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Agronomy and Crop Sciences Commons

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Articles 9781 - 9810 of 16391

Full-Text Articles in Agronomy and Crop Sciences

Soybean Maturity Group And Planting Date Influence Grain Yield And Nitrogen Dynamics, Carrie C. Ortel, Trenton L. Roberts, Kyle A. Hoegenauer, Larry C. Purcell, Nathan A. Slaton, Edward E. Gbur Jul 2020

Soybean Maturity Group And Planting Date Influence Grain Yield And Nitrogen Dynamics, Carrie C. Ortel, Trenton L. Roberts, Kyle A. Hoegenauer, Larry C. Purcell, Nathan A. Slaton, Edward E. Gbur

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Manipulation of soybean [Glycine max (L.) Merr.] maturity group (MG) and planting date will increase the yield of a soybean crop while simultaneously influencing the potential soil-nitrogen (N) credits. Variations in N returned to the soil by soybean can significantly affect the amount of fertilizer-N needed for the subsequent crop. Four soybean MGs (3.5, 4.7, 5.4, and 5.6) were evaluated at optimal and late planting dates in Arkansas. Grain yield was significantly different among MGs in 2016 (P = .0012) and 2017 (P = .0004), with the 4.7 MG consistently yielding the highest at 3,232 kg ha(-1). Plant total aboveground …


Performance Evaluation Of Four Arkansas Table Grape Cultivars Grown On Three Trellis Systems Under High Tunnels At Two Locations In Arkansas., Jose Hernandez Jul 2020

Performance Evaluation Of Four Arkansas Table Grape Cultivars Grown On Three Trellis Systems Under High Tunnels At Two Locations In Arkansas., Jose Hernandez

Graduate Theses and Dissertations

Grapevines (Vitis vinifera L.) are one of the most important horticultural crops world-wide. In the southern U.S. region, hot and humid climate accompanied by high pest pressure requires high levels of labor and pesticide inputs, making open field table grape production unsustainable. Previous research at University of Arkansas has demonstrated that table grape production under high tunnels (HTs) is a viable option to overcome biotic and abiotic challenges in the region. This project evaluated two HTs established in Arkansas. In the spring of 2014, at Fayetteville, three table grape cultivars (Faith, Gratitude, and Jupiter) were established in an 8 x …


Genetic Architecture Of Salt And Drought Tolerance In Cowpea, Waltram Second Ravelombola Jul 2020

Genetic Architecture Of Salt And Drought Tolerance In Cowpea, Waltram Second Ravelombola

Graduate Theses and Dissertations

Cowpea [Vigna unguiculata (L.) Walp.] is a diploid and nutrient-dense legume species. It provides affordable source of protein to human. Cowpea cultivation is prevalent in Africa, Asia, the western and southern U.S., and Central and South America. However, earlier reports have shown that drought and salt stress can be devastating to cowpea production. The objectives of this study were to screen for salt and drought tolerance in cowpea and to identify molecular markers associated with these traits. Simple methodologies to screen for drought (Chapter 2) and salt tolerance were developed (Chapter 3). Results suggested that: 1) a total of 14, …


Photosynthetic Activity And Yield Of Pegaga (Hydrocotyle Bonariensis) Grown Under Natural And Artificial Light, Narayanan Indiran Nair Jul 2020

Photosynthetic Activity And Yield Of Pegaga (Hydrocotyle Bonariensis) Grown Under Natural And Artificial Light, Narayanan Indiran Nair

Student Works (2020-2029)

Large leaf pennywort (Hydrocotyle bonariensis) also known as Pegaga in Malaysia, is an herb belonging to the family Araliaceae and commonly used as a culinary leafy vegetable and in preparation of traditional medicines to treat various symptoms of ophthalmic diseases and eczema. The plant is also used as an emetic, diuretic and laxative. With the increasing demand for H. bonariensis by the herbal industry, sourcing plant materials from natural habitats is no longer an economically viable or environmentally sustainable proposition. H. bonariensis is highly sensitive to direct sunlight exposure and water scarcity, which makes successful farming dependent on weather conditions …


Which Vegetation Sampling Approach Is More Efficient For A Rangeland Inventory?, Gh. Ghanbarian, M. Mesdaghi, H. Barani, M. Azimmohseni Jun 2020

Which Vegetation Sampling Approach Is More Efficient For A Rangeland Inventory?, Gh. Ghanbarian, M. Mesdaghi, H. Barani, M. Azimmohseni

IGC Proceedings (1977-2023)

No abstract provided.


