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- Electronic Theses and Dissertations (26)
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Articles 1 - 30 of 46
Full-Text Articles in Life Sciences
Weed Establishment And Persistence After Water Pipeline Installation And Reclamation In The Mixed Grass Prairie Of Western North Dakota, Erin K. Espeland, Lora B. Perkins
Weed Establishment And Persistence After Water Pipeline Installation And Reclamation In The Mixed Grass Prairie Of Western North Dakota, Erin K. Espeland, Lora B. Perkins
Natural Resource Management Faculty Publications
Weeds in reclamations interfere with success by: 1) competing with desirable species seeded during revegetation; 2) preventing recolonization of reclamations by native species; and 3) reducing the integrity of landscapes by expanding from reclamations into adjacent, intact areas. In the Bakken oilfield of western North Dakota, dispersed reclamation activity and increased traffic may provide many opportunities for weeds to spread. To determine the potential for disturbance and reclamation to increase resident weed populations and introduce new weed species, we tracked twenty-one weed (non-native/ruderal/invasive) species over a four-year period after the installation of a 1.8 km livestock water pipeline and subsequent …
A Public–Industry Partnership For Enhancing Corn Nitrogen Research And Datasets: Project Description, Methodology, And Outcomes, Newell R. Kitchen, John F. Shanahan, Curtis J. Ransom, Christopher J. Bandura, Gregory M. Bean, James J. Camberato, Paul R. Carter, Jason D. Clark, Richard B. Ferguson, Fabian G. Fernandez, David W. Franzen, Carrie A.M. Laboski, Emerson D. Nafziger, Zhisheng Qing, John E. Sawyer, Matt Shafer
A Public–Industry Partnership For Enhancing Corn Nitrogen Research And Datasets: Project Description, Methodology, And Outcomes, Newell R. Kitchen, John F. Shanahan, Curtis J. Ransom, Christopher J. Bandura, Gregory M. Bean, James J. Camberato, Paul R. Carter, Jason D. Clark, Richard B. Ferguson, Fabian G. Fernandez, David W. Franzen, Carrie A.M. Laboski, Emerson D. Nafziger, Zhisheng Qing, John E. Sawyer, Matt Shafer
Agronomy, Horticulture and Plant Science Faculty Publications
Due to economic and environmental consequences of N lost from fertilizer applications in corn (Zea mays L.), considerable public and industry attention has been devoted to the development of N decision tools. Needed are research and databases and associated metadata, at numerous locations and years to represent a wide geographic range of soil and weather scenarios, for evaluating tool performance. The goals of this research were to conduct standardized corn N rate response field studies to evaluate the performance of multiple public-domain N decision tools across diverse soils and environmental conditions, develop and publish new agronomic science for improved …
Growing South Dakota (Summer 2017), College Of Agriculture &. Biological Sciences
Growing South Dakota (Summer 2017), College Of Agriculture &. Biological Sciences
Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)
This issue contains the 2016 SDSU Extension Annual Report.
