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International Shipping Of Fumonisins From Maize Extracts On C18 Sorbent, R. T. Riley, O. A. Torres, E. Palencia
International Shipping Of Fumonisins From Maize Extracts On C18 Sorbent, R. T. Riley, O. A. Torres, E. Palencia
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Fumonisins are mycotoxins found in maize. In developing countries, the resources required for analysis are often lacking, and the shipping of maize between countries can be difficult since the importation of plant materials requires permits/ inspection to prevent the entry of pests that frequently infest maize. A simple, safe and legal method for shipping maize extracts to the USA was needed to conduct a survey of fumonisins in Central America. The objective was to develop a method for isolating and shipping maize extracts for fumonisin analysis so as to facilitate a survey of fumonisin exposure. The results indicate that fumonisins …
Improvements In Channel Catfish Growth After Two Generations Of Selection And Comparison Of Performance Traits Among Channel Catfish, Blue Catfish, And Hybrid Catfish Fingerlings In An Aquarium Rack System, Brian C. Small
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
A 9-week growth study was conducted to compare the fingerling performance of two genetic groups of channel catfish Ictalurus punctatus (United States Department of Agriculture [USDA] 103 and USDA303) with that of blue catfish I. furcatus and their hybrid in an aquarium rack system. Fish of approximately 20 g were randomly selected from multifamily populations and acclimated to the aquarium rack system for 2 weeks prior to the start of the 9-week study. Differences in growth indices, feed and protein efficiency, nitrogen retention, whole-body proximate composition, and plasma cortisol levels were determined at the completion of the study. The USDA303 …
Comparative Staging Of Embryo Development In Chicken, Turkey, Duck, Goose, Guinea Fowl, And Japanese Quail Assessed From Five Hours After Fertilization Through Seventy-Two Hours Of Incubation, N. Sellier, J.-P. Brillard, V. Dupuy, M. R. Bakst
Comparative Staging Of Embryo Development In Chicken, Turkey, Duck, Goose, Guinea Fowl, And Japanese Quail Assessed From Five Hours After Fertilization Through Seventy-Two Hours Of Incubation, N. Sellier, J.-P. Brillard, V. Dupuy, M. R. Bakst
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Normal tables of chicken embryo development are used to define specific stages of morphogenetic progression from the first cleavage divisions through hatching. Although established for the turkey and Pekin duck, the application of the normal tables of chicken embryo development to other birds of commercial and research importance needs be examined. Chicken, turkey, Japanese quail, and Pekin duck blastoderms from oviductal eggs showed differences in the rate of development that were inversely correlated with egg size. Oviposited eggs from these and additional species (goose, Muscovy and mule ducks, and Guinea fowl) were examined after 24 to 72 h of storage …
Restoration Of Spermatogenesis And Male Fertility By Transplantation Of Dispersed Testicular Cells In The Chicken, Pavel Trefil, Alena Micáková, Jitka Mucksová, Jiń Hejnar, Martin Poplstein, Murray R. Bakst, Jirí Kalina, Jean-Pierre Brillard
Restoration Of Spermatogenesis And Male Fertility By Transplantation Of Dispersed Testicular Cells In The Chicken, Pavel Trefil, Alena Micáková, Jitka Mucksová, Jiń Hejnar, Martin Poplstein, Murray R. Bakst, Jirí Kalina, Jean-Pierre Brillard
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Transplantation of male germ cells into sterilized recipients has been widely used in mammals for conventional breeding and transgenesis purposes. This study presents a workable approach for germ cell transplantation between male chickens. Testicular cells from adult and prepubertal donors were dispersed and transplanted by injection directly into the testes of recipient males sterilized by repeated gamma irradiation. We describe the repopulation of the recipient seminiferous epithelium up to the production of heterologous sperm in about 50% of transplanted males. In comparison to males transplanted with testicular cell preparations from adult donors, in which the first ejaculates with sperm were …
