Economic Injury Levels For Aphis Glycines Matsumura (Hemiptera: Aphididae) On The Soybean Aphid Tolerant Ks4202 Soybean, Lia Marchi-Werle, Edson L.L. Baldin, Hillary D. Fischer, Tiffany Heng-Moss, Thomas Hunt

Department of Entomology: Faculty Publications

The soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae), is an invasive species from Asia that has been the major economic insect pest of soybeans, Glycine max (L.) Merrill, since 2000. While use of soybeans expressing antibiosis and antixenosis is a well-studied strategy to manage this pest, aphid-tolerant soybeans remain underexplored. This study examined the relationship between cumulative aphid-days (CAD) and yield loss in the tolerant soybean KS4202 during two growing seasons to determine the economic injury levels (EILs) for soybean aphids on KS4202. Soybean aphid infestations were initiated during the soybean reproductive stages. A range of CAD treatments (3,000–45,000 CADs) …

Table Of Contents

Professional Agricultural Workers Journal

No abstract provided.

Challenges Of Stocking Small Ruminants In Grazing Plots With Dormant Browse Species, Sanjok Poudel, Uma Karki, Wendell Mcelhenney, Yubaraj Karki, Asha Tillman, Lila Karki, Anthony Kumi

Professional Agricultural Workers Journal

Abstract

Integration of browse species into the grazing system can increase the grazing/browsing opportunity; however, information is limited on their proper management for long-term use and persistence. The objective of the study was to determine whether it is safe to allow small ruminants to graze pastures consisting of dormant browse species. Katahdin ram lambs (9) and Kiko wethers (20) had access to the study plots containing four dormant browse species (mulberry, Morus alba; mimosa, Albizia julibrissin; white lead tree, Leucaena leucocephala; and bush indigo, Amorpha fruticosa) for two months. Type and extent of damage to the browse …

Abridged Submission Guidelines For Manuscripts For The Professional Agricultural Workers Journal (Pawj)

Professional Agricultural Workers Journal

No abstract provided.

Spotted Wing Drosophila [Drosophila Suzukii], Lori R. Spears, Cami Cannon, Diane G. Alston, Ryan S. Davis, Cory Stanley-Stahr, Ricardo Ramirez

All Current Publications

This fact sheet describes spotted wing drosophila, an invasive vinegar fly that infests soft fruits and vegetables. It includes information on how to identify, plant hosts, injury symptoms, monitoring, non-chemical control, and chemical control.

Healthy Beginnings - Infant And Toddler Feeding, Chelsea Feller, Carrie Durward

All Current Publications

Having a hard time understanding what, when, and how to feed your infant or toddler? Or maybe you’re looking for some additional tips and tricks to add to what you already know. We provide research-based answers to those tough questions, plus more in this fact sheet.

Beneficial True Bugs: Minute Pirate Bugs, Ronald Patterson, Ricardo Ramirez

All Current Publications

This fact sheet describes beneficial true bugs: minute pirate bugs. It includes their life cycle and tips for promoting beneficial insects such as conservation and enhancement, predator release, and the predator release process.

Preparing Soil For Turfgrass Establishment - Northern Utah, Michael Caron, Grant Cardon, Taun Beddes, Kelly Kopp

All Current Publications

This fact sheet provides information for successfully establishing a lawn including planning, soil preparation, appropriate seed or sod choice, and an understanding of turfgrass requirements in northern Utah.

Latino Immigration And Community Development In Rural Nebraska, Daniela Mettos

Cornhusker Economics

"Community" originates from the Latin "communis," meaning common. A community can be defined as a group of people who know one another and share common cultural traditions, interests, concerns, and objectives mainly because they have always interacted on a regular basis. To most rural people, community means the same familiar faces and places, a daily routine, social systems and norms they understand, things they have always done. This scenario has been changing with the influx of immigrants in rural areas. Nowadays, rural community residents find themselves sharing their place with new people from distant regions and different cultures.

