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Agronomy and Crop Sciences

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Articles 2221 - 2250 of 4161

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Forage‐Based Beef Cattle Production In Red Soils Region Of Southern China, Y. Y. He, Guoqing Xie, Q. H. Shi, S. L. Wen, J. R. Liu, Z. Y. Wu, M. G. Xu, W. J. Zhang, H. X. Li Dec 2020

Forage‐Based Beef Cattle Production In Red Soils Region Of Southern China, Y. Y. He, Guoqing Xie, Q. H. Shi, S. L. Wen, J. R. Liu, Z. Y. Wu, M. G. Xu, W. J. Zhang, H. X. Li

IGC Proceedings (1977-2023)

No abstract provided.


Effect Of Potato Pulp Silage On Urea Nitrogen Content In Serum And Fecal Nitrogen Excretion By Lactating Cows Grazed On Artificial Temperate Pasture, Masaaki Hanada, Hiroyuki Sasada, Kazutaka Hamabe, Masahito Kawai, Meiji Okamoto Dec 2020

Effect Of Potato Pulp Silage On Urea Nitrogen Content In Serum And Fecal Nitrogen Excretion By Lactating Cows Grazed On Artificial Temperate Pasture, Masaaki Hanada, Hiroyuki Sasada, Kazutaka Hamabe, Masahito Kawai, Meiji Okamoto

IGC Proceedings (1977-2023)

No abstract provided.


Goat Products, Breeding Objectives And Flock Structure On The Tibetan Plateau, Xusheng Guo, Ruijun Long, Luming Ding, Wolfgang Bayer Dec 2020

Goat Products, Breeding Objectives And Flock Structure On The Tibetan Plateau, Xusheng Guo, Ruijun Long, Luming Ding, Wolfgang Bayer

IGC Proceedings (1977-2023)

No abstract provided.


Anthelmintic Property Of Fresh Cassava (Manihot Esculenta) Leaves Incorporated In The Diet Of West African Dwarf Goats, E. Tedonkeng Pamo, J. Awah-Ndukum, B. Boukila, F. Tendonkeng, F. Matumuini Ndzanie Essie Dec 2020

Anthelmintic Property Of Fresh Cassava (Manihot Esculenta) Leaves Incorporated In The Diet Of West African Dwarf Goats, E. Tedonkeng Pamo, J. Awah-Ndukum, B. Boukila, F. Tendonkeng, F. Matumuini Ndzanie Essie

IGC Proceedings (1977-2023)

No abstract provided.


Appropriate Stocking Rate Of Yak On Alpine Pastures In The Three Rivers Headwater Region Of The Qinghai‐Tibetan Plateau, M. Dong, X. Q. Zhao, Y. S. Ma, Julia A. Klein, J. J. Shi, Y. L. Wang, L. Sheng, S. H. Yang, X. D. Sun Dec 2020

Appropriate Stocking Rate Of Yak On Alpine Pastures In The Three Rivers Headwater Region Of The Qinghai‐Tibetan Plateau, M. Dong, X. Q. Zhao, Y. S. Ma, Julia A. Klein, J. J. Shi, Y. L. Wang, L. Sheng, S. H. Yang, X. D. Sun

IGC Proceedings (1977-2023)

No abstract provided.


The Utilization Of Stored Soil Moistures For Forage Legumes Supply In The Dry Season In West Timor, Indonesia, Esnawan Budisantoso, Neal Dalgliesh, P. Th. Fernandez, T. Basuki, E. Hosang, D. Kana Hau, Jacob Nulik Dec 2020

The Utilization Of Stored Soil Moistures For Forage Legumes Supply In The Dry Season In West Timor, Indonesia, Esnawan Budisantoso, Neal Dalgliesh, P. Th. Fernandez, T. Basuki, E. Hosang, D. Kana Hau, Jacob Nulik

IGC Proceedings (1977-2023)

No abstract provided.