Effect Of Fenbendazole On Turkey Semen Quality, M. R. Bakst, M. Kramer, J. Long
Effect Of Fenbendazole On Turkey Semen Quality, M. R. Bakst, M. Kramer, J. Long
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Fenbendazole (FBZ) is an anthelmintic recently approved to treat and control nematode infections in growing turkeys. When administered to growing turkeys there are no detrimental side effects. However, when we used FBZ to treat nematodes in mature breeder toms, we observed a decrease in semen quality and a subsequent precipitous decline in fertility to less than 20% within 6 wk of administration. An experiment was designed to determine the impact of FBZ administration on aspects of spermatogenesis and semen quality. We discovered that although sperm viability and concentration was not significantly affected by FBZ, this drug significantly reduced sperm mobility. …
Effect Of Various Photoperiods On Testicular Weight, Weekly Sperm Output And Plasma Levels Of Lh And Testosterone Over The Reproductive Season In Male Turkeys, Jérôme Noirault, Jean-Pierre Brillard, Murray R. Bakst
Effect Of Various Photoperiods On Testicular Weight, Weekly Sperm Output And Plasma Levels Of Lh And Testosterone Over The Reproductive Season In Male Turkeys, Jérôme Noirault, Jean-Pierre Brillard, Murray R. Bakst
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
The effects of duration and variation in photoperiod on testis weight, testicular sperm production, semen output, and hormone status over the reproductive season in male turkeys were investigated. In Experiment 1, four groups of males raised from 17 to 23 wk of age under a constant short photoperiod were subjected to a constant short (Group 1: 7L:17D; Group 2: 10.5L:13.5D), constant long (Group 3: 14L:10D) or progressively increasing photoperiod (Group 4: 7L:17D to 14L:10D) up to 60 wk of age. In Experiment 2, four groups of males first raised as in Experiment 1 up to 23 wk of age were …
Androthrips Ramachandrai (Thysanoptera: Phlaeothripidae): An Introduced Thrips In The United States, David W. Boyd, Jr., David W. Held
Androthrips Ramachandrai (Thysanoptera: Phlaeothripidae): An Introduced Thrips In The United States, David W. Boyd, Jr., David W. Held
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Androthrips ramachandrai Karny is an exotic thrips, assumed to be predacious, and is associated with gall-inducing thrips. It was first reported in the U.S. from FL, and intercepted in CA from Thailand in 2002. We surveyed Ficus spp. with Gynaikothrips-induced galls in AL, CA, FL, HI, LA, MS, and TX, and document that A. ramachandrai is now established in CA, FL, HI, and TX. It probably has been spread by the ornamental horticulture industry. We outline its biology and compare it to a congener A. flavipes, a documented thrips predator. Androthrips ramachandrai has the potential to be a …
Book Review: Identification And Geographical Distribution Of The Mosquitoes Of North America, North Of Mexico, Daniel L. Kline
Book Review: Identification And Geographical Distribution Of The Mosquitoes Of North America, North Of Mexico, Daniel L. Kline
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Although much of this edition is a verbatim rehash of the first edition (1980), some very important changes have been made to Darsie and Ward's book that make it a valuable resource. This book is the only book that incorporates many of the recent changes in nomenclature, new species listings, and updates of geographic distributions of North American mosquitoes. Twelve species have been added to the book since the first edition. Changes to the text were necessary because of new species (e.g. Aedes albopictus and Ochlerotatus japonicus japonicus) invading different parts of North America (Sprenger and Wuithiranyagool 1986, Peyton …
Prospects For Biological Control Of Teasels, Dipsacus Spp., A New Target In The United States, Brian G. Rector, Vili Harizanova, René Sforza, Tim Widmer, Robert N. Wiedenmann
Prospects For Biological Control Of Teasels, Dipsacus Spp., A New Target In The United States, Brian G. Rector, Vili Harizanova, René Sforza, Tim Widmer, Robert N. Wiedenmann
