Plant Sciences Commons^™

Sorghum And Pearl Millet Improved Seed Value Chains In Zambia: Challenges And Opportunities For Smallholder Farmers, Priscilla Hamukwala, Gelson Tembo, Don Larson, Mark Erbaugh

INTSORMIL Scientific Publications

Sorghum and millet are a very important source of food and farm income for smallholder farmers, which can be enhanced especially if linked to new markets. These two crops have been widely viewed as minor traditional crops in the Zambian food systems. The two crops were displaced by maize in the 1900s with the opening of the copper mines. However, they remain important food crops for semi-arid areas of the country. In recent years, there have also been new market developments requiring farmers to increase productivity and production. Unfortunately significant productivity enhancements are impeded by low access to improved technologies …

Traversing Swanton Road, 2nd Ed., James A. West

Academic, Government & Associated Organizational Research Resources

Situated at the northwest end of Santa Cruz County and occupying circa 30 square miles of sharply contrasted terrain, the Scott Creek Watershed concentrates within its geomorphological boundaries, at least 10-12% of California's flora, both native and introduced. Paradoxically, the use/abuse that the watershed has sustained over the past 140+ years, has not necessarily diminished the biodiversity and perhaps parallels the naturally disruptive but biologically energizing processes (fire, flooding, landslides and erosion), which have also been historically documented for the area for +60 years. This is an early edition of an extensive document by James A. West. Please visit the …

Grain Sorghum Opportunities For The Future, Stephen C. Mason

INTSORMIL Presentations

Contains statistics about sorghum growing in the United States and world wide, with a focus on Nebraska.

Grain sorghum is an important crop worldwide, but has become a minor crop in Nebraska

Largely replaced by maize and soybean as major commodity crops

Small investment in research in both private and public sectors

Yield has increased more slowly for grain sorghum than for other crops

Modern maize hybrids and soybean varieties have increased stress tolerance, thus reducing this advantage of grain sorghum

Management is easier for corn and soybean than for sorghum – particularly weed control

Grain sorghum has lower cost …

Horticulture, Timothy A. Woods

Agricultural Economics Presentations

No abstract provided.

Arkansas Wheat Cultivar Performance Tests 2009-2010, J. T. Kelly, R. G. Miller, R. D. Bond, E. A. Milus, R. K. Bacon

Arkansas Agricultural Experiment Station Research Series

Wheat cultivar performance tests are conducted each year in Arkansas by the Arkansas Agricultural Experiment Station, Department of Crop, Soil and Environmental Sciences. The tests provide information to companies developing cultivars and/or marketing seed within the state and aid the Arkansas Cooperative Extension Service in formulating cultivar recommendations for small-grain producers.

Forage News [2010-10], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Grazing Conference Returning to Kentucky
• KFGC Update
• Pennsylvania to Celebrate Forage Anniversary
• A Novel Endophyte Tall Fescue has been Developed by the University of Kentucky for the Upper Fescue Belt
• Benefits of Rotational Grazing
• Cultivar Preference of Lambs Grazing Forage Chicory in Ohio
• Effects of a Freeze on Forages
• Nitrate Poisoning: A Concern with Dry Weather

Harina De Sorgo Para Uso En La Industria De La Panificación, Laboratorio De Tecnología De Alimentos (San Andrés, El Salvador)

INTSORMIL Scientific Publications

El sorgo o maicillo ha sido cultivado y utilizado en El Salvador por muchos años tanto para el consumo humano como animal. Existen variedades criollas y mejoradas que han sido utilizadas para la produccion de harina y la elaboración de alimentos, obteniendo muy buenos resultados. Con harina de sorgo se pueden elaborar muchos productos alimenticios, ya sea en combinación con harinas de otros cereales (harinas compuestas); o usando harina de sorgo pura, sin mezclas. La industria de la panificacion en El Salvador ya esta utilizando el sorgo para la elaboración de diversos productos tales como pan de dulce y pan …

Chinese Privet: A Biological Invader In Louisiana's Forests, Hallie Dozier, Metha M. Klock

Faculty Publications, Environmental Studies

No abstract provided.

