Agriculture Commons^™

Transient Heat Stress During Early Seed Development Primes Germination And Seedling Establishment In Rice, Kevin Begcy, Jaspreet Sandhu, Harkamal Walia

Department of Agronomy and Horticulture: Faculty Publications

Rice yield is highly sensitive to increased temperature. Given the trend of increasing global temperatures, this sensitivity to higher temperatures poses a challenge for achieving global food security. Early seed development in rice is highly sensitive to unfavorable environmental conditions. Heat stress (HS) during this stage decreases seed size and fertility, thus reducing yield. Here, we explore the transgenerational phenotypic consequences of HS during early seed development on seed viability, germination, and establishment. To elucidate the impact of HS on the developmental events in postzygotic rice seeds, we imposed moderate (35°C) and severe (39°C) HS treatments initiated 1 day after …

Maize And Soybean Root Front Velocity And Maximum Depth In Iowa, Usa, Raziel A. Ordóñez, Michael J. Castellano, J. L. Hatfield, M. J. Helmers, Mark A. Licht, Matt Liebman, Ranae Dietzel, Rafael Martinez-Feria, Javed Iqbal, Laila A. Puntel, S. Carolina Córdova, Kaitlin Togliatti, Emily E. Wright, Sotirios V. Archontoulis

Department of Agronomy and Horticulture: Faculty Publications

Quantitative measurements of root traits can improve our understanding of how crops respond to soil and weather conditions, but such data are rare. Our objective was to quantify maximum root depth and root front velocity (RFV) for maize (Zea mays) and soybean (Glycine max) crops across a range of growing conditions in the Midwest USA. Two sets of root measurements were taken every 10–15 days: in the crop row (in-row) and between two crop rows (center-row) across six Iowa sites having different management practices such as planting dates and drainage systems, totaling 20 replicated experimental treatments. …

Sequences Involved In Plant Yield And Methods Of Using, Harkamal Walia, Dante Placido, Thomas E. Clemente

Department of Agronomy and Horticulture: Faculty Publications

Nucleic acid sequences involved in plant yield are provided, as are methods of using such nucleic acid sequences .

Identification Of Quantitative Trait Loci Conferring Resistance To Tan Spot In A Biparental Population Derived From Two Nebraska Hard Red Winter Wheat Cultivars, Gayan K. Kariyawasam, Waseem Hussain, Amanda Easterly, Mary Guttieri, Vikas Belamkar, Jesse Poland, Jorge Venegas, Stephen Baenziger, Francois Marais, Jack B. Rasmussen, Zhaohui Liu

Department of Agronomy and Horticulture: Faculty Publications

Tan spot, caused by Pyrenophora triticirepentis (Ptr), is a destructive foliar disease in all types of cultivated wheat worldwide. Genetics of tan spot resistance in wheat is complex, involving insensitivity to fungal-produced necrotrophic effectors (NEs), major resistance genes, and quantitative trait loci (QTL) conferring race-nonspecific and race-specific resistance. The Nebraska hard red winter wheat (HRWW) cultivar ‘Wesley’ is insensitive to Ptr ToxA and highly resistant to multiple Ptr races, but the genetics of resistance in this cultivar is unknown. In this study, we used a recombinant inbred line (RIL) population derived from a cross between Wesley and another …

Active-Optical Reflectance Sensing Corn Algorithms Evaluated Over The United States Midwest Corn Belt, G. M. Bean, N. R. Kitchen, J. J. Camberato, R. B. Ferguson, F. G. Fernandez, D. W. Franzen, C. A. M. Laboski, E. D. Nafziger, J. E. Sawyer, P. C. Scharf, J. Schepers, J. S. Shanahan

Department of Agronomy and Horticulture: Faculty Publications

Uncertainty exists with corn (Zea mays L.) N management due to year-to-year variation in crop N need, soil N supply, and N loss from leaching, volatilization, and denitrification. Activeoptical reflectance sensing (AORS) has proven effective in some fields for generating N fertilizer recommendations that improve N use efficiency, but locally derived (e.g., within a US state) AORS algorithms have not been tested simultaneously across a broad region. The objective of this research was to evaluate locally developed AORS algorithms across the US Midwest Corn Belt region for making in-season corn N recommendations. Forty-nine N response trials were conducted across …

2018 Weed Science Research Report – Pink Section, Ndsu Weed Science, Dept. Of Plant Sciences

Plant Sciences Weed Science Reports

The Weed Science team at North Dakota State University conduct field research in the State of North Dakota. This specific document reports on field research conducted in 2018. It includes work on the effects of droplet size on Canada thistle control in North Dakota.

