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27,128 full-text articles. Page 6 of 653.

Persistence Of Red Clover (Trifolium Pratense L.) Is Highly Related To Plant Population: Preliminary Studies On Isoflavones That Could Act As Insect Deterrents, Fernando Ortega, Andrés Quiroz, Leonardo Parra, Ana Mutis, Emilio Hormazabal, Muriel Melo 2020 INIA, Chile

Persistence Of Red Clover (Trifolium Pratense L.) Is Highly Related To Plant Population: Preliminary Studies On Isoflavones That Could Act As Insect Deterrents, Fernando Ortega, Andrés Quiroz, Leonardo Parra, Ana Mutis, Emilio Hormazabal, Muriel Melo

International Grassland Congress Proceedings

Red clover (Trifolium pratense L.) is a valuable legume in Chile whose importance is mainly as forage for animal and seed production. Although it is considered as perennial, its production declines after the second year of established due to a complex of multiple biotic and abiotic factors (Taylor and Quesenberry, 1996, Ortega et al., 2014); in Chile this is due mainly to the infestation by the red clover root borer Hylastinus obscurus (Coleoptera: Curculionidae). Currently there is no an efficient control method against this insect. Therefore, breeding cultivars that are less attractive to the root borer and the understanding of ...


Root Architecture And Morphology Of Advanced Synthetic Lines Developed By The Red Clover Breeding Program Of Inia-Chile, Fernando Ortega, Luis Inostroza, Catalina Vasquez, Joel Ibañez, Hernán Acuña 2020 INIA, Chile

Root Architecture And Morphology Of Advanced Synthetic Lines Developed By The Red Clover Breeding Program Of Inia-Chile, Fernando Ortega, Luis Inostroza, Catalina Vasquez, Joel Ibañez, Hernán Acuña

International Grassland Congress Proceedings

Red clover (Trifolium pratense L.) is one of the most important forage legumes in temperate regions of the world. In Chile, it is the only forage species with a breeding program that has been continue over decades and produced commercial cultivars. Because of the good seed and forage production potential, red clover cultivars released by the INIA breeding program (INIA-BP) are commercialized both in Chile and abroad. The main limitation of the species worldwide is its low persistence, determined by the high plant mortality due to the deterioration of the main root and crown (Ortega et al., 2014). In the ...


Plant Growth Regulators For Mitigating Water Stress In Cowpea, Syama S. Menon, K. E. Savithri 2020 Kerala Agricultural University, India

Plant Growth Regulators For Mitigating Water Stress In Cowpea, Syama S. Menon, K. E. Savithri

International Grassland Congress Proceedings

Water is becoming a scarce commodity for irrigation especially under the present changing climatic scenario. Water stress hampers important physiological and biochemical mechanisms leading to reduction in plant growth and yield. Studies revealed that the exogenous application of plant hormones has been found to alleviate the negative effects of various abiotic stresses. Cowpea, being a non-season bound crop, can be grown throughout the year and it performs well during summer season under irrigation, but water scarcity limits its area under cultivation. However, limited research works have been conducted to investigate the potential benefits of exogenous application of plant growth regulators ...


Zenneck Waves In Decision Agriculture: An Empirical Verification And Application In Em-Based Underground Wireless Power Transfer, Usman Raza, Abdul Salam 2020 Purdue University

Zenneck Waves In Decision Agriculture: An Empirical Verification And Application In Em-Based Underground Wireless Power Transfer, Usman Raza, Abdul Salam

Faculty Publications

In this article, the results of experiments for the observation of Zenneck surface waves in sub GHz frequency range using dipole antennas are presented. Experiments are conducted over three different soils for communications distances of up to 1 m. This empirical analysis confirms the existence of Zenneck waves over the soil surface. Through the power delay profile (PDP) analysis, it has been shown that other subsurface components exhibit rapid decay as compared to the Zenneck waves. A potential application of the Zenneck waves for energy transmission in the area of decision agriculture is explored. Accordingly, a novel wireless through-the-soil power ...


