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10,788 full-text articles. Page 107 of 218.

Genotype-Corrector: Improved Genotype Calls For Genetic Mapping In F2 And Ril Populations, Chenyong Miao, Jingping Fang, Delin Li, Pingping Liang, Xingtan Zhang, Jinliang Yang, James C. Schnable, Haibao Tang 2018 Fujian Agriculture and Forestry University

Genotype-Corrector: Improved Genotype Calls For Genetic Mapping In F2 And Ril Populations, Chenyong Miao, Jingping Fang, Delin Li, Pingping Liang, Xingtan Zhang, Jinliang Yang, James C. Schnable, Haibao Tang

Department of Agronomy and Horticulture: Faculty Publications

F2 and recombinant inbred lines (RILs) populations are very commonly used in plant genetic mapping studies. Although genome-wide genetic markers like single nucleotide polymorphisms (SNPs) can be readily identified by a wide array of methods, accurate genotype calling remains challenging, especially for heterozygous loci and missing data due to low sequencing coverage per individual. Therefore, we developed Genotype-Corrector, a program that corrects genotype calls and imputes missing data to improve the accuracy of genetic mapping. Genotype-Corrector can be applied in a wide variety of genetic mapping studies that are based on low coverage whole genome sequencing (WGS) or Genotyping-by-Sequencing …


Management And Modeling Of Winter-Time Basil Cultivars Grown With A Cap Mat System, George E. Meyer, M. Elizabeth Conley, Ellen T. Paparozzi 2018 University of Nebraska-Lincoln

Management And Modeling Of Winter-Time Basil Cultivars Grown With A Cap Mat System, George E. Meyer, M. Elizabeth Conley, Ellen T. Paparozzi

Department of Agronomy and Horticulture: Faculty Publications

Basil (Ocimum basilicum) is a high value crop, currently grown in the field and greenhouses in Nebraska. Winter-time, greenhouse studies were conducted during 2015 and 2016, focusing on cultivars of basil grown on a Cap MAT II® system with various levels of fertilizer application. The goal was to select high value cultivars that could be grown in Nebraska greenhouses. The studies used water content, electrical conductivity, photosynthetically active radiation (PAR), and relative humidity, air and soil media temperature sensors. Greenhouse systems can be very complex, even though controlled by mechanical heating and cooling. Uncertain or ambiguous environmental and …


Climate Change Challenges Require Collaborative Research To Drive Agrifood System Transformation, Gabrielle E. Roesch-McNally, Andrea D. Basche, Rebecca Schewe 2018 Northwest Regional Climate Hub

Climate Change Challenges Require Collaborative Research To Drive Agrifood System Transformation, Gabrielle E. Roesch-Mcnally, Andrea D. Basche, Rebecca Schewe

Department of Agronomy and Horticulture: Faculty Publications

The recent Climate Science Special Report released as part of the Fourth National Climate Assessment confirms that we are living through the warmest period in modern civilization and that human activities are the primary driver of this warming (Wuebbles et al., 2017). These climatic changes have and will continue to impact global agricultural production, with food security and production consequences that will be felt unequally across the planet. Agricultural activities contribute to global warming emissions, while also offering opportunities for greenhouse gas mitigation. It is clear that the agrifood system will have to adapt to a changing climate. To better …


Engineering Linear, Branched-Chain Triterpene Metabolism In Monocots, Chase Kempinski, Zuodong Jiang, Garrett Zinck, Shirley J. Sato, Zhengxiang Ge, Thomas E. Clemente, Joe Chappell 2018 University of Kentucky

Engineering Linear, Branched-Chain Triterpene Metabolism In Monocots, Chase Kempinski, Zuodong Jiang, Garrett Zinck, Shirley J. Sato, Zhengxiang Ge, Thomas E. Clemente, Joe Chappell

Department of Agronomy and Horticulture: Faculty Publications

Triterpenes are thirty-carbon compounds derived from the universal five-carbon prenyl precursors isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP). Normally, triterpenes are synthesized via the mevalonate (MVA) pathway operating in the cytoplasm of eukaryotes where DMAPP is condensed with two IPPs to yield farnesyl diphosphate (FPP), catalyzed by FPP synthase (FPS). Squalene synthase (SQS) condenses two molecules of FPP to generate the symmetrical product squalene, the first committed precursor to sterols and most other triterpenes. In the green algae Botryococcus braunii, two FPP molecules can also be condensed in an asymmetric manner yielding the more highly branched triterpene, botryococcene. Botryococcene …


