Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Kansas State University Libraries

Discipline
Keyword
Publication Year
Publication
Publication Type

Articles 1 - 30 of 5007

Full-Text Articles in Life Sciences

A Systematic Literature Review Of The Intersection Between Social Media And Cultural Identity: Implications For Agricultural And Environmental Communication, Catherine E. Dobbins, Fallys Masambuka-Kanchewa, Alexa J. Lamm May 2021

A Systematic Literature Review Of The Intersection Between Social Media And Cultural Identity: Implications For Agricultural And Environmental Communication, Catherine E. Dobbins, Fallys Masambuka-Kanchewa, Alexa J. Lamm

Journal of Applied Communications

Social media has radically changed human communication patterns, impacting how people perceive scientific information. This study sought to explore how cultural identity impacts the use of, and engagement with, social media content related to agriculture and the environment. Informed by Social Representation Theory, a systematic qualitative literature review was conducted to investigate how cultural identity impacted engagement with social media sources of agricultural and environmental information. Several studies indicated differences in social media engagement between people from different cultures. However, different definitions and perspectives on cultural identity emerged with some researchers describing culture in relation to nationality and others in ...


A Moment-To-Moment Analysis Of Trust In Agricultural Messages, Lauren Elizabeth Lagrande, Courtney Meyers, R. Glenn Cummins, Matt Baker May 2021

A Moment-To-Moment Analysis Of Trust In Agricultural Messages, Lauren Elizabeth Lagrande, Courtney Meyers, R. Glenn Cummins, Matt Baker

Journal of Applied Communications

Consumers have varying levels of trust in agricultural production practices, which can influence attitudes, shift opinions, and change behaviors. The purpose of this study was to determine what agricultural messages are considered the most trustworthy among consumers and what differences exist among five dimensions of trustworthiness. With a pro-agriculture video as the stimulus, this study used continuous response measurement (CRM) to collect data from 151 post-secondary students who were randomly assigned to evaluate one of five trustworthiness dimensions (trust, honest, sincere, dependable, reliable). Participants used handheld dials to continuously rate their evaluation of the messages in the video then completed ...


Talking Plants: Examining The Role Of Podcasts In Communicating Plant Pathology Knowledge, Melissa Lim, Rebecca Swenson May 2021

Talking Plants: Examining The Role Of Podcasts In Communicating Plant Pathology Knowledge, Melissa Lim, Rebecca Swenson

Journal of Applied Communications

Extension programs must constantly evaluate communication plans and platforms to determine if they are worth the investment of time, money, and resources. Podcasts are growing in popularity as a communication platform for education and entertainment. With the VARK model of learning styles and core plant pathology concepts as a guide, researchers evaluated the prevalence and type of plant pathology information in podcasts to better understand how podcasts could benefit Extension plant pathology programs. Using keywords related to plant pathology, researchers searched popular mobile podcast listening applications and evaluated relevant podcast episodes using content analysis methods. Results indicated few podcast shows ...


Relative Efficiency Of Split-Marker Versus Double-Crossover Replacement Protocols For Production Of Deletion Mutants In Strain Ph-1 Of Fusarium Graminearum, Sladana Bec, Gabdiel E. Yulfo-Soto, Lisa J. Vaillancourt Apr 2021

Relative Efficiency Of Split-Marker Versus Double-Crossover Replacement Protocols For Production Of Deletion Mutants In Strain Ph-1 Of Fusarium Graminearum, Sladana Bec, Gabdiel E. Yulfo-Soto, Lisa J. Vaillancourt

Fungal Genetics Reports

The split-marker (SM) protocol has become a popular method for production of knockout mutations in fungi. We used Southern hybridization to compare the performance and efficiency of the SM protocol with the more traditional double-crossover intact marker (IM) method for creating deletions of the mating type genes in Fusarium graminearum. Both methods successfully produced knockouts at a rate of between 24 and 75%: the SM method produced mutants more efficiently for larger constructs (>1 kb), but it was similar to IM for a smaller construct that was 865 bp. Both methods also produced strains with additional ectopic integrations at a ...