Page] 2 From the Director
[Page] 3 WaterTouches Everything, Multi-State Network Strives to Enhance Water Stewardship
[Page] 6 From RubbleTo Renewal, Unique Art Project Helps Delmont Community Heal
[Page] 7 Future Focused, Community Development Program Helps Harness Ideas Into Action
[Page] 8 Health Help, Statewide Program Strives To Help Individuals Better Manage Chronic Health Condition
[Page] 10 Making An Impact, Master Gardener Program Helps Individuals & Communities Flourish
[Page] 12 Statewide Highlights & Happenings
[Page] 14 Outreach to Youth, Programs Foster Engagement With Diverse Youth Audiences
[Page] 17 A Look At …
Growing South Dakota (Spring 2017), College Of Agriculture &. Biological Sciences
Growing South Dakota (Spring 2017), College Of Agriculture &. Biological Sciences
Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)
[Page] 3 Opportunities With Oats SDSU Researchers Strive to Improve Varieties [Page] 6 Stopping Stem Canker Plant Pathologists Making Progress To Keep This Disease At Bay
[Page] 7 Disease Detectives Vet Scientists Researching Another Emerging Virus [Page] 8 Community Support Devastating West River Fire Brings Ag Industry Together
[Page] 10 Research In Progress Dakota Lakes Research Farm Investigates Three Big Ideas
[Page] 14 Water Quality Quest Understanding E. Coli Behavior Aims To Aid Water Quality In Rivers & Streams
[Page] 15 Verifying Ag Land Valuation Researchers Assist In Reviewing Ag Land’s Classification
[Page] 16 Cattle Insights Fetal Programming Research Evaluates …
Biomass Yield Of Switchgrass Cultivars Under High- Versus Low-Input Conditions, Michael D. Casler, Sergio Sosa, Lindsey Hoffman, Hilary Mayton, Calvin Ernst, Paul R. Adler, Arvid R. Boe, Stacy A. Bonos
Biomass Yield Of Switchgrass Cultivars Under High- Versus Low-Input Conditions, Michael D. Casler, Sergio Sosa, Lindsey Hoffman, Hilary Mayton, Calvin Ernst, Paul R. Adler, Arvid R. Boe, Stacy A. Bonos
Agronomy, Horticulture and Plant Science Faculty Publications
Switchgrass (Panicum virgatum L.) is undergoing development as a biomass crop to support conversion of cellulosic biomass to energy. To avoid the competition of biomass with food or feed crops, most commercialization proposals suggest that switchgrass should be grown exclusively on marginal lands that are not fit for food or feed production. The objective of this study was to investigate the potential for cultivar x environment interactions that would affect the methods and approaches for breeding and evaluating switchgrass cultivars, including both upland and lowland types, for high-input versus low-input types of environments. Biomass yield was measured on 14 cultivars …
Fates Of Ovules In Groundplum Milk-Vetch (Astragalus Crassicarpus Nutt.) In South Dakota, Arvid Boe, Paul J. Johnson
Fates Of Ovules In Groundplum Milk-Vetch (Astragalus Crassicarpus Nutt.) In South Dakota, Arvid Boe, Paul J. Johnson
Native Plant Focused Publications
Groundplum milk-vetch (Astragalus crassicarpus Nutt.) is a native legume found on gravelly to sandy prairie uplands throughout central North America. The large and fleshy fruits, or pods, of this species were consumed by indigenous people and European settlers, and are cached by rodents. Our previous research on native legumes of the northern Great Plains indicated seed predation by insects, notably bruchid beetles belonging to the genus Acanthoscelides Schilsky, was a dominant factor determining viable seed production in natural and artificial plant assemblages. However, although we have studied the reproductive biology of several species of Astragalus L., none had fleshy pods. …
Grain Sorghum Variety Trial Archive, John Rickertsen, Bruce Swan, Nathan Mueller, Christopher Graham, Jonathan Kleinjan, Kevin Kirby, Dwayne Beck, Michael Swan
Grain Sorghum Variety Trial Archive, John Rickertsen, Bruce Swan, Nathan Mueller, Christopher Graham, Jonathan Kleinjan, Kevin Kirby, Dwayne Beck, Michael Swan
SDSU Extension Publications Archive
This report features the available sorghum data from 2003-2017. Crop performance testing results are released annually through the activities of SDSU Extension and the South Dakota Agricultural Experiment Station at SDSU.
Alfalfa Variety Trial Results Archive, Vance Owens, R. Bortnem, D. Gustafson, E. Omdahl, Chris Lee, Peter Jeranyama, Matt Hansen, Karla Hernandez
Alfalfa Variety Trial Results Archive, Vance Owens, R. Bortnem, D. Gustafson, E. Omdahl, Chris Lee, Peter Jeranyama, Matt Hansen, Karla Hernandez
SDSU Extension Publications Archive
Crop performance testing results are released annually through the activities of SDSU Extension and the South Dakota Agricultural Experiment Station at SDSU.
Corn Silage Variety Trial Archive, Jonathan Kleinjan, David Casper, Kevin K. Kirby, S. M. Hawks
Corn Silage Variety Trial Archive, Jonathan Kleinjan, David Casper, Kevin K. Kirby, S. M. Hawks
SDSU Extension Publications Archive
This report features the available corn silage data from 2003-2017. Crop performance testing results are released annually through the activities of SDSU Extension and the South Dakota Agricultural Experiment Station at SDSU.