The Use Of Concentrate Supplements To Overcome Seasonal Shortages Of Grazed Herbage In Beef Production Systems, Valéria P. B. Euclides, Kepler Euclides Filho, Fernando Paim Costa, Alexandre Scaff Raffia Dec 2020

The Use Of Concentrate Supplements To Overcome Seasonal Shortages Of Grazed Herbage In Beef Production Systems, Valéria P. B. Euclides, Kepler Euclides Filho, Fernando Paim Costa, Alexandre Scaff Raffia

IGC Proceedings (1977-2023)

No abstract provided.


Effects Of Novel Ryegrass Endophytes On Pasture Production And Milk Production From Dairy Cows In Northern New Zealand, Errol R. Thom, C. D. Waugh, E. M. K. Minneé, G. C. Waghorn, Alison J. Popay Dec 2020

Effects Of Novel Ryegrass Endophytes On Pasture Production And Milk Production From Dairy Cows In Northern New Zealand, Errol R. Thom, C. D. Waugh, E. M. K. Minneé, G. C. Waghorn, Alison J. Popay

IGC Proceedings (1977-2023)

No abstract provided.


Forage Mass, Carrying Capacity And Daily Weight Gain Of Crossbred Heifers In Silvopastoral System Or Exclusive Signalgrass Pasture, Domingos S. C. Paciullo, L. J. M. Aroeira, M. J. Alvim, F. J. N. Costa Dec 2020

Forage Mass, Carrying Capacity And Daily Weight Gain Of Crossbred Heifers In Silvopastoral System Or Exclusive Signalgrass Pasture, Domingos S. C. Paciullo, L. J. M. Aroeira, M. J. Alvim, F. J. N. Costa

IGC Proceedings (1977-2023)

No abstract provided.


Utilisation Of Near Infrared Spectroscopy To Optimise Productivity Of Grazing Animals In The Western Australian Rangelands, Peter Mccafferty, Gaye Krebs, Kevin Ho, Ken Dods, Kumara Mahipala Dec 2020

Utilisation Of Near Infrared Spectroscopy To Optimise Productivity Of Grazing Animals In The Western Australian Rangelands, Peter Mccafferty, Gaye Krebs, Kevin Ho, Ken Dods, Kumara Mahipala

IGC Proceedings (1977-2023)

No abstract provided.


Intake And Apparent Digestibility Of Silages Obtained From Four Sunflower (Helianthus Annuus) Genotypes, Rogerio M. Mauricio, N. M. Rodriguez, L. C. Gonçalves, D. G. Jayme, J. A. S. Rodrigues, L. F. Sousa, W. G. Faria, G. O. Ribeiro Dec 2020

Intake And Apparent Digestibility Of Silages Obtained From Four Sunflower (Helianthus Annuus) Genotypes, Rogerio M. Mauricio, N. M. Rodriguez, L. C. Gonçalves, D. G. Jayme, J. A. S. Rodrigues, L. F. Sousa, W. G. Faria, G. O. Ribeiro

IGC Proceedings (1977-2023)

No abstract provided.


Effect Of Defoliation Frequency And Severity During Winter On Herbage Regrowth And Water‐Soluble Carbohydrate Content Of Perennial Ryegrass (Lolium Perenne L.) Dominant Swards, Julia M. Lee, D. J. Donaghy, P. Sathish, J. R. Roche Dec 2020

Effect Of Defoliation Frequency And Severity During Winter On Herbage Regrowth And Water‐Soluble Carbohydrate Content Of Perennial Ryegrass (Lolium Perenne L.) Dominant Swards, Julia M. Lee, D. J. Donaghy, P. Sathish, J. R. Roche

IGC Proceedings (1977-2023)

No abstract provided.


Evaluation Of The Productivity And Grazing Capacity Of Cool Season Grasses, H. A. Lardner, C. Ward, L. Froehlich, L. Zemlak Dec 2020

Evaluation Of The Productivity And Grazing Capacity Of Cool Season Grasses, H. A. Lardner, C. Ward, L. Froehlich, L. Zemlak

IGC Proceedings (1977-2023)

No abstract provided.