Physical Activity Behavior Comparisons Between Adults With And Without Type 1 Diabetes, Cassandra M. Beattie, Jesse A. Stein, Katie Heinrich Apr 2021

Physical Activity Behavior Comparisons Between Adults With And Without Type 1 Diabetes, Cassandra M. Beattie, Jesse A. Stein, Katie Heinrich

Health Behavior Research

Physical activity (PA) is a widely accepted strategy to manage chronic diseases like type 1 diabetes; however, unique PA barriers likely result in lower PA levels among person(s) with type 1 diabetes (PWT1D), compared to person(s) without type 1 diabetes (PWOT1D). The integrated theory of health behavior change (ITHBC) (i.e., knowledge/beliefs, self-regulation, and self-management) provides a helpful framework for understanding PA and other health behaviors. This research aimed to determine differences in PA between adult PWT1D and PWOT1D, and characterize their PA-related behaviors using the ITHBC. Participants (N = 90; 86.7% female, 90% white) were recruited ...


No Science In Politics: A Qualitative Content Analysis Of Industrial Hemp Production In Florida Newspapers, Kevin W. Kent, Jarred A. Shellhouse, Angela B. Lindsey, Lisa K. Lundy Feb 2021

No Science In Politics: A Qualitative Content Analysis Of Industrial Hemp Production In Florida Newspapers, Kevin W. Kent, Jarred A. Shellhouse, Angela B. Lindsey, Lisa K. Lundy

Journal of Applied Communications

This study examined how Florida newspapers framed the topic of industrial hemp production before and after the 2019 state legislative session. A total of 34 articles from the state’s largest newspapers were reviewed using qualitative content analysis to discover what frames were used, what scientific sources were cited, and what opinion leaders were quoted in the discussion of industrial hemp production. The analysis revealed the most frequently used frames within the study’s timeframe focused on politics or economic potential. Only one article cited science-based information. A majority of quotes were from political leaders and policy makers. Future research ...


Soils Laboratory Manual: K-State Edition, Version 2.0, Colby J. Moorberg, David A. Crouse Feb 2021

Soils Laboratory Manual: K-State Edition, Version 2.0, Colby J. Moorberg, David A. Crouse

NPP eBooks

The Soils Laboratory Manual, K-State Edition is designed for students in undergraduate, introductory soil science courses. The manual highlights the multidisciplinary aspects of soil science with laboratories focused on soil formation, classification, and mapping; soil physics, soil biology; soil chemistry; and soil fertility and management. The lab manual includes 16 different laboratories, each one starting with an introduction and pre-lab assignment, followed by in-lab activities, and complimented by a post-lab assignment. In-lab activities involve field trips, experiments, observation stations, or problem sets. Post-lab assignments include online quizzes, problem sets, or laboratory summary reports.

Version 2 of the lab manual exhibits ...


Disruptive Technologies With Applications In Airline & Marine And Defense Industries, Randall K. Nichols, Hans C. Mumm, Wayne Lonstein, Suzanne Sincavage, Candice M. Carter, John-Paul Hood, Randall Mai, Mark Jackson, Bart Shields Feb 2021

Disruptive Technologies With Applications In Airline & Marine And Defense Industries, Randall K. Nichols, Hans C. Mumm, Wayne Lonstein, Suzanne Sincavage, Candice M. Carter, John-Paul Hood, Randall Mai, Mark Jackson, Bart Shields

NPP eBooks

Disruptive Technologies With Applications in Airline, Marine, Defense Industries is our fifth textbook in a series covering the world of Unmanned Vehicle Systems Applications & Operations On Air, Sea, and Land. The authors have expanded their purview beyond UAS / CUAS / UUV systems that we have written extensively about in our previous four textbooks. Our new title shows our concern for the emergence of Disruptive Technologies and how they apply to the Airline, Marine and Defense industries. Emerging technologies are technologies whose development, practical applications, or both are still largely unrealized, such that they are figuratively emerging into prominence from a background of nonexistence or obscurity. A Disruptive technology is one that displaces an established technology and shakes up the industry or a ground-breaking product that creates a completely new industry.That is what our book is about. The authors think we have found technology trends that will replace the status quo or disrupt the conventional technology paradigms.The authors have collaborated to write some explosive chapters in Book 5:Advances in Automation & Human Machine Interface; Social Media as a Battleground in Information Warfare (IW); Robust cyber-security alterative / replacement for the popular Blockchain Algorithm and a clean solution for Ransomware; Advanced sensor technologies that are used by UUVs for munitions characterization, assessment, and classification and counter hostile use of UUVs against U.S. capital assets in the South China Seas. Challenged the status quo and debunked the climate change fraud with verifiable facts; Explodes our minds with nightmare technologies that if they ...