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Two closely related teasels (Dipsacales: Dipsacaceae, Dipsacus spp.) of European origin have become invasive weeds in the United States. Common teasel (Dipsacus fullonum L.) and cutleaf teasel (Dipsacus laciniatus L.) have likely been in North America for more than two centuries, having been introduced along with cultivated teasel [D. sativus (L.) Honckney], an obsolete crop plant. There are few records of American insects or pathogens attacking Dipsacus spp. Invasive teasels have recently begun to spread rapidly throughout much of their current range, for reasons that are not yet known. Common and/or cut-leaf teasel have been listed as …
Host Specificity Of Divergent Populations Of The Leaf Beetle Diorhabda Elongata (Coleoptera: Chrysomelidae), A Biological Control Agent Of Saltcedar (Tamarix Spp.), Lindsey R. Milbrath, C. Clark Deloach
Host Specificity Of Divergent Populations Of The Leaf Beetle Diorhabda Elongata (Coleoptera: Chrysomelidae), A Biological Control Agent Of Saltcedar (Tamarix Spp.), Lindsey R. Milbrath, C. Clark Deloach
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
The leaf beetle, Diorhabda elongata (Brullé) sensu lato, was released in 2001 for the classical biological control of exotic saltcedars, a complex of invasive Tamarix species and hybrids. It did not establish at sites south of 37°N latitude where summer daylengths are below the critical photoperiod of the northern-adapted populations of the beetle that were released. Therefore, we assessed the host specificity of four D. elongata populations collected from more southern latitudes in the Old World (Tunisia, Crete, Uzbekistan, and Turpan, China). All populations were similar to each other and the previously released populations of D. elongata in their …
Movements Of European Starlings Captured At A Winter Roost In Omaha, Nebraska, H. Jeffrey Homan, George M. Linz, Garrett W. Unrein, James R. Thiele, John M. Hobbs
Movements Of European Starlings Captured At A Winter Roost In Omaha, Nebraska, H. Jeffrey Homan, George M. Linz, Garrett W. Unrein, James R. Thiele, John M. Hobbs
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
European starlings (Sturnus vulgaris) were using downtown Omaha, Nebraska, as a winter roosting site. We used radio telemetry and leg streamers to track birds in this roost. Between late December 2005 and March 2006, we radio tagged 57 starlings and located them 432 times. We attached leg bands and colored leg streamers to over 1,300 starlings captured at trapping sites within 7 km (4 mi) of the downtown roost. These techniques yielded data on previously unknown sites where starlings gathered to forage, stage, and roost. The maximum distance that a marked bird was observed from the downtown roost …
Movements Of House Sparrows Captured At An Experimental Grain Station In Fargo, North Dakota, Lisa M. Montplaisir, George M. Linz, Debra Tomanek, Linda B. Penry, David L. Bergman, H. Jeffrey Homan
Movements Of House Sparrows Captured At An Experimental Grain Station In Fargo, North Dakota, Lisa M. Montplaisir, George M. Linz, Debra Tomanek, Linda B. Penry, David L. Bergman, H. Jeffrey Homan
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
From 2 August through 1 October 1993 we banded and leg flagged 362 house sparrows (126 adults, 236 juveniles) captured in a decoy trap at an experimental grain station on the campus of North Dakota State University, Fargo (NDSU). We documented sightings of leg-flagged birds between 3 August 1993 and 14 December 1994. Over this period, 56 (66%) of the total 76 observations of leg-flagged birds were on the NDSU campus; 21 (28%) of the 76 observations occurred between March and December 1994, a minimum of 5 months after the leg flags were attached and following the 1993-1994 winter. Of …
Aboveground Productivity And Root–Shoot Allocation Diver Between Native And Introduced Grass Species, Brian J. Wilsey, H. Wayne Polley
Aboveground Productivity And Root–Shoot Allocation Diver Between Native And Introduced Grass Species, Brian J. Wilsey, H. Wayne Polley
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Plant species in grasslands are often separated into groups (C4 and C3 grasses, and forbs) with presumed links to ecosystem functioning. Each of these in turn can be separated into native and introduced (i.e., exotic) species. Although numerous studies have compared plant traits between the traditional groups of grasses and forbs, fewer have compared native versus introduced species. Introduced grass species, which were often introduced to prevent erosion or to improve grazing opportunities, have become common or even dominant species in grasslands. By virtue of their abundances, introduced species may alter ecosystems if they differ from natives in …