Iron-Mediated Organic Matter Decomposition In Humid Soils Can Counteract Protection, Chunmei Chen, Steven J. Hall, Elizabeth Coward, Aaron Thompson 2020 Tianjin University

Iron-Mediated Organic Matter Decomposition In Humid Soils Can Counteract Protection, Chunmei Chen, Steven J. Hall, Elizabeth Coward, Aaron Thompson

Ecology, Evolution and Organismal Biology Publications

Soil organic matter (SOM) is correlated with reactive iron (Fe) in humid soils, but Fe also promotes SOM decomposition when oxygen (O2) becomes limited. Here we quantify Fe-mediated OM protection vs. decomposition by adding 13C dissolved organic matter (DOM) and 57FeII to soil slurries incubated under static or fluctuating O2. We find Fe uniformly protects OM only under static oxic conditions, and only when Fe and DOM are added together: de novo reactive FeIII phases suppress DOM and SOM mineralization by 35 and 47%, respectively. Conversely, adding 57FeII alone increases SOM mineralization by 8% following oxidation to 57FeIII. Under O2 ...


Evaluation On Mengnong Clover No.1--China's First Variety Of Caucasian Clover (Trifolium Ambiguum Bieb.), Mingjiu Wang, Ying Zhou, Lijun He, Fan Huang, Jingli He 2020 Inner Mongolia Agricultural University, China

Evaluation On Mengnong Clover No.1--China's First Variety Of Caucasian Clover (Trifolium Ambiguum Bieb.), Mingjiu Wang, Ying Zhou, Lijun He, Fan Huang, Jingli He

International Grassland Congress Proceedings

Many research reports about Caucasian clover (Trifolium ambiguum Bieb.) could be retrieved. A breeding research for Caucasian clover was started since 1996 in Inner Mongolia Agricultural University, China. The goal was to breed new varieties with strong cold resistance and drought, salt tolerance, as well as quick regenerating capacity after use. By December 2012, China's first new variety of Caucasian clover - "Mengnong clover No.1" (Mc No.1) was successfully registered by Forage Variety Approval Committee of Inner Mongolia Autonomous Region. Through a comparison test with red clover (T. pratense ) and white clover (T. repens), Mc No.1 showed ...


Biochemical Evaluation Of Forage Sorghum For Stress Tolerance, Manoj Kumar Srivastava, Chandan Kumar Gupta 2020 Indian Grassland and Fodder Research Institute, India

Biochemical Evaluation Of Forage Sorghum For Stress Tolerance, Manoj Kumar Srivastava, Chandan Kumar Gupta

International Grassland Congress Proceedings

Abiotic stresses are the major limiting factors in plant growth. With continuous increment in scarcity of water and increased salinization of soil and water, it is estimated that more than 50% of all arable lands will be affected by salinity and drought by 2050. Plants are often exposed to both, soil and atmospheric water deficit during their life cycle. The frequency and intensity of droughts is increasing as a result of global climate change. Understanding how plants respond to water stress is thus crucial for the estimation of impacts of climate change on crop productivity and ecosystem functioning. The knowledge ...


Development Of A Reference Set Of Sorghum (Sorghum Spp.) For Cyanogenic Potential (Hcn-P) And Evaluating Their Fodder Yield Traits, B. J. Karthikeyan, C. Babu, A. John Joel, S. Ganeshram 2020 Tamil Nadu Agricultural University, India

Development Of A Reference Set Of Sorghum (Sorghum Spp.) For Cyanogenic Potential (Hcn-P) And Evaluating Their Fodder Yield Traits, B. J. Karthikeyan, C. Babu, A. John Joel, S. Ganeshram

International Grassland Congress Proceedings

Sorghum (Sorghum bicolor (L.) Moench) the fifth most important cereal crop of the world is also valued for its fodder and stover. In India, fodder sorghum is grown in 2.6 mha mainly in western UP, Haryana, Punjab, Rajasthan and Delhi and fulfils over two-third of the fodder demand.

Sorghum has four desirable qualities viz., high dry matter yield, light, water and nitrogen use efficiency. Sorghum stover is valued over all other sources of fodder. Thus, sorghum is used as fodder to the domestic animals for its better performance. The projected demand for fodder in India in 2020 is expected ...