2018 Weed Science Research Report – White Section, Ndsu Weed Science, Dept. Of Plant Sciences

Plant Sciences Weed Science Reports

The Weed Science team at North Dakota State University conduct field research in the State of North Dakota. This specific document provides environmental, indexes, abbreviations and collaborators in 2018.

Cocklebur (Xanthium Strumarium L.) Seed Oil Andits Properties As An Alternative Biodiesel Source, Cüneyt Cesur, Tanzer Eryilmaz, Tansu Uskutoğlu, Hülya Doğan, Belgi̇n Coşge Şenkal

Turkish Journal of Agriculture and Forestry

Cocklebur (Xanthium strumarium L.) seed oil is available for biodiesel production as a wild plant species. In the present study, the cocklebur seeds collected from Muslubelen, Yozgat, Turkey, at 1440 m in 2014 were sown in the Bozok University Agriculture Faculty Topçu Research Area during 2015 and 2016. The maximum crude oil ratio was obtained as 35%. Oleic and linoleic acid contents of cocklebur seed oil were determined as 11.37% and 76.97%, respectively. Some important fuel properties such as density, flash point, water content, copper strip corrosion, iodine value, linolenic acid, methyl ester, and sulfated ash content values were measured …

Effects Of Wheel Traffic And Farmyard Manure Applications On Soilco2 Emission And Soil Oxygen Content, Sefa Altikat, Hasan Kaan Küçükerdem, Aysun Altikat

Turkish Journal of Agriculture and Forestry

This 2-year field study investigated the effects of different wheel traffic passes, manure amounts, and manure application methods on soil temperature, soil moisture, CO2 emission, and soil O2 content. To achieve this purpose, three different wheel traffic applications (no traffic, one pass, and two passes) were used. In the experiments, two different methods of manure applications (surface and subsurface) and three different farmyard manure amounts were used with a control plot (N0), 40 Mg ha-1 (N40), and 80 Mg ha-1 (N80). Manure was applied in both years of the experiment in the first week of April. For the subsurface application, …

Reflection And Evaluation Of The “Healthy Me, Healthy Earth” After-School Program, Mary K. Sherman

Honors Theses and Capstones

The “Healthy Me, Healthy Earth” program was an eight week after-school program for first through fourth graders at the Woodman Park Elementary School in Dover, NH conducted during the Fall of 2017. The program used a cost-effective, food system-based curriculum to promote health and environmental literacy to students who participated. An interdisciplinary approach was used to assess the knowledge, attitude, and behavioral changes of the students. There was a noted improvement in comprehension of food system concepts.

Evaluation Of Recycled Gypsum Application Dosages To Enhance The Water Infiltration Rate At Water Retention Ponds, Jorge Luis Navarrete

Open Access Theses & Dissertations

The retention ponds play central role for efficient collection, removal, and drainage of rainfall runoff from surrounding streets to minimize flooding and damage. However, low percolating retention ponds may result in an extended ponding of water, abundance bacteria accumulations, mosquito breeding, environmental hazards, among others. The presence of clayey soils and soil sodicity reduces infiltration rates of retention ponds. To enhance the infiltration rate of ponds, it is proposed to use recycled gypsum (RG), as a soil amendment in retention ponds consisting of clayey soils to enhance low infiltration rates.

To evaluate the influence of RG in clayey soils as …

A Combined Field, Experimental And Modeling Approach To Understand The Impacts Of Flood Irrigation On Pedogenic Caco3 And Co2 Dynamics In Drylands, Anna Cristina Ortiz

Open Access Theses & Dissertations

Soil salinization is a global problem affecting 10% of agricultural soils, particularly in irrigated arid-lands. This study investigated salt loading through flood-irrigation, particularly of calcite (CaCO3) salt in the southwest of the United States. To evaluate the impact that flood-irrigation has on CaCO3 buildup and its effect on C-cycling, a natural soil and two agricultural soils were sampled: a pecan orchard and an alfalfa field in the El Paso, TX region. Agricultural soils in this study are flood irrigated by the Rio Grande river and by ground waters in its absence, both of which are oversaturated with calcite.