Presentation Of Diversity, Life Forms And Chorology Of Plant Species In Rangelands Of Jahrom, Gh. Ghanbarian, E. Jafari, A. Hatami, M. Tayebi Khorrami Jun 2020

Presentation Of Diversity, Life Forms And Chorology Of Plant Species In Rangelands Of Jahrom, Gh. Ghanbarian, E. Jafari, A. Hatami, M. Tayebi Khorrami

IGC Proceedings (1977-2023)

No abstract provided.


Analysis Of C‐Banding And Karyotype Of Chromosome Of Two Galega Species, Hongwen Gao, Xinyu Zhang, Zan Wang Jun 2020

Analysis Of C‐Banding And Karyotype Of Chromosome Of Two Galega Species, Hongwen Gao, Xinyu Zhang, Zan Wang

IGC Proceedings (1977-2023)

No abstract provided.


Obstacles Of Determining Compensation In Grassland Ecological Values, Zhiyi Gai, Xiufang Gao Jun 2020

Obstacles Of Determining Compensation In Grassland Ecological Values, Zhiyi Gai, Xiufang Gao

IGC Proceedings (1977-2023)

No abstract provided.


Application Of Analytical Hierarchy Process (Ahp) In Priority Classification Of Utilization Measurement Methods In Agropyrun Trichophrum Stands In Upland Grasslands Of Iran, Fazel Amiri Jun 2020

Application Of Analytical Hierarchy Process (Ahp) In Priority Classification Of Utilization Measurement Methods In Agropyrun Trichophrum Stands In Upland Grasslands Of Iran, Fazel Amiri

IGC Proceedings (1977-2023)

No abstract provided.


Assessment Of Important Environmental Factors Affecting Agropyron Trichophrum Establishment By Using An Ordination Method, Fazel Amiri, M. R. Chaichi, T. Tabatabai Jun 2020

Assessment Of Important Environmental Factors Affecting Agropyron Trichophrum Establishment By Using An Ordination Method, Fazel Amiri, M. R. Chaichi, T. Tabatabai

IGC Proceedings (1977-2023)

No abstract provided.


Inter‐Annual Dynamics Of Grassland Yields And Assessment Of Herbage Supply In The Headwater Region Of Three Rivers Over 18 Years, Jiangwen Fan, Junbang Wang, Zhouqi Chen, Huaping Zhong, Quanqin Shao, Jiyuan Liu, Wenyan Zhang Jun 2020

Inter‐Annual Dynamics Of Grassland Yields And Assessment Of Herbage Supply In The Headwater Region Of Three Rivers Over 18 Years, Jiangwen Fan, Junbang Wang, Zhouqi Chen, Huaping Zhong, Quanqin Shao, Jiyuan Liu, Wenyan Zhang

IGC Proceedings (1977-2023)

No abstract provided.


Dynamics Of Leymus Chinensis And Hierochloe Glabrain Grassland Plantings Within The Songnen Plains Of China, Guangzhi Fan, Yunfei Yang Jun 2020

Dynamics Of Leymus Chinensis And Hierochloe Glabrain Grassland Plantings Within The Songnen Plains Of China, Guangzhi Fan, Yunfei Yang

IGC Proceedings (1977-2023)

No abstract provided.


Testing The Neutral Theory Of Plant Communities In Subalpine Meadow, Xiaoguang Du, Shurong Zhou Jun 2020

Testing The Neutral Theory Of Plant Communities In Subalpine Meadow, Xiaoguang Du, Shurong Zhou

IGC Proceedings (1977-2023)

No abstract provided.


