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2020

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Articles 91 - 120 of 2097

Full-Text Articles in Agronomy and Crop Sciences

Restoring Rain Use Efficiency To An Incised Upland Valley System In Namibia Using Filters And Ecosystem Management Understanding (Emu) Principles, K. Shamathe, H. J. R. Pringle, I. Zimmermann Dec 2020

Restoring Rain Use Efficiency To An Incised Upland Valley System In Namibia Using Filters And Ecosystem Management Understanding (Emu) Principles, K. Shamathe, H. J. R. Pringle, I. Zimmermann

IGC Proceedings (1977-2023)

No abstract provided.


Genome-Wide Association Mapping And Genomic Prediction Of Anther Extrusion In Cimmyt Hybrid Wheat Breeding Program Via Modeling Pedigree, Genomic Relationship, And Interaction With The Environment, Anil Adhikari, Bhoja Raj Basnet, Jose Crossa, Susanne Dreisigacker, Fatima Camarillo, Pradeep Kumar Bhati, Diego Jarquin, Yann Manes, Amir M.H. Ibrahim Dec 2020

Genome-Wide Association Mapping And Genomic Prediction Of Anther Extrusion In Cimmyt Hybrid Wheat Breeding Program Via Modeling Pedigree, Genomic Relationship, And Interaction With The Environment, Anil Adhikari, Bhoja Raj Basnet, Jose Crossa, Susanne Dreisigacker, Fatima Camarillo, Pradeep Kumar Bhati, Diego Jarquin, Yann Manes, Amir M.H. Ibrahim

Department of Agronomy and Horticulture: Faculty Publications

Anther extrusion (AE) is the most important male floral trait for hybrid wheat seed production. AE is a complex quantitative trait that is difficult to phenotype reliably in field experiments not only due to high genotype-by-environment effects but also due to the short expression window in the field condition. In this study, we conducted a genome-wide association scan (GWAS) and explored the possibility of applying genomic prediction (GP) for AE in the CIMMYT hybrid wheat breeding program. An elite set of male lines (n = 603) were phenotype for anther count (AC) and anther visual score (VS) across three field …


Thermal Time Requirements For Leaf Appearance Of Frontier Balansa Clover, D. P. Monks, D. J. Moot Dec 2020

Thermal Time Requirements For Leaf Appearance Of Frontier Balansa Clover, D. P. Monks, D. J. Moot

IGC Proceedings (1977-2023)

No abstract provided.


The Effect Of Rapid Paddock Movement On Yearling Steer Weight Gain And Forage Condition In North‐Central Nebraska, Usa, D. G. Mickey Steward Dec 2020

The Effect Of Rapid Paddock Movement On Yearling Steer Weight Gain And Forage Condition In North‐Central Nebraska, Usa, D. G. Mickey Steward

IGC Proceedings (1977-2023)

No abstract provided.


Two Techniques To Measure Herbage Intake Of Grazing Dairy Cows, Mary Mcevoy, M. O'Donovan, Tommy M. Boland, Luc Delaby Dec 2020

Two Techniques To Measure Herbage Intake Of Grazing Dairy Cows, Mary Mcevoy, M. O'Donovan, Tommy M. Boland, Luc Delaby

IGC Proceedings (1977-2023)

No abstract provided.


The Effect Of Pre‐Grazing Herbage Mass On Milk Production And Of Dairy Cows In Mid‐Lactation, Mary Mcevoy, M. O'Donovan, Tommy M. Boland, Luc Delaby Dec 2020

The Effect Of Pre‐Grazing Herbage Mass On Milk Production And Of Dairy Cows In Mid‐Lactation, Mary Mcevoy, M. O'Donovan, Tommy M. Boland, Luc Delaby

IGC Proceedings (1977-2023)

No abstract provided.