To trace …

Effects Of Unweathered Or Soil Weathered Copper-Based Nanoparticles And Compounds On Soil Grown Bell Pepper (Capsicum Annuum) And Spinach (Spinacia Oleracea) Plants, Swati Rawat

Open Access Theses & Dissertations

Engineered nanoparticles (ENPs) find large scale industrial application because of their promising chemical, physical, electrical, magnetic, optical, and electronic properties. Copper-based ENP are used as gas sensors, in catalysts, electronics, semi-conductors, and in agriculture. They have been useful as agricultural amendments in the form of pesticides, herbicides, and fertilizers because of their antifungal and antibacterial properties. They also find application in electronics and sensors used in precision agriculture. Due to their massive production and use, ENPs are likely to be ubiquitous in the environment around us in the near future. Application of biosolids for fertilization and water from wastewater treatment …

Rural Business Development Corporation Annual Report 2018, Department Of Primary Industries And Regional Development, Western Australia

All other publications

In accordance with section 63 of the Financial Management Act 2006, we hereby submit for your information and presentation to Parliament, the annual report of the Rural Business Development Corporation for the reporting period ended 30 June 2018.

The annual report has been prepared in accordance with the provisions of the Financial Management Act 2006 and the Rural Business Development Corporation Act 2000.

The Effect Of Three Different Mulches On Weed Presence, Soil Characteristics, And Zinnia Growth, Anmar Muttaleb

Murray State Theses and Dissertations

Abstract

Organic and inorganic mulching helps to control weeds. Mulching helps cultivated plants to grow by inhibiting the growth of weeds, retaining soil moisture, and regulating the temperature of soil. The objective of this study was to determine the effects of different organic mulches on weed presence, soil characteristics, and growth of Zinnia elegans. The mulches used in studying Zinnia elegans were wheat straw, non-shredded Miscanthus (M. × giganteus), and shredded Miscanthus (M. × giganteus) mulch. A Randomized Complete Block Design (RCBD) was used in the study, with different quantitative methods were used to …

Production Of Industrial Hemp In Kentucky, Patrick J. Hooks

Murray State Theses and Dissertations

Hemp, or Cannabis sativa, is a plant that can be used for many products, such as textiles, oils, and seeds. Currently, the four most important textiles in the United States’ manufacturing industry are cotton, wood, silk, and linen. In the 1950s, the United States Government banned the production of hemp, as it was legislated into the marijuana policy of this industry. Because of this, the hemp crop was pushed out of the textile industry and replaced by cloth, linens, and textiles. Section 7606 of the Agriculture Act of 2014 declares the State Department of Agriculture’s legalization of industrial hemp …

Manipulating Graded Exercise Test Variables Affects The Validity Of The Lactate Threshold And Vo2peak, Nicholas A. Jamnick, Javier Botella, David B. Pyne, David Bishop

Research outputs 2014 to 2021

Background To determine the validity of the lactate threshold (LT) and maximal oxygen uptake (V_ O2max) determined during graded exercise test (GXT) of different durations and using different LT calculations. Trained male cyclists (n = 17) completed five GXTs of varying stage length (1, 3, 4, 7 and 10 min) to establish the LT, and a series of 30-min constant power bouts to establish the maximal lactate steady state (MLSS). V_ O2 was assessed during each GXT and a subsequent verification exhaustive bout (VEB), and 14 different LTs were calculated from four of the GXTs (3, 4, 7 and 10 …

Forest Type Influences Population Densities Of Nocturnal Lemurs In Manompana, Northeastern Madagascar, Alex Miller, Harriet R. Mills, Tantely Ralantoharijaona, Nicole A. Volasoa, Chantal Misandeau, Lounès Chikhi, Roberta Bencini, Jordi Salmona

Research outputs 2014 to 2021

Forest loss, fragmentation, and anthropization threaten the survival of forest species all over the world. Shifting agriculture is one of these threatening processes in Madagascar. However, when its cycle is halted and the land is left to regenerate, the resulting growth of secondary forest may provide a viable habitat for folivorous and omnivorous lemur species. We aimed to identify the response of nocturnal lemurs to different successional stages of regenerating secondary, degraded mature, and mature forest across a mosaic-type landscape. We surveyed four nocturnal lemur species (Avahi laniger, Microcebus cf. simmonsi, Allocebus trichotis, and Daubentonia madagascariensis) in four forest types …

Adverse Pregnancy Outcomes And Imbalance In Angiogenic Growth Mediators And Oxidative Stress Biomarkers Is Associated With Advanced Maternal Age Births: A Prospective Cohort Study In Ghana, Enoch Odame Anto, William K. Owiredu, Samuel A. Sakyi, Cornelius A. Turpin, Richard K. Ephraim, Linda A. Fondjo, Christian Obirikorang, Eric Adua, Emmanuel Acheampong

