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Articles 7561 - 7590 of 10990
Full-Text Articles in Entire DC Network
Pratylenchus Smoliki, A New Nematode Species (Pratylenchidae: Tylenchomorpha) From The Great Plains Region Of North America, Thomas Powers, Timothy Todd, Tim Harris, Rebecca Higgins, Ann Macguidwin, Peter Mullin, Mehmet Ozbayrak, Kirsten Powers, Kanan Sakai
Pratylenchus Smoliki, A New Nematode Species (Pratylenchidae: Tylenchomorpha) From The Great Plains Region Of North America, Thomas Powers, Timothy Todd, Tim Harris, Rebecca Higgins, Ann Macguidwin, Peter Mullin, Mehmet Ozbayrak, Kirsten Powers, Kanan Sakai
Department of Plant Pathology: Faculty Publications
Pratylenchus smoliki is a new species of root-lesion nematode described from corn-soybean production fields in the Central Great Plains of North America. It is characterized by populations with relatively abundant males, two lip annuli, females with a round functional spermatheca and a conoid to subcylindrical tail with a non-crenate, smooth terminus. In host preference tests, corn and wheat produce the largest nematode populations, whereas sorghum and soybeans produce less than 20% the numbers observed on corn. Scanning electron microscopy reveals that the en face patterns compare to those seen in Pratylenchus pseudocoffeae, P. scribneri, P. hexincisus, and …
Assaying Bacillus Amyloliquefaciens Isolates 1ba And 1d3 For Biosurfactant Production And Utilization Of Petroleum Hydrocarbons And Phenolic Acids, Pavan Kulkarni
Electronic Theses and Dissertations
Several Bacillus amyloliquefaciens isolates obtained from wheat residue have been studied as biological agents to control wheat diseases. Notable traits of isolates 1BA and 1D3 include growth with high salt (10% NaCl), at temperatures up to 50°C and over a wide pH range. BIOLOG Gen III plates were used to study and further characterize Bacillus amyloliquefaciens 1BA and 1D3. Both isolates showed tolerance to high salt concentration supporting previous studies. They also grew in the presence of lithium chloride, potassium tellurite, and sodium bromate. Both isolates grew at pH 5, with almost identical carbon source utilization fingerprints. However, D-serine, quinic …
High Plains Wheat Mosaic Virus: An Enigmatic Disease Of Wheat And Corn Causing The High Plains Disease, Satyanarayana Tatineni, Gary Hein
High Plains Wheat Mosaic Virus: An Enigmatic Disease Of Wheat And Corn Causing The High Plains Disease, Satyanarayana Tatineni, Gary Hein
Department of Entomology: Faculty Publications
Brief history: In 1993, severe mosaic and necrosis symptoms were observed on corn (maize) and wheat from several Great Plains states of the USA. Based on the geographical location of infections, the disease was named High Plains disease and the causal agent was tentatively named High Plains virus. Subsequently, researchers renamed this virus as maize red stripe virus and wheat mosaic virus to represent the host and symptom phenotype of the virus. After sequencing the genome of the pathogen, the causal agent of High Plains disease was officially named as High Plains wheat mosaic virus. Hence, High Plains virus, …
Seeing Double With Cannabis: Heteroploid Populations In Bipolaris Gigantea, Causal Agent Of Bipolaris Leaf Spot, Desiree Szarka
Seeing Double With Cannabis: Heteroploid Populations In Bipolaris Gigantea, Causal Agent Of Bipolaris Leaf Spot, Desiree Szarka
Theses and Dissertations--Plant Pathology
Bipolaris leaf spot (BLS) disease emerged with the reintroduction of hemp as a crop in the United States following more than 60 years of prohibition. The causal agent was identified as Bipolaris gigantea (=Drechslera gigantea), a known minor pathogen of monocots which causes devastating disease on hemp. BLS has been confirmed throughout Kentucky and reported in 15 states. Morphology and growth characteristics of isolates from eight counties across Kentucky were similar with the exception of some isolates producing protoperithecial-like structures. Phylogenetic and whole genome analysis indicated that some isolates were haploid, containing a single allele at each gene …
Characteristics Of Cercospora Nicotianae With Reduced Sensitvity To Azoxystrobin, William Barrett Barlow
Characteristics Of Cercospora Nicotianae With Reduced Sensitvity To Azoxystrobin, William Barrett Barlow
Theses and Dissertations--Plant Pathology
