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Articles 181 - 205 of 205
Full-Text Articles in Life Sciences
Comparing Infiltration Rates In Soils Managed With Conventional And Alternative Farming Methods: A Meta-Analysis, Andrea D. Basche, Marcia S. Delonge
Comparing Infiltration Rates In Soils Managed With Conventional And Alternative Farming Methods: A Meta-Analysis, Andrea D. Basche, Marcia S. Delonge
Department of Agronomy and Horticulture: Faculty Publications
Identifying agricultural practices that enhance water cycling is critical, particularly with increased rainfall variability and greater risks of droughts and floods. Soil infiltration rates offer useful insights to water cycling in farming systems because they affect both yields (through soil water availability) and other ecosystem outcomes (such as pollution and flooding from runoff). For example, conventional agricultural practices that leave soils bare and vulnerable to degradation are believed to limit the capacity of soils to quickly absorb and retain water needed for crop growth. Further, it is widely assumed that farming methods such as no-till and cover crops can improve …
Predicting Longitudinal Traits Derived From High-Throughput Phenomics In Contrasting Environments Using Genomic Legendre Polynomials And B-Splines, Mehdi Momen, Malachy T. Campbell, Harkamal Walia, Gota Morota
Predicting Longitudinal Traits Derived From High-Throughput Phenomics In Contrasting Environments Using Genomic Legendre Polynomials And B-Splines, Mehdi Momen, Malachy T. Campbell, Harkamal Walia, Gota Morota
Department of Agronomy and Horticulture: Faculty Publications
Recent advancements in phenomics coupled with increased output from sequencing technologies can create the platform needed to rapidly increase abiotic stress tolerance of crops, which increasingly face productivity challenges due to climate change. In particular, high-throughput phenotyping (HTP) enables researchers to generate large-scale data with temporal resolution. Recently, a random regression model (RRM) was used to model a longitudinal rice projected shoot area (PSA) dataset in an optimal growth environment. However, the utility of RRM is still unknown for phenotypic trajectories obtained from stress environments. Here, we sought to apply RRM to forecast the rice PSA in control and water-limited …
Can Ratoon Cropping Improve Resource Use Efficiencies And Profitability Of Rice In Central China?, Shen Yuan, Kenneth G. Cassman, Jianliang Huang, Shaobing Peng, Patricio Grassini
Can Ratoon Cropping Improve Resource Use Efficiencies And Profitability Of Rice In Central China?, Shen Yuan, Kenneth G. Cassman, Jianliang Huang, Shaobing Peng, Patricio Grassini
Department of Agronomy and Horticulture: Faculty Publications
Identifying cropping systems with small global warming potential (GWP) per unit of productivity is important to ensure food security while minimizing environmental footprint. During recent decades, double-season rice (DR) systems in central China have progressively shifted into single-crop, middle-season rice (MR) due to high costs and labor requirements of double-season rice. Ratoon rice (RR) has been proposed as an alternative system that reconciliates both high annual productivity and relatively low costs and labor requirements. Here we used onfarm data collected from 240 farmer fields planted with rice in 2016 to evaluate annual energy balance, environmental impact, and net profit of …
Island Invasion: The Silent Crisis In Hawaii, Sophia Janssen
Island Invasion: The Silent Crisis In Hawaii, Sophia Janssen
Pomona Senior Theses
Keeping out invasive species may, upon first review, seem like a trivial environmental cry from ecologists and deep environmentalists; a belated wish to return to an undeveloped world where nature was pristine. However invasive species create problems that impact all of us and can have far more severe consequences than changing a stunning landscape. These problems are heightened in islands like Hawaii, where the fragile ecosystems have developed over centuries of evolution and adaptation. The introduction of a disease-carrying mosquito can put the people of Hawaii at risk to many vector-born illnesses and create an epidemic, taking human life. The …
Contents, Discovery Editors
Contents, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
The Effects Of Eicosapentaenoic Acid (Epa) And Docosahexaenoic Acid (Dha) On Brown Adipogenesis In Stem Cell Culture, Darynne A. Dahlem, Yan Huang
The Effects Of Eicosapentaenoic Acid (Epa) And Docosahexaenoic Acid (Dha) On Brown Adipogenesis In Stem Cell Culture, Darynne A. Dahlem, Yan Huang
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Polyunsaturated fatty acids (PUFAs), especially eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are major maternal dietary supplements due to their positive benefits on neurological tissue growth during the first 12 weeks of gestation. Previous studies show that EPA and DHA inhibit muscle formation but promote adipogenesis. However, no research has addressed the question whether high intake of EPA and DHA affects brown fat development during gestation. The objective of this study was to measure the effect of EPA and DHA supplement on brown adipogenesis and potential pathways related to mitochondrial biosynthesis using fibroblasts as in vitro model. Using Oil-Red-O staining …
Instructions For Authors, Discovery Editors
Instructions For Authors, 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 20 2019, Several Authors
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 20 2019, Several Authors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
A Message From The Associate Dean Of The Honors College And Co-Chair Of The Service Learning Initiative, Jennie Popp
A Message From The Associate Dean Of The Honors College And Co-Chair Of The Service Learning Initiative, Jennie Popp
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
2018 Seedless Pickling Cucumber Variety Trial, Ben Phillips
2018 Seedless Pickling Cucumber Variety Trial, Ben Phillips
Midwest Vegetable Trial Reports
No abstract provided.
