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Plant Biology

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The Assessment Of Range Land Suitability From The Apiculture Aspect With Using Gis, Sh. Fadaee, Hossein Arzani, S. H. Kaboli Aug 2021

The Assessment Of Range Land Suitability From The Apiculture Aspect With Using Gis, Sh. Fadaee, Hossein Arzani, S. H. Kaboli

IGC Proceedings (1977-2023)

No abstract provided.


An Investigation Of Aromatic Plant In Hongyuan, Liangbin Zhou, Cuihua Ding Aug 2021

An Investigation Of Aromatic Plant In Hongyuan, Liangbin Zhou, Cuihua Ding

IGC Proceedings (1977-2023)

No abstract provided.


The Importance Of Waste Grassland For Potential Biomass And Bio‐Energy Production In China, Liangzheng Yan, Lin Zhang, Shiqiang Wang, Xiaoyu Chen, Lin Hu Aug 2021

The Importance Of Waste Grassland For Potential Biomass And Bio‐Energy Production In China, Liangzheng Yan, Lin Zhang, Shiqiang Wang, Xiaoyu Chen, Lin Hu

IGC Proceedings (1977-2023)

No abstract provided.


Study On The Supercritical Fluid Extraction Techniques Of Alfalfa Chlorophyll, Zhen Zhang, Zhizhong Cao, Hongli Wang Aug 2021

Study On The Supercritical Fluid Extraction Techniques Of Alfalfa Chlorophyll, Zhen Zhang, Zhizhong Cao, Hongli Wang

IGC Proceedings (1977-2023)

No abstract provided.


Impact Of Cover Crop Monocultures And Mixtures On Organic Carbon Contents Of Soil Aggregates, Daphne Topps, Imam Ul Khabir, Hagir Abdelmagid, Todd Jackson, Javed Iqbal, Boakai K. Robertson, Zahida Hassan Pervaiz, Muhammad Saleem Aug 2021

Impact Of Cover Crop Monocultures And Mixtures On Organic Carbon Contents Of Soil Aggregates, Daphne Topps, Imam Ul Khabir, Hagir Abdelmagid, Todd Jackson, Javed Iqbal, Boakai K. Robertson, Zahida Hassan Pervaiz, Muhammad Saleem

Department of Agronomy and Horticulture: Faculty Publications

Cover crops are considered an integral component of agroecosystems because of their positive impacts on biotic and abiotic indicators of soil health. At present, we know little about the impact of cover crop types and diversity on the organic carbon (OC) contents of different soil aggregate-size classes. In this study, we investigated the effect of cover plant diversity on OC contents of different soil aggregates, such as macro- (<2000–500 µm), meso- (<500–250 µm), and micro-aggregates (<250 µm). Our experiment included a total of 12 experimental treatments in triplicate; six different monoculture treatments such as chickling vetch (Vicia villosa), crimson clover (Trifolium incarnatum), hairy vetch (Vicia villosa), field peas (Pisum sativum), oilseed radish (Raphanus sativus), and mighty mustard (Brassica juncea), and their three- and six-species mixture treatments, including one unplanted control treatment. We performed this experiment usingdeep pots that contained soil collected from a corn-soybean rotation field. At vegetative maturity of cover plants (about 70 days), we took soil samples, and the soil aggregate-size classes were separated by the dry sieving. We hypothesized that cover crop type and diversity will improve OC contents of different soil aggregate-size classes. We found that cover plant species richness weakly positively increased OC contents of soil macro-aggregates (p = 0.056), whereas other aggregate-size classes did not respond to cover crop diversity gradient. Similarly, the OC contents of macroaggregates varied significantly (p = 0.013) under cover crop treatments, though neither monoculture nor mixture treatments showed significantly higher OC contents than the control treatment in this short-term experiment. Interestingly, the inclusion of hairy vetch and oilseed radish increased and decreased the OC contents of macro- and micro-aggregates, respectively. Moreover, we found a positive correlation between shoot biomass and OC contents of macroaggregates. Overall, our results suggest that species-rich rather than -poor communities may improve OC contents of soil macroaggregates, which constitute a major portion of soil systems, and are also considered as important indicators of soil functions.


Anti‐Microbial Activities Of Root Extracts Of Cichorium Intybus L., Quanzhen Wang, Tianming Hu, Yamei Xu Aug 2021

Anti‐Microbial Activities Of Root Extracts Of Cichorium Intybus L., Quanzhen Wang, Tianming Hu, Yamei Xu

IGC Proceedings (1977-2023)

No abstract provided.