Partitioning Of Evapotranspiration And Its Relation To Carbon Dioxide Exchange In A Chihuahuan Desert Shrubland, Russell L. Scott, Travis E. Huxman, William L. Cable, William E. Emmerich
Partitioning Of Evapotranspiration And Its Relation To Carbon Dioxide Exchange In A Chihuahuan Desert Shrubland, Russell L. Scott, Travis E. Huxman, William L. Cable, William E. Emmerich
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Key to evaluating the consequences of woody plant encroachment on water and carbon cycling in semiarid ecosystems is a mechanistic understanding of how biological and non-biological processes influence water loss to the atmosphere. To better understand how precipitation is partitioned into the components of evapotranspiration (bare-soil evaporation and plant transpiration) and their relationship to plant uptake of carbon dioxide (CO2) as well as ecosystem respiratory efflux, we measured whole plant transpiration, evapotranspiration, and CO2 fluxes over the course of a growing season at a semiarid Chihuahuan Desert shrubland site in south-eastern Arizona. Whole plant transpiration was measured …
Separation And Identification Of Soybean Leaf Proteins By Two-Dimensional Gel Electrophoresis And Mass Spectrometry, Chenping Xu, Wesley M. Garrett, Joseph Sullivan, Thomas J. Caperna, Savithiry Natarajan
Separation And Identification Of Soybean Leaf Proteins By Two-Dimensional Gel Electrophoresis And Mass Spectrometry, Chenping Xu, Wesley M. Garrett, Joseph Sullivan, Thomas J. Caperna, Savithiry Natarajan
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
To establish a proteomic reference map for soybean leaves, we separated and identified leaf proteins using two-dimensional polyacrylamide gel electrophoresis (2D-PAGE) and mass spectrometry (MS). Tryptic digests of 260 spots were subjected to peptide mass fingerprinting (PMF) by matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) MS. Fifty-three of these protein spots were identified by searching NCBInr and SwissProt databases using the Mascot search engine. Sixty-seven spots that were not identified by MALDI-TOF-MS analysis were analyzed with liquid chromatography tandem mass spectrometry (LC-MS/MS), and 66 of these spots were identified by searching against the NCBInr, SwissProt and expressed sequence tag (EST) databases. …
Comparative Mapping Of Bovine Chromosome 27 With Human Chromosome 8 Near A Dairy Form Qtl In Cattle, E. E. Connor, M. S. Ashwell, R. Schnabel, J. L. Williams
Comparative Mapping Of Bovine Chromosome 27 With Human Chromosome 8 Near A Dairy Form Qtl In Cattle, E. E. Connor, M. S. Ashwell, R. Schnabel, J. L. Williams
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
In the absence of a complete and annotated bovine genome sequence, detailed human-bovine comparative maps are one of the most effective tools for identification of positional candidate genes contributing to quantitative trait loci (QTL) in cattle. In the present study, eight genes from human chromosome 8 were selected for mapping in cattle to improve breakpoint resolution and confirm gene order on the comparative map near the 40 cM region of the BTA27 linkage map where a QTL affecting dairy form had previously been identified. The resulting map identified ADRB3 as a positional candidate gene for the QTL contributing to the …
The Best Dna Markers Pennies Can Buy A Specialized Set Of Cattle Markers For Improving Food Safety And Beef Quality, Michael P. Heaton
The Best Dna Markers Pennies Can Buy A Specialized Set Of Cattle Markers For Improving Food Safety And Beef Quality, Michael P. Heaton
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Researchers at the U.S. Meat Animal Research Center (USMARC) in Clay Center, Nebraska are developing a set of 100 DNA markers that will provide essential genetic information for improving food safety and beef quality in North American beef and dairy cattle. This powerful set of markers has been thoroughly screened to accomplish both DNA fingerprinting and parentage testing in essentially all U.S. beef and dairy populations, an ability that only a small fraction of known DNA markers have.