2018 Melon Variety Trial In Southwestern Indiana, Wenjing Guan, Dan Egel, Dennis Nowaskie, Curtis Marchino, Bhimu Patil, Kevin Crosby
2018 Melon Variety Trial In Southwestern Indiana, Wenjing Guan, Dan Egel, Dennis Nowaskie, Curtis Marchino, Bhimu Patil, Kevin Crosby
Midwest Vegetable Trial Reports
No abstract provided.
High Tunnel Summer Squash And Zucchini Cultivar Trial, 2018, Rachel Rudolph, John Walsh
High Tunnel Summer Squash And Zucchini Cultivar Trial, 2018, Rachel Rudolph, John Walsh
Midwest Vegetable Trial Reports
No abstract provided.
Yield Of Nine Summer Squash Varieties In Southwest Michigan, Ron G. Goldy, Kyle Ferrantella
Yield Of Nine Summer Squash Varieties In Southwest Michigan, Ron G. Goldy, Kyle Ferrantella
Midwest Vegetable Trial Reports
No abstract provided.
Evaluation Of Heritage Beans In West Virginia, Lewis Jett, Silas Childs
Evaluation Of Heritage Beans In West Virginia, Lewis Jett, Silas Childs
Midwest Vegetable Trial Reports
No abstract provided.
Evaluating No-Till Tomatoes Within A High Tunnel In West Virginia, Lewis Jett, Brian Sparks
Evaluating No-Till Tomatoes Within A High Tunnel In West Virginia, Lewis Jett, Brian Sparks
Midwest Vegetable Trial Reports
No abstract provided.
2018 Pumpkin Variety Trial, Nathan R. Johanning
2018 Pumpkin Variety Trial, Nathan R. Johanning
Midwest Vegetable Trial Reports
No abstract provided.
Minimal Water Requirements Of Cool-Season Turfgrasses For Survival And Recovery After Prolonged Drought, Mu Hong, Dale Bremer, Steve Keeley
Minimal Water Requirements Of Cool-Season Turfgrasses For Survival And Recovery After Prolonged Drought, Mu Hong, Dale Bremer, Steve Keeley
Kansas Agricultural Experiment Station Research Reports
Sodded tall fescue (TF) and Kentucky bluegrass (KBG) turfgrasses were exposed to prolonged drought at several levels of deficit irrigation from 0% to 50% of reference evapotranspiration (ET) within the first year of establishment. Tall fescue watered at 40% and 50% ET maintained minimally acceptable performance longer during the dry-down phases and recovered faster after rewatering than lower ET treatments. Tall fescue with no water input (0% ET) maintained minimally acceptable performance for about 5 weeks, which was longer than KBG watered at 50% ET, which remained acceptable for less than 3 weeks during the dry down. Although KBG watered …
2017 National Turfgrass Evaluation Program Perennial Ryegrass Test: 2018 Data, Mingying Xiang, Jack Fry
2017 National Turfgrass Evaluation Program Perennial Ryegrass Test: 2018 Data, Mingying Xiang, Jack Fry
Kansas Agricultural Experiment Station Research Reports
More than 100 entries of perennial ryegrass were evaluated in the perennial ryegrass National Turfgrass Evaluation Program (NTEP) study in Manhattan, KS, in 2018. A broad variation occurred among entries. Several entries consistently ranked in the top 10 in quality from month to month.