Field Pea Variety Trial Archive, Robert Hall, John Rickertsen, Kevin K. Kirby, Bruce Swan, G. Piechowski, Jesse Hall, Nathan Mueller, Ruth Beck, Christopher Graham, Jonathan Kleinjan, S. M. Hawks, Michael Swan
Field Pea Variety Trial Archive, Robert Hall, John Rickertsen, Kevin K. Kirby, Bruce Swan, G. Piechowski, Jesse Hall, Nathan Mueller, Ruth Beck, Christopher Graham, Jonathan Kleinjan, S. M. Hawks, Michael Swan
SDSU Extension Publications Archive
This report features the available pea data from 2003-2017. Crop performance testing results are released annually through the activities of SDSU Extension and the South Dakota Agricultural Experiment Station at SDSU.
Winter Wheat Variety Trial Archive, John Rickertsen, Robert Hall, Amir Ibrahim, Kevin Kirby, Thandiwe Nleya, Bruce Swan, Steve Kalsbeck, Bill Berzonsky, Nathan Mueller, Christopher Graham, Shaukat Ali, S. M. Hawks
Winter Wheat Variety Trial Archive, John Rickertsen, Robert Hall, Amir Ibrahim, Kevin Kirby, Thandiwe Nleya, Bruce Swan, Steve Kalsbeck, Bill Berzonsky, Nathan Mueller, Christopher Graham, Shaukat Ali, S. M. Hawks
SDSU Extension Publications Archive
Crop performance testing results are released annually through the activities of SDSU Extension and the South Dakota Agricultural Experiment Station at SDSU.
Sunflower & Flax Hybrid Performance And Variety Trial Archive, Kathleen Grady, Lee Gilbertson, Thandiwe Nleya, John Rickertsen, Bruce Swan, Febina Mathew, Christopher Graham, Nathan Braun, Paul Okello
Sunflower & Flax Hybrid Performance And Variety Trial Archive, Kathleen Grady, Lee Gilbertson, Thandiwe Nleya, John Rickertsen, Bruce Swan, Febina Mathew, Christopher Graham, Nathan Braun, Paul Okello
SDSU Extension Publications Archive
This report features the available sunflower and flax data from 2003-2017. Crop performance testing results are released annually through the activities of SDSU Extension and the South Dakota Agricultural Experiment Station at SDSU.
Oats Variety Trial Archive, Robert Hall, Kevin K. Kirby, John Rickertsen, Bruce Swan, G. Piechowski, Jesse Hall, S. M. Hawks, Nathan Mueller, Christopher Graham, Jonathan Kleinjan, Shaukat Ali
Oats Variety Trial Archive, Robert Hall, Kevin K. Kirby, John Rickertsen, Bruce Swan, G. Piechowski, Jesse Hall, S. M. Hawks, Nathan Mueller, Christopher Graham, Jonathan Kleinjan, Shaukat Ali
SDSU Extension Publications Archive
This report features the available oats data from 2003-2017. Crop performance testing results are released annually through the activities of SDSU Extension and the South Dakota Agricultural Experiment Station at SDSU.
Spring Wheat Variety Trial Archive, Robert Hall, Kevin Kirby, John Rickertsen, Bruce Swan, G. Piechowski, Jesse Hall, Nathan Mueller, Christopher Graham, S. M. Hawks, Jonathan Kleinjan
Spring Wheat Variety Trial Archive, Robert Hall, Kevin Kirby, John Rickertsen, Bruce Swan, G. Piechowski, Jesse Hall, Nathan Mueller, Christopher Graham, S. M. Hawks, Jonathan Kleinjan
SDSU Extension Publications Archive
Crop performance testing results are released annually through the activities of SDSU Extension and the South Dakota Agricultural Experiment Station at SDSU.
Corn Hybrid Trial Archive, Robert Hall, Kevin Kirby, G. Piechowski, Nathan Mueller, Jonathan Kleinjan, Jesse Hall, S. M. Hawks
Corn Hybrid Trial Archive, Robert Hall, Kevin Kirby, G. Piechowski, Nathan Mueller, Jonathan Kleinjan, Jesse Hall, S. M. Hawks
SDSU Extension Publications Archive
This report features the available corn data from 2003-2017. Crop performance testing results are released annually through the activities of SDSU Extension and the South Dakota Agricultural Experiment Station at SDSU.