Development Of Mping-Based Activation Tags For Crop Insertional Mutagenesis, Alexander Johnson, Edward Mcassey, Stephanie Diaz, Jacob Reagin, Priscilla S. Redd, Daymond R. Parrilla, Hanh T. Nguyen, Adrian Stec, Lauren A.L. Mcdaniel, Thomas E. Clemente, Robert M. Stupar, Wayne A. Parrott, C Nathan Hancock Dec 2020

Development Of Mping-Based Activation Tags For Crop Insertional Mutagenesis, Alexander Johnson, Edward Mcassey, Stephanie Diaz, Jacob Reagin, Priscilla S. Redd, Daymond R. Parrilla, Hanh T. Nguyen, Adrian Stec, Lauren A.L. Mcdaniel, Thomas E. Clemente, Robert M. Stupar, Wayne A. Parrott, C Nathan Hancock

Department of Agronomy and Horticulture: Faculty Publications

Modern plant breeding increasingly relies on genomic information to guide crop improvement. Although some genes are characterized, additional tools are needed to effectively identify and characterize genes associated with crop traits. To address this need, the mPing element from rice was modified to serve as an activation tag to induce expression of nearby genes. Embedding promoter sequences in mPing resulted in a decrease in overall transposition rate; however, this effect was negated by using a hyperactive version of mPing called mmPing20. Transgenic soybean events carrying mPing-based activation tags and the appropriate transposase expression cassettes showed evidence of transposition. Expression analysis …


Pengaruh Frekuensi Penyiraman Terhadap Pertumbuhan, Hasil, Dan Fenologi Tanaman Hanjeli Ratun Di Dataran Medium, Arifa Syahanna Mahdya, Tati Nurmala, Yuyun Yuwariah Dec 2020

Pengaruh Frekuensi Penyiraman Terhadap Pertumbuhan, Hasil, Dan Fenologi Tanaman Hanjeli Ratun Di Dataran Medium, Arifa Syahanna Mahdya, Tati Nurmala, Yuyun Yuwariah

Jurnal Kultivasi

Salah satu keanekaragaman tanaman pangan yang dikembangkan untuk mengurangi konsumsi beras yaitu tanaman hanjeli pulut (Coix lacryma-jobi L. var mayuen). Permasalahan yang dihadapi pada budidaya hanjeli adalah umur panen yang cukup lama dan produktivitas yang rendah. Ratun diharapkan dapat meningkatkan indeks pertanaman, namun dapat bermasalah ketika memasuki musim kemarau. Penelitian ini bertujuan untuk mempelajari perbedaan pertumbuhan, hasil, dan fenologi tanaman hanjeli pada kondisi kekurangan air. Penelitian dilaksanakan pada bulan Februari 2019 – September 2019 di Kebun Percobaan Ciparanje, Fakultas Pertanian Universitas Padjadjaran, Jatinangor. Metode analisis yang digunakan dalam penelitian ini adalah deskriptif-kuantitatif. Tanaman diberi perlakuan frekuensi penyiraman yang berbeda, yaitu …


Studi Ekofisiologis Tanaman Teh Guna Meningkatkan Pertumbuhan, Hasil, Dan Kualitas Teh, Intan Ratna Dewi Anjarsari, Mira Ariyanti, Santi Rosniawaty Dec 2020

Studi Ekofisiologis Tanaman Teh Guna Meningkatkan Pertumbuhan, Hasil, Dan Kualitas Teh, Intan Ratna Dewi Anjarsari, Mira Ariyanti, Santi Rosniawaty

Jurnal Kultivasi

Teh merupakan salah satu komoditas perkebunan yang memegang peranan cukup penting dalam perekonomian Indonesia, yaitu sebagai sumber pendapatan dan devisa serta penyedia lapangan kerja bagi masyarakat. Teh di Indonesia sebagian besar berasal dari Jawa Barat dengan kontribusi produksi (rata-rata lima tahun terakhir) sebesar 66,93%, sedangkan provinsi lainnya hanya berkontribusi kurang dari 10%. Produksi teh di Indonesia padatahun 2017 sebesar 146,17 ton, selalu berfluktuasi dari tahun ke tahun, hingga diperkirakan tahun 2021 menurun dengan produksi sebesar 141,63 ton. Seperti halnya komoditas perkebunan yang lain, tanaman teh dalam perkembangannya mengalami fluktuasi produksi pucuk sebagai bahan baku olahan teh. Produktivitas teh sangat dipengaruhi …


How Canadian Farmers Are Extending The Grazing Season--A Research Success Story, Duane H. Mccartney Dec 2020

How Canadian Farmers Are Extending The Grazing Season--A Research Success Story, Duane H. Mccartney

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.