Host Instar Susceptibility And Selection And Interspecific Competition Of Three Introduced Parasitoids Of The Mealybug Paracoccus Marginatus (Hemiptera: Pseudococcidae), Kaushalya G. Amarasekare, Catharine M. Mannion, Nancy D. Epsky

Agricultural and Environmental Sciences Faculty Research

Three previously introduced parasitoids (Acerophagus papayae Noyes and Schauff, Anagyrus loecki Noyes and Menezes, and Pseudleptomastix mexicana Noyes and Schauff [Hymenoptera: Encyrtidae]) of the mealybug Paracoccus marginatus Williams and Granara de Willink (Hemiptera: Pseudococcidae) were studied for their host instar susceptibility and sex ratio, host instar selection, and interspecific competition in the laboratory. All three parasitoids were able to develop in the second instars, third-instar females, and adult females of P. marginatus. No progeny emerged from first-instar mealybugs. The proportion of female emergence was increased with increasing host size. Parasitoids selected their host instars for oviposition when they …

Effects Of Experimental Nitrogen Additions On Plant Diversity In An Old-Growth Tropical Forest, Xiankai Lu, Jiangming Mo, Frank S. Gilliam, Guoyi Zhou, Yunting Fang

Biological Sciences Faculty Research

Response of plant biodiversity to increased availability of nitrogen (N) has been investigated in temperate and boreal forests, which are typically N-limited, but little is known in tropical forests. We examined the effects of artificial N additions on plant diversity (species richness, density and cover) of the understory layer in an N saturated old-growth tropical forest in southern China to test the following hypothesis: N additions decrease plant diversity in N saturated tropical forests primarily from N-mediated changes in soil properties. Experimental additions of N were administered at the following levels from July 2003 to July 2008: no addition (Control); …

Mojave Applied Ecology Notes Fall 2010, Adria Decorte, Sharon Altman, Alex Suazo

Mojave Applied Ecology Notes

Adria DeCorte defense, Mojave desert inventory and monitoring mapping project, effect of burial depth on Brassica tournefortii seeds

Molinos Cti Para Molienda Seca De Granos Y Otros Usos, Laboratorio De Tecnologia De Alimentos (San Andrés, El Salvador)

INTSORMIL Scientific Publications

Shows the Compatible Technology International disc mills used for grinding grain under government programs in in El Salvador.

Nebline, October 2010

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: 4-H Can Help Youth Choose a Career Path

Farm Views

Horticulture

Food & Fitness

Home & Family Living

Environmental Focus

Urban Agriculture

4-H & Youth

Community Focus

Extension Calendar

Nutrition Education Program

Family and Community Education (FCE) Clubs

and other extension news and events

Guano Exploitation In Madagascar, Christina Buliga

Independent Study Project (ISP) Collection

Agriculture in Madagascar continues to remain largely undeveloped. Out of the eighty percent of Malagasy individuals that live in rural areas an overwhelming sixty five percent practice subsistence agriculture. With respect to the country as a whole this means that out of Madagascar's 58.2 million hectares of available land only 5.2 percent (3 million hectares) are farmed. And out of these 3 million hectares only 67% are cultivated permanently and only 11% are fertilized.

While there are several reasons for why Madagascar’s agriculture has remained largely undeveloped and for why Madagascar continues to rely on imported crops to meet its …

Traditional Plant Use Of The Raglay In Cãu Gãy Village, Núi Chúa National Park, Alex Greene

Independent Study Project (ISP) Collection

Members of the Raglay community of Cãu Gãy Village were interviewed to determine the extent and nature of their traditional reliance on plants. This community, located in the buffer zone of Núi Chúa National Park, was found to utilize 64 plant species for a wide variety of uses. Botanical specimens and photographs were used to identify 42 plants to species level, 13 to genus level, and 6 to family level, while 3 remained unidentified. For each plant, the Raglay name, local Vietnamese name, use, specific application, and preparation were documented, as well as any details of ritual or commercial significance. …

Joint Fire Science Program – Lake Mead National Recreation Area Revegetating Burned Arid Lands: Identifying Successful Native Species Using Trait And Competition Analysis: Quarterly Progress Report, Time Period: July 1 — September 30, 2010, Margaret N. Rees

Fire Science

• Article entitled “Competitive Hierarchy of Native Desert Plants with Red Brome (Bromus rubens): Towards Identifying Invasion-Reducing Species" was revised and re-submitted to the Invasive Plant Science and Management journal.
• Final data collection on soils and nursery plots is complete. Data are awaiting analysis.