Risks And Opportunities Of Gm Crops: Bt Maize Example, Andrea K. Carzoli, Siddique I. Aboobucker, Leah L. Sandall, Thomas T. Lubberstedt, Walter P. Suza 2018 Iowa State University

Risks And Opportunities Of Gm Crops: Bt Maize Example, Andrea K. Carzoli, Siddique I. Aboobucker, Leah L. Sandall, Thomas T. Lubberstedt, Walter P. Suza

Department of Agronomy and Horticulture: Faculty Publications

The anticipated world population growth emphasizes a need to produce more food on less land. Cutting-edge technologies, including genetic engineering, can help to develop improved crop varieties and protect natural resources. In spite of the potential for genetically-modified (GM) crops to make crop production more efficient, they remain a polarizing issue due to safety concerns. This paper provides an overview of the risk assessment process. The safety of Bacillus thuringiensis (Bt) proteins is used as an example for how risk assessment is applied to GM crops. Risks associated with GM crops have proven to be low to non-existent. Developing countries …


Wildland Fire Science Literacy: Education, Creation, And Application, Devan Allen McGranahan, Carissa L. Wonkka 2018 North Dakota State University

Wildland Fire Science Literacy: Education, Creation, And Application, Devan Allen Mcgranahan, Carissa L. Wonkka

Department of Agronomy and Horticulture: Faculty Publications

Wildland fire science literacy is the capacity for wildland fire professionals to understand and communicate three aspects of wildland fire: (1) the fundamentals of fuels and fire behavior, (2) the concept of fire as an ecological regime, and (3) multiple human dimensions of wildland fire and the socio-ecological elements of fire regimes. Critical to wildland fire science literacy is a robust body of research on wildland fire. Here, we describe how practitioners, researchers, and other professionals can study, create, and apply robust wildland fire science. We begin with learning and suggest that the conventional fire ecology canon include detail on …


Transient Heat Stress During Early Seed Development Primes Germination And Seedling Establishment In Rice, Kevin Begcy, Jaspreet Sandhu, Harkamal Walia 2018 University of Nebraska-Lincoln

Transient Heat Stress During Early Seed Development Primes Germination And Seedling Establishment In Rice, Kevin Begcy, Jaspreet Sandhu, Harkamal Walia

Department of Agronomy and Horticulture: Faculty Publications

Rice yield is highly sensitive to increased temperature. Given the trend of increasing global temperatures, this sensitivity to higher temperatures poses a challenge for achieving global food security. Early seed development in rice is highly sensitive to unfavorable environmental conditions. Heat stress (HS) during this stage decreases seed size and fertility, thus reducing yield. Here, we explore the transgenerational phenotypic consequences of HS during early seed development on seed viability, germination, and establishment. To elucidate the impact of HS on the developmental events in postzygotic rice seeds, we imposed moderate (35°C) and severe (39°C) HS treatments initiated 1 day after …


Maize And Soybean Root Front Velocity And Maximum Depth In Iowa, Usa, Raziel A. Ordóñez, Michael J. Castellano, J. L. Hatfield, M. J. Helmers, Mark A. Licht, Matt Liebman, Ranae Dietzel, Rafael Martinez-Feria, Javed Iqbal, Laila A. Puntel, S. Carolina Córdova, Kaitlin Togliatti, Emily E. Wright, Sotirios V. Archontoulis 2018 Iowa State University

Maize And Soybean Root Front Velocity And Maximum Depth In Iowa, Usa, Raziel A. Ordóñez, Michael J. Castellano, J. L. Hatfield, M. J. Helmers, Mark A. Licht, Matt Liebman, Ranae Dietzel, Rafael Martinez-Feria, Javed Iqbal, Laila A. Puntel, S. Carolina Córdova, Kaitlin Togliatti, Emily E. Wright, Sotirios V. Archontoulis

Department of Agronomy and Horticulture: Faculty Publications

Quantitative measurements of root traits can improve our understanding of how crops respond to soil and weather conditions, but such data are rare. Our objective was to quantify maximum root depth and root front velocity (RFV) for maize (Zea mays) and soybean (Glycine max) crops across a range of growing conditions in the Midwest USA. Two sets of root measurements were taken every 10–15 days: in the crop row (in-row) and between two crop rows (center-row) across six Iowa sites having different management practices such as planting dates and drainage systems, totaling 20 replicated experimental treatments. …


