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Articles 1 - 17 of 17
Full-Text Articles in Agriculture
Alfalfa Establishment And Management In South Carolina, Liliane Silva, Michael Mrshall, Jeremy Greene, Matias Aguerre
Alfalfa Establishment And Management In South Carolina, Liliane Silva, Michael Mrshall, Jeremy Greene, Matias Aguerre
Livestock and Forages
Alfalfa is a perennial legume with high forage quality that can be used under grazing or hay management. This publication outlines establishment and management recommendations for alfalfa plantings in South Carolina.
Water Requirements For Growth And Survival Of Swietenia Macrophylla And Tabebuia Heterophylla Juvenile Trees In Relation To Water Production Capacity Of Dew Condensers1, Jodelin Seldon, Victor A. Snyder, Eric Harmsen, Skip Van Bloem
Water Requirements For Growth And Survival Of Swietenia Macrophylla And Tabebuia Heterophylla Juvenile Trees In Relation To Water Production Capacity Of Dew Condensers1, Jodelin Seldon, Victor A. Snyder, Eric Harmsen, Skip Van Bloem
Publications
Drought mortality of juvenile trees is a major cause for failure of reforestation projects. Portable devices such as passive radiative dew condensers can often provide 0.15 L/day of water in situ, possibly sufficient for tree survival until roots can access groundwater, allowing self-sustainability. To evaluate growth and survivability of juvenile trees of Tabebuia heterophylla Britton and Swietenia macrophylla King under such low water amounts, juvenile trees received approximately 0.033, 0.067, 0.134, 0.201 and 0.268 L/tree/day, representing fractions (relative evapotranspiration or RET) of 0.125, 0.25, 0.50, 0.75 and 1.00 of the evapotranspiration demand (ETo). The experiment lasted 60 days for S. …
Northern Giant Hornet (Vespa Mandarinia) And Yellow-Legged Hornet (Vespa Velutina), Potential Pests Of Honey Bees, Benjamin Andrew Powell
Northern Giant Hornet (Vespa Mandarinia) And Yellow-Legged Hornet (Vespa Velutina), Potential Pests Of Honey Bees, Benjamin Andrew Powell
Agricultural Education
Exotic hornets present a significant threat to apiculture. Recent introductions of the yellow-legged hornet to Europe and the asian giant hornet to North America have made it critical that regulators, beekeepers and the general public be able to detect and identify these exotic hornets and to understand their biology to minimize the potential impacts to apiculture in South Carolina were they to be introduced.
Detecting And Monitoring Foodborne Illness Outbreaks: Twitter Communications And The 2015 U.S. Salmonella Outbreak Linked To Imported Cucumbers, Yuliya V. Bolotova, Jie Lou, Ilya Safro
Detecting And Monitoring Foodborne Illness Outbreaks: Twitter Communications And The 2015 U.S. Salmonella Outbreak Linked To Imported Cucumbers, Yuliya V. Bolotova, Jie Lou, Ilya Safro
Publications
This research uses Twitter, as a social media device, to track communications related to the 2015 U.S. foodborne illness outbreak linked to Salmonella in imported cucumbers from Mexico. The relevant Twitter data are analyzed in light of the timeline of the official announcements made by the Centers for Disease Control and Prevention (CDC). The largest number of registered tweets is associated with the period immediately following the CDC initial announcement and the official release of the first recall of cucumbers. [JEL: I18, Q13, Q18].
Water For Electricity In The Upper Savannah Basin: Impacts On Freshwater Mussels, Alan Johnson, Snehal Mhatre
Water For Electricity In The Upper Savannah Basin: Impacts On Freshwater Mussels, Alan Johnson, Snehal Mhatre
Graduate Research and Discovery Symposium (GRADS)
The water resources of the Upper Savannah River Basin are subjected to extensive water withdrawals for production of electricity for the region. The use of Savannah River Basin water resources for electricity production and the associated impact on reservoir levels, streamflows, and thermal regimes is in conflict with the requirements of in-stream biota particularly freshwater mussels. The Savannah River Basin contains atleast 26 unionid species, most of which are listed as endangered, threatened, or of special concern at the state level. Populations of these species have experienced significant declines and extirpations in the recent decades. Of these unionid species, brook …
Photosynthetic Characteristics Of Veratrum Californicum In Varied Greenhouse Environments, Jeffrey Adelberg, Youping Sun, Sarah White, David Mann
Photosynthetic Characteristics Of Veratrum Californicum In Varied Greenhouse Environments, Jeffrey Adelberg, Youping Sun, Sarah White, David Mann
Publications