One key to success has been the careful sampling of U.S. beef and dairy populations to create a test panel representing the …
Dispersal Of Boll Weevils (Coleoptera: Curculionidae) From Cotton Modules Before Ginning, Thomas W. Sappington, Mark D. Arnold, Alan D. Brashears, Megha N. Parajulee, Stanley C. Carroll, Allen E. Knutson, John W. Norman Jr.
Dispersal Of Boll Weevils (Coleoptera: Curculionidae) From Cotton Modules Before Ginning, Thomas W. Sappington, Mark D. Arnold, Alan D. Brashears, Megha N. Parajulee, Stanley C. Carroll, Allen E. Knutson, John W. Norman Jr.
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
We characterized the level of risk of boll weevil, Anthonomus grandis grandis Boheman, reintroduction to an eradication zone posed by dispersal from cotton modules during and after transport to the gin. Mark-release-recapture experiments in August and September in Texas indicated that most weevils disperse rapidly from the module surface, temperature permitting, unless confined under a module tarp, where most died. Nevertheless, 1-5% of released weevils were recovered alive after 24 h on the side and top surfaces of modules, representing potential dispersants. Mortality of boll weevils caged on the top surface of a module was 95-100% after 1-4 d when …
Impact Of Trap Design, Windbreaks, And Weather On Captures Of European Corn Borer (Lepidoptera: Crambidae) In Pheromone-Baited Traps, Thomas W. Sappington, Brendon J. Reardon, Douglas V. Sumerford
Impact Of Trap Design, Windbreaks, And Weather On Captures Of European Corn Borer (Lepidoptera: Crambidae) In Pheromone-Baited Traps, Thomas W. Sappington, Brendon J. Reardon, Douglas V. Sumerford
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Pheromone-baited traps are often used in ecological studies of the European corn borer, Ostrinia nubilalis (Hübner) (Lepidoptera: Crambidae). However, differences in trap captures may be confounded by trap design, trap location relative to a windbreak, and changes in local weather. The objectives of this experiment were, first, to examine differences in O. nubilalis adult (moth) captures among the Intercept wing trap, the Intercept bucket/funnel UNI trap, and the Hartstack wire-mesh, 75-cm-diameter cone trap (large metal cone trap) as well as among three cone trap designs. Second, we examined the influence of the location of the large metal cone trap relative …
Dispersal Of Newly Eclosed European Corn Borer Adults (Lepidoptera: Crambidae) From Corn Into Small-Grain Aggregation Plots, Brendon J. Reardon, Douglas V. Sumerford, Thomas W. Sappington
Dispersal Of Newly Eclosed European Corn Borer Adults (Lepidoptera: Crambidae) From Corn Into Small-Grain Aggregation Plots, Brendon J. Reardon, Douglas V. Sumerford, Thomas W. Sappington
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Genetically modified, insecticidal Bacillus thuringiensis (Bt) corn, Zea mays L., hybrids are used throughout the Corn Belt for European corn borer, Ostrinia nubilalis(Hübner) (Lepidoptera: Crambidae), control. To slow development of Bt corn resistance, the Environmental Protection Agency requires growers to plant a refuge. Determining the appropriate distance between a refuge and Bt corn, and development of mitigation-remediation strategies such as mass releases of susceptible moths, requires an understanding of adult dispersal and mating behavior. However, much remains unknown about these behaviors. Because mating often occurs in grass near cornfields where adult O. nubilalis aggregate, we planted small-grain plots as …
Usmarc Beef Carcass Instrument Grading Systems, Tommy Wheeler, Steven Shackelford, Mohammad Koohmaraie