Effects Of Grazing On Reproductive Characteristics Of Stipabreviflora In Desert Steppe, Lixia Du, Qingfeng Li Jun 2020

Effects Of Grazing On Reproductive Characteristics Of Stipabreviflora In Desert Steppe, Lixia Du, Qingfeng Li

IGC Proceedings (1977-2023)

No abstract provided.


Long‐Term Cattle Grazing Affected Specific Leaf Area And Its Components In Two Range Plant Species, Xuejun Dong, Paul Nyren, Bob Patton, Brian Kreft, Anne Nyren Jun 2020

Long‐Term Cattle Grazing Affected Specific Leaf Area And Its Components In Two Range Plant Species, Xuejun Dong, Paul Nyren, Bob Patton, Brian Kreft, Anne Nyren

IGC Proceedings (1977-2023)

No abstract provided.


Photosynthesis And Soil Respiration From A Mixed‐Grass Prairie: Effects Of Grazing And Drought, Xuejun Dong, Paul Nyren, Bob Patton, Guojie Wang, Brian Kreft, Anne Nyren, Ryan Limb, Don Kirby, Larry Cihacek Jun 2020

Photosynthesis And Soil Respiration From A Mixed‐Grass Prairie: Effects Of Grazing And Drought, Xuejun Dong, Paul Nyren, Bob Patton, Guojie Wang, Brian Kreft, Anne Nyren, Ryan Limb, Don Kirby, Larry Cihacek

IGC Proceedings (1977-2023)

No abstract provided.


Effect Of Salt Stress On The Tall Wheatgrass At The Stage Of Seedling, Kuanhu Dong, Yanqing Liu Jun 2020

Effect Of Salt Stress On The Tall Wheatgrass At The Stage Of Seedling, Kuanhu Dong, Yanqing Liu

IGC Proceedings (1977-2023)

No abstract provided.


Diachronic Analysis Of Vegetation In The Sylvopastoral Zone (Senegal): What Lesson To Learn From?, A. T. Diop, A. Diouf, A. Wane Jun 2020

Diachronic Analysis Of Vegetation In The Sylvopastoral Zone (Senegal): What Lesson To Learn From?, A. T. Diop, A. Diouf, A. Wane

IGC Proceedings (1977-2023)

No abstract provided.


The Effect Of Hay Covered On Soil Evaporation, Xiangxin Cui, Yong Gao, Xingyuan Zhang Jun 2020

The Effect Of Hay Covered On Soil Evaporation, Xiangxin Cui, Yong Gao, Xingyuan Zhang

IGC Proceedings (1977-2023)

No abstract provided.


Experimental Study On Stipa Bungeana Grassland Of Enclosed, Cutting And Grazing Succession For 26 Years Semi‐Arid Region Of Northwest, J. M. Cheng, L. P. Qiu, Q. Wang, J. Cheng, X. N. Jia Jun 2020

Experimental Study On Stipa Bungeana Grassland Of Enclosed, Cutting And Grazing Succession For 26 Years Semi‐Arid Region Of Northwest, J. M. Cheng, L. P. Qiu, Q. Wang, J. Cheng, X. N. Jia

IGC Proceedings (1977-2023)

No abstract provided.


Variation Of Pod Activity In Roots Of Different Fall Dormancy Alfalfa Under The Autumn Cutting, Libo Chen, Lei Liu, Zhiyong Li, Meizhen Wang Jun 2020

Variation Of Pod Activity In Roots Of Different Fall Dormancy Alfalfa Under The Autumn Cutting, Libo Chen, Lei Liu, Zhiyong Li, Meizhen Wang

IGC Proceedings (1977-2023)

No abstract provided.


Grazing Behaviors Of Goats And Sheep In Winter And Spring In A Desert Steppe, H. J. Chen, Mingjiu Wang, Y. M. Shan, Zh. Y. Wu, Zh. Q. Li Jun 2020

Grazing Behaviors Of Goats And Sheep In Winter And Spring In A Desert Steppe, H. J. Chen, Mingjiu Wang, Y. M. Shan, Zh. Y. Wu, Zh. Q. Li

IGC Proceedings (1977-2023)

No abstract provided.