Soybean Variety Trial Archive, Kevin Kirby, Robert Hall, G. Piechowski, Jesse Hall, S. M. Hawks, Nathan Mueller, Jonathan Kleinjan
Soybean Variety Trial Archive, Kevin Kirby, Robert Hall, G. Piechowski, Jesse Hall, S. M. Hawks, Nathan Mueller, Jonathan Kleinjan
SDSU Extension Publications Archive
This report features the available soybean variety trial data from 2003-2017. Crop performance testing results are released annually through the activities of SDSU Extension and the South Dakota Agricultural Experiment Station at SDSU.
Fates Of Ovules In Groundplum Milk-Vetch (Astragalus Crassicarpus Nutt.) In South Dakota, Arvid A. Boe, Paul J. Johnson
Fates Of Ovules In Groundplum Milk-Vetch (Astragalus Crassicarpus Nutt.) In South Dakota, Arvid A. Boe, Paul J. Johnson
Oak Lake Field Station Research Publications
Groundplum milk-vetch (Astragalus crassicarpus Nutt.) is a native legume found on gravelly to sandy prairie uplands throughout central North America. The large and fleshy fruits, or pods, of this species were consumed by indigenous people and European settlers, and are cached by rodents. Our previous research on native legumes of the northern Great Plains indicated seed predation by insects, notably bruchid beetles belonging to the genus Acanthoscelides Schilsky, was a dominant factor determining viable seed production in natural and artificial plant assemblages. However, although we have studied the reproductive biology of several species of Astragalus L., none had fleshy pods. …
Perimeter Cropping As A Means Of Reducing Insect Injury And Increasing Crop Yield, Brett L. Owens
Perimeter Cropping As A Means Of Reducing Insect Injury And Increasing Crop Yield, Brett L. Owens
Electronic Theses and Dissertations
The squash vine borer, Melittia cucurbitae Harris, (Lepidoptera: Sesiidae) is a destructive insect known to injure a broad range of cucurbit crops. Many studies have focused on insecticide management of this insect in squash (Cucurbita) and pumpkin (Cucurbita pepo Linnaeus) production; however, little work has been documented on organic approaches to reduce or eliminate injury from this pest to these crops in the Midwest. This study used trap cropping and pollinator mixtures to test whether a reduction of squash vine borer could be achieved in a specific cultivar of pumpkins, Cucurbita pepo ‘Howden’. The study was …
Diaporthe, Soybean Cyst Nematode, And Soybean Aphid: An Evaluation Of Potential Interactions Occurring Among Pests On Soybean In South Dakota, John Philip Posch
Diaporthe, Soybean Cyst Nematode, And Soybean Aphid: An Evaluation Of Potential Interactions Occurring Among Pests On Soybean In South Dakota, John Philip Posch
Electronic Theses and Dissertations
Soybean Glycine max (L.) Merr., is an important crop grown in South Dakota, with an estimated production of $2.33 billion in 2015. However, soybean production in South Dakota is compromised by four pests, the fungal pathogens Diaporthe longicolla (Hobbs) Santos, Vrandecic, and Phillips and Diaporthe caulivora (Athow and Caldwell) Santos, Vrandecic, and Phillips, the soybean cyst nematode Heterodera glycines Ichinohe (SCN), and the soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae). Additionally, these pest can co-occur in fields within South Dakota and the implications associated with interactions among these pests are unknown. We hypothesized that both Diaporthe species would interact with …
Impacts Of Landscape Position And Nitrogen Fertilizer On Soils, Carbon And Nitrogen Leaching, And Greenhouse Gas Fluxes From Switchgrass Production In South Dakota, Liming Lai
Electronic Theses and Dissertations
Switchgrass (Panicum virgatum L.) production for biofuels has potential economic values. It can also improve soil properties and perform better under marginal lands than the other major biomass crops. However, little is known about its potential ecological impacts assessed in terms of soils, water, and air quality in the northern Great Plains region of United States of America. The objectives of this study were to (i) evaluate the impacts of nitrogen fertilization rate (N rate) and landscape position on soil pH, soil organic carbon (SOC), total nitrogen (TN), bulk density (ρb), and phosphorus (P) in switchgrass field; (ii) assess …
Phytophthora Sojae Infecting Soybean: Pathotype Diversity, New Sources Of Resistance And Interaction With The Soybean Cyst Nematode, Rawnaq Nazneen Chowdhury
Phytophthora Sojae Infecting Soybean: Pathotype Diversity, New Sources Of Resistance And Interaction With The Soybean Cyst Nematode, Rawnaq Nazneen Chowdhury