Usmarc Beef Carcass Instrument Grading Systems, Tommy Wheeler, Steven Shackelford, Mohammad Koohmaraie
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Evaluation of Beef Carcass Grades with Image Analysis
Beef Tenderness
Sugar-Enhanced Sweet Corn Cultivar Evaluation For Northern Indiana, 2006, Elizabeth T. Maynard
Sugar-Enhanced Sweet Corn Cultivar Evaluation For Northern Indiana, 2006, Elizabeth T. Maynard
Midwest Vegetable Trial Reports
The Indiana Agricultural Statistics Service reported sweet corn for fresh market sales was harvested from 5,200 acres in Indiana in 2005 and had a total value of $7.6 million. Sweet corn fields are located throughout the state. In Northern Indiana bicolor corn is most commonly grown. Varieties with improved eating quality are of interest to both producers and consumers. Producers are also interested in yield, ear size and appearance, and agronomic characteristics. This paper reports on eighteen sweet corn cultivars with homozygous se or mixed se and sh2 (synergistic) genetics that were evaluated at the Pinney-Purdue Ag Center, Wanatah, IN.
Supersweet Sweet Corn Cultivar Evaluation For Northern Indiana, 2006, Elizabeth T. Maynard
Supersweet Sweet Corn Cultivar Evaluation For Northern Indiana, 2006, Elizabeth T. Maynard
Midwest Vegetable Trial Reports
The Indiana Agricultural Statistics Service reported sweet corn for fresh market sales was harvested from 5,200 acres in Indiana in 2005 and had a total value of $7.6 million. Sweet corn fields are located throughout the state. In Northern Indiana bicolor corn is most commonly grown. Varieties with improved eating quality are of interest to both producers and consumers. Producers are also interested in yield, ear size and appearance, and agronomic characteristics. This paper reports on twenty sh2 sweet corn cultivars known as ‘supersweet’ or ‘enhanced’ or ‘augmented supersweet’ that were evaluated at the Pinney-Purdue Ag Center, Wanatah, IN.
Supersweet Sweet Corn Cultivar Evaluation For Northern Indiana, 2006, Elizabeth T. Maynard
Supersweet Sweet Corn Cultivar Evaluation For Northern Indiana, 2006, Elizabeth T. Maynard
Purdue Fruit and Vegetable Research Reports
The Indiana Agricultural Statistics Service reported sweet corn for fresh market sales was harvested from 5,200 acres in Indiana in 2005 and had a total value of $7.6 million. Sweet corn fields are located throughout the state. In Northern Indiana bicolor corn is most commonly grown. Varieties with improved eating quality are of interest to both producers and consumers. Producers are also interested in yield, ear size and appearance, and agronomic characteristics. This paper reports on twenty sh2 sweet corn cultivars known as ‘supersweet’ or ‘enhanced’ or ‘augmented supersweet’ that were evaluated at the Pinney-Purdue Ag Center, Wanatah, IN.
Sugar-Enhanced Sweet Corn Cultivar Evaluation For Northern Indiana, 2006, Elizabeth T. Maynard
Sugar-Enhanced Sweet Corn Cultivar Evaluation For Northern Indiana, 2006, Elizabeth T. Maynard
Purdue Fruit and Vegetable Research Reports
The Indiana Agricultural Statistics Service reported sweet corn for fresh market sales was harvested from 5,200 acres in Indiana in 2005 and had a total value of $7.6 million. Sweet corn fields are located throughout the state. In Northern Indiana bicolor corn is most commonly grown. Varieties with improved eating quality are of interest to both producers and consumers. Producers are also interested in yield, ear size and appearance, and agronomic characteristics. This paper reports on eighteen sweet corn cultivars with homozygous se or mixed se and sh2 (synergistic) genetics that were evaluated at the Pinney-Purdue Ag Center, Wanatah, IN.