Limit-Fed, High-Energy Diets Can Achieve Improved Feed Conversion Rates Without Compromising Rate Of Gain When Compared To Conventional High Roughage Diets, M. A. Scilacci, M. A. Johnson, C. E. Hissong, S. P. Montgomery, A. J. Tarpoff, E. C. Titgemeyer, L. Allen, T. G. O'Quinn, G. T. Tonsor, C. I. Vahl, D. U. Thomson, W. R. Hollenbeck, D. A. Blasi Jan 2021

Limit-Fed, High-Energy Diets Can Achieve Improved Feed Conversion Rates Without Compromising Rate Of Gain When Compared To Conventional High Roughage Diets, M. A. Scilacci, M. A. Johnson, C. E. Hissong, S. P. Montgomery, A. J. Tarpoff, E. C. Titgemeyer, L. Allen, T. G. O'Quinn, G. T. Tonsor, C. I. Vahl, D. U. Thomson, W. R. Hollenbeck, D. A. Blasi

Kansas Agricultural Experiment Station Research Reports

Objective: Compare and determine the effects on animal performance between a conventional high roughage diet and a limit-fed, high energy diet during the receiving and growing phase.

Study Description: Crossbred heifer calves (n = 418) originating from Texas and New Mexico were used to determine performance when limit-fed a high energy diet initially offered at 85% of feed intakes from cattle fed a conventional high roughage diet ad libitum at the Kansas State University Beef Stocker Unit.

The Bottom Line: Limit-feeding a high energy diet consisting primarily of dry-rolled corn and Sweet Bran (Cargill Animal Nutrition, Blair, NE) can improve rate ...


Effects Of Choline On Neutrophil Function And Inflammation In Growing Cattle With Modulated Methyl Group Status, M. S. Grant, H. D. Aufdemberge, B. J. Bradford, L. K. Mamedova, E. C. Titgemeyer Jan 2021

Effects Of Choline On Neutrophil Function And Inflammation In Growing Cattle With Modulated Methyl Group Status, M. S. Grant, H. D. Aufdemberge, B. J. Bradford, L. K. Mamedova, E. C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Objective: This study was conducted to evaluate the effects of supplemental choline in combination with guanidinoacetic acid or creatine on immune cell function and inflammation in growing cattle.

Study Description: Six ruminally-cannulated Holstein steers (321 lb) were utilized in an experiment where each steer received each of six treatments. Treatments were given via abomasal infusion of a 0 or 5 g/day of supplemental choline, and either a saline solution (control); 15 g/day guanidinoacetic acid; or 16.8 g/day of creatine, with all treatment combinations represented. Steers were fed a corn-based diet. Blood was collected during each period ...


Differences In Rumination And Animal Activity Can Be Quantified By Utilizing New Technologies, M. A. Scilacci, A. J. Tarpoff, E. C. Titgemeyer, T. G. O'Quinn, T. Jennings, C. I. Vahl, D. U. Thomson, W. R. Hollenbeck, D. A. Blasi Jan 2021

Differences In Rumination And Animal Activity Can Be Quantified By Utilizing New Technologies, M. A. Scilacci, A. J. Tarpoff, E. C. Titgemeyer, T. G. O'Quinn, T. Jennings, C. I. Vahl, D. U. Thomson, W. R. Hollenbeck, D. A. Blasi

Kansas Agricultural Experiment Station Research Reports

Objective: Utilizing new technologies such as Allflex eSense Ear Tags to (Allflex Livestock Intelligence, Madison, WI) evaluate the impacts of limit feeding a high-energy diet in the backgrounding phase on daily rumination and activity in growing cattle.