Comparison Of Ewe Lamb Growth On Herb Based And Ryegrass Based Pastures, K. P. Golding, Paul R. Kenyon, Stephen T. Morris, Peter D. Kemp Dec 2020

Comparison Of Ewe Lamb Growth On Herb Based And Ryegrass Based Pastures, K. P. Golding, Paul R. Kenyon, Stephen T. Morris, Peter D. Kemp

IGC Proceedings (1977-2023)

No abstract provided.


Nutritional Parameters Of Grazing Calves In Milking Phase 2: Protein Metabolism, H. J. Fernandes, A. A. Rocha, J. Cavali, A. G. Silva, M. F. Paulino, L. M. Paiva, M. O. Porto, J. C. De Souza Dec 2020

Nutritional Parameters Of Grazing Calves In Milking Phase 2: Protein Metabolism, H. J. Fernandes, A. A. Rocha, J. Cavali, A. G. Silva, M. F. Paulino, L. M. Paiva, M. O. Porto, J. C. De Souza

IGC Proceedings (1977-2023)

No abstract provided.


Nutritional Parameters Of Grazing Nursing Calves 1: Rumen Microbial Production, H. J. Fernandes, J. Cavali, A. G. Silva, M. F. Paulino, A. A. Rocha, M. O. Porto, L. M. Paiva Dec 2020

Nutritional Parameters Of Grazing Nursing Calves 1: Rumen Microbial Production, H. J. Fernandes, J. Cavali, A. G. Silva, M. F. Paulino, A. A. Rocha, M. O. Porto, L. M. Paiva

IGC Proceedings (1977-2023)

No abstract provided.


Genomic Selection Of Forage Agronomic Traits In Winter Wheat, Frank Maulana, Ki-Seung Kim, Joshua D. Anderson, Mark E. Sorrells, Twain J. Butler, Shuyu Liu, P. Stephen Baenziger, Patrick Byrne, Xue-Feng Ma Dec 2020

Genomic Selection Of Forage Agronomic Traits In Winter Wheat, Frank Maulana, Ki-Seung Kim, Joshua D. Anderson, Mark E. Sorrells, Twain J. Butler, Shuyu Liu, P. Stephen Baenziger, Patrick Byrne, Xue-Feng Ma

Department of Agronomy and Horticulture: Faculty Publications

Genomic selection (GS) can improve genetic gain of complex traits in plant breeding. Phenotyping agronomic traits of winter wheat (Triticum aestivum L.) for dualpurpose use is expensive and time-consuming. In this study, we compared the prediction accuracies of four GS models (RR-BLUP, GBLUP, GAUSS, and BL) for forage yield (FY), plant height (PH) and heading date (HD) of the hard winter wheat diversity panel (n = 298) using random and stratified sampling methods. In addition, we determined the appropriate training population (TP) size and marker density for GS of the traits. Moderate to high prediction accuracies ranging from 0.66 …


Evaluating The Impact Of Grafting On Local Tomato Production In Nebraska, Raihanah Hassim Dec 2020

Evaluating The Impact Of Grafting On Local Tomato Production In Nebraska, Raihanah Hassim

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

Vegetable grafting has been known to improve plant production under both biotic and abiotic stresses. With an increase in interest among local growers towards grafting production, it is important to provide enough vegetable grafting information. Therefore, the objective of this study is to assess the impact of grafting, rootstock cultivar, and local conditions and management on the yield and quality of tomato across the diverse growing and environmental conditions, specifically in Nebraska. Three open-field and one limited growing condition study were conducted between 2018 and 2019 across Nebraska. In the open-field trial, two determinant fresh market tomatoes, ‘Nebraska Wedding’ and …


Impacts Of Postharvest Temperature Exposure Profiles On Rice Physicochemical Properties, Seth Graham-Acquaah Dec 2020

Impacts Of Postharvest Temperature Exposure Profiles On Rice Physicochemical Properties, Seth Graham-Acquaah

Graduate Theses and Dissertations

Heated-air drying followed by tempering (HAT) is effective for increasing rough-rice drying rates without compromising head rice yield (HRY). However, heat exposure could affect rice end-use properties. Hypothesizing that the total amount of heat exposure incurred by rice during heated-air drying determines the trend and magnitude of changes in end-use properties, this dissertation sought to 1) characterize the effects of drying and tempering regimen on changes in end-use properties, 2) derive an index to quantify and compare the amount of heat exposure that rice kernels incur during active drying and, 3) relate values of this index to changes in rice …