Impacts Of A Community Supported Agriculture (Csa) Voucher Program On Food Lifestyle Behaviors: Evidence From An Employer-Sponsored Pilot Program, Jairus J. Rossi, Timothy A. Woods, James E. Allen Iv

Agricultural Economics Faculty Publications

Community supported agriculture (CSA) programs have recently received attention for their potential to influence food lifestyle behaviors and health outcomes. We build on and expand inquiries into the relationship between CSA participation and behavior change by presenting the results from a controlled pilot study of first-time CSA shareholders. We offered 95 first-time shareholders a $200 voucher to participate in a CSA. Prior to and immediately following CSA participation, these shareholders completed a survey on food lifestyle behaviors. Using econometric analyses, we measured shareholder behavior changes against an 82 person control group. All participants were drawn from a pool of individuals …

Effect Of Ferulic Acid And Caffeic Acid On Acrylamide Formation And Elimination, Wu Haojie, Yu Miao, Huang Caihuan, Ou Shiyi

Food and Machinery

In this study, caffeic and ferulic acids were used to test the effect on acrylamide formation and elimination in model reaction systems. In asparagine/glucose reaction system, addition of caffeic and ferulic acid at the concentration of 25 mmol/L and 250 mmol/L inhibited acrylamide formation. However, they increased acrylamide formation below 2.5 mmol/L. It was found that both of phenolic acids increased acrylamide elimination when ferulic acid or caffeic acid were heated with acrylamide, but the effect is not obvious, so effect of caffeic acid and ferulic acid influenced on acrylamide content in Maillard reaction system mainly influence on acrylamide formation …

The Influence Of Purple Potato Starch On Bread Flour Rheology Properities And Gelatinization Characteristics, He Zhaowei, Liu Xiong, Zhao Tiantian, Shu Yuanfeng

Food and Machinery

This study aimed at the effects of purple sweet potato powder (PSP) with different amounts (namely null, 5%, 10%,15% and 20%) on the rheological properties and pasting properties of dough tested by farinograph, extensograph, and rapid viscosity analyzer. The results showed that addition of PSP significantly influenced the properties of a dough. With the increase of PSP, the rheological properties and gelatinization properties of the dough were improved, which means PSP could lessen the gluten thews and inhibit the gelatinization and expansion process of wheat dough. However, the PSP could rise the bibulous rates, and reduce retrogradation value, which could …

Effect Of High Pressure Homogenization And Colloid Mill Modification On The Physicochemical Properties Of Insoluble Dietary Fiber From Olive Pomace, Ding Shasha, Huang Lixin, Zhang Caihong, Xie Pujun, Deng Yejun, Wang Xiaojie

Food and Machinery

Olive pomace IDF were physical modified by high pressure homogenization (HPH) and colloid mill (CM) in this study. Moreover, the micromorphology, particle size distribution, functional groups, crystal structure and physico-chemical properties of IDF before and after the modification were analyzed. HPH group had looser morphology, more cavities and cracks, average particle size of 66.97 μm. CM group had looser morphology, more fracture, average particle size of 79.52 μm. HPH and CM modification didn’t affect IDF’s functional groups, crystal structure or crystallinity. HPH and CM groups similarly appeared characteristics absorption peaks of sugars similarly, both had celluloseⅠcrystal structure. Compared with unmodified …

Effect Of Preparation Method On Physical And Chemical Properties Of Indica Rice Resistant Starch Of Type Rs3, Ouyang Mengyun, Wang Yan, Zhao Chuanwen

Food and Machinery

The indica starch pregelatinized by microwave as raw material, the effect of ultrasonic auxiliary-dual enzyme method and seed induced-dual enzyme method on the structure and physicochemical properties of indica rice resistant starch of type RS₃ were researched in this study. The results showed that the structure of the raw starch was polyhedron, the edge of the surface was distinct, the crystal form was type A, and the crystallinity was only 8.9%. While the structure of RS₃ were made by ultrasonic auxiliary-dual enzyme method and seed induced-dual enzyme method became rough and uneven, the solubility, swelling degree and water …

The Strengthening Of Faint-Scent Cigarettes Style Characteristic, Yin Fei, Yu Jingyang, Zhang Xiaoming

Food and Machinery

In this paper, the brand of faint-scent cigarette was as the object. Firstly, the blank, cigarette added fragrances and end product cigarette were conducted sensory evaluation, respectively. The results showed that the cigarette added fragrances has a significantly increase in all aspects, approaching the end product cigarette. However, there is some defectiveness in faint-scent, potpourri and sweet and sour properties. Secondly, the analysis of volatile compounds of tobaccos from added fragrances and end product cigarettes were analyzed by GC-MS. And the results showed that 27 compositions were not detected in cigarettes added fragrances and most of these ingredients have floral …