Assessment Of Fodder Production Potential Of Lucerne (Medicago Sativa L.) Genotypes For Sustainable Live Stock Production, T. Shashikala, M. Shanti, R. Suseela, M. Anuradha, R. V. T. Balazzii Naaiik, V. Chandrika 2020 Professor Jayashankar Telangana State Agricultural University, India

Assessment Of Fodder Production Potential Of Lucerne (Medicago Sativa L.) Genotypes For Sustainable Live Stock Production, T. Shashikala, M. Shanti, R. Suseela, M. Anuradha, R. V. T. Balazzii Naaiik, V. Chandrika

International Grassland Congress Proceedings

Lucerne (Medicago sativa L.) is a temperate perennial legume capable of producing high quality forage throughout the year. The plant also contains sufficient concentrations of vitamins and most minerals for all classes of livestock. Livestock production can be substantially increased by using lucerne. It is a persistent, productive as well as heat and drought resistant crop which provides better and wet seasons. It tolerates short spell of drought but not water logging and high humidity in the rainy season. Cultivated lucerne is an out crossing auto- tetraploid plant developed by combining different M. sativa and M. falcate germplasm sources in ...


Study On Protein Related To Heat Tolerance Of Medicago Sativa L. 'Deqin', Yan Zhao, Yufen Bi 2020 Yunnan Agricultural University, China

Study On Protein Related To Heat Tolerance Of Medicago Sativa L. 'Deqin', Yan Zhao, Yufen Bi

International Grassland Congress Proceedings

High temperature over the growth threshold of plants can cause their metabolic and developmental changes, and consequently bring about their slow growth (Lobell et al., 2008). Alfalfa (Medicago sativa L.) is a high-quality legume suitable for growing in semi-arid areas. Its poor thermo tolerance restricts its introduction and popularization in southern China and transitional zone. Fall dormancy is an important indicator for planting planning of alfalfa (Barnes et al., 1977. Existing research shows that alfalfa varieties with a higher fall dormancy rate (FDR) have a stronger heat resistance (Lu, 1998). M. sativa L. ‘Deqin’ (hereinafter referred to as ‘Deqin’) is ...


Shifting Public Perception: Climate Change Means Living With Fire And Smoke, Robert Froembling 2020 Seattle University School of Law

Shifting Public Perception: Climate Change Means Living With Fire And Smoke, Robert Froembling

Seattle Journal of Technology, Environmental & Innovation Law

The urgency to prepare for the climate crisis has never been greater. We are currently living in the sixth mass extinction and the effects are only going to accelerate. We will inherit more wildfires, larger wildfires, and more frequent wildfires.

This piece is not meant to stoke fear in its readers or be depressing, but to shift public perception on what our future holds by evaluating the laws and science presented to us. This piece will look at regional and federal regulations and assess the increased rate of forest fires and the grave public health concerns from stagnant smoke specifically ...


Drought Tolerance Screening Of Avena Species By Inducing Water Stress Conditions At Vegetative And Flowering Stage, Harish C. Pandey 2020 Indian Grassland and Fodder Research Institute, India

Drought Tolerance Screening Of Avena Species By Inducing Water Stress Conditions At Vegetative And Flowering Stage, Harish C. Pandey

International Grassland Congress Proceedings

Oats is the most important cereal fodder crop grown in the winter season in the north western, central India and now extending to the eastern region. In India it is grown in Punjab, Haryana, Jammu & Kashmir, Himachal Pradesh, Uttar Pradesh, Madhya Pradesh, Rajasthan, Maharashtra and Bengal. Oat is a high yielding crop and the average yield varies from 45-55 ton of green fodder per hectare. Oat is ranked sixth in world cereal production statistics following wheat, maize, rice, barley and sorghum. Mostly oats are grown as green fodder and grain to be used as a feed for cattle. Since water ...