Study Description: This project was conducted in conjunction with the performance backgrounding study at the Kansas State University Beef Stocker Unit in 2019. Crossbred heifers (n = 418) were outfitted with an ear tag that measured rumination and activity throughout the day and the 84-day backgrounding study. This data was continuously collected via an onsite antenna, downloaded to a computer, and analyzed in a ...


Nitrogen Fertilizer Timing And Phosphorus And Potassium Fertilization Rates For Established Endophyte-Free Tall Fescue, D. W. Sweeney, J. K. Farney, J. L. Moyer, D. A. Ruiz Diaz Jan 2021

Nitrogen Fertilizer Timing And Phosphorus And Potassium Fertilization Rates For Established Endophyte-Free Tall Fescue, D. W. Sweeney, J. K. Farney, J. L. Moyer, D. A. Ruiz Diaz

Kansas Agricultural Experiment Station Research Reports

Tall fescue production was measured during the third production year of a study with locations started in fall of 2016 and fall of 2017. Phosphorus (P) fertilization rate af­fected spring harvest yield at Site 1, but not at Site 2. Applying nitrogen (N) in late fall or late winter resulted in greater spring yields than applying N in spring or not applying N. However, fall harvest yields at Site 1 were greater with spring N application, but not at Site 2. The third-year tall fescue total yield rank as affected by N fertilizer timing was late winter>late fall ...


Yearling Cattle Grazing Pastures Burned During Summer Perform Similarly To Cattle Grazing Pastures Burned In Early Spring: Year 2 Of 6, Z. M. Duncan, A. J. Tajchman, M. P. Ramirez, J. Lemmon, W. R. Hollenbeck, D. A. Blasi, K C. Olson Jan 2021

Yearling Cattle Grazing Pastures Burned During Summer Perform Similarly To Cattle Grazing Pastures Burned In Early Spring: Year 2 Of 6, Z. M. Duncan, A. J. Tajchman, M. P. Ramirez, J. Lemmon, W. R. Hollenbeck, D. A. Blasi, K C. Olson

Kansas Agricultural Experiment Station Research Reports

Objective: The objective was to evaluate the impact of prescribed fire timing on grazing performance of yearling beef cattle in the Kansas Flint Hills.

Study Description: This study was conducted at the Kansas State University Beef Stocker Unit. Yearling stocker cattle were assigned randomly to one of three prescribed-burn treatments: spring (April 7 ± 2.1 days), summer (August 21 ± 5.7 days), or fall (October 2 ± 9.9 days) and grazed from May to August of 2019 and 2020. Individual body weights were recorded at the beginning and end of the grazing season to determine total body weight gain and ...


Relationships Among Terminal Traits And Sale Prices Of Red Angus Bulls Sold At Auction From 2017 Through 2019, M. J. Smith, K. E. Fike, M. E. King, E. D. Mccabe, G. M. Rogers, K. G. Odde Jan 2021

Relationships Among Terminal Traits And Sale Prices Of Red Angus Bulls Sold At Auction From 2017 Through 2019, M. J. Smith, K. E. Fike, M. E. King, E. D. Mccabe, G. M. Rogers, K. G. Odde

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to evaluate the influence of terminal traits in the form of selection indices and expected progeny differences on the sale price of Red Angus Bulls sold at auction from 2017 through 2019 across the United States.

Study Description: Information describing factors about Red Angus bulls marketed through auctions were obtained from the Red Angus Association of America (Commerce City, CO) in an electronic format. Data were collected for 21,362 Red Angus bulls offered for sale from 2017 through 2019. Multiple regression models were developed using backward selection procedures to examine the effect ...


