Genetic Characterization Of The Soybean Nested
Association Mapping Population,
2017
USDA, Agricultural Research Service
Genetic Characterization Of The Soybean Nested Association Mapping Population, Qijian Song, Long Yan, Charles Quigley, Brandon D. Jordan, Edward Fickus, Steve Schroeder, Bao-Hua Song, Yong-Qiang Charles An, David Hyten, Randall L. Nelson, Katy Rainey, William D. Beavis, Jim Specht, Brian Diers, Perry Cregan
Department of Agronomy and Horticulture: Faculty Publications
A set of nested association mapping (NAM) families was developed by crossing 40 diverse soybean [Glycine max (L.) Merr.] genotypes to the common cultivar. The 41 parents were deeply sequenced for SNP discovery. Based on the polymorphism of the single-nucleotide polymorphisms (SNPs) and other selection criteria, a set of SNPs was selected to be included in the SoyNAM6K BeadChip for genotyping the parents and 5600 RILs from the 40 families. Analysis of the SNP profiles of the RILs showed a low average recombination rate. We constructed genetic linkage maps for each family and a composite linkage map based on …
Editorial: Genomic Approaches For
Improvement Of Understudied
Grasses,
2017
University of Nebraska-Lincoln
Editorial: Genomic Approaches For Improvement Of Understudied Grasses, Keenan Amundsen, Gautam Sarath, Teresa Donze-Reiner
Department of Agronomy and Horticulture: Faculty Publications
Grasses are diverse, spanning native prairies to high-yielding grain cropping systems. They are valued for their beauty and useful for soil stabilization, pollution mitigation, biofuel production, nutritional value, and forage quality; grasses encompass the most important grain crops in the world. There are thousands of distinct grass species and many have promiscuous hybridization patterns, blurring species boundaries. Resources for advancing the science and knowledgebase of individual grass species or their unique characteristics varies, often proportional to their perceived value to society. For many grasses, limited genetic information hinders research progress. Presented in this research topic is a brief snapshot of …
Expression Of The Maize Dof1
Transcription Factor In Wheat And
Sorghum,
2017
University of Nebraska-Lincoln
Expression Of The Maize Dof1 Transcription Factor In Wheat And Sorghum, Pamela A. Pena, Truyen Quach, Shirley Sato, Zhengxiang Ge, Natalya Nersesian, Taity Changa, Ismail M. Dweikat, Madhavan Soundararajan, Tom E. Clemente
Department of Agronomy and Horticulture: Faculty Publications
Nitrogen is essential for plant growth and development. Improving the ability of plants to acquire and assimilate nitrogen more efficiently is a key agronomic parameter that will augment sustainability in agriculture. A transcription factor approach was pursued to address improvement of nitrogen use efficiency in two major commodity crops. To this end, the Zea mays Dof1 (ZmDof1) transcription factor was expressed in both wheat (Triticum aestivum) and sorghum (Sorghum bicolor) either constitutively, UBI4 promoter from sugarcane, or in a tissue specific fashion via the maize rbcS1 promoter. The primary transcription activation target of ZmDof1 …
Does Timing Of Herbicide Use Influence Rates Of Germination Or Seedling Biomass Of Native Plants Used For Restoration?,
2017
University of Montana, Missoula
Does Timing Of Herbicide Use Influence Rates Of Germination Or Seedling Biomass Of Native Plants Used For Restoration?, Christine Mcmanamen
Graduate Student Theses, Dissertations, & Professional Papers
Invasive plants can negatively impact native grasslands by changing their species composition, productivity, and function. Managers commonly use herbicides as a control method; however, this practice can lead to secondary invasion by other non-native invasive plants, unless measures are taken to promote natives. Because of this, managers often seed native plants after spraying herbicides. There is evidence, however, that chemical control of invasive plants may reduce the effectiveness of subsequent seed-addition treatments, but there is currently little quantitative information on optimal timing between spraying and seeding or on variation in herbicide sensitivity among native plants commonly used in seed mixes. …