Electronic Theses and Dissertations
Phytophthora root and stem rot, caused by Phytophthora sojae Kaufmann and Gerdemann, is an important disease of soybean (Glycine max L.) in South Dakota. To gain a better understanding of the importance of P. sojae in South Dakota, specifically pathotype diversity, identification of new resistance sources and the interaction with the soybean cyst nematode (Heterodera glycines Ichinohe, SCN), this research was undertaken with the following objectives - 1) to characterize the pathotype diversity of P. sojae causing Phytophthora root and stem rot on soybean in commercial fields in South Dakota; 2) to compare inoculation methods to evaluate for …
Identification Of Physiological And Morphological Traits Governing High Water Use Efficiency In Alfalfa, Krishna Ghimire
Identification Of Physiological And Morphological Traits Governing High Water Use Efficiency In Alfalfa, Krishna Ghimire
Electronic Theses and Dissertations
Alfalfa is an important forage crop worldwide. Being deep-rooted, N2-fixing and high yielding, alfalfa has great economic, ecological and nutritional benefits. While alfalfa is a high yielding crop, its high productivity depends on irrigation water in many areas and consumes the greatest amount of water among all the major crops. With a growing demand for water resources due to an increase in human population and industrial water use, plus frequent drought due to climate change, irrigation water has become increasingly scarce and expensive. To sustain high production of alfalfa with limited water resource, alfalfa cultivars with improved water use efficiency …
Interactive Effects Of Cover Crops, Invertebrate Communities And Soil Health In Corn Production Systems, Claire Lacanne
Interactive Effects Of Cover Crops, Invertebrate Communities And Soil Health In Corn Production Systems, Claire Lacanne
Electronic Theses and Dissertations
The adoption of regenerative farming practices is gaining traction, but the costs and benefits are not often considered on a systems level. Encouraging biodiversity and soil health is the goal of many agricultural practices used in regenerative farming; regenerative systems employ practices which abide by the two main principles of increasing biodiversity and decreasing disturbance, with the goal of encouraging ecosystem functioning to minimize inputs and maximize the productivity of a farm. I examined the management of corn (Zea mays) fields across four states in the Upper Midwest region of the United States. Regenerative systems in this study …
Phenotypic Plasticity Of Native And Invasive Cool-Season Grasses In Response To Frequency Of Moisture Availability, Ming-Yu Stephens
Phenotypic Plasticity Of Native And Invasive Cool-Season Grasses In Response To Frequency Of Moisture Availability, Ming-Yu Stephens
Electronic Theses and Dissertations
Phenotypic plasticity, the ability of an individual to alter its growth in response to environmental conditions, is an attribute that is considered a likely invader attribute, as it provides the opportunity to expand its ecological niche breadth. Adaptive phenotypic plasticity can affect not only the ability to establish in a new environment, but also the ability to outperform the existing vegetation over time. Bromus inermis (smooth brome) and Poa pratensis (Kentucky bluegrass) are invasive species in tall- and mixed-grass prairie ecosystems. The objectives of this two-part study were to quantify the adaptive plasticity of biomass accumulation and tiller production in …
Response Of Soil Properties To 23-25 Years Of Diverse Crop Rotations And Tillage Systems In South Dakota, Usa, Abdullah H. Alhameid
Response Of Soil Properties To 23-25 Years Of Diverse Crop Rotations And Tillage Systems In South Dakota, Usa, Abdullah H. Alhameid
Electronic Theses and Dissertations
Diverse cropping systems and no-till (NT) are beneficial in improving soil organic carbon (SOC) and other soils properties. The present study was conducted to evaluate the interactions and impacts of long-term tillage and diverse crop rotation systems on soil quality indicators that include a range of soil chemical, physical, hydrological, and microbial properties. The study was established in 1991 at Beresford, South Dakota and included three crop rotation systems [2-yr; maize (Zea mays L.)-soybean (Glycine max L.), 3-yr; maize-soybean-oat (Avena sativa L.), and 4-yr; maize-soybean-oat-wheat (Triticum aestivum L.)] managed under two tillage systems (NT and CT; conventional- tillage). Soil sampling …