Effects Of Different Enzyme Combination And Dissociation‐Time On The Protoplast Isolation Of Alfalfa, Aiping Chen, Yupeng Luo, Run Yan, Bo Zhang Jun 2020

Effects Of Different Enzyme Combination And Dissociation‐Time On The Protoplast Isolation Of Alfalfa, Aiping Chen, Yupeng Luo, Run Yan, Bo Zhang

IGC Proceedings (1977-2023)

No abstract provided.


Projected Surface Water For Fruit And Vegetable Irrigation Under A Changing Climate In The Us, Marty Matlock, Greg Thoma, Kieu Ngoc Le, Eric Cummings, Zach Morgan, Andrew Shaw Jun 2020

Projected Surface Water For Fruit And Vegetable Irrigation Under A Changing Climate In The Us, Marty Matlock, Greg Thoma, Kieu Ngoc Le, Eric Cummings, Zach Morgan, Andrew Shaw

Water Systems

Increasing greenhouse gas concentrations in the atmosphere, resulting in climate impacts, are raising concerns over the hydrologic cycle and its effects upon agricultural productivity. If rainfall patterns change, meeting an increased demand for fruits and vegetables will pose a challenge for domestic production regions in the United States (U.S.). Information on potential water supply scarcity in the current production regions provides decision makers with critical information for risk mitigation for future production. We used a hydrologic balance-based model of historic and future water availability to evaluate risk of available irrigation water to support major fruit and vegetable production the US. …


Analysis Of Photosynthetic Characteristics Of Heteropogon Contortusin Arid‐Hot Valley Areas Of Jinsha River, Yufen Bi, X. L. Ma, T. Sun Jun 2020

Analysis Of Photosynthetic Characteristics Of Heteropogon Contortusin Arid‐Hot Valley Areas Of Jinsha River, Yufen Bi, X. L. Ma, T. Sun

IGC Proceedings (1977-2023)

No abstract provided.


The Caloric Values Of Main Plant Species And Functional Groups In The Steppe Communities Of Xilin River Basin, Yajing Bao, Zhenghai Li Jun 2020

The Caloric Values Of Main Plant Species And Functional Groups In The Steppe Communities Of Xilin River Basin, Yajing Bao, Zhenghai Li

IGC Proceedings (1977-2023)

No abstract provided.


Plant Energy Functional Groups And Their Coupling Relationship With The Functional Degradation Of Steppe Ecosystem, Yajing Bao, Zhenghai Li, Xingguo Han Jun 2020

Plant Energy Functional Groups And Their Coupling Relationship With The Functional Degradation Of Steppe Ecosystem, Yajing Bao, Zhenghai Li, Xingguo Han

IGC Proceedings (1977-2023)

No abstract provided.


Profile Of Water Uptake In Winterfat During Seed Germination, Ruojing Wang, Yuguang Bai, Edward J. Kendall, Karen Tanino Jun 2020

Profile Of Water Uptake In Winterfat During Seed Germination, Ruojing Wang, Yuguang Bai, Edward J. Kendall, Karen Tanino

IGC Proceedings (1977-2023)

No abstract provided.


Adaptation Benefit Two Grass Coexisting In Meadow Steppe Of Northeast China, Lei Ba, Wei Xu, Deli Wang Jun 2020

Adaptation Benefit Two Grass Coexisting In Meadow Steppe Of Northeast China, Lei Ba, Wei Xu, Deli Wang

IGC Proceedings (1977-2023)

No abstract provided.


Soil Seed Bank Of Three Populations Of Capparis Decidua (Forssk.) Edgew, Abdulaziz M. Assaeed Jun 2020

Soil Seed Bank Of Three Populations Of Capparis Decidua (Forssk.) Edgew, Abdulaziz M. Assaeed

IGC Proceedings (1977-2023)

No abstract provided.