Pertumbuhan Dan Hasil Padi Gogo Hubungannya Dengan Kandungan Prolin Dan 2-Acetyl-1-Pyrroline Pada Kondisi Kadar Air Tanah Berbeda,
2016
Laboratorium Agroekologi, Program Studi Agroteknologi, Fakultas Pertanian, Universitas Jenderal Soedirman Jln. Dr. Soeparno, Karangwangkal, Purwokerto
Pertumbuhan Dan Hasil Padi Gogo Hubungannya Dengan Kandungan Prolin Dan 2-Acetyl-1-Pyrroline Pada Kondisi Kadar Air Tanah Berbeda, A. Y. Rahayu, T. A.D. Haryanto, S. N. Iftitah
Jurnal Kultivasi
Penelitian ini bertujuan untuk mengetahui respons varietas padi gogo pada kadar air tanah berbeda terhadap pertumbuhan, hasil dan kandungan prolin dan 2-acetyl-1-pyrroline biji. Penelitian dilaksanakan di Universitas Tidar Magelang mulai bulan September 2012 sampai dengan Maret 2013. Percobaan menggunakan Rancangan Acak Kelompok Lengkap terdiri atas dua faktor yaitu varietas padi gogo (Inpago Unsoed-1, galur JSPGA 136, varietas Situ-bagendit (non-aromatik) dan varietas Mentik Wangi) dan tingkat kadar air tanah (100 % kapasitas lapang dan 50 % kapasitas lapang). Variabel pengamatan meliputi: tinggi tanaman (cm), jumlah anakan total per rumpun (batang), jumlah anakan produktif (batang), total panjang akar (m), umur berbunga (hst), …
Aplikasi Sitokinin Untuk Pematahan Dormansi Benih Kentang G1 (Solanum Tuberosum L.),
2016
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Padjadjaran
Aplikasi Sitokinin Untuk Pematahan Dormansi Benih Kentang G1 (Solanum Tuberosum L.), Anne Nuraini, Sumadi, R. Pratama
Jurnal Kultivasi
Kentang merupakan komoditas pertanian yang mempunyai arti penting di dunia. Kentang mempunyai berbagai macam keunggulan seperti sumber protein yang tinggi, tidak mudah rusak seperti sayuran lain, dan berpotensi dalam program diversivikasi pangan. Salah satu kendala dalam produksi kentang adalah adanya fase dormansi pada masa pertumbuhan kentang. Upaya mempercepat masa dormansi tanaman adalah dengan penambahan hormon pemacu pertumbuhan. Sitokinin merupakan salah satu hormon pemacu pertumbuhan yang berperan dalam pembelahan sel. Tujuan dilakukannya penelitian ini adalah untuk mengetahui pengaruh konsentrasi sitokinin terhadap dormansi benih kentang. Penelitian ini dilakukan di laboratorium Teknologi Benih Fakultas Pertanian Universitas Padjadjaran. Sitokinin yang digunakan pada penelitian ini …
Pertumbuhan Dan Hasil Gandum (Triticum Aestivum L.) Yang Diberi Perlakuan Pupuk Silikon Dengan Dosis Yang Berbeda Di Dataran Medium Jatinangor,
2016
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Padjadjaran
Pertumbuhan Dan Hasil Gandum (Triticum Aestivum L.) Yang Diberi Perlakuan Pupuk Silikon Dengan Dosis Yang Berbeda Di Dataran Medium Jatinangor, Fiky Yulianto Wicaksono, Yudithia Maxiselly, Oviyanti Mulyani, M. I. Janitra
Jurnal Kultivasi
Pemberian silikat diketahui dapat meningkatkan aktivitas antioksidan, stabilitas membran sel, dan kandungan klorofil meningkat sehingga dapat mengatasi cekaman panas. Penelitian ini bertujuan untuk mengetahui dosis silikon yang optimum terhadap pertumbuhan dan hasil tanaman gandum yang maksimum di dataran medium. Percobaan dilakukan sejak Maret hingga Agustus 2016 di Kebun Percobaan Fakultas Pertanian Universitas Padjadjaran, Jatinangor, dengan ketinggian tempat yaitu ± 750 m di atas permukaan laut. Rancangan percobaan adalah Rancangan Acak Kelompok, terdiri dari 7 perlakuan dosis pupuk silika yang diulang 3 kali. Perlakuan terdiri dari 0, 50, 100, 150, 200, 250, dan 300 kg ha-1. Perbedaan nilai rata-rata taraf diuji …
Pengaruh Konsentrasi Giberelin Dan Pupuk Organik Cair Asal Rami Terhadap Pertumbuhan Dan Hasil Tanaman Rami (Boehmeria Nivea (L.) Gaud) Klon Ramindo 1,
2016
Fakultas Pertanian, Universitas Padjadjaran
Pengaruh Konsentrasi Giberelin Dan Pupuk Organik Cair Asal Rami Terhadap Pertumbuhan Dan Hasil Tanaman Rami (Boehmeria Nivea (L.) Gaud) Klon Ramindo 1, Cucu Suherman, Anne Nuraini, R. Damayanthi
Jurnal Kultivasi