Thermal Imaging Detects Early Drought Stress In Turfgrass Utilizing Small Unmanned Aircraft Systems, Mu Hong, Dale J. Bremer, Deon Van Der Merwe
Thermal Imaging Detects Early Drought Stress In Turfgrass Utilizing Small Unmanned Aircraft Systems, Mu Hong, Dale J. Bremer, Deon Van Der Merwe
Kansas Agricultural Experiment Station Research Reports
Plots of fairway-height creeping bentgrass were watered differently to create a gradient of drought stress from severe deficit irrigation to well-watered, under an automatic rainout shelter in Manhattan, KS. Canopy temperature (Tc) measured by a small unmanned aerial system (sUAS) predicted drought stress approximately 5 days or more before drought symptoms were evident in either turfgrass visual quality (VQ) or percentage green cover (PGC). The ability of Tc to predict drought stress was comparable to the best spectral parameters acquired by sUAS on companion flights [i.e., near infrared (NIR) and GreenBlue VI], and slightly better than with spectral data obtained …
Influence Of Herbicide Combinations And Sequential Applications On Windmillgrass (Chloris Verticillata) Control, Nicholas Mitchell, Jared Hoyle
Influence Of Herbicide Combinations And Sequential Applications On Windmillgrass (Chloris Verticillata) Control, Nicholas Mitchell, Jared Hoyle
Kansas Agricultural Experiment Station Research Reports
Windmillgrass (Chloris verticillataNutt.) populations commonly infest turfgrass systems in the midwest, which result in aesthetically unacceptable turfgrass stands. Pylex (topramezone) and Acclaim Extra (fenoxaprop) have resulted in fair control of windmillgrass with single applications. For adequate control of windmillgrass, a sequential application of Tenacity (mesotrione), three weeks after the initial application, is recommended. Additionally, studies have shown the addition of triclopyr to HPPD inhibitor herbicides increases windmillgrass control in a controlled environment. Field experiments were initiated in 2018, at the Kansas State University Rocky Ford Turfgrass Research Center in Manhattan, KS, to determine the influence of herbicide combinations …
Winter Survival Of Experimental Bermudagrasses In The Upper Transition Zone, Mingying Xiang, Jack Fry, Yanqi Wu
Winter Survival Of Experimental Bermudagrasses In The Upper Transition Zone, Mingying Xiang, Jack Fry, Yanqi Wu
Kansas Agricultural Experiment Station Research Reports
A winter with very cold temperatures in 2017–2018 allowed for good separation of standard and experimental bermudagrasses for freezing tolerance. When evaluated in May 2018, survival of commonly used cultivars was: Tifway, 0%; Latitude 36, 20%; Northbridge, 25%. Some experimental progeny had up to 98% winter survival on the same rating date.
Evaluating Large Patch-Tolerant And Cold Hardy Zoysiagrass Germplasm In The Transition Zone, Mingying Xiang, Jack Fry, Megan Kennelly
Evaluating Large Patch-Tolerant And Cold Hardy Zoysiagrass Germplasm In The Transition Zone, Mingying Xiang, Jack Fry, Megan Kennelly
Kansas Agricultural Experiment Station Research Reports
More than 2,800 zoysiagrass progeny, all having a single parent in common that exhibited tolerance to large patch, were evaluated in several transition zone states for quality characteristics and large patch tolerance. From these evaluations conducted over several years, 10 progeny have been identified for further evaluation that have good quality and large patch tolerance that is superior to Meyer zoysiagrass.
High And Low Management Input Regimes Result In Similar Net Carbon Sequestration Rates In Zoysiagrass Golf Course Fairway Turf, Ross C. Braun, Dale J. Bremer
High And Low Management Input Regimes Result In Similar Net Carbon Sequestration Rates In Zoysiagrass Golf Course Fairway Turf, Ross C. Braun, Dale J. Bremer
Kansas Agricultural Experiment Station Research Reports
This study was conducted from 2013–2016 to determine how irrigation and N fertilization may be managed to enhance carbon (C) sequestration in turf. In this study, the annual rate of change in soil organic carbon (ΔSOC) was measured under two management regimes, a high management input regime (HMI) and low management input regime (LMI), in a ‘Meyer’ zoysiagrass (Zoysia japonicaSteud.) golf course fairway.
Both management regimes maintained acceptable turf quality and at least 75% green cover during both summers. In both management regimes, soil organic carbon (SOC) increased after the 3.16-yr (1154-d) period indicating that C was sequestered …
Herbicide And Application Timing Effects On Windmillgrass (Chloris Verticillata) Control, Nicholas Mitchell, Jared Hoyle
Herbicide And Application Timing Effects On Windmillgrass (Chloris Verticillata) Control, Nicholas Mitchell, Jared Hoyle
Kansas Agricultural Experiment Station Research Reports
Windmillgrass (Chloris verticillataNutt.) populations commonly infest turfgrass systems in the midwest, which result in aesthetically unacceptable turfgrass stands. Research trials were initiated in 2017 and 2018, in Onaga and Junction City, KS, to determine windmillgrass control with various single herbicide applications at different application timings. Pylex (topramezone) resulted in more than 80% windmillgrass control 8 weeks after spring and summer application.
Evaluating The Potential Of Methyl Jasmonate Application As An Agricultural Practice On Phytochemicals In Brassica Vegetables: Sensory Quality, Cooking, And Cost-Benefit Analysis, Yu-Chun Chiu
Graduate Theses, Dissertations, and Problem Reports
In the United States, Brassica vegetables, including broccoli (Brassica oleracea var. italica) and kale (Brassica oleracea var. acephala or Brassicae napus var. pabularia), are widely consumed and are easily accessible in farmer’s market or grocery stores with increasing interest of their health-promoting properties. For example, the consumption of broccoli has been associated with anti-cancer activity in in vitro and in vivo trails due to the high content of phytochemicals, minerals, vitamins, and fibers. Application of methyl jasmonate (MeJA) has been reported to enhance the potential health-promoting compounds in Brassica vegetables, glucosinolates (GS), especially indolyl GS neoglucobrassicin …