Mfc-09-1: A New Forage Cowpea (Vigna Unguiculata (L.) Walp) Variety For South Zone Of India, H. C. Lohithaswa, M. R. Krishnappa, B. G. Shekara, N. M. Chikkarugi, N. Manasa 2020 College of Agriculture, V.C. Farm, Mandya, India

Mfc-09-1: A New Forage Cowpea (Vigna Unguiculata (L.) Walp) Variety For South Zone Of India, H. C. Lohithaswa, M. R. Krishnappa, B. G. Shekara, N. M. Chikkarugi, N. Manasa

International Grassland Congress Proceedings

Cowpea (Vigna unguiculata (L.) Walp) is a leguminous crop grown throughout West Africa, often in association with pearl millet and sorghum. Cowpea is well adapted to the harsh growing conditions, including low soil fertility, high temperatures, and drought. Cowpea can fix atmospheric nitrogen to improve soil fertility and cropping system productivity. Additionally, farmers feed cowpea fodder to livestock to increase income, and collect the manure produced for use in their fields thereby reduces farmers’ reliance on commercial fertilizers and sustains soil fertility. Previous studies with cowpea indicated that this legume improves soil fertility and enhances the intake and utilization of ...


Spectral Reflectance Indices And Their Relationship With Dry Mater Production In An Association Mapping Population Of White Clover, Luis Inostroza, Hernán Acuña, Catalina Vasquez, Joel Ibañez 2020 INIA, Chile

Spectral Reflectance Indices And Their Relationship With Dry Mater Production In An Association Mapping Population Of White Clover, Luis Inostroza, Hernán Acuña, Catalina Vasquez, Joel Ibañez

International Grassland Congress Proceedings

Increase yield and yield-stability under abiotic stress conditions (cold, drought, among others) is a global challenge in the breeding of perennial forage species, due to the new climatic scenarios imposed by the global changes. The modern breeding offering tools that allow for manipulating the genotype/phenotype relationship (association mapping analysis) and to accelerate the genetic gain rates for traits with low heritability and high genotype x environment interaction. The next-generation sequencing methodologies allow for characterizing, in short time period and low cost, complex genomes as the white clover. Nowadays, modern breeding is demanding high-throughput phenotyping methodologies that allows for characterizing ...


Testing For Magmatic Co2 Degassing Above The North Appalachian Anomaly, Arianna Gaffney, Sara Mana, James Muirhead, Tobias Fischer 2020 Salem State University

Testing For Magmatic Co2 Degassing Above The North Appalachian Anomaly, Arianna Gaffney, Sara Mana, James Muirhead, Tobias Fischer

Research Day

The Northern Appalachian Anomaly is a thermal anomaly inferred from shear wave velocities beneath New England and interpreted as a mantle plume. Possible evidence of magmatism is investigated here by analyzing soil CO2 flux emissions in areas surrounding regional springs in New York, Massachusetts, New Hampshire and Vermont. To test the presence of magmatism at depth, we measured the flux of diffusely degassing soil CO2 using an EGM-5 portable CO2 gas analyzer. We hypothesize that magmatic CO2, if present, will produce a CO2 degassing signature distinguishable from a shallow biogenic CO2 source. Samples were taken in areas with springs because ...


Using The Extrusive Volcanic Features Of Mt. Marsabit, Kenya To Identify Regional Tectonic Stress, Cora Van Hazinga, James Muirhead, Sara Mana 2020 Salem State University

Using The Extrusive Volcanic Features Of Mt. Marsabit, Kenya To Identify Regional Tectonic Stress, Cora Van Hazinga, James Muirhead, Sara Mana

Research Day

Extrusive volcanic features like vents, craters, and cones can produce alignments and other linear structures that indicate the orientations of feeder dikes and regional tectonic stresses. These dikes form parallel to the maximum compressional stress (σ1) and perpendicular to minimum compressive stress (σ3), and/or exploit preexisting planes of weakness. Volcanic constructs fed by these magmatic intrusions are therefore indicators of tectonic stress directions and subsurface structural fabrics, which can be deduced through detailed mapping and assessment of the spacing, shapes, and linear arrays of these volcanic features.

Mt Marsabit (2.32°N, 37.97°E) is a massive 6 ...


