Horticulture Commons^™

Winter Greenhouse Production And Tissue Culture Of Basil (Ocimum Spp.), Wan Wei

Theses, Dissertations, and Student Research in Agronomy and Horticulture

Basil (Ocimum spp.) is a popular annual culinary and medicinal herb contains essential oils. Numerous researchers have studied the effects of fertilizer level on the growth and oil yield of basil, but in most studies, basil was grown in the field during the summer. Our experiment was conducted in a controlled environment greenhouse using a capillary mat system during the winter with a goal of increasing dry weight for fresh produce and basil essential oil. The 7-month experiment was conducted to determine the optimal production timeline and fertilizer levels for eight basil cultivars grown in a soilless mix. We found ...

Anaerobic Soil Disinfestation: Meta-Analysis And Optimization Of Amendment Carbon Rate And C:N Ratio To Control Key Plant Pathogens And Weeds, Utsala Shrestha

Doctoral Dissertations

Anaerobic soil disinfestation (ASD) is an environmentally friendly and cost effective pre-plant soil treatment technique that allows effective control of soilborne pests by creating anaerobic conditions, particularly for specialty and organic crop production under diverse environmental conditions. In spite of being a proven technique, ASD has to be optimized to fit into local production systems with specific pathogen pressure using locally available amendments for successful implementation on a commercial scale. Our meta-analysis study on soilborne pathogens, plant parasitic nematodes, and weeds validated that ASD is an effective approach to control various soilborne pathogens. This study aims to optimize the carbon ...

Evaluating Zoysiagrass-Tall Fescue Mixtures In Kansas, Mingying Xiang, J. Fry, M. Kennelly

Kansas Agricultural Experiment Station Research Reports

Seeding zoysiagrass at 1 lb PLS/1,000 sq ft in June with subsequent seeding of tall fescue into established zoysiagrass in September at 8 lbs PLS/1,000 sq ft resulted in the best mixture of these two species.

Development Of Cold Hardy, Large Patch Resistant Zoysiagrass Cultivars For The Transition Zone, Mingying Xiang, J. Fry, M. Kennelly

Kansas Agricultural Experiment Station Research Reports

TAES 5645, a Z. japonica genotype that exhibited resistance to large patch in preliminary studies, was used as a breeding parent and crossed with 22 cold hardy zoysiagrasses, resulting in 985 progeny. These progeny were evaluated for cold hardiness and agronomic traits (establishment rate, overall quality, spring greenup, leaf texture, and genetic color) in Manhattan, KS; West Lafayette, IN; and Dallas, TX; from 2012 to 2014. From this work, 60 progeny were identified for further evaluation in larger plots. During the 2015-2016 establishment year, experimental line 6102-47 showed good vigor and spring green up rate, which is comparable to ‘Meyer ...

Preventative Control Of Brown Patch With Select Fungicides, E. Alderman, J. Reeves, J. Hoyle

Kansas Agricultural Experiment Station Research Reports

Preventative applications of Velista and Heritage Action fungicides will decrease the percentage of brown patch observed in a perennial stand of tall fescue.

Evaluating The Effects Of Simulated Golf Cart Traffic On Dormant Buffalograss And Turfgrass Colorants, E. Alderman, J. Hoyle, J. Fry, S. Keeley

Kansas Agricultural Experiment Station Research Reports

Percent green cover will ultimately decrease over time when traffic is applied to dormant buffalograss with turfgrass colorants. Data suggests that an additional five weeks of acceptable green cover can be achieved under high traffic situations when Endurant Premium is applied to dormant turf.

Late Pre-Emergent Control Of Annual Bluegrass With Flazasulfuron & Indaziflam, J. Reeves, J. Hoyle

Kansas Agricultural Experiment Station Research Reports

All applications of flazasulfuron or indaziflam resulted in acceptable control of Annual Bluegrass (Poa annua), only allowing <3% visual weed cover (VWC) in all treatments compared to the non-treated (26% VWC) up to 133 days after application (DAA).

Influence Of Glyphosate Timings On Conversion Of Golf Course Rough From Tall Fescue To ‘Sharps Improved Ii’ Buffalograss, J. Reeves, J. Hoyle, D. Bremer, S. Keeley

Kansas Agricultural Experiment Station Research Reports

All treatments, except the control that received no glyphosate application, resulted in acceptable buffalograss establishment (>90% buffalograss green cover) by 70 days after seeding (DAS). However, any treatment not sprayed prior to seeding date or that received a 7 DAS application lagged behind in establishment for 6 weeks after seeding.

2012 National Turfgrass Evaluation Program Tall Fescue Test: 2015 Data, L. Parsons, M. Kennelly, J. Griffin, J. Hoyle

Kansas Agricultural Experiment Station Research Reports

A number of the cultivars included in the 2012 National Turfgrass Evaluation Program Tall Fescue Test performed well and showed good brown patch resistance in southern Kansas during the 2015 growing season.

2013 National Turfgrass Evaluation Program Bermudagrass Test: 2015 Data, L. Parsons, J. Griffin, J. Hoyle

Kansas Agricultural Experiment Station Research Reports

Kansas represents the northernmost region in the central United States where bermudagrass can be successfully grown as a perennial turfgrass. Historically, few cultivars that have both acceptable quality and adequate cold-tolerance have been available to local growers. Because new introductions are continually being selected for improved hardiness and quality, both seeded and vegetative types need regular evaluation to determine their long-range suitability for use in Kansas.