Intsormil-Centa Generan Nuevas Variedades De Sorgo Para Grano Y Forraje Tipo “Bmr”, René Clará Valencia

INTSORMIL Impacts and Bulletins

Científicos del proyecto INTSORMIL-CENTA con base en el Centro Nacional de Tecnología Agropecuaria y Forestal (CENTA) de El Salvador, han trabajado cinco años para formar variedades de sorgo para grano y forraje de libre polinización que puedan ser mas nutritivas a los animales bovinos. En este sentido se ha incorporado el gen “bmr-12”, enviado por el Dr. Gebisa Ejeta de la Universidad de Purdue, U.S.A., a las variedades comerciales CENTA S-2, CENTA S-3, CENTA RCV y VG 146, al mismo tiempo se han formado nuevas variedades con este mismo gen. El la primera generación, se obtuvieron 76 nuevas …

Collaboration For Improved Soil And Water Management In Eastern And Southern Africa, Charles S. Wortmann

INTSORMIL Presentations

INTSORMIL Technical Focal Areas:

Enhancing productivity and livelihood in marginal areas

Soil and water management

Integrated pest management

Mitigating post-harvest losses

Nutrition and health

Food quality, processing and safety

Broadening market access

Increasing income

Breeding, biotechnology, and biodiversity

Green County Agricultural And Mechanical Association - Greensburg, Kentucky (Mss 335), Manuscripts & Folklife Archives

MSS Finding Aids

Finding aid only for Manuscripts Collection 335. Treasurer’s book (1859-1860) and minute book (1859-1867) of the Green County Agricultural and Mechanical Association, Greensburg, Kentucky.

Empirical Geographic Modeling Of Switchgrass Yields In The United States, Henriette I. Jager, Latha M. Baskaran, Craig C. Brandt, Ethan B. Davis

Dartmouth Scholarship

Switchgrass (Panicum virgatum L.) is a perennial grass native to the United States that has been studied as a sustainable source of biomass fuel. Although many field‐scale studies have examined the potential of this grass as a bioenergy crop, these studies have not been integrated. In this study, we present an empirical model for switchgrass yield and use this model to predict yield for the conterminous United States. We added environmental covariates to assembled yield data from field trials based on geographic location. We developed empirical models based on these data. The resulting empirical models, which account for spatial …

Increased Plant Uptake Of Nitrogen From 15N-Depleted Fertilizer Using Plant Growth-Promoting Rhizobacteria, A. O. Adesemoye, H. A. Torbert, J. W. Kloepper

Department of Plant Pathology: Faculty Publications

Harmful environmental effects resulting from fertilizer use have spurred research into integrated nutrient management strategies which can include the use of specific microorganisms to enhance nutrient use efficiency by plants. Some strains of plant growth-promoting rhizobacteria (PGPR) have been reported to enhance nutrient uptake by plants, but no studies with PGPR have used ¹⁵N isotope techniques to prove that the increased N in plant tissues came from the N applied as fertilizer. The current study was conducted to demonstrate that a model PGPR system can enhance plant uptake of fertilizer N applied to the soil using different rates of …

The Chlorella Variabilis Nc64a Genome Reveals Adaptation To Photosymbiosis, Coevolution With Viruses, And Cryptic Sex, Guillaume Blanc, Garry Duncan, Irina Agarkova, Mark Borodovsky, James Gurnon, Alan Kuo, Erika Lindquist, Susan Lucas, Jasmyn Pangilinan, Juergen Polle, Asaf Salamov, Astrid Terry, Takashi Yamada, David D. Dunigan, Igor V. Grigoriev, Jean-Michel Claverie, James L. Van Etten

Department of Plant Pathology: Faculty Publications

Chlorella variabilis NC64A, a unicellular photosynthetic green alga (Trebouxiophyceae), is an intracellular photobiont of Paramecium bursaria and a model system for studying virus/algal interactions. We sequenced its 46-Mb nuclear genome, revealing an expansion of protein families that could have participated in adaptation to symbiosis. NC64A exhibits variations in GC content across its genome that correlate with global expression level, average intron size, and codon usage bias. Although Chlorella species have been assumed to be asexual and nonmotile, the NC64A genome encodes all the known meiosis-specific proteins and a subset of proteins found in flagella. We hypothesize that Chlorella might have …

Susceptibility Of Isofamilies Of Spodoptera Frugiperda (Lepidoptera: Noctuidae) To Cry1ac And Cry1fa Proteins Of Bacillus Thuringiensis, Carlos A. Blanco, Maribel Portilla, Juan Luis Jurat-Fuentes, Jaime F. Sanchez, Diego Viteri, Paulina Vega-Aquino, Antonio P. Teran-Vargas, Ausencio Azuara-Dominguez, Juan D. Lopez Jr., R. S. Arias, Yu-Cheng Zhu, David Lugo-Barreras, Ryan Jackson