Rami adalah salah satu jenis tanaman penghasil serat yang memiliki potensi hasil lebih tinggi dibanding tanaman kapas. Salah satu faktor penentu tinggi rendahnya hasil adalah panjang dan jumlah serat, yang antara lain ditentukan oleh tinggi dan diameter batang tanaman. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi giberelin dan pupuk organik cair rami serta memperoleh salah satu kombinasi konsentrasi giberelin dan POC rami yang memberikan pengaruh terbaik pada pertumbuhan dan hasil serat tanaman rami klon Ramindo 1. Percobaan dilaksanakan dari bulan Januari 2016 sampai bulan Maret 2016 di kebun percobaan CiparanjeFaperta Universitas Padjadjaran, Jatinangor, dengan ketinggian tempat mencapai 829 m di …
Can Sub-Saharan Africa Feed Itself?,
2016
Wageningen Agricultural University
Can Sub-Saharan Africa Feed Itself?, Martin K. Van Ittersum, Lenny G. J. Van Bussel, Joost Wolf, Patricio Grassini, Justin Van Wart, Nicolas Guilpart, Lieven Claessens, Hugo De Groot, Keith Wiebe, Daniel Mason-D'Croz, Haishun Yang, Hendrik Boogard, Pepijn A. J. Van Oort, Marloes P. Van Loon, Kazuki Saito, Ochieng Adimo, Samuel Adjei-Nsiah, Alhassane Agali, Abdullahi Bala, Regis Chikowo, Kayuki Kaizzi, Mamoutou Kouressy, Joachim H. J. R. Makoi, Korodjouma Ouattara, Kindie Tesfaye, Kenneth G. Cassman
Department of Agronomy and Horticulture: Faculty Publications
Although global food demand is expected to increase 60% by 2050 compared with 2005/2007, the rise will be much greater in sub- Saharan Africa (SSA). Indeed, SSA is the region at greatest food security risk because by 2050 its population will increase 2.5-fold and demand for cereals approximately triple, whereas current levels of cereal consumption already depend on substantial imports. At issue is whether SSA can meet this vast increase in cereal demand without greater reliance on cereal imports or major expansion of agricultural area and associated biodiversity loss and greenhouse gas emissions. Recent studies indicate that the global increase …
Can Functional Traits Predict Plant Community Response To Global Change?,
2016
University of California - Irvine
Can Functional Traits Predict Plant Community Response To Global Change?, Sarah Kimball, Jennifer L. Funk, Marko J. Spasojevic, Katharine N. Suding, Scot Parker, Michael K. Goulden
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
One primary goal at the intersection of community ecology and global change biology is to identify functional traits that are useful for predicting plant community response to global change. We used observations of community composition from a long-term field experiment in two adjacent plant communities (grassland and coastal sage shrub) to investigate how nine key plant functional traits were related to altered water and nitrogen availability following fire. We asked whether the functional responses of species found in more than one community type were context dependent and whether community-weighted mean and functional diversity were significantly altered by water and nitrogen …
Impacts Of Long-Term Precipitation Manipulation On Hydraulic Architecture, Xylem Function, And Canopy Status In A Piñon-Juniper Woodland,
2016
University of New Mexico
Impacts Of Long-Term Precipitation Manipulation On Hydraulic Architecture, Xylem Function, And Canopy Status In A Piñon-Juniper Woodland, Patrick J. Hudson
Biology ETDs
The Southwestern US is predicted to become hotter and drier, as global climate change forces increasing temperatures and variability in timing and size of precipitation inputs. Drought stress has become more frequent in recent decades, and resulted in massive forest mortality in piñon-juniper woodlands. During recent severe droughts (2000-2003, 2009-2012), piñon pine (Pinus edulis Englem.) suffered disproportionately high mortality compared to co-occurring one-seed juniper (Juniperus monosperma [Engelm.] Sarg.). A large-scale precipitation manipulation experiment was established in a piñon-juniper woodland in central New Mexico to test hypotheses regarding tree survival and mortality with respect to altered water regimes. Our …
Vascular Flora Of The Rocky Fork Tract, Tennessee, Usa, And Its Use In Conservation And Management,
2016
East Tennessee State University
Vascular Flora Of The Rocky Fork Tract, Tennessee, Usa, And Its Use In Conservation And Management, Foster Levy, Elaine S. Walker