Application Of X-Ray Imaging And Glass Transition Principles In Understanding Rice Kernel Fissure Formation, Zephania R. Odek Dec 2020

Application Of X-Ray Imaging And Glass Transition Principles In Understanding Rice Kernel Fissure Formation, Zephania R. Odek

Graduate Theses and Dissertations

Rice kernels with internal fractures of the endosperm, fissures, tend to break during milling, leading to head rice yield (HRY) reductions. Minimizing kernel fissuring is thus an important goal of the rice industry. To minimize fissuring during the drying process, a better understanding of the fissuring process and the kinetics thereof is required. The goal of this research was to use X-ray imaging and glass transition principles to better understand rough rice kernel fissuring. First, because the instance when the fissuring process is initiated and completed during the drying process is not well known, an X-ray imaging setup that allows …


Molecular Genetic Analysis Of Drought Resistance And Productivity Traits Of Rice Genotypes, Yheni Dwiningsih Dec 2020

Molecular Genetic Analysis Of Drought Resistance And Productivity Traits Of Rice Genotypes, Yheni Dwiningsih

Graduate Theses and Dissertations

Rice (Oryza sativa L.) is the staple food for a majority of the world’s population, and uses 30% of the global fresh water during its life cycle. Drought at the reproductive stage is the most important abiotic stress factor limiting grain yield. The United States is the third largest exporter of rice, and Arkansas is the top rice-producing state. The Arkansas rice-growing region in the Lower Mississippi belt is among the 10 areas with the highest risk of water scarcity. Adapted U.S. rice cultivars were screened for drought resistant (DR) traits to find sources for breeding U.S. rice cultivars for …


Association Mapping For Soybean (Glycine Max L. Merr.) Protein And Oil Content, Joseph Najjar Dec 2020

Association Mapping For Soybean (Glycine Max L. Merr.) Protein And Oil Content, Joseph Najjar

Graduate Theses and Dissertations

Soybean [Glycine Max (L.) Merrill] is an important economic crop because of its high content of seed protein and oil. Seed oil and protein content are quantitative inherited traits. The genetics of seed protein and oil levels have been extensively studied, with 367 QTL reported for protein and 475 QTL reported for oil to date. Validation of such QTLs, and identification of easily-automatable molecular markers around these QTL will aid the progression of breeding for such traits. The focus of this research was to discover novel and verify previously reported QTL related to protein and/or oil content via Genome-Wide Association …


Assessment Of Grain Safety In Developing Nations, Jose R. Mendoza Dec 2020

Assessment Of Grain Safety In Developing Nations, Jose R. Mendoza

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Grains are the most widely consumed foods worldwide, with maize (Zea mays) being frequently consumed in developing countries where it feeds approximately 900 million people under the poverty line of 2 USD per day. While grain handling practices are acceptable in most developed nations, many developing nations still face challenges such as inadequate field management, drying, and storage. Faulty grain handling along with unavoidably humid climates result in recurrent fungal growth and spoilage, which compromises both the end-quality and safety of the harvest. This becomes particularly problematic where there is little awareness about health risks associated with poor …


Optimization Of In-Vessel Food Waste Composting: Enzyme Activity And Microbial Dynamics, Ayawovi Selom Ametepe Dec 2020

Optimization Of In-Vessel Food Waste Composting: Enzyme Activity And Microbial Dynamics, Ayawovi Selom Ametepe

Graduate Theses and Dissertations

A series of greenhouse-based, rotary-drum bioreactor experiments was designed to study microbial dynamics and enzyme activity during optimization of food waste composting. This work aims to optimize food waste composting by defining the best food waste-to-bulking agent proportion controlling conditions and by evaluating the food waste composting process when inoculated by a bacterial inoculant product compared to uninoculated compost. Three experiments were run in total. The two first experiments were conducted for 48 days with sampling at each step of composting, while the third experiment last 50 days and included one extra sampling date. In the first experiment, 50:50, 65:35 …