Promising Features Of The Legume Species Bituminaria Bituminosa As A Novel Forage Plant And For Pharmaceutical Purposes, L. Pecetti, A. Tava, E. Piano, E. Biazzi, S. Esposti, A. Ursino, B. Pintus Aug 2021

Promising Features Of The Legume Species Bituminaria Bituminosa As A Novel Forage Plant And For Pharmaceutical Purposes, L. Pecetti, A. Tava, E. Piano, E. Biazzi, S. Esposti, A. Ursino, B. Pintus

IGC Proceedings (1977-2023)

No abstract provided.


Diversity And Dynamics Of Soil Mesofauna Associated With Natural Grasslands In Central India, Sharmila Roy, Ruquaeya Bano Aug 2021

Diversity And Dynamics Of Soil Mesofauna Associated With Natural Grasslands In Central India, Sharmila Roy, Ruquaeya Bano

IGC Proceedings (1977-2023)

No abstract provided.


Pasture Management For Conservation Of Multipurpose Plants In Italian Mountains, Andrea Pardini, V. Pratesi, R. Tallarico Aug 2021

Pasture Management For Conservation Of Multipurpose Plants In Italian Mountains, Andrea Pardini, V. Pratesi, R. Tallarico

IGC Proceedings (1977-2023)

No abstract provided.


Participatory Identification Of Factors Inhibiting Integrated Management Of Livestock And Wildlife Production On Kenyan Rangelands, E. N. Muthiani, S. K. Karimi Aug 2021

Participatory Identification Of Factors Inhibiting Integrated Management Of Livestock And Wildlife Production On Kenyan Rangelands, E. N. Muthiani, S. K. Karimi

IGC Proceedings (1977-2023)

No abstract provided.


Biomass Production On Farms In The Eastern United States, Thomas C. Keene, S. Ray Smith, Michael D. Montross Aug 2021

Biomass Production On Farms In The Eastern United States, Thomas C. Keene, S. Ray Smith, Michael D. Montross

IGC Proceedings (1977-2023)

No abstract provided.


Enhancing Our Understanding Of Plant Cell-To-Cell Interactions Using Single-Cell Omics, Sandra Thibivilliers, Marc Libault Aug 2021

Enhancing Our Understanding Of Plant Cell-To-Cell Interactions Using Single-Cell Omics, Sandra Thibivilliers, Marc Libault

Department of Agronomy and Horticulture: Faculty Publications

Plants are composed of cells that physically interact and constantly adapt to their environment. To reveal the contribution of each plant cells to the biology of the entire organism, their molecular, morphological, and physiological attributes must be quantified and analyzed in the context of the morphology of the plant organs. The emergence of single-cell/nucleus omics technologies now allows plant biologists to access different modalities of individual cells including their epigenome and transcriptome to reveal the unique molecular properties of each cell composing the plant and their dynamic regulation during cell differentiation and in response to their environment. In this manuscript, …


Tandem Duplicate Expression Patterns Are Conserved Between Maize Haplotypes Of The Α-Zein Gene Family, Preston Hurst, James C. Schnable, David R. Holding Aug 2021

Tandem Duplicate Expression Patterns Are Conserved Between Maize Haplotypes Of The Α-Zein Gene Family, Preston Hurst, James C. Schnable, David R. Holding

Department of Agronomy and Horticulture: Faculty Publications

Tandem duplication gives rise to copy number variation and subsequent functional novelty among genes as well as diversity between individuals in a species. Functional novelty can result from either divergence in coding sequence or divergence in patterns of gene transcriptional regulation. Here, we investigate conservation and divergence of both gene sequence and gene regulation between the copies of the α-zein gene family in maize inbreds B73 and W22. We used RNA-seq data generated from developing, self-pollinated kernels at three developmental stages timed to coincide with early and peak zein expression. The reference genome annotations for B73 and W22 were modified …


Students And Farmers Planning And Implementing Grass Based Agroecologic Dairy Systems As A Regular Statewide Program: The Development Of Participative Methodology Responsible For 622 Family Farm Projects, W. Murphy, A. Schmitt, F. Busnardo, J. Ross, L. Assing, A. Nacimento Aug 2021

Students And Farmers Planning And Implementing Grass Based Agroecologic Dairy Systems As A Regular Statewide Program: The Development Of Participative Methodology Responsible For 622 Family Farm Projects, W. Murphy, A. Schmitt, F. Busnardo, J. Ross, L. Assing, A. Nacimento

IGC Proceedings (1977-2023)

No abstract provided.