Physiological Evaluation Of Cantaloupe Fruit Using Near-Infrared Spectroscopy, Theerawat Ruenkam 2018 Faculty of Science

Physiological Evaluation Of Cantaloupe Fruit Using Near-Infrared Spectroscopy, Theerawat Ruenkam

Chulalongkorn University Theses and Dissertations (Chula ETD)

Cantaloupe (Cucumis melo L.) is an important fruit for the economy of Thailand. The major problem is the non-uniformity of fruit quality. The objective of this research was to study the feasibility of using near infrared spectroscopy (NIRS) for the non-destructive evaluation of cantaloupe quality. Total of 130 ‘Sunlady’ cantaloupe samples were collected for NIR spectral data by 4 different instruments including FT-NIR (MPA) (800-2500 nm), FQA-NIRGUN (700-1100 nm), NIR spectrometer (model 1, 800-1200 nm) and NIR spectrometer (model 2, 650-1100 nm) and analyzed for quality values such as total soluble solids, firmness, total antioxidant capacity, ascorbic acid and glutathione …


Vascular Plants Of Bear Valley (Colusa County, California), James P. Smith Jr 2018 Humboldt State University

Vascular Plants Of Bear Valley (Colusa County, California), James P. Smith Jr

Botanical Studies

No abstract provided.


California Vascular Plants: Are Some Of Them Still Out There?, James P. Smith Jr 2018 Humboldt State University

California Vascular Plants: Are Some Of Them Still Out There?, James P. Smith Jr

Botanical Studies

No abstract provided.


California Vascular Plants: A Numerical Conspectus At The Family Level, James P. Smith Jr 2018 Humboldt State University

California Vascular Plants: A Numerical Conspectus At The Family Level, James P. Smith Jr

Botanical Studies

No abstract provided.


Checklist Of The Vascular Plants Of The Walker Ridge And Bear Valley Area, Lake And Colusa Counties, James P. Smith Jr. 2018 Humboldt State University

Checklist Of The Vascular Plants Of The Walker Ridge And Bear Valley Area, Lake And Colusa Counties, James P. Smith Jr.

Botanical Studies

No abstract provided.


Vascular Plants Of Cook And Green Pass, Siskiyou County, James P. Smith Jr 2018 Humboldt State University

Vascular Plants Of Cook And Green Pass, Siskiyou County, James P. Smith Jr

Botanical Studies

No abstract provided.


The Ferns, Conifers, And Flowering Plants Of The Arcata Marsh & Wildlife Sanctuary, James P. Smith Jr. 2018 Humboldt State University

The Ferns, Conifers, And Flowering Plants Of The Arcata Marsh & Wildlife Sanctuary, James P. Smith Jr.

Botanical Studies

No abstract provided.


The Herbarium, James P. Smith Jr 2018 Humboldt State University

The Herbarium, James P. Smith Jr

Botanical Studies

No abstract provided.


Albert Spear Hitchcock, James P. Smith Jr 2018 Humboldt State University

Albert Spear Hitchcock, James P. Smith Jr

Botanical Studies

No abstract provided.


Sir Joseph Banks, James P. Smith Jr 2018 Humboldt State University

Sir Joseph Banks, James P. Smith Jr

Botanical Studies

No abstract provided.


Carl Linnaeus: A Timeline, James P. Smith Jr 2018 Humboldt State University

Carl Linnaeus: A Timeline, James P. Smith Jr

Botanical Studies

No abstract provided.


Flowering Phenology And Pollination Biology Of Ceropegia Thailandica Meve And Ceropegia Suddeei Kidyoo, Chayanin Kraithep 2018 Faculty of Science

Flowering Phenology And Pollination Biology Of Ceropegia Thailandica Meve And Ceropegia Suddeei Kidyoo, Chayanin Kraithep

Chulalongkorn University Theses and Dissertations (Chula ETD)

The flowers of the genus Ceropegia have complex structures that involve in pollination mechanism. These structres gynostegium, pollinarium and corona. Moreover, the corolla tube which is inflated at base and the corolla lobes are connate only at tip forming a cage-like structure functions as a trap. When pollinators are attracted to flower, they could be temporarily trapped inside the flower. From previous studies, there are about 18 species in Thailand. Most Thai species have flowers characterized by a long narrow corolla lobe with distinct inflated basal portion. However, some species have a short corolla tube, such as C. thailandica Meve. …


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