Research outputs 2014 to 2021

Background Advanced maternal age (AMA) has been associated with negative pregnancy outcomes. Oxidative stress (OS) and defective placental dysfunction are contributing factors. This study determined the association between AMA and adverse pregnancy outcomes, OS biomarkers and angiogenic growth mediators (AGMs) in normal pregnancies. Methods This prospective cohort study conducted at the Obstetrics and Gynaecology (O&G) Department of the Komfo Anokye Teaching Hospital (KATH) finally included 175 normal pregnant women comprising, 58 AMA (35–45 years), 55 (30–34 years) and 62 optimal childbearing age (20–29 years). Venous blood samples were collected at 28–32 weeks for soluble fms-like tyrosine kinase-1 (sFlt-1), placental growth …

Dietary Nitrate And Diet Quality: An Examination Of Changing Dietary Intakes Within A Representative Sample Of Australian Women, Jacklyn K. Jackson, Amanda J. Patterson, Lesley K. Macdonald-Wicks, Catherine P. Bondonno, Lauren C. Blekkenhorst, Natalie C. Ward, Jonathan M. Hodgson, Julie E. Byles, Mark A. Mcevoy

Research outputs 2014 to 2021

Dietary nitrate is increasingly linked to a variety of beneficial health outcomes. Our purpose was to estimate dietary nitrate consumption and identify key dietary changes which have occurred over time within a representative sample of Australian women. Women from the 1946–1951 cohort of the Australian Longitudinal Study on Women’s Health with complete food frequency questionnaire data for both 2001 and 2013 were included for analysis. Dietary nitrate intakes were calculated using key published nitrate databases. Diet quality scores including the Australian Recommended Food Score, the Mediterranean Diet Score and the Nutrient Rich Foods Index were calculated along with food group …

Understanding The Process Of Selling, Cheryl A. Burkhart-Kriesel

Cornhusker Economics

Black Friday, Cyber Monday, and then the countdown to Christmas… tis the season for buying! But if you work in the retail environment, it is also the season for selling. The act of “selling” is obvious in face-to-face retail environments but the steps of the selling process are also embedded in all sorts of product and service settings.

Preparacion De Huertos Nivel Basico, Ronald Patterson, Dennis Worwood, Celina Wille

All Current Publications

No abstract provided.

Slicing Cucumber Performance In Southwest Michigan, Ron Goldy, Kyle Farrantella

Midwest Vegetable Trial Reports

No abstract provided.

Pumpkin Fungicide And Cultivar Evaluation, 2017, John Strang, John Walsh, John Snyder, Emily Pfeufer, Will Barlow

Midwest Vegetable Trial Reports

No abstract provided.

Evaluation Of Yield And Flavor Of Slicing Tomatoes, Lewis Jett

Midwest Vegetable Trial Reports

No abstract provided.

Caring For Horses In Cold Weather, Karl Hoopes

All Current Publications

This fact sheet gives tips for providing a suitable environment for horses to live outside in the winter and remain comfortable and healthy,

Fabulous Tulips In Springtime, Linden Greenhalgh, Holly Christley

All Current Publications

This fact sheet describes tulips, including their classification, recommended varieties, how to grow them, and problems.

Body Image In Adolescence, Jaqueline Neid-Avila, Brittany Bingeman

All Current Publications

This fact sheet addresses risk factors and protective factors in order to help adolescents navigate this critical time frame.

Case Study Of Skills Developed During Employment At Kentucky Ffa Summer Camp As A Young Adult, Kelly W. Rexroat

Murray State Theses and Dissertations

The purpose of this study was to provide a qualitative case study analysis of the soft skill development of summer camp staff members at the Kentucky FFA Leadership Training Center and to look at whether or not the leadership development focus of the camp program had an increased impact on the development of the staff members’ leadership skills. For years, FFA summer camp programs have been developing the leadership qualities of FFA members and preparing them to take on leadership roles for the upcoming year. Semi-structured interviews were conducted with former Kentucky FFA summer camp staff members from 2008 to …

Pumpkin Variety Performance With And Without Treatment For Powdery Mildew In Northern Indiana, 2017, Elizabeth Maynard, Erin A. Bluhm

Midwest Vegetable Trial Reports

Pumpkins are grown on 5,000 acres in Indiana with an average yield of 6.75 tons per acre. Successful pumpkin production requires the use of varieties that yield well and produce pumpkins of the size, shape, color, and quality demanded by the market. Genetic resistance to the fungal disease powdery mildew is present in some varieties. This trial was designed to evaluate performance of pumpkin varieties in northern Indiana with and without treatment for powdery mildew. The trial included fourteen orange jack-o-lantern size pumpkins, one small or 'pie' pumpkin and one specialty yellow pumpkin.