Burley and dark tobacco production are important to agriculture in Kentucky, worth $145.1 and $94.4 million in 2020, respectively. The price received for a tobacco crop is influenced by leaf quality, determined by multiple characteristics including leaf damage. Frogeye leaf spot (FLS), caused by Cercospora nicotianae, has historically been a minor disease of tobacco. However, when FLS infections reach the upper canopy of tobacco, lesions are seen as damage that negatively influence leaf quality. Fungicides are regularly used to manage foliar diseases of tobacco, and the only systemic fungicide active ingredient labeled for tobacco is azoxystrobin. Azoxystrobin belongs to the …
Stop Helping Pathogens: Engineering Plant Susceptibility Genes For Durable Resistance, Hernan Garcia-Ruiz, Boris Szurek, Guido Van Den Ackerveken
Stop Helping Pathogens: Engineering Plant Susceptibility Genes For Durable Resistance, Hernan Garcia-Ruiz, Boris Szurek, Guido Van Den Ackerveken
Department of Plant Pathology: Faculty Publications
Alternatives to protect crops against diseases are desperately needed to secure world food production and make agriculture more sustainable. Genetic resistance to pathogens utilized so far is mostly based on single dominant resistance genes that mediate specific recognition of invaders and that is often rapidly broken by pathogen variants. Perturbation of plant susceptibility (S) genes offers an alternative providing plants with recessive resistance that is proposed to be more durable. S genes enable the establishment of plant disease, and their inactivation provides opportunities for resistance breeding of crops. However, loss of S gene function can have pleiotropic effects. Developments in …
Root And Crown Rot Pathogens Found On Dry Beans Grown In Mozambique, Suzana Vanessa Ismael Fernandes, G. Godoy-Lutz, Celestina Nhagupana Jochua, Carlos A. Urrea, Kent M. Eskridge, James R, Steadman, Joshua Herr
Root And Crown Rot Pathogens Found On Dry Beans Grown In Mozambique, Suzana Vanessa Ismael Fernandes, G. Godoy-Lutz, Celestina Nhagupana Jochua, Carlos A. Urrea, Kent M. Eskridge, James R, Steadman, Joshua Herr
Department of Plant Pathology: Faculty Publications
Dry edible beans are a vital food source in Mozambique, East Africa—one that alleviates hunger and malnutrition and adds value to the economy. In recent years, root/crown rot (RCR) pathogens have emerged as limiting constraints in dry bean production. Not much has been characterized concerning the causal agents of RCR in Mozambique. The purpose of this study was to identify the primary pathogen(s) associated with RCR dry bean samples collected at breeder nursery sites and farmer fields in Mozambique using molecular sequencing and culture-based methods. Sequencing revealed, not surprisingly, an increased diversity of fungal/oomycete operational taxonomic units when compared to …
Lichens And Biofilms: Common Collective Growth Imparts Similar Developmental Strategies, Erin C. Carr, Steven D. Harris, Joshua R. Herr, Wayne Riekhof
Lichens And Biofilms: Common Collective Growth Imparts Similar Developmental Strategies, Erin C. Carr, Steven D. Harris, Joshua R. Herr, Wayne Riekhof
Department of Plant Pathology: Faculty Publications
Lichens are traditionally defined as a symbiotic relationship between fungi and algae and/or cyanobacteria. This union forms a unique structure called the thallus, which attaches to surfaces such as rocks and tree bark. Recent reports challenge the view that lichens are comprised of one fungus and one photobiont, and instead suggest that they are a consortium of microbes. Much of lichen biology remains unknown as most of our knowledge of lichens is limited to morphological characteristics with little to no functional analysis of lichen genes. However, lichens and biofilms share many similar physiological traits which when compared may assist in …
White Pine Blister Rust Distribution In New Hampshire 1900-2018: Exploring The Impacts Of An Exotic Pathogen On Forest Composition And Succession, Janine Marr
Antioch University Dissertations & Theses
White pine blister rust (WPBR) has been affecting New Hampshire’s white pines for more than a century, yet no data exist on the long-term effects of the non-native disease on the state’s forests, particularly with respect to the regeneration and sustainability of white pine, and forest succession. This study aimed to address the gaps in the literature by exploring: 1) the current distribution, incidence, and severity of WPBR in New Hampshire; 2) the application of two historical hazard ratings models, one climatic, and one biotic; and 3) the long-term effects of the disease on forest composition, structure, and succession. Historical …
Strategic Trampling To Conserve Soil Moisture In A Namibian Rangeland, I. Zimmermann, J. Labuschagne, V. K. Namupala
Strategic Trampling To Conserve Soil Moisture In A Namibian Rangeland, I. Zimmermann, J. Labuschagne, V. K. Namupala
IGC Proceedings (1977-2023)
No abstract provided.