Development Of A Model Of Growth Of Grass/White Clover Swards For A Grassland Management Support System, A. Scott Laidlaw Dec 2020

Development Of A Model Of Growth Of Grass/White Clover Swards For A Grassland Management Support System, A. Scott Laidlaw

IGC Proceedings (1977-2023)

No abstract provided.


Integrated Management Of Feral Camels In Ngaanyatjarra Aboriginal Lands, Australia, Gordon Sanders, A. Knight Dec 2020

Integrated Management Of Feral Camels In Ngaanyatjarra Aboriginal Lands, Australia, Gordon Sanders, A. Knight

IGC Proceedings (1977-2023)

No abstract provided.


Effect Of Winter Closing Date And Spring Opening Date On The Dm Yield Of Perennial Ryegrass Cultivars, Emer Kennedy, M. O'Donovan, Mary Mcevoy Dec 2020

Effect Of Winter Closing Date And Spring Opening Date On The Dm Yield Of Perennial Ryegrass Cultivars, Emer Kennedy, M. O'Donovan, Mary Mcevoy

IGC Proceedings (1977-2023)

No abstract provided.


Effect Of Restricted Access Time To Pasture On Dairy Cow Milk Production, Grazing Behaviour And Dry Matter Intake, Emer Kennedy, M. O'Donovan Dec 2020

Effect Of Restricted Access Time To Pasture On Dairy Cow Milk Production, Grazing Behaviour And Dry Matter Intake, Emer Kennedy, M. O'Donovan

IGC Proceedings (1977-2023)

No abstract provided.


Sustainable Management Of Semi‐Arid Rangelands And Optimal Paddock Size‐-An Ecological‐Economic Modelling Analysis, O. Jakoby, M. F. Quaas Dec 2020

Sustainable Management Of Semi‐Arid Rangelands And Optimal Paddock Size‐-An Ecological‐Economic Modelling Analysis, O. Jakoby, M. F. Quaas

IGC Proceedings (1977-2023)

No abstract provided.


Grazing Systems Demonstration To Optimise Pasture Utilisation And Stocking Rate In Mediterranean Environments Of Southern Australia, M. W. Hyder, L. Anderton, S. Shaw, R. M. Mctaggart, D. Roberts, T. W. Plaisted, J. Douglas Dec 2020

Grazing Systems Demonstration To Optimise Pasture Utilisation And Stocking Rate In Mediterranean Environments Of Southern Australia, M. W. Hyder, L. Anderton, S. Shaw, R. M. Mctaggart, D. Roberts, T. W. Plaisted, J. Douglas

IGC Proceedings (1977-2023)

No abstract provided.


Effectiveness Of Infrastructure Developments In Achieving Uniform Grazing Distribution On Extensive Cattle Properties In Northern Australia, L. P. Hunt, S. R. Petty, R. Cowley, A. Fisher, A. J. Ash, N. Macdonald Dec 2020

Effectiveness Of Infrastructure Developments In Achieving Uniform Grazing Distribution On Extensive Cattle Properties In Northern Australia, L. P. Hunt, S. R. Petty, R. Cowley, A. Fisher, A. J. Ash, N. Macdonald

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.