Protecting Wildlife Habitat On Ranchettes, L. J. Kennedy, Ken Strom, Jacelyn Downey, Alison Lyon‐Holloran, Robert Petty Aug 2021

Protecting Wildlife Habitat On Ranchettes, L. J. Kennedy, Ken Strom, Jacelyn Downey, Alison Lyon‐Holloran, Robert Petty

IGC Proceedings (1977-2023)

No abstract provided.


Strategies For Sustaining Multiple Ecosystem Services From Rangelands, Kris M. Havstad, J. R. Brown, J. E. Herrick, D. P. C. Peters, E. L. Fredrickson, Brandon T. Bestelmeyer, R. Pieper Aug 2021

Strategies For Sustaining Multiple Ecosystem Services From Rangelands, Kris M. Havstad, J. R. Brown, J. E. Herrick, D. P. C. Peters, E. L. Fredrickson, Brandon T. Bestelmeyer, R. Pieper

IGC Proceedings (1977-2023)

No abstract provided.


Classroom To Paddock: Delivery Of Grazing Land Management Education In The Northern Territory, Australia, Ellena Hannah Aug 2021

Classroom To Paddock: Delivery Of Grazing Land Management Education In The Northern Territory, Australia, Ellena Hannah

IGC Proceedings (1977-2023)

No abstract provided.


The Agdal System Or The Art Of Managing Spatio‐Temporality Of Forage Resources And Risks In The High Atlas Mountains Of Morocco, Didier Genin Aug 2021

The Agdal System Or The Art Of Managing Spatio‐Temporality Of Forage Resources And Risks In The High Atlas Mountains Of Morocco, Didier Genin

IGC Proceedings (1977-2023)

No abstract provided.


Australian Sheep Farmers Are Increasing Pasture Utilisation And Reducing Risk With Easy‐To‐Use Tools From Lifetimewool, M. Curnow, J. Whale, D. Gordon Aug 2021

Australian Sheep Farmers Are Increasing Pasture Utilisation And Reducing Risk With Easy‐To‐Use Tools From Lifetimewool, M. Curnow, J. Whale, D. Gordon

IGC Proceedings (1977-2023)

No abstract provided.


Are Drought‐Related Crashes In Pastoral Cattle Herds Predictable? — More Evidence Of Equilibrium Dynamics From The Douthern Ethiopian Rangelands, D. Layne Coppock, G. Gebru, S. Mesele, S. Desta Aug 2021

Are Drought‐Related Crashes In Pastoral Cattle Herds Predictable? — More Evidence Of Equilibrium Dynamics From The Douthern Ethiopian Rangelands, D. Layne Coppock, G. Gebru, S. Mesele, S. Desta

IGC Proceedings (1977-2023)

No abstract provided.


An Evolving Model For A Livestock And Fodder Development Project Involving The Poverty Stricken Communities Of The Eastern Cape Province, South Africa, P. W. Conradie, D. Swart, B. King, M. Macanda, U. Gulwa, G. Jordaan Aug 2021

An Evolving Model For A Livestock And Fodder Development Project Involving The Poverty Stricken Communities Of The Eastern Cape Province, South Africa, P. W. Conradie, D. Swart, B. King, M. Macanda, U. Gulwa, G. Jordaan

IGC Proceedings (1977-2023)

No abstract provided.


Why Farmers Don't Always Practice 'Optimum' Management: Case Study Of Small Stock Ranching Systems In Southern Namibia, Stephanie E. Domptail, Alexander Popp, Ernst‐August Nuppenau Aug 2021

Why Farmers Don't Always Practice 'Optimum' Management: Case Study Of Small Stock Ranching Systems In Southern Namibia, Stephanie E. Domptail, Alexander Popp, Ernst‐August Nuppenau

IGC Proceedings (1977-2023)

No abstract provided.


Assessing The Contribution Of Mixed Farming Systems To Biodiversity Across Australia's Sheep‐Wheat Zone: The Grain & Graze Participatory Research Model, Kerry L. Bridle, Peter Mcquillan, Dave Green, Janet Smith, Margy Fitzgerald, Ted Lefroy Aug 2021

Assessing The Contribution Of Mixed Farming Systems To Biodiversity Across Australia's Sheep‐Wheat Zone: The Grain & Graze Participatory Research Model, Kerry L. Bridle, Peter Mcquillan, Dave Green, Janet Smith, Margy Fitzgerald, Ted Lefroy

IGC Proceedings (1977-2023)

No abstract provided.


