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Long-Term Changes In Soil Surface Properties As Affected By Management Practices In A Wheat-Soybean, Double-Crop System, Machaela Morrison 2021 University of Arkansas, Fayetteville

Long-Term Changes In Soil Surface Properties As Affected By Management Practices In A Wheat-Soybean, Double-Crop System, Machaela Morrison

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

Long-term agricultural sustainability and productivity are controlled by the integrative effects of different management practices on the soil. Many Arkansas producers use the double-crop system to grow soybeans [Glycine max (L.) Merr] and wheat (Triticum aestivum L.). Studying combinations of different, non-traditional, alternative agricultural techniques may help producers better understand the long-term implications of various management practice options on sustainability and productivity. The objective of this study was to evaluate the effects of agricultural management practices, including residue level, tillage, irrigation, and burning, and soil depth on the change in various soil properties from 2010 to 2020 in a long-term ...


Interactive Effects Of Soil And Browsing On Big Sagebrush: Implications For Restoration Success, Kyle Nehring 2021 Utah State University

Interactive Effects Of Soil And Browsing On Big Sagebrush: Implications For Restoration Success, Kyle Nehring

All Graduate Plan B and other Reports

Heterogeneity in landscape conditions (e.g., soil types) precludes a “one size fits all” management strategy across large landscapes. New management approaches that explicitly account for heterogeneous landscapes (and the variable conditions therein) will be required to maintain habitat quality. In particular, we require an improved mechanistic understanding of how the outcomes of conservation and restoration actions are contingent upon a) contextual abiotic factors (e.g., moisture availability mediated by soils and precipitation) and b) their interactions with biotic factors (e.g., browsing wildlife).

We propose to answer fundamental questions about how big sagebrush (Artemisia tridentata), the foundational species for ...


Mechanisms Of Overyielding And Coexistence In Diverse Tallgrass Prairie Communities, Leslie E. Forero 2021 Utah State University

Mechanisms Of Overyielding And Coexistence In Diverse Tallgrass Prairie Communities, Leslie E. Forero

All Graduate Theses and Dissertations

Plants compete for the same basic nutrient and water resources. According to the competitive exclusion principle, when a substantial overlap in resource pools exists, the best competitor for resources should drive all other species to extinction. The ability for plants to coexist in violation of the competitive exclusion principle is the “biodiversity paradox”. Coexistence is actually beneficial for plants: as species diversity increases, you typically see increases in plant biomass production (known as the biodiversity-productivity relationship). The mechanisms behind coexistence and the biodiversity-productivity relationship remain an ecological mystery. One hypothesis is that plants obtain water and nutrients from different places ...


Fatty Acid Composition Of Forages And Their Effect On The Fatty Acid Composition In Beef Cattle, Britney G. Allen 2021 Utah State University

Fatty Acid Composition Of Forages And Their Effect On The Fatty Acid Composition In Beef Cattle, Britney G. Allen

All Graduate Theses and Dissertations

This study focused on how diet changes the rumen microbiome in the cattle and the effects of that on the long chain fatty acids (LCFA) by microbes in the rumen, and on the short chain fatty acids (SCFA) these microbes produce from feed carbohydrates like fiber and starch. The abundance of bacteria belonging to the phyla Tenericutes and Proteobacteria increased in response to high-fiber or high-starch diets, respectively. The production of two SCFA was positively correlated with the presence of increased Tenericutes (acetate) and Proteobacteria (propionate). A greater acetate to propionate ratio is associated with elevated production of enteric methane ...


Seed Rain And Viable Soil Seed Bank Of 'Black Soil Land' Degraded Alpine Meadow In Qinghai‐Tibetan Plateau, Zhanhuan Shang, Yushou Ma, Ruijun Long 2021 Lanzhou University, China

Seed Rain And Viable Soil Seed Bank Of 'Black Soil Land' Degraded Alpine Meadow In Qinghai‐Tibetan Plateau, Zhanhuan Shang, Yushou Ma, Ruijun Long

International Grassland Congress Proceedings

No abstract provided.