Pumpkin Cultivar Evaluation, Northern Indiana, 2006, Elizabeth T. Maynard
Pumpkin Cultivar Evaluation, Northern Indiana, 2006, Elizabeth T. Maynard
Purdue Fruit and Vegetable Research Reports
"Pumpkins grown for Halloween and other decorative purposes continue to be an important crop for many Midwestern vegetable farmers. Breeders are developing new varieties with improved appearance and disease resistance. A trial was conducted to evaluate varieties."
On-Farm Evaluation Of Tomato Cultivars For Disease Resistance, 2006, Dan Egel, Butch Zandstra, Elizabeth T. Maynard
On-Farm Evaluation Of Tomato Cultivars For Disease Resistance, 2006, Dan Egel, Butch Zandstra, Elizabeth T. Maynard
Purdue Fruit and Vegetable Research Reports
Bacterial spot of tomatoes (Xanthomonas campestris pv. vesicatoria) causes lesions on leaves, stems and fruit. Under conditions of hot, humid, rainy weather, defoliation can result in a loss of yield. In addition, lesions on fruit result in a direct loss of marketability. This disease is managed primarily with applications of fixed copper bactericides, crop rotations, greenhouse sanitation and healthy seed/transplants. Even in properly managed commercial fields, however, bacterial spot can cause yield losses. Although there are no varieties with complete resistance to bacterial spot, we report here the results of an on-farm trial that indicates some varieties may have partial …
Pumpkin Cultivar Evaluation, Northern Indiana, 2006, Elizabeth T. Maynard
Pumpkin Cultivar Evaluation, Northern Indiana, 2006, Elizabeth T. Maynard
Midwest Vegetable Trial Reports
"Pumpkins grown for Halloween and other decorative purposes continue to be an important crop for many Midwestern vegetable farmers. Breeders are developing new varieties with improved appearance and disease resistance. A trial was conducted to evaluate varieties."
On-Farm Evaluation Of Tomato Cultivars For Disease Resistance, 2006, Dan Egel, Butch Zandstra, Elizabeth T. Maynard
On-Farm Evaluation Of Tomato Cultivars For Disease Resistance, 2006, Dan Egel, Butch Zandstra, Elizabeth T. Maynard
Midwest Vegetable Trial Reports
Bacterial spot of tomatoes (Xanthomonas campestris pv. vesicatoria) causes lesions on leaves, stems and fruit. Under conditions of hot, humid, rainy weather, defoliation can result in a loss of yield. In addition, lesions on fruit result in a direct loss of marketability. This disease is managed primarily with applications of fixed copper bactericides, crop rotations, greenhouse sanitation and healthy seed/transplants. Even in properly managed commercial fields, however, bacterial spot can cause yield losses. Although there are no varieties with complete resistance to bacterial spot, we report here the results of an on-farm trial that indicates some varieties may have partial …
Human Emanations And Related Natural Compounds That Inhibit Mosquito Host-Finding Abilities, Ulrich R. Bernier, Daniel Kline, Kenneth H. Posey
Human Emanations And Related Natural Compounds That Inhibit Mosquito Host-Finding Abilities, Ulrich R. Bernier, Daniel Kline, Kenneth H. Posey
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
One mechanism by which the action of semiochemicals can be classified is based on the behavioral impact within or external to the species of interest. As such, one can classify a chemical as one of the following2,3:
1. Pheromone, if it results in response between insects of the same species
2. Kairomone, if it results in response in another species that benefits the species receiving the chemical cue
3. Allomone, if it results in response in another species that benefits the species releasing the chemical cue
However, the distinctions can be more specific by classification of chemical cues …