Soil Health, Phosphorus And Carbon Dynamics In Response To A One-Time Compost Application And Cover Crops In Organic Dryland Winter Wheat, Idowu Ademola Atoloye Dec 2020

Soil Health, Phosphorus And Carbon Dynamics In Response To A One-Time Compost Application And Cover Crops In Organic Dryland Winter Wheat, Idowu Ademola Atoloye

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Organic dryland winter wheat (Triticum aestivum) growers in the U.S. are faced with high interannual variability in yields. This is related to the low annual precipitation and low soil fertility on the cultivated soils. Improving soil health is the key to increasing and maintaining crop yields. In this study, we compared the effects of different rates (0, 12.5, 25 and 50 Mg DW ha-1 compost and 2 Mg ha manure-1) of large quantities of steer manure compost and the inclusion of cover crops versus fallow on soil health and on carbon and phosphorus dynamics in …


Characterization Of Genetic Sources Associated With Restorability And Seed Dimension In Arkansas Restorer Rice Lines, Ozgur Azapoglu Dec 2020

Characterization Of Genetic Sources Associated With Restorability And Seed Dimension In Arkansas Restorer Rice Lines, Ozgur Azapoglu

Graduate Theses and Dissertations

Hybrid rice (Oryza sativa L.) breeding offers a significant opportunity to enhance rice production, and the cultivation of a male sterile line is the most important factor in the success of cross-breeding. One of the key elements of hybrid rice production is to develop a restorer line that is assigned as the male parent. The restorer lines provide viable pollen for fertilization of the male sterile plant due to the presence of a restorer gene (Rf) in their genomes. Any superior restorer line applied to hybrid rice production must contain genes/quantitative trait loci (QTL) associated with the desirable agronomic traits …


Can Soil Phosphorus Sorption Saturation Estimate Future Potential Legacy Phosphorus Sources?, A. N. Sharpley, K. R. Brye, J. M. Burke, L G. Berry, M. B. Daniels, P. Webb Dec 2020

Can Soil Phosphorus Sorption Saturation Estimate Future Potential Legacy Phosphorus Sources?, A. N. Sharpley, K. R. Brye, J. M. Burke, L G. Berry, M. B. Daniels, P. Webb

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Various soil extraction methods are used to indicate plant available P in soil but do not account for soil specific sorption of subsequent applications of P. Thus, estimates of soil phosphorus sorption saturation (PSS; estimated from Mehlich-3 extractable P, Al, and Fe) have been used in conjunction with Mehlich-3 extractable soil phosphorus (M3P) to overcome these limitations. As less is known about the effect of land management on PSS than M3P under field conditions, the effect of field management on PSS was investigated for three pastures over 5 yr (2014-2018). Swine slurry was applied to two fields (Field 1 received …


Milk Intake Improves Outcomes For Young Lambs With Continuous Exposure To Gastrointestinal Parasites In Pasture‐Based System, Robyn A. Dynes, Ray A. Moss, R. W. Mcanulty, Alec D. Mackay Nov 2020

Milk Intake Improves Outcomes For Young Lambs With Continuous Exposure To Gastrointestinal Parasites In Pasture‐Based System, Robyn A. Dynes, Ray A. Moss, R. W. Mcanulty, Alec D. Mackay

IGC Proceedings (1977-2023)

No abstract provided.


Urinary‐Nitrogen Output By Dairy Cows In Conventional And Organic Grazing Systems, I. M. Brookes, David J. Horne, A. R. Thatcher Nov 2020

Urinary‐Nitrogen Output By Dairy Cows In Conventional And Organic Grazing Systems, I. M. Brookes, David J. Horne, A. R. Thatcher

IGC Proceedings (1977-2023)

No abstract provided.


Effect Of Community Grazing Regulation On Degraded Grasslands In Inner Mongolia, Ian Auldist, Zihong Chen, E. Erdun Baolige Nov 2020

Effect Of Community Grazing Regulation On Degraded Grasslands In Inner Mongolia, Ian Auldist, Zihong Chen, E. Erdun Baolige

IGC Proceedings (1977-2023)

No abstract provided.