Using Gluten Index To Improve Spring Wheat Loaf Volume Prediction, Yaming Lu
Using Gluten Index To Improve Spring Wheat Loaf Volume Prediction, Yaming Lu
Electronic Theses and Dissertations
Wheat (Triticum aestivum L.) is the most widely cultivated crop in the world and contributes about 20% of the total dietary calories and proteins globally. Unique properties of doughs formed from wheat flour make it feasible to produce a range of food, including bread. Loaf volume is the most perceptible indicator for breadmaking quality. Selection in the early generations for loaf volume is difficult due to the requirement of the large volume of grains and due to the costly, time-consuming, and labor-intensive evaluation process. Identification of simple and reliable predictive tests for loaf volume is highly desirable. This study …
Soil Response To Cropping Sequences And Grazing Under Integrated Crop-Livestock System, Hanxiao Feng
Soil Response To Cropping Sequences And Grazing Under Integrated Crop-Livestock System, Hanxiao Feng
Electronic Theses and Dissertations
Integrated crop-livestock system (ICLS) is helpful in diversifying a farm for improving its long-term sustainability and economic benefits. In the United States, the ICLS has been increasing in recent years because of its economic and environmental benefits. However, the impacts of ICLS on soil quality is not well documented in North Dakota. The objective of our study is to assess the impacts of cropping sequences and cattle grazing on the selected soil properties in the crop diversity and livestock integration practice. This study site was established in 2010 at the Dickinson Research Extension Center, Dickinson, North Dakota. The study design …
Development Of Best Management Practices For Production Of Ethiopian Mustard (Brassica Carinata) In South Dakota, Phillip Kenneth Alberti
Development Of Best Management Practices For Production Of Ethiopian Mustard (Brassica Carinata) In South Dakota, Phillip Kenneth Alberti
Electronic Theses and Dissertations
Ethiopian mustard (Brassica carinata) is an alternative non-food oilseed crop which has received interest for its potential as a low-input option for production in the Northern Great Plains (NGP). As B. carinata is a new crop to the NGP, the best management practices have yet to be developed. The overall goal of this project was to develop best management practices for B. carinata production in two diverse agroenvironments in South Dakota. Two field experiments were conducted to assess the response of two B. carinata varieties to i) four seeding rates (4.5, 9, 13.5, and 18 kg ha-1 …
Improvement Of Milling And Nutritional Quality Characteristics Of Oats Through Genomic Selection, Sudha Neupane Adhikari
Improvement Of Milling And Nutritional Quality Characteristics Of Oats Through Genomic Selection, Sudha Neupane Adhikari
Electronic Theses and Dissertations
Oats can lower cholesterol, reduce risks of type-2 diabetes, and help prevent heart diseases when consumed daily. Therefore, it is important to evaluate and select breeding lines with desirable milling and nutritional quality traits. Genomic selection, which uses genotyping data to predict the breeding value of an individual, is a promising method to increase genetic gain by selecting for quality traits earlier in the line development process. In this study, we collected phenotypic data for three nutritional traits (protein, β- glucan, and fat content) and five milling quality traits (percent plumps, percent thins, percent plump groat, groat percent and thousand …
Native Species For Biomass Production And Roadside Habitat In South Dakota, Jacob Foley
Native Species For Biomass Production And Roadside Habitat In South Dakota, Jacob Foley
Electronic Theses and Dissertations
Native grasses and forbs are being considered for planting along South Dakota roadsides to create a favorable habitat for wildlife while also allowing landowners a source of forage and biomass production. South Dakota is host to 54,900 hectares (145,000 acres) of right-of-way that are managed by the South Dakota Department of Transportation. Approximately 80% of the roadsides are used by landowners for hay production. Species diversity and potential biomass yield were determined for the current roadside vegetation along four transects (SD Highways 14, 34 and 50) and SD I- 29 between White, SD and Elk Point, SD. Smooth bromegrass (Bromus …