ETSU Faculty Works
A flora of the 3800 ha Rocky Fork Tract in northeast Tennessee produced 749 species of which 19 were on the Tennessee Rare Plant List and 34 were on the Cherokee National Forest Species Viability List with 87 county records from Greene County and 217 from Unicoi County. Rare species were particularly numerous in the Cyperaceae and Orchidaceae. The tract serves as a refuge for several regionally uncommon species by supporting either large populations or metapopulations of these species. Exotic species comprised 15% of the flora and were most common in the Fabaceae and Poaceae. The most unique habitat was …
Salvinia Molesta: An Assessment Of The Effects And Methods Of Eradication,
2016
The University of San Francisco
Salvinia Molesta: An Assessment Of The Effects And Methods Of Eradication, Arti Lal
Master's Projects and Capstones
Salvinia molesta is an invasive aquatic fern. It is now the second worse aquatic invader in the world. Since the 1930s, it has invaded most tropical and some temperate countries. S. molesta plants grow vegetatively and can increase in size rapidly. S. molesta can form thick mats of up to 1-meter-thick. There are a number of ways these thick mats negatively affect the environment: 1) reduce light to benthic organisms, 2) reduce oxygen in the water column for other organisms, 3) accumulate as organic matter at the bottom of the water column, 4) decrease nutrients for other organisms, and 5) …
Characterization Of The Cytokinin-Responsive Transcriptome In Rice,
2016
University of North Carolina at Chapel Hill
Characterization Of The Cytokinin-Responsive Transcriptome In Rice, Tracy Raines, Ivory C. Blakley, Yu-Chang Tsai, Jennifer M. Worthen, José M. Franco-Zorrilla, Roberto Solano, G. Eric Schaller
Dartmouth Scholarship
Cytokinin activates transcriptional cascades important for development and the responses to biotic and abiotic stresses. Most of what is known regarding cytokinin-regulated gene expression comes from studies of the dicotyledonous plant Arabidopsis thaliana. To expand the understanding of the cytokinin-regulated transcriptome, we employed RNA-Seq to analyze gene expression in response to cytokinin in roots and shoots of the monocotyledonous plant rice.
Dissecting Salt Tolerance In Soybean By Profiling Differential Physiological Responses Under Salt Stress,
2016
University of Arkansas, Fayetteville
Dissecting Salt Tolerance In Soybean By Profiling Differential Physiological Responses Under Salt Stress, Jade Amber Newsome
Graduate Theses and Dissertations
Saline soils are common worldwide and limit the yield potential of many crops. Plants respond in a variety of ways to the stress imposed by saline soils. Plants under salt stress must first sense their surroundings and transmit a signal alerting the rest of the plant to the saline conditions. Salt tolerance in soybeans is typically defined by exclusion of chloride ions from foliar tissues. Though differences in ion uptake among soybean genotypes is well documented, the key mechanisms employed by tolerant cultivars to cope with salt stress on the whole-plant level are still largely unknown. Objectives of the current …
Association Mapping Of Seed Weight, Protein, And Sucrose Content; And Kinetics Of Edamame Under Infrared Treatment,
2016
University of Arkansas, Fayetteville
Association Mapping Of Seed Weight, Protein, And Sucrose Content; And Kinetics Of Edamame Under Infrared Treatment, Laura Melissa Lara Santisteban
Graduate Theses and Dissertations
Edamame is a specialty large-seeded soybean (Glycine max L. Merr.) harvested at an immature stage (R6) that has become the second largest consumed soyfood. Although United States is the largest soybean producer, majority of edamame is imported from Asia, highlighting the importance of developing new edamame varieties. Association mapping (AM) provides an alternative to bi-parental linkage mapping method to detect quantitative trait loci (QTL) adding higher resolution and broader germplasm information. Seed weight, sucrose, and protein are quantitative traits of value when selecting edamame lines. However molecular mechanisms controlling each of these traits are still inconclusive and have not been …