Marker-Assisted Selection To Determine The Introgression Of Rpv-3 Mediated Downy Mildew Resistance In 'Chambourcin' X 'Caberenet Sauvignon' Grapevine Population, Kavya Sri Tummala Aug 2021

Marker-Assisted Selection To Determine The Introgression Of Rpv-3 Mediated Downy Mildew Resistance In 'Chambourcin' X 'Caberenet Sauvignon' Grapevine Population, Kavya Sri Tummala

Graduate Theses/Dissertations

Downy mildew caused by the fungus, Plasmopara viticola in the grapes is one of the major diseases affecting crop yield throughout the world. Breeding grapes via conventional methods for the downy mildew resistance will take approximately 25-30 years to fully evaluate and release new cultivars. Because of the long breeding cycle in woody plant species like grape, developing DNA markers linked to genes or quantitative trait loci (QTLs) for horticultural traits can greatly accelerate the breeding process and allow a much more accurate selection of progeny. This study aims to determine the presence of resistance in the 267 F1 genotypes …


Evaluating Evapotranspiration And Management Of Glyphosate-Resistant Palmer Amaranth (Amaranthus Palmeri S. Watson), Jasmine M. Mausbach Aug 2021

Evaluating Evapotranspiration And Management Of Glyphosate-Resistant Palmer Amaranth (Amaranthus Palmeri S. Watson), Jasmine M. Mausbach

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Palmer amaranth (PA) is the most problematic weed in agronomic cropping systems in the United States. Acetolactate synthase (ALS) inhibitor-/glyphosate-resistant (GR) PA has been confirmed in Nebraska and is widespread in several counties. Soybean resistant to isoxaflutole/glufosinate/glyphosate has been developed to provide additional herbicide sites of action for control of herbicide-resistant weeds. The objectives of this study were to evaluate herbicide programs for control of ALS inhibitor/GR PA and their effect on PA density and biomass, as well as soybean injury and yield in isoxaflutole/glufosinate/glyphosate-resistant soybean. A PRE herbicide fb glufosinate controlled PA 80%–99% 21 d after late-POST in 2018 …


Quantifying The Combined Effect Of Abiotic Factors On The Decomposition Of Organic Matter In Semiarid Grassland Soils, Elnazsadat Hosseiniaghdam Aug 2021

Quantifying The Combined Effect Of Abiotic Factors On The Decomposition Of Organic Matter In Semiarid Grassland Soils, Elnazsadat Hosseiniaghdam

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Grassland ecosystems play a critical role in the global carbon cycle, and their cumulative carbon dioxide (CO2) emissions can be affected by animal grazing where litter (i.e., dead plant material) is trampled into the soil. However, the subsequent effects of trampling on litter decomposition are not well understood. Meanwhile, abiotic factors, especially temperature and soil moisture, are known to strongly affect litter decomposition. Due to the very small number of published studies that have considered litter placement, either litter on top of soil or litter mixed with soil as a factor in litter decomposition under different temperature and …


The Battle Over Cattle: Livestock Management In A Changing Rural Landscape, Monique Salomon, Robert Fincham, Terry Everson Jul 2021

The Battle Over Cattle: Livestock Management In A Changing Rural Landscape, Monique Salomon, Robert Fincham, Terry Everson

IGC Proceedings (1977-2023)

No abstract provided.


Recent Innovations In Education‐Extension‐Research Networks Of Industrialised Agricultures, Mark Paine, Marianne Cerf Jul 2021

Recent Innovations In Education‐Extension‐Research Networks Of Industrialised Agricultures, Mark Paine, Marianne Cerf

IGC Proceedings (1977-2023)

No abstract provided.


Llama De Ayopaya: Towards Marketing Of High Quality Fine Fibre In The Bolivian Andes, M. Siegmund‐Schultze, J. Delgado, A. Stemmer, A. Markemann, A. Valle Zárate Jul 2021

Llama De Ayopaya: Towards Marketing Of High Quality Fine Fibre In The Bolivian Andes, M. Siegmund‐Schultze, J. Delgado, A. Stemmer, A. Markemann, A. Valle Zárate

IGC Proceedings (1977-2023)

No abstract provided.


Tropical Forages For Monogastric Animals: Enhancing Smallholders Competitiveness In Local And Emerging Markets, Michael Peters, D. White, L. S. Muñoz, P. Sarria, N. Vivas, F. Holmann, M. Lundy, T. Oberthur, P. Lentes, A. Schmidt, Martin Mena, S. Fujisaka Jul 2021

Tropical Forages For Monogastric Animals: Enhancing Smallholders Competitiveness In Local And Emerging Markets, Michael Peters, D. White, L. S. Muñoz, P. Sarria, N. Vivas, F. Holmann, M. Lundy, T. Oberthur, P. Lentes, A. Schmidt, Martin Mena, S. Fujisaka

IGC Proceedings (1977-2023)

No abstract provided.