Breeding Of Low-Permeability Sensitive Mutant From Saccharomyces Cerevisiae, Ye Jing, Yue Xijie, Jiang Xuewei, Luo Xiaoming, Chen Daiwen, Wu Jian, Li Chiling

Food and Machinery

In order to improve the efficient secretion of intracellular product in Saccharomyces cerevisiae, wild diploid Y₁ (2n) were mutagenized with UV treatment as original strain. To further identify, the degree of autolysis of each mutant strain was contrasted in low permeability condition by the test of its content of FDP, extra-cellular nucleic acids and proteins. The results showed: Hs₅*（n）showed the highest degree of conditional autolysis in low permeability condition, the concentration of FDP in extracellular environment was 25.81 μg/mL. At the sixth hour in low permeability, its penetration rate of nucleic acid and protein in extracellular environment …

Isolation And Identification Of Ginkolides-Producing Endophytic Fungi From Ginkgo Biloba Linn., Chen Xiaoming, He Fulin, Li Zhizhong, Yuan Zhihui

Food and Machinery

In the present study, the method of tissue culturing was used to isolate the endophytic fungi from healthy ginkgo roots and stems. After repeated separation and purification, 116 Ginkgo endophytes were isolated. Metabolites of these fungi were preliminarily analyzed by high-performance liquid chromatography (HPLC), and a ginkgolide producing endophyte strain was finally screened out. The production of ginkgolides by this strain was more than 11.4 mg/L. The endophytic fungi strain was identified as Mucor spp. by morphology characteristics and phylogenetic analysis of internal transcribed spacer (ITS), and It was the first report in the ginkgolides producing endophytic fungus from Ginkgo …

Study On The Inhibitory Effect Of Onion Peel Flavonoids On Adipocyte Production, Han Ying, Lin Mo, Liu Haoming, Xu Meina, Xu Hongyan, Li Guanhao

Food and Machinery

Extractions of flavonoid compounds in onion with ethanol, using the optimization factors of single factor and orthogonal design experiments, the flavonoids extraction rate of onion peel was 21.58%. The effect of quercetin on the differentiation of 3T3-L1 preadipocytes was best by separating the flavonoids from the liquid phase and acting on the 3T3-L1 preadipocytes. The expression of fat differentiation related gene FASmRNA was measured in 3T3-L1 adipocytes induced by flavonoid monomers of onion skin for eighth days. The results showed that the relative expression of FAS in 3T3-L1 preadipocytes induced by mRNA in quercetin group was significantly lower than that …

Discrimination Of Anhua Dark Tea By Gas Chromatography-Time Of Flight Mass Spectrometry Combined With Chemometrics, Yan Hongfei, Peng Zhengguang, Li Rongjuan, Chen Lian, Wangmei Ling, Fu Shanliang, Dai Hua, Zhang Fan

Food and Machinery

The volatile components in Anhua and other dark teas were analyzed by headspace solid phase microextraction (HS-SPME) combined with gas chromatography-time of flight mass spectrometry (GC-TOF MS). About 41 volatile compounds were analyzed qualitatively and quantitatively. A classification model and predict the authenticity obtained from variance analysis, principal component analysis (PCA) and partial least squares discriminate analysis (PLSDA). In addition, the 26 compounds significant impacting on the classification were screened out from Anhua dark tea. The straight forward classification trend of Anhua dark tea and other samples was visualized through projection score plots obtained by PCA. Effective classification and identification …

Simultaneous Determination Of Suifonamides And Quiniones Infish By Uplc-Q/Orbitrap Hrms, Yang Luqi, Li Rong, Gao Yongqing, Zhang Pengjie, Zhang Pengyun

Food and Machinery

An Ultra-High Performance Liquid Chromatography-Quadrupole/Electrostatic Field Orbitrap High-resolution Mass Spectrometry method （UPLC-Q-Orbitrap HRMS）has been developed for the determinations of the drug residues of 21 SAs and 12 QNs in aquatic products.The sample was extracted by acetonitrile, cleaned up by acetonitrile saturated normal hexane and quantified in internal standard method.The results showed that 33 products presented a good linear relation in the range of 0.1～100 ng/mL. r²＞0.996. The limits for qualitative detection was 2 μg/kg. The average recoveries at three spike levels ranged were 54.3%～120.4%, with RSDs ranging 1.7%～11.9%. The developed method was easy operation high sensitivity, which can …