Small Unmanned Aircraft Systems Detect Turfgrass Drought, D. Bremer, Deon Van Der Merwe

Kansas Agricultural Experiment Station Research Reports

Kansas State University is evaluating the ability of using small unmanned aircraft systems (UAS) to detect drought stress in turfgrass. Their research indicates high resolution remote sensing with small UAS can detect drought stress before it is visible to the human eye. Preliminary measurements of a golf course revealed interesting differences in fairways, tees, and greens between summer and fall seasons. Additional research will be conducted in 2016.

Nitrous Oxide Emissions And Carbon Sequestration In Turfgrass: Effects Of Irrigation And Nitrogen Fertilization (Year 1), R. Braun, D. Bremer, J. Fry

Kansas Agricultural Experiment Station Research Reports

In this study, annual nitrous oxide (N₂O) emissions were greatest in urea and least in untreated (no N) among treatments. Differences were negligible due to irrigation treatment. Irrigation levels may be decreased further in the final year to induce slight stress on the low irrigation treatment. All fertilizer treatments maintained acceptable quality, however the controlled-release fertilizer resulted in more consistent visual quality ratings compared to urea and untreated. Urea fertilizer had higher peak fluxes after fertilization and overall annual emissions than polymer-coated N-fertilizer. Thus, controlled released N fertilizers, such as polymer-coated urea, in turfgrass systems could potentially help ...

Release Of Ksuz 0802 Zoysiagrass, J. Fry, Ambika Chandra

Kansas Agricultural Experiment Station Research Reports

A new zoysiagrass cultivar, under the experimental designation KSUZ 0802, was released jointly by the Kansas Agricultural Experiment Station and Texas A&M AgriLife Research in 2015.

Evolutionary Ecology Of Weeds, 1st & 2nd Editions, Jack Dekker

Jack Dekker

Impacts Of Biofumigation And Anaerobic Soil Disinfestation On Strawberry Production, Jennifer Renee’ Wheeler

Masters Theses

Due to the phase-out of methyl bromide, there is a need for alternative, nonchemical fumigation treatments in strawberry production. Anaerobic soil disinfestation and biofumigation are two non-chemical methods for controlling soilborne plant pathogens of strawberry. This study was designed to observe strawberry fruit nutrition and soil volatiles of a strawberry field being treated with biofumigation treatments, anaerobic soil disinfestation treatments, and a combination of the two alternative methods. A trial was conducted with 11 pre-plant soil-incorporated treatments arranged in a randomized complete block design with 6 rows (blocks). Biofumigation treatments consisted of deactivated mustard meal, deoiled mustard meal, mustard pellets ...

Evaluating Pedestrial Compaction Variation & Soil Organic C Content, Gunner B. Decker

Scholars Week

Over time, playing fields are monitored by overall appearance. However, pedestrian compaction is not evenly distributed throughout the entire surface.

Pollinator Garden, Paige E. Bradley

Engagement and Service-Learning Summit

The goal of the project is to increase awareness about global climate change and the necessity of environmentally sustainable practice, particularly among the younger citizens of the Lafayette area. The Lyn Greece Boys & Girls Club extended a hand and offered us land to install a pollinator garden on their campus and an opportunity to meet with the kids one-on-one to promote sustainability ideas and help them understand the basics of gardening. The project is as local as possible, using native plants, no pesticides or herbicides, Bennett's Greenhouse (a local business), and the resources on campus to reach out to ...

Information Thermodynamics Of Cytosine Dna Methylation, Robersy Sanchez Rodriguez, Sally Ann Mackenzie

Agronomy & Horticulture -- Faculty Publications

Cytosine DNA methylation (CDM) is a stable epigenetic modification to the genome and a widespread regulatory process in living organisms that involves multicomponent molecular machines. Genome-wide cytosine methylation patterning participates in the epigenetic reprogramming of a cell, suggesting that the biological information contained within methylation positions may be amenable to decoding. Adaptation to a new cellular or organismal environment also implies the potential for genome-wide redistribution of CDM changes that will ensure the stability of DNA molecules. This raises the question of whether or not we would be able to sort out the regulatory methylation signals from the CDM background ...

Ws-2 Introgression In A Proportion Of Arabidopsis Thaliana Col-0 Stock Seed Produces Specific Phenotypes And Highlights The Importance Of Routine Genetic Verification, Mon-Ray Shao, Vikas Shedge, Hardik Kundariya, Fredric R. Lehle, Sally Ann Mackenzie

Agronomy & Horticulture -- Faculty Publications

Arabidopsis thaliana is an important model organism with a robust network of resources that has been of enormous value to the plant science research community. The use of isogenic material as a reference point or control is critical for many types of experiments in plant molecular biology and genetics. Recently, we noticed that some seed from a common source of the widely used Columbia-0 (Col-0) strain gave rise to plants showing features atypical for this strain. Whole-genome DNA-sequencing and allelespecific PCR assays confirmed that the abnormal individuals contain multiple introgressions from the ecotype Wassilewskija-2 (Ws-2), as described below. This emphasizes ...

2016 Statewide List Of Csa Farms And Organizers Serving Iowa, Savanna M. Lyons, Alice Topaloff

Extension and Outreach Publications

This directory lists 79 community supported agriculture (CSA) enterprises serving Iowa, shown by county and the 20 regions within ISU Extension and Outreach. To provide additions and modifications, please visit www.leopold.iastate.edu/csa.