Growth Of Carcass Tissues In Grazing Nursing Calves Supplemented Or Not, H. J. Fernandes, A. A. Rocha, M. F. Paulino, A. G. Silva, J. Cavali, M. O. Porto, J. C. De Souza, L. M. Paiva Dec 2020

Growth Of Carcass Tissues In Grazing Nursing Calves Supplemented Or Not, H. J. Fernandes, A. A. Rocha, M. F. Paulino, A. G. Silva, J. Cavali, M. O. Porto, J. C. De Souza, L. M. Paiva

IGC Proceedings (1977-2023)

No abstract provided.


Tillage Method And Glyphosate-Resistant Alfalfa Termination Timing Affect Soil Properties And Subsequent Corn Yield, Jason Clark, Matt A. Yost, Grant E. Cardon, Corey V. Ransom, J. Earl Creech Dec 2020

Tillage Method And Glyphosate-Resistant Alfalfa Termination Timing Affect Soil Properties And Subsequent Corn Yield, Jason Clark, Matt A. Yost, Grant E. Cardon, Corey V. Ransom, J. Earl Creech

Agronomy, Horticulture and Plant Science Faculty Publications

Application of glyphosate [N-(phosphonomethyl) glycine]-containing herbicides and tillage, alone or in combination, has been the standard for removing declining alfalfa (Medicago sativa L.) stands. With glyphosate no longer an option to control glyphosate-resistant alfalfa, different termination strategies are needed. Field studies across four site-years in Utah evaluated the effect of tillage type and timing (fall conventional till, spring conventional till, fall strip-till, spring strip-till, and no-till) and herbicide timing (fall, spring, in-crop, and no herbicide) of 2,4-D (2,4- dichlorophenoxyacetic acid) and dicamba (3,6-dichloro-2-methoxybenzoic acid) on penetration resistance, alfalfa regrowth, corn (Zea mays L.) emergence rate, and silage corn yield. Across …


Parallel Strategies To Control Bacterial Panicle Blight Of Rice, Laura Ortega Dec 2020

Parallel Strategies To Control Bacterial Panicle Blight Of Rice, Laura Ortega

Graduate Theses and Dissertations

Bacterial Panicle Blight (BPB) of rice is a seed-borne disease caused by the bacterium Burkholderia glumae. This disease has affected rice production worldwide and its effects are likely to become more devastating with the continuous increase in global temperatures especially during the growing season. Field data has shown that the disease has been more prevalent in years when the temperatures have been unusually high especially at night possibly due to the bacterial adaptation to grow at temperatures higher than 40oC. With the continuous rise in global temperatures, it is likely that this disease will be more problematic. The bacterium can …


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 …


Rice Chilling Aeration: Assessment Of Impacts On Grain Quality, Process Modeling And Validation, Soraya Shafiekhani Dec 2020

Rice Chilling Aeration: Assessment Of Impacts On Grain Quality, Process Modeling And Validation, Soraya Shafiekhani

Graduate Theses and Dissertations

The goal of this study is to demonstrate the effectiveness of applying chilling temperatures during on-farm, in-bin drying and storage to maintain rice quality. Specific objectives include to demonstrate the effectiveness of chilling aeration to preserve rice quality characteristics, determine the drying kinetics of rice under low temperature environments, and develop models to predict heat and mass transfer in rice kernel during drying at low temperature environment. To date, there is limited research describing storability or drying behavior of rice in chilled environments. However, it is understood that chilling of high-moisture, > 21% wet basis rough rice could reduce the time …


Reducing Mowing Requirements In Home Lawn And Golf Course Turfgrass, Mark A. Keck Dec 2020

Reducing Mowing Requirements In Home Lawn And Golf Course Turfgrass, Mark A. Keck

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

Turfgrass systems are routinely managed by frequent mowing to increase aesthetics and function. Mowing is resource intensive with a high labor and energy demand. Reducing the number of mowings events in a growing season will decrease the labor and energy but may reduce quality as well. Previous work has looked at reducing mowing by changing the frequency and by using a plant growth regulator (PGR). Limited information is available about how to reduce mowing while maintaining acceptable quality. We looked at two different management practices to reduce mowing and maintain quality. The first study evaluated seven different mowing frequencies at …