Effects Of Late Summer Prescribed Fire On Botanical Composition, Soil Cover, And Forage Production In Caucasian Bluestem-Infested Rangeland In The Kansas Smoky Hills: Year 2 Of 4, M. P. Ramirez, A. J. Tajchman, Z. M. Duncan, J. Lemmon, K C. Olson Jan 2021

Effects Of Late Summer Prescribed Fire On Botanical Composition, Soil Cover, And Forage Production In Caucasian Bluestem-Infested Rangeland In The Kansas Smoky Hills: Year 2 Of 4, M. P. Ramirez, A. J. Tajchman, Z. M. Duncan, J. Lemmon, K C. Olson

Kansas Agricultural Experiment Station Research Reports

Objective: The objective was to document the effects late-summer prescribed fire on soil cover, botanical composition, and forage production in the Kansas Smoky Hills and the associated effects on dense Caucasian bluestem (Bothriochloa bladhii) stands therein.

Study Description: The study took place on a private ranch in Ellsworth County, in the Kansas Smoky Hills. Eighteen one-acre plots were assigned randomly to one of three prescribed-fire treatments: no burn, single burn (i.e., one burn treatment only in 2019), or biennial burn (i.e., two burn treatments in 2019 and 2021). Soil cover, plant composition, and forage production were evaluated annually ...


Managing The Intake Of Mineral Supplements That Contain Feed Additives For Beef Calves Grazing Flint Hills Native Grass Pasture Is Important, R. L. Allison, Z. M. Duncan, C. E. Schneider, W. R. Hollenbeck, K. J. Suhr, B. J. Dedrickson, D. A. Blasi Jan 2021

Managing The Intake Of Mineral Supplements That Contain Feed Additives For Beef Calves Grazing Flint Hills Native Grass Pasture Is Important, R. L. Allison, Z. M. Duncan, C. E. Schneider, W. R. Hollenbeck, K. J. Suhr, B. J. Dedrickson, D. A. Blasi

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to determine the efficacy of mineral supplementation programs that provide a performance-enhancing antibiotic for improving growth of stocker calves grazing native grass pastures in the Flint Hills region of Kansas.

Experimental Procedures: A 91-day grazing study was conducted at the Kansas State University Beef Stocker Unit starting in May 2020 utilizing 314 Brahman influenced crossbred steers (739.57 ± 10.54 lb) from Gorman, TX. Steers were randomized and allocated across 18 pastures and randomly assigned to three treatments groups with six replications (paddocks) per group. The treatments assessed consisted of standard free-choice mineral ...


Subsequent Carcass Merit Of Feedlot Cattle May Be Improved By Limit Feeding A High-Energy Diet During The Backgrounding Phase, M. A. Scilacci, M. A. Johnson, C. E. Hissong, S. P. Montgomery, T. G. O'Quinn, A. J. Tarpoff, E. C. Titgemeyer, K. Montgomery, G. T. Tonsor, C. I. Vahl, D. U. Thomson, W. R. Hollenbeck, D. A. Blasi Jan 2021

Subsequent Carcass Merit Of Feedlot Cattle May Be Improved By Limit Feeding A High-Energy Diet During The Backgrounding Phase, M. A. Scilacci, M. A. Johnson, C. E. Hissong, S. P. Montgomery, T. G. O'Quinn, A. J. Tarpoff, E. C. Titgemeyer, K. Montgomery, G. T. Tonsor, C. I. Vahl, D. U. Thomson, W. R. Hollenbeck, D. A. Blasi

Kansas Agricultural Experiment Station Research Reports

Objective: Determine and analyze the impact of limit feeding a high-energy diet in the backgrounding phase, primarily based on dry-rolled corn and Sweet Bran (Cargill Animal Nutrition, Blair, NE), on animal performance in the finishing phase and carcass merit.

Study Description: This project was a continuation of the performance backgrounding study previously conducted at the Kansas State University Beef Stocker Unit. All cattle were shipped to Pratt Feeders (Pratt, KS) on August 26–27, 2019, and were fed in four separate feed groups (approximately 100 head/pen) according to standard operating practices at the feed yard. Original backgrounding treatment integrity ...