Effects Of Sowing Methods And Seeding Rates On Chemical Composition Of Tephrosia Bracteolata, Olufemi S. Onifade, T. A. Amole, Alaba O. Jolaosho, O. M. Arigbede, Jimoh A. Olanite, U. Y. Anele, A. M. Oyeladun 2021 Federal University of Agriculture, Abeokuta, Nigeria

Effects Of Sowing Methods And Seeding Rates On Chemical Composition Of Tephrosia Bracteolata, Olufemi S. Onifade, T. A. Amole, Alaba O. Jolaosho, O. M. Arigbede, Jimoh A. Olanite, U. Y. Anele, A. M. Oyeladun

International Grassland Congress Proceedings

No abstract provided.


The Ear Motif In The Arabidopsis Mads Transcription Factor Agamous-Like 15 Is Not Necessary To Promote Somatic Embryogenesis, Sanjay Joshi, Christian Keller, Sharyn E. Perry 2021 University of Kentucky

The Ear Motif In The Arabidopsis Mads Transcription Factor Agamous-Like 15 Is Not Necessary To Promote Somatic Embryogenesis, Sanjay Joshi, Christian Keller, Sharyn E. Perry

Plant and Soil Sciences Faculty Publications

AGAMOUS-like 15 (AGL15) is a member of the MADS domain family of transcription factors (TFs) that can directly induce and repress target gene expression, and for which promotion of somatic embryogenesis (SE) is positively correlated with accumulation. An ethylene-responsive element binding factor-associated amphiphilic repression (EAR) motif of form LxLxL within the carboxyl-terminal domain of AGL15 was shown to be involved in repression of gene expression. Here, we examine whether AGL15′s ability to repress gene expression is needed to promote SE. While a form of AGL15 where the LxLxL is changed to AxAxA can still promote SE, another form with ...


Pyrrolizidine Alkaloid Content And Seed Toxicity In Crotalaria Species, J. A. Mosjidis, I. Khan, J. Hess 2021 Auburn University

Pyrrolizidine Alkaloid Content And Seed Toxicity In Crotalaria Species, J. A. Mosjidis, I. Khan, J. Hess

International Grassland Congress Proceedings

No abstract provided.


Fertilizer Management For Seed Production Of Perennial Forage Crops In The Canadian Great Plains, S. S. Malhi, C. L. Vera 2021 Agriculture and Agri‐Food Canada, Canada

Fertilizer Management For Seed Production Of Perennial Forage Crops In The Canadian Great Plains, S. S. Malhi, C. L. Vera

International Grassland Congress Proceedings

No abstract provided.


B10: Controlling Saltwater Intrusion: Aiding The Recovery Of Freshwater Ecosystems, Willem Maniago, Stefanie Whitmire, Dan Hitchcock 2021 Faith Lutheran High School STEM Academy

B10: Controlling Saltwater Intrusion: Aiding The Recovery Of Freshwater Ecosystems, Willem Maniago, Stefanie Whitmire, Dan Hitchcock

Annual Research Symposium

As sea levels rise, it is imperative to understand the effects of saltwater intrusion on freshwater ecosystems. This is especially true in the coastal wetlands of the SE US, where freshwater forests are dying from exposure to salinity. One management strategy that could prevent salinity intrusion in surface waters are water control structures (WCS). The Great Reserve, located outside of Georgetown, SC, represents a biodiverse freshwater forested wetland affected by saltwater intrusion from the adjacent tidal Black River. Several years ago, scientists and landowners observed the degradation of the ecosystem. The owners of the property installed a WCS at the ...


Prediction Of Reproductive Initiation From Relative Ear Emergence Timing In Lolium Perenne L. Varieties, G. Hurley, M. O. Donovan, Trevor J. Gilliland 2021 Teagasc, Ireland

Prediction Of Reproductive Initiation From Relative Ear Emergence Timing In Lolium Perenne L. Varieties, G. Hurley, M. O. Donovan, Trevor J. Gilliland

International Grassland Congress Proceedings

No abstract provided.