Lactation Performance Of Murrah‐Improved Dairy Buffalo Grazing On Improved Pasture, G. R. Yang, A. K. Wang, J. C. Zhang, M. F. Fu, B. Z. Huang, X. P. Yuan, S. P. Yang
Lactation Performance Of Murrah‐Improved Dairy Buffalo Grazing On Improved Pasture, G. R. Yang, A. K. Wang, J. C. Zhang, M. F. Fu, B. Z. Huang, X. P. Yuan, S. P. Yang
IGC Proceedings (1977-2023)
No abstract provided.
Prediction Of Methane Emission Of Dairy Cows Offered Fresh Grass At Maintenance Level, Tianhai Yan, C. S. Mayne
Prediction Of Methane Emission Of Dairy Cows Offered Fresh Grass At Maintenance Level, Tianhai Yan, C. S. Mayne
IGC Proceedings (1977-2023)
No abstract provided.
Fattening Sheep In A Warm Shed To Compensate For Energy Deficiency In Winter In North‐West China, Jianping Wu, Zhe Liu, Lian Yang, David L. Michalk, Liping Zhang, Randall Jones, Zhaomin Lei
Fattening Sheep In A Warm Shed To Compensate For Energy Deficiency In Winter In North‐West China, Jianping Wu, Zhe Liu, Lian Yang, David L. Michalk, Liping Zhang, Randall Jones, Zhaomin Lei
IGC Proceedings (1977-2023)
No abstract provided.
Response Of Arid Grassland Community Standing Crop To Banning Grazing And Deferral Grazing Management, Zhijun Wei, Ruirui Yan, Hongmei Liu, Xiangjun Yun
Response Of Arid Grassland Community Standing Crop To Banning Grazing And Deferral Grazing Management, Zhijun Wei, Ruirui Yan, Hongmei Liu, Xiangjun Yun
IGC Proceedings (1977-2023)
No abstract provided.
The Effect Of Climate Change On Livestock Carrying Capacity Of Inner Mongolia, Yurong Wei, Ruiqing Guo, Xuebiao Pan, Buju Long
The Effect Of Climate Change On Livestock Carrying Capacity Of Inner Mongolia, Yurong Wei, Ruiqing Guo, Xuebiao Pan, Buju Long
IGC Proceedings (1977-2023)
No abstract provided.
Relationships Of Milk Production Of Beef Cows To Postweaning Gain Of Their Calves, X. Z. Wang, Michael A. Brown, F. Q. Gao, J. P. Wu
Relationships Of Milk Production Of Beef Cows To Postweaning Gain Of Their Calves, X. Z. Wang, Michael A. Brown, F. Q. Gao, J. P. Wu
IGC Proceedings (1977-2023)
No abstract provided.
The Rangeland Resource Status And Its Variability In Zoige, Qinghai‐Tibetan Plateau, Qian Wang, Ning Wu, Peng Luo
The Rangeland Resource Status And Its Variability In Zoige, Qinghai‐Tibetan Plateau, Qian Wang, Ning Wu, Peng Luo
IGC Proceedings (1977-2023)
No abstract provided.
The Change Of Soil Temperature To Stocking Rate On The Stipa Breviflora Desert Steppe, Jian'an Wang, Guodong Han, Yajuan Jia
The Change Of Soil Temperature To Stocking Rate On The Stipa Breviflora Desert Steppe, Jian'an Wang, Guodong Han, Yajuan Jia
IGC Proceedings (1977-2023)
No abstract provided.
Rotational And Continuous Grazing Of Sheep In The Inner Mongolian Steppe Of China, C. J. Wang, B. M. Tas, T. Glindemann, K. Mueller, Anna Schiborra, P. Schoenbach, M. Gierus, Friedhelm Taube, A. Susenbeth
Rotational And Continuous Grazing Of Sheep In The Inner Mongolian Steppe Of China, C. J. Wang, B. M. Tas, T. Glindemann, K. Mueller, Anna Schiborra, P. Schoenbach, M. Gierus, Friedhelm Taube, A. Susenbeth
IGC Proceedings (1977-2023)
No abstract provided.
Rotational Grazing Effects Of Dairy Cows On Yield And Consumption In Dwarf Napiergrass At A Paddock Scale For 3 Years From The Establishment In Southern Kyushu, Japan, A. Wadi, Yasuyuki Ishii, H. Hasyim, R. F. Utamy, Sachiko Idota, Kiichi Fukuyama
Rotational Grazing Effects Of Dairy Cows On Yield And Consumption In Dwarf Napiergrass At A Paddock Scale For 3 Years From The Establishment In Southern Kyushu, Japan, A. Wadi, Yasuyuki Ishii, H. Hasyim, R. F. Utamy, Sachiko Idota, Kiichi Fukuyama
IGC Proceedings (1977-2023)
No abstract provided.