The Coat Protein And Nia Protease Of Two Potyviridae Family Members Independently Confer Superinfection Exclusion,
2016
USDA-ARS
The Coat Protein And Nia Protease Of Two Potyviridae Family Members Independently Confer Superinfection Exclusion, Satyanarayana Tatineni, Roy French
Department of Plant Pathology: Faculty Publications
Superinfection exclusion (SIE) is an antagonistic virus-virus interaction whereby initial infection by one virus prevents subsequent infection by closely related viruses. Although SIE has been described in diverse viruses infecting plants, humans, and animals, its mechanisms, including involvement of specific viral determinants, are just beginning to be elucidated. In this study, SIE determinants encoded by two economically important wheat viruses, Wheat streak mosaic virus (WSMV; genus Tritimovirus, family Potyviridae) and Triticum mosaic virus (TriMV; genus Poacevirus, family Potyviridae), were identified in gain-of-function experiments that used heterologous viruses to express individual virus-encoded proteins in wheat. Wheat plants infected …
The Biology And Management Of Palmer Amaranth (Amaranthus Palmeri S. Wats) In Indiana,
2016
Purdue University
The Biology And Management Of Palmer Amaranth (Amaranthus Palmeri S. Wats) In Indiana, Douglas J. Spaunhorst
Open Access Dissertations
Palmer amaranth is a pernicious summer annual weed that has evolved resistance to six herbicide sites of action in the U.S. and threatens agriculture production. In 2011, Palmer amaranth was identified in flood plains in two southern Indiana counties (Posey and Vanderburgh). Determining if Palmer amaranth can survive and reproduce in northern Indiana may provide insight if this weed will be problematic for northern row crop producers. The objectives of our research were to identify fields containing Palmer amaranth and determine the distribution of herbicide resistance traits in Indiana; determine the influence of tillage frequency and tillage intervals on Palmer …
Quantitative Trait Loci (Qtl) For Salt Tolerance In Soybean And Physiological Response To Salt Stress During Early Growth Stage,
2016
University of Arkansas, Fayetteville
Quantitative Trait Loci (Qtl) For Salt Tolerance In Soybean And Physiological Response To Salt Stress During Early Growth Stage, Cindy Massiel Lopez Ramirez
Graduate Theses and Dissertations
Soybean is a major cash crop used as a source of high–quality protein and oil. Salt stress is one of the main abiotic stresses causing significant yield losses in soybean, which is considered a moderately salt–sensitive crop. Breeding selection is a promising strategy to improve salt tolerance as soybean germplasm display wide variation in response to salinity stress. However, the physiological and genetic mechanisms for salt tolerance are not quite clear. The discovery of novel QTL/genes associated with salt tolerance facilitates the development of tolerant cultivars through marker-assisted selection (MAS). The objectives of this study were: 1) identify/confirm QTL associated …
Effect Of Smooth Bromegrass Management On Grazing Cattle Dung Decomposition, Co2 Flux, And Soil Nutrient Movement,
2016
University of Nebraska-Lincoln
Effect Of Smooth Bromegrass Management On Grazing Cattle Dung Decomposition, Co2 Flux, And Soil Nutrient Movement, Bradley D. Schick
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
Rapid nutrient cycling improves forage quality and livestock production in pastures. Interseeding legumes may be a strategy to enhance N cycling, but effects of dung excreted from cattle grazing pastures with legumes on dung decomposition rates and soil N cycling have not been studied. Our objective was to evaluate how dung excreted from cattle grazing legume-interseeded, N-fertilized, and unfertilized smooth bromegrass (Bromus inermis Leyss.) pastures affects dung chemical composition, dry matter decomposition, CO2 flux, and N availability in soil. Freshly deposited dung from yearling steers grazing legume-interseeded, N-fertilized, and unfertilized pastures was collected and placed as pats in …
