological consequences of materials such as polytetrafluoroethylene (PTFE), commonly known as Teflon. In the past decade, the usage of Teflon in American homes across the United States has risen by 37.7%, resulting in large amounts of aquatic pollution due to improper disposal of these harmful substances (Török et al., 2020). Although PTFE is chemically inert, its accumulation in freshwater systems can introduce matter that physically interacts with aquatic organisms. This study examined how varying concentrations of PTFE suspensions affect the growth of Salvinia minima, a …

Pleistocene Glacial Effects On North American Phylogeographic Patterns, Noah Garland, Ingrid Jordon-Thaden

Scholars Week

The biodiversity of alpine ecosystems are grossly underestimated, in turn threatening habitat loss. Much work is needed in this respect to better understand the process of speciation and extinction in these environments, given the threat of global climate change. We are testing hypothesis regarding rapid radiation of plant lineages both into and out of refugia in the context of dispersal during post-glacial and inter-glacial periods, focusing on the phylogeny of trans-Beringian alpine plant species by observing circumpolar lineages extending into southern portions of the North American Cordillera, the Rocky Mountains and the Intermountain Region.  Focal taxa include species of Draba …

Impact Of One Nucleotide On Organ Enumeration And Phyllotaxy In Arabidopsis Thaliana, Hazel R. Frans, Tara Phelps-Durr

SACAD: Scholarly Activities

Arabidopsis thaliana is a model organism used by scientists to study plant genetics, development, and physiology. CRISPR-Cas9 is a biotechnology tool adapted from a bacterial defense mechanism to precisely edit DNA using a guide mRNA and a Cas9 protein. This project aims to create CRISPR-CAS9 mutations in the APETALA3 (AP3) gene of the model plant Arabidopsis thaliana. AP3 is a class B gene critical to the petal and stamen development of Arabidopsis flowers. The AP3 protein contains a MADS domain, which binds directly to DNA and may be responsible for the expression of the CaRG-box genes. AP3 works in conjunction …

Screening Biostimulants To Enhance Early Growth Of Tomato (Solanum Lycopersicum L.) Under Water-Limited Conditions, Claudia Garrido-Ruiz, James Frisby, Amita Kaundal, Youping Sun, Milena Maria Tomaz De Oliveira

Plants, Soils, and Climate Faculty Publications

Biostimulants offer a sustainable strategy to improve plant growth and stress resilience, particularly under limited water availability. We evaluated seven biostimulant treatments, including beneficial bacteria, mycorrhizal fungi, seaweed extract with humic acid, and their combinations, on early growth and physiological responses of tomato (Solanum lycopersicum L.) under well–watered and drought-stressed conditions. Plants were assessed before and after a seven-day controlled drought period using a range of morphological and physiological traits, including height, effective quantum yield of PSII (Φ_PSII), stomatal conductance (g_s), and leaf pigment profile. Results showed that microbial treatments that included Bacteria + …

The Highs And Lows Of Life In A Valley: Topographic Controls On Tundra Vegetation In A Warming Arctic, Ruth S. Dunlap

Biology Honors Projects

Topographic heterogeneity structures Arctic plant communities, impacting broader ecosystem responses to climate change. The role of topography in shaping leaf physiological, nutritional, and structural traits in the Arctic is important, yet not well characterized across diverse tundra landscapes. To address these controls, we examined plant community composition and measured leaf traits in a few representative species along a heath-slope-valley gradient in Varanger, Norway. Our results indicated that valleys are more biodiverse, driven by forb and graminoid dominance, whereas slopes and heaths had less diversity with high shrub abundance. Leaf physiology and structural traits did not vary across topographic positions, though …