Investigating The Contribution Of Mature Collagen Crosslinks To Cooked Meat Toughness Using A Stewed Beef Shank Model, W. Wu, A. A. Welter, C. K. Chun, T. G. O'Quinn, G. Magnin-Bissel, M. D. Chao Jan 2021

Investigating The Contribution Of Mature Collagen Crosslinks To Cooked Meat Toughness Using A Stewed Beef Shank Model, W. Wu, A. A. Welter, C. K. Chun, T. G. O'Quinn, G. Magnin-Bissel, M. D. Chao

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to investigate mature collagen crosslink densities and their relationship to connective tissue texture using a stewed beef shank model.

Study Description: Connective tissue texture, Warner-Bratzler shear force, and collagen content and characteristics were measured for six different beef shank cuts from eight U.S. Department of Agriculture Low Choice beef carcasses (n = 48).

Results: Deep digital flexor from the foreshank had the toughest connective tissue texture, greatest Warner-Bratzler shear force value, most cooked collagen content, one of the greatest insoluble collagen percentages, as well as greatest raw and cooked pyridinoline densities among all ...


Comparison Of The Physical Attributes Of Plant-Based Ground Beef Alternatives To Ground Beef, K. M. Harr, S. G. Davis, S. B. Bigger, D. U. Thomson, M. D. Chao, J. L. Vipham, M. D. Apley, S. M. Ensley, M. D. Haub, M. D. Miesner, A. J. Tarpoff, K C. Olson, T. G. O'Quinn Jan 2021

Comparison Of The Physical Attributes Of Plant-Based Ground Beef Alternatives To Ground Beef, K. M. Harr, S. G. Davis, S. B. Bigger, D. U. Thomson, M. D. Chao, J. L. Vipham, M. D. Apley, S. M. Ensley, M. D. Haub, M. D. Miesner, A. J. Tarpoff, K C. Olson, T. G. O'Quinn

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to evaluate the physical attributes of three different plant-based, ground beef alternatives in comparison to ground beef of three different fat percentages.

Study Description: Ground beef of three different fat percentages, a retail pea protein-based ground beef alternative, and a traditional soy-based ground beef alternative were obtained from retail stores (n = 15 lots/treatment). Samples from 15 lots of a foodservice soy protein-based ground beef alternative were obtained from a foodservice chain. All samples were fabricated into 0.25 lb patties assigned to one of four assays: color analysis, texture profile analysis, shear ...


Evaluation Of Implants, Clover, And Fescue Variety On Stocker Steers, Z. T. Buessing, J. K. Farney Jan 2021

Evaluation Of Implants, Clover, And Fescue Variety On Stocker Steers, Z. T. Buessing, J. K. Farney

Kansas Agricultural Experiment Station Research Reports

Sixty-four growing steers were used in a split-plot experiment, where the whole plot was pasture, and the split-plot was implants. Whole plot treatment was a 4 × 2 facto­rial with four levels of fescue (High Endophyte, Low Endophyte, Novel, or Endophyte Free) and two levels of legume (Legumes or No Legumes). The split-plot included four implant levels (No Implant, Synovex One Grass, Revalor-G, Ralgro). Data collected were weights, hair coat scores, hair length, rectal temperature (every 28 days), and ultrasound carcass characteristics coming off grass. Steers on High Endophyte had the lowest average daily gain (ADG), longest hair, and highest ...


Form Of Supplement And Addition Of Ionophore Effects On Steer Performance While Grazing Bromegrass And Subsequent Effects In Feedlot And Carcass Measures, J. K. Farney, K. Malone Jan 2021

Form Of Supplement And Addition Of Ionophore Effects On Steer Performance While Grazing Bromegrass And Subsequent Effects In Feedlot And Carcass Measures, J. K. Farney, K. Malone

Kansas Agricultural Experiment Station Research Reports

Stocker steers were grazed on bromegrass from April to the end of August and were supplemented with several different forms of products. Treatment structure was a 2 × 2 + 2 factorial (six total treatments). Treatments evaluated included mineral only; free-choice supplementation in the form of liquid feed (MIX30) or block format (Mintrate); hand-fed supplement of corn:dried distillers grains at 0.25% of body weight on a dry matter basis offered three times per week; and ionophore (Rumensin) was included in one block and hand-fed supplement. Steers were weighed every 28 days while on grass and in the feedlot. Steers were ...