Prediction Of Diet Quality In Mongolian Livestock With Portable Near Infrared Spectroscopy Offeces, G. Tolleson, G. Udval, S. Prince, K. Banik
Prediction Of Diet Quality In Mongolian Livestock With Portable Near Infrared Spectroscopy Offeces, G. Tolleson, G. Udval, S. Prince, K. Banik
IGC Proceedings (1977-2023)
No abstract provided.
Evaluating Alternative Livestock Production Systems Sustainability And Farmer Income In Taipusi Banner, Inner Mongolia, Q. Tian, R. Jones, David L. Michalk, Geoff D. Millar, David R. Kemp, Z. Xu, J. Xie, Y. Zheng
Evaluating Alternative Livestock Production Systems Sustainability And Farmer Income In Taipusi Banner, Inner Mongolia, Q. Tian, R. Jones, David L. Michalk, Geoff D. Millar, David R. Kemp, Z. Xu, J. Xie, Y. Zheng
IGC Proceedings (1977-2023)
No abstract provided.
Effect Of Feed Restriction On Compensatory Growth And Body Dimensions In Ujumuqin Lambs, Jiayin Song, Daowei Zhou, Ping Wang
Effect Of Feed Restriction On Compensatory Growth And Body Dimensions In Ujumuqin Lambs, Jiayin Song, Daowei Zhou, Ping Wang
IGC Proceedings (1977-2023)
No abstract provided.
The Weight Variations Of Grazing Goats And Sheep In The Desert Steppe In Winter And Spring, Y. M. Shan, Mingjiu Wang, H. J. Chen, Zh. Y. Wu, Zh. Q. Li, X. L. Sun, Zh. Yang
The Weight Variations Of Grazing Goats And Sheep In The Desert Steppe In Winter And Spring, Y. M. Shan, Mingjiu Wang, H. J. Chen, Zh. Y. Wu, Zh. Q. Li, X. L. Sun, Zh. Yang
IGC Proceedings (1977-2023)
No abstract provided.
Pasture Management Reshaping Dairy Cows Grazing Behavior And Performance, A. Schmitt, W. Murphy
Pasture Management Reshaping Dairy Cows Grazing Behavior And Performance, A. Schmitt, W. Murphy
IGC Proceedings (1977-2023)
No abstract provided.
Home Range Size Of Free‐Roaming Beef Suckler Cattle In The Forest, Shusuke Sato, Yoshitaka Deguchi, Takeshi Yasue, Takami Kosako
Home Range Size Of Free‐Roaming Beef Suckler Cattle In The Forest, Shusuke Sato, Yoshitaka Deguchi, Takeshi Yasue, Takami Kosako
IGC Proceedings (1977-2023)
No abstract provided.
Evaluation Of Lamb Performance And Forage Quality In Rotational Grazing Systems, Yuping Rong, L. X. Zhao
Evaluation Of Lamb Performance And Forage Quality In Rotational Grazing Systems, Yuping Rong, L. X. Zhao
IGC Proceedings (1977-2023)
No abstract provided.
Lactating Grazing Dairy Cow Performance: Influence Of Chopped Fresh Maize Supplementation, M. Ramírez‐Mella, O. Hernández‐Mendo, R. Amendola‐Mashiotti, D. G. Mendoza‐Martinez, J. E. Ramirez‐Bibriesca
Lactating Grazing Dairy Cow Performance: Influence Of Chopped Fresh Maize Supplementation, M. Ramírez‐Mella, O. Hernández‐Mendo, R. Amendola‐Mashiotti, D. G. Mendoza‐Martinez, J. E. Ramirez‐Bibriesca
IGC Proceedings (1977-2023)
No abstract provided.
Seasonal Occurrence Of Bovine Mastitis Causing Organisms From Grazing Land Of Western Ghats, India, M. Mardhu Ramachandran, M. Andrew Pardeep, T. R. Prabha
Seasonal Occurrence Of Bovine Mastitis Causing Organisms From Grazing Land Of Western Ghats, India, M. Mardhu Ramachandran, M. Andrew Pardeep, T. R. Prabha
IGC Proceedings (1977-2023)
No abstract provided.
Evaluation Of Forages And Soils In Different Waterlogged Saline Grasslands In Western And Southern Coastal Region Of Sri Lanka, Sujatha Premaratne, G. G. C. Premalal
Evaluation Of Forages And Soils In Different Waterlogged Saline Grasslands In Western And Southern Coastal Region Of Sri Lanka, Sujatha Premaratne, G. G. C. Premalal
IGC Proceedings (1977-2023)
No abstract provided.