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

The fall armyworm, Spodoptera frugiperda (J. E. Smith), is one of the most important insect pests on the American continent. Its control has relied primarily on multiple applications of insecticides that can amount to 1,000 g of active ingredient per hectare on some of approximately 30 crops the insect damages. The use of genetically engineered crops that express Bacillus thuringiensis (Bt) Berliner toxins, Bt-corn, Zea mays L.; and Bt-cotton, Gossypium hirsutum L.; are other ways to control this insect. However, fall armyworm is one of the Lepidoptera species least susceptible to Bt proteins, and a case of high tolerance to …

Forage News [2010-09], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Lexington Welcomes National Hay Association
• Barren County to Host State Forage Field Day
• Know Your Hay Quality
• Mob Grazing or Ultra High Density Stocking
• New Items on Forage Website
• Grazing Graduates
• Who says "Cats" can't Attend U.K. Grazing School
• It's not too late for N on Grasses
• Choose the Best Forage Variety for Fall Planting
• Potential for High Nitrates

Effects Of Organic And Inorganic Fertilizers On Marigold Growth And Flowering, Guihong Bi, William B. Evans, James M. Spiers, Anthony L. Witcher

Agricultural and Environmental Sciences Faculty Research

Two experiments were conducted to evaluate the growth and flowering responses of greenhouse-grown French marigold (Tagetes patula L. ‘Janie Deep Orange’) to two non-composted broiler chicken litter-based organic fertilizers, 4-2-2 and 3-3-3, and one commonly used synthetic controlled-release fertilizer, 14-14-14. In both experiments, fertilizer 4-2-2 was applied at four rates of 1%, 2%, 4%, and 6% (by volume); 3-3-3 was applied at four rates of 1.34%, 2.67%, 5.34%, and 8.0% (by volume); and 14-14-14 was applied at rates of 0.99, 1.98, 3.96, and 5.94 kg·m−3. In general, substrate containing different rates and types of fertilizers had a pH within the …

Summaries Of Arkansas Cotton Research 2009, Derrick M. Oosterhuis

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

Nebline, September 2010

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Wildlife Rescue Team Helps Orphaned and Injured Wildlife

Farm Views

Horticulture

Food & Fitness

Home & Family Living

Environmental Focus

Urban Agriculture

4-H & Youth

Community Focus

Extension Calendar

Nutrition Education Program

Family and Community Education (FCE) Clubs

and other extension news and events

Ability Of Plectranthus Spp To Re-Green After Nitrogen Deficiency, Jazbaat K. Chahal

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

Nitrogen is the most important nutrient for plant growth and development. This is due to the reason that nitrogen is a key constituent of amino acids, nucleic acids, lipids and chlorophyll. Stress caused by nitrogen deficiency has a large impact on plant growth and development. In most plants, older leaves become chlorotic and eventually fall off if nitrogen stress is not relieved. Chlorophyll concentration is important to determine the nitrogen concentration in a plant as nitrogen is a constituent element of chlorophyll and also of various proteins that are a part of the photosynthetic apparatus. Cytokinins are said to mediate …

Turfgrass Cultural Practices And Insect Pest Management, Diane Alston, Kelly Kopp

All Current Publications

There are a number of insects that can cause aesthetic and economic loss to turfgrass in Utah – in home lawns as well as in athletic fields and on recreational lands. Good turfgrass cultural practices are the primary way to prevent insect infestation and turfgrass damage.

Plant Immunity Directly Or Indirectly Restricts The Injection Of Type Iii Effectors By The Pseudomonas Syringae Type Iii Secretion System, Emerson Crabill, Anna Joe, Anna Block, Jennifer M. Van Rooyen, James R. Alfano

Center for Plant Science Innovation: Faculty and Staff Publications

Plants perceive microorganisms by recognizing microbial molecules known as pathogen-associated molecular patterns (PAMPs) inducing PAMP-triggered immunity (PTI) or by recognizing pathogen effectors inducing effector-triggered immunity (ETI). The hypersensitive response (HR), a programmed cell death response associated with ETI, is known to be inhibited by PTI. Here, we show that PTI-induced HR inhibition is due to direct or indirect restriction of the type III protein secretion system’s (T3SS) ability to inject type III effectors (T3Es). We found that the Pseudomonas syringae T3SS was restricted in its ability to inject a T3E-adenylate cyclase (CyaA) injection reporter into PTI-induced tobacco (Nicotiana tabacum) cells. …