Investigation Of The Volcanics Rocks On Marblehead Neck Through Petrographic, Geochemical, And Field Analyses, Rebecca Wright, Lindley Hanson, Erkan Toraman 2020 Salem State University

Investigation Of The Volcanics Rocks On Marblehead Neck Through Petrographic, Geochemical, And Field Analyses, Rebecca Wright, Lindley Hanson, Erkan Toraman

Research Day

Marblehead Neck is a rocky island within the Dedham-Milford zone in northeastern Massachusetts and is separated by the younger Late Silurian Salem Gabbro-Diorite on the adjacent mainland of Marblehead by a fault of unknown motion. Although shown on the 1983 bedrock map of MA, to be underlain by the Late Proterozoic Dedham Granodiorite and Lynn Volcanics, attempts to date and definitively correlate these rocks have been unsuccessful. This study focuses on confirming the identity of the volcanics and correlating to local lithologies(Middlesex Fells Complex, Lynn-Mattapan Volcanic Complex, Newbury Volcanics, and extrusives of the Cape Ann Granite) through field mapping ...


Modal, Textural Analysis And Geochemical Signature Of Intrusive Igneous Rocks In A Mingling Environment At Salem Willows, Ma, Klementina Mato, Sara Mana 2020 Salem State University

Modal, Textural Analysis And Geochemical Signature Of Intrusive Igneous Rocks In A Mingling Environment At Salem Willows, Ma, Klementina Mato, Sara Mana

Research Day

This study focuses on the variation of mode, texture and geochemical signature of heterogeneous igneous intrusive rocks found at the contact between felsic and mafic melts intruded within the West Avalon terrane at Salem Willows, Massachusetts. Here, the mafic unit is generally interpreted as the Salem Gabbro-Diorite (~424 Ma) while the felsic unit is commonly assigned to the Beverly Syenite (~425 Ma).

A felsic sample and two mafic samples were selected to represent extreme examples of the various composition and texture observed along the outcrop. The samples were analyzed with a petrographic microscope and for whole rock geochemistry. Grain size ...


Application Of Xrf To The Correlation Of Colonial Bricks To A Local Clay Deposit In Southwestern New Hampshire, Emily Doyle, Douglas Allen, Lindley Hanson 2020 Salem State University

Application Of Xrf To The Correlation Of Colonial Bricks To A Local Clay Deposit In Southwestern New Hampshire, Emily Doyle, Douglas Allen, Lindley Hanson

Research Day

Handmade, colonial bricks are eroding from a stream bank along the Cold River, South Acworth, NH. Bricks were regularly made close to local sources. There are two potential sources: glacial lake clays from the Cold River Valley and glacial lake clays further downstream in the Connecticut River Valley. The predicted source is a varved clay deposit 100m upstream. A sample of this clay deposit was collected along with two bricks for trace element analysis using XRF spectroscopy. Determination of the mineralogy was attempted using a petrographic microscope. However, minerals in the clay-fired matrix were too fine-grained to be identified.

Observed ...


Detailed Records Of Ird Input From Central North Atlantic Sediment Core Vm28-89 During The Last Glacial Cycle (Marine Isotope Stages 4-2), Adam Surette 2020 Salem State University

Detailed Records Of Ird Input From Central North Atlantic Sediment Core Vm28-89 During The Last Glacial Cycle (Marine Isotope Stages 4-2), Adam Surette

Research Day

High resolution records from North Atlantic deep-sea sediment have been instrumental in documenting millennial-scale climate variations during the last glacial cycle (Marine Isotope Stages (MIS) 4 to 1) including variations of Ice-Rafted Detritus (IRD) concentrations related to massive iceberg discharges from glacial continental ice sheets. We have sampled core VM28-89, located within the Ruddiman IRD Belt in the central North Atlantic at 1 cm intervals and produced detailed records of %IRD ((number of lithic grains >150μm / (number of lithic grains >150μm + number of Planktic foraminifers >150μm)) x 100); lithic grains, >150μm per gram of sediment (lithics/gram); planktic foraminifers, >150μm ...


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