Effect Of Boron Fertilization On Seed Yield Of White Clover, Piotr Goliński, S. Kozłowski, Barbara Golińska 2021 Agricultural University of Poznań, Poland

Effect Of Boron Fertilization On Seed Yield Of White Clover, Piotr Goliński, S. Kozłowski, Barbara Golińska

International Grassland Congress Proceedings

No abstract provided.


Effect Of Growth Regulators Application On Seed Yield Of Festulolium Braunii, Piotr Goliński, A. Rzeźnik, Barbara Golińska 2021 Agricultural University of Poznań, Poland

Effect Of Growth Regulators Application On Seed Yield Of Festulolium Braunii, Piotr Goliński, A. Rzeźnik, Barbara Golińska

International Grassland Congress Proceedings

No abstract provided.


Correlation Analyses Of Seed Yield And Its Components In Bermudagrass, Yanqi Wu, C. M. Taliaferro, D. L. Martin, J. A. Anderson, M. P. Anderson 2021 Oklahoma State University

Correlation Analyses Of Seed Yield And Its Components In Bermudagrass, Yanqi Wu, C. M. Taliaferro, D. L. Martin, J. A. Anderson, M. P. Anderson

International Grassland Congress Proceedings

No abstract provided.


Effects Of Selection For Seed Size On Grazing‐Type Population Of An Inter‐Specific Hybrid (Pennisetum Purpureum × P. Glaucum), R. Usberti, J. A. Usberti Jr., P. B. Alcantara, A. T. Tsuhako 2021 Plant Protection Agency, Brazil

Effects Of Selection For Seed Size On Grazing‐Type Population Of An Inter‐Specific Hybrid (Pennisetum Purpureum × P. Glaucum), R. Usberti, J. A. Usberti Jr., P. B. Alcantara, A. T. Tsuhako

International Grassland Congress Proceedings

No abstract provided.


Scalded? Try This! Waterponding, Ray F. Thompson 2021 Bogan‐Central West Catchment Management Authority, Australia

Scalded? Try This! Waterponding, Ray F. Thompson

International Grassland Congress Proceedings

No abstract provided.


Establishment And Optimization Of The Issr‐Pcr Reaction System In Stipa Krylovii, Xiaoqing Sui, Kun Wang, Shuhua Zheng, Li Lin 2021 China Agricultural University, China

Establishment And Optimization Of The Issr‐Pcr Reaction System In Stipa Krylovii, Xiaoqing Sui, Kun Wang, Shuhua Zheng, Li Lin

International Grassland Congress Proceedings

No abstract provided.


Classification And Genetic Diversity Of Spike‐Drooping Germplasm Of Elymus From Different Ecoregions In China, J. Qi, H. S. Lu, H. Q. Wang, Zhu Xu 2021 Gansu Agricultural University, China

Classification And Genetic Diversity Of Spike‐Drooping Germplasm Of Elymus From Different Ecoregions In China, J. Qi, H. S. Lu, H. Q. Wang, Zhu Xu

International Grassland Congress Proceedings

No abstract provided.


Organization, Integration And Shared Utilization Of Forage Germplasm Resources, Wengui Shi, Zhiyong Li, Hongyan Li, Xingyou Li 2021 Chinese Academy of Agricultural Sciences, China

Organization, Integration And Shared Utilization Of Forage Germplasm Resources, Wengui Shi, Zhiyong Li, Hongyan Li, Xingyou Li

International Grassland Congress Proceedings

No abstract provided.


Physio‐Ecological Responses Of Different Elymus Dahuricus And Elymus Sibiricus To Soil Drought Stress, J. Qi, H. Wang, Zhu Xu 2021 Gansu Agricultural University, China

Physio‐Ecological Responses Of Different Elymus Dahuricus And Elymus Sibiricus To Soil Drought Stress, J. Qi, H. Wang, Zhu Xu

International Grassland Congress Proceedings

No abstract provided.


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