Bermudagrass Fertility Trial In Southeast Kansas, 2020, D. Helwig, M. Haywood, J. K. Farney, B. C. Pedreira, G. F. Sassenrath Jan 2021

Bermudagrass Fertility Trial In Southeast Kansas, 2020, D. Helwig, M. Haywood, J. K. Farney, B. C. Pedreira, G. F. Sassenrath

Kansas Agricultural Experiment Station Research Reports

In 2020 a bermudagrass fertility study was conducted at the K-State Research and Ex­tension experiment station outside of Columbus, KS. The purpose of the study was to simulate forage producer practices of managing bermudagrass and determine how each practice affects forage production and quality. Addition of fertilizer, and mowing were tested to determine the impact on forage biomass production and quality. Fertilizer increased both biomass production and forage quality. However, greater improvements in forage quality were observed by mowing the bermudagrass.


Southeast Kansas Wheat Variety Test Results - 2020, G. F. Sassenrath, L. Mengarelli, J. Lingenfelser, X. Lin Jan 2021

Southeast Kansas Wheat Variety Test Results - 2020, G. F. Sassenrath, L. Mengarelli, J. Lingenfelser, X. Lin

Kansas Agricultural Experiment Station Research Reports

This is a summary of the winter wheat production conditions in southeast Kansas in 2019-2020 and the results of the variety testing. Fifteen hard red and ten soft red winter wheat varieties were compared for yield and test weight. High spring rainfall increased disease pressure; cultivars were rated for Fusarium head blight and stripe rust. Average yield of hard red wheat varieties was above average at 81.1 bu/acre across all varieties. Soft red wheat yield was 102.4 bu/acre across all varieties. For comparison, previous variety yield results are reported from 2016, 2017, and 2018.


Crop Production 2020 – Corn, Sorghum, Soybean, And Sunflower Variety Testing, G. F. Sassenrath, L. Mengarelli, J. Lingenfelser, X. Lin Jan 2021

Crop Production 2020 – Corn, Sorghum, Soybean, And Sunflower Variety Testing, G. F. Sassenrath, L. Mengarelli, J. Lingenfelser, X. Lin

Kansas Agricultural Experiment Station Research Reports

This is a summary of the variety testing for corn, sorghum, soybean, and sunflower. Nine corn varieties were tested in 2020, with an average yield of 107.6 bu/a. Twenty-four cultivars of soybeans from maturity groups (MG) 3-4 and twenty-seven cultivars from MG4-5 were tested in both full-season and double-cropped management. Full-season beans yielded an average of 54.5 bu/a for MG3-4 and 58.8 bu/a for MG4-5, which was greater than the average yields in the double-cropped beans at 32 bu/a for MG3-4 and 40.5 bu/a for MG4-5. The state-wide average soybean yield ...


Annual Summary Of Weather Data For Parsons - 2020, M. Knapp Jan 2021

Annual Summary Of Weather Data For Parsons - 2020, M. Knapp

Kansas Agricultural Experiment Station Research Reports

This report includes the annual summary of precipitation and temperatures from 2020 at the research locations represented in the 2020 Southeast Research and Extension Center Agricultural Research Report.


Relationships Among Maternal Traits And Sale Prices Of Red Angus Bulls Sold At Auction From 2017 Through 2019, M. J. Smith, K. E. Fike, M. E. King, E. D. Mccabe, G. M. Rogers, K. G. Odde Jan 2021

Relationships Among Maternal Traits And Sale Prices Of Red Angus Bulls Sold At Auction From 2017 Through 2019, M. J. Smith, K. E. Fike, M. E. King, E. D. Mccabe, G. M. Rogers, K. G. Odde

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to evaluate the influence of maternal traits in the form of selection indices and expected progeny differences on the sale price of Red Angus Bulls sold at auction from 2017 through 2019 across the United States.

Study Description: Information describing factors about Red Angus bulls marketed through auctions were obtained from the Red Angus Association of America (Commerce City, CO) in an electronic format. Data were collected for 21,362 Red Angus bulls offered for sale in auctions from 2017 through 2019. Multiple regression models were developed using backward selection procedures to examine ...


The Effect Of Method Of Collection And Number Of Sequential Ejaculates On Semen Characteristics Of Beef Bulls, A. R. Hartman, M. L. Butler, S. K. Tucker, N. M. Goodenow, J. M. Bormann, D. M. Grieger Jan 2021

The Effect Of Method Of Collection And Number Of Sequential Ejaculates On Semen Characteristics Of Beef Bulls, A. R. Hartman, M. L. Butler, S. K. Tucker, N. M. Goodenow, J. M. Bormann, D. M. Grieger

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to determine the effect of collection method and number of sequential ejaculates on beef bull ejaculate characteristics.

Study Description: Semen collection data from 2008 to 2018 was obtained from the Kansas Artificial Breeding Services Unit and consisted of 11,642 ejaculates from 906 bulls. Bulls were collected twice weekly on Mondays and Thursdays with an artificial vagina. Bulls not receptive to the artificial vagina were subject to electro-ejaculation. A single technician was responsible for all pre-freeze and post-thaw semen analysis. Ejaculates were required to meet quality standards.

Results: Progressive motility before freezing was ...


Impact Of Fungicide On Wheat, G. F. Sassenrath, H. Zhao, X. Lin Jan 2021

Impact Of Fungicide On Wheat, G. F. Sassenrath, H. Zhao, X. Lin

Kansas Agricultural Experiment Station Research Reports

This is a report of research to test the impact of fungicide and management on wheat yield and quality. Fusarium head blight (FHB), or scab, is a persistent problem in wheat production, especially in high rainfall areas such as eastern Kansas. Two cultivars of winter wheat varying in FHB sensitivity (Everest, moderately resistant, and KanMark, susceptible) were tested for control of FHB using fungicide treatments made to the seed prior to planting or to the wheat plant at heading, in tilled or no-tilled management. The wet spring of 2020 resulted in high FHB pressure, but dry conditions at harvest re ...


Using Cover Crops To Suppress Weeds And Improve Soil Health, J. A. Dille, L. I. Chism, G. F. Sassenrath Jan 2021

Using Cover Crops To Suppress Weeds And Improve Soil Health, J. A. Dille, L. I. Chism, G. F. Sassenrath

Kansas Agricultural Experiment Station Research Reports

Herbicide-resistant weeds are creating challenges for producers to control weeds in crop fields. This study explores the potential of cover crops to reduce weed pressure and im­prove soil health. Cover crops were planted after corn harvest in tilled and no-till fields, and included Graza radish, winter wheat, annual ryegrass, spring oats, winter oats, and forage collards. The control was fallow with herbicide application but no cover crop. Soil health was determined prior to cover crop termination. Graza radish and forage collards did not grow consistently in all plots due to poor germination and winter kill. Significant weed biomass was ...


Effect Of Trucking Distance On Sale Price Of Beef Calf And Feeder Cattle Lots Sold Through Video Auctions From 2010 Through 2018, E. D. Mccabe, M. E. King, K. E. Fike, M. J. Smith, G. M. Rogers, K. G. Odde Jan 2021

Effect Of Trucking Distance On Sale Price Of Beef Calf And Feeder Cattle Lots Sold Through Video Auctions From 2010 Through 2018, E. D. Mccabe, M. E. King, K. E. Fike, M. J. Smith, G. M. Rogers, K. G. Odde

Kansas Agricultural Experiment Station Research Reports

Objective: The objective was to determine effect of trucking distance on sale price of beef calf and feeder cattle lots sold through Superior Livestock Video Auctions from 2010 through 2018.

Study Description: Data analyzed were collected from 211 livestock video auctions that included 42,043 beef calf and 19,680 feeder cattle lots delivered to 6 states (Colorado, Iowa, Kansas, Nebraska, Oklahoma, and Texas). Multiple regression models were used to evaluate the effect of factors, with trucking distance of main interest, on sale price of lots. Based on reported states of origin and delivery, lots were categorized into one of ...