Corn lily or California false hellebore (Veratrum californicum Durand), a perennial species native to the western United States, produces several alkaloid compounds. A derivative of these alkaloid compounds, primarily veratramine and cyclopamine, shows promise as a therapeutic agent for treatment of a variety of tumor types. Here we report the first study of corn lily cultivated in greenhouse. Growth response of corn lily was examined under two light levels (ambient and supplemental), two fertilization types (20 N-4.4 P- 16.6 K Peat-lite special and 15N-2.2P-12.5K CalMag special) at 100-mg·L-1 total nitrogen, and three irrigation cycles [sub-irrigation every day (wet), every third …
Effects Of Cytokinin On Multiplication And Rooting Of Aloe Barbadensis During Micropropagation On Agar And Liquid Medium, Jeffrey Adelberg, Jacqueline Naylor-Adelberg
Effects Of Cytokinin On Multiplication And Rooting Of Aloe Barbadensis During Micropropagation On Agar And Liquid Medium, Jeffrey Adelberg, Jacqueline Naylor-Adelberg
Publications
Aloe barbadensis (syn. Aloe vera) was micropropagated on agar and liquid medium at varied benzyladenine (BA) and meta-topolin (MT) concentrations
(0, 1, 3.2, and 10 μM) for three successive culture cycles and then transferred to a greenhouse for growth. MT induced multiplication at the highest concentration (10 μM) and BA produced the greatest number of plantlets (at 3.2 μM) with optimal multiplication at approximately 6 μM. Liquid medium did not affect multiplication rate when compared with agar, but plants were twice as large from
liquid as compared with those from agar at the time of transfer to the greenhouse. After …
Sucrose, Water And Nutrient Use During State Ii Multiplication Of Two Turmeric Clones (Curcuma Longa L.) In Liquid Medium, Jeffrey Adelberg
Sucrose, Water And Nutrient Use During State Ii Multiplication Of Two Turmeric Clones (Curcuma Longa L.) In Liquid Medium, Jeffrey Adelberg
Publications
Two clones of turmeric (Cucruma longa L.) were assessed nine times during a 28-day culture period in double phosphate MS liquid medium containing 2%, 4% and 6% sucrose. The phase of rapid shoot bud multiplication lasted for 21 days or less, in both clones in all media. The maximum multiplication rate was 3.4× at 20 and 19 days, with 3.9% or 4.7% initial sucrose concentration being optimal for the clones 9-3 and 35-1, respectively. Dry mass increased over the entire culture period and was greatest with 4.8% or at least 6% initial sucrose concentration for the two clones, 9-3 …
Secondary Metabolism Inducing Treatments During In Vitro Development Of Turmeric (Curcuma Longa L.) Rhizomes, Matthew M. Cousins, Jeffrey W. Adelberg, Feng Chen, James Rieck
Secondary Metabolism Inducing Treatments During In Vitro Development Of Turmeric (Curcuma Longa L.) Rhizomes, Matthew M. Cousins, Jeffrey W. Adelberg, Feng Chen, James Rieck
Publications
Turmeric (Curcuma longa L.) plants that were grown in vitro for 17 or 22 weeks as a fed-batch culture in 2.5 L vessels yielded 39 to 43 g and 62 to 70 g of fresh rhizomes per vessel, respectively (95 % confidence interval). The MS liquid medium was maintained at 6 % sucrose through media addition twice during the experiment. Various methods were employed in attempts to increase secondary metabolism. Antioxidant and total phenolics assays were employed to characterize phytochemical activity. A first experiment exposed four clones to phenylalanine and/or methyl jasmonate (MeJa) from week 12 to 17 in …
Short-Term And Long-Term Time Course Studies Of Turmeric (Curcuma Longa L.) Microrhizome Development In Vitro, Jeffrey Adelberg, Matthew M. Cousins
Short-Term And Long-Term Time Course Studies Of Turmeric (Curcuma Longa L.) Microrhizome Development In Vitro, Jeffrey Adelberg, Matthew M. Cousins
Publications
Turmeric (Curcuma longa L.) plantlets were cultured in MS (Murashige and Skoog Physiol Plant 15:473–497, 1962) liquid medium with 6% sucrose. Microrhizome development was observed in the presence of methyl jasmonate (MeJa) (0, 5 and 16 μM) and benzyladenine (BA) (0, 0.32 and 1 μM). Leaf, root, rhizome growth, and sugar use were measured weekly for 6 weeks in small vessels (180 ml) and four times in 23 weeks in larger vessels (2.5 l). MeJa reduced leaf, root, and rhizome biomass. BA had a positive effect on biomass accumulation. Microrhizome mass increased at a linear rate during 6 weeks …
Efficiency In Thin-Film Liquid System For Hosta Micropropagation, Jeffrey Adelberg
Efficiency In Thin-Film Liquid System For Hosta Micropropagation, Jeffrey Adelberg
Publications
Three varieties of Hosta (‘Striptease’, ‘Minuteman’ and ‘Stiletto’) at four densities (40, 80, 120 and 200 explants per litre) were micropropagated on semi-solid agar and a thin-film liquid system with intermittent wetting of plant tissue. The mechanics of wetting by a small wave front required a larger rectangular vessel (11 × 27=297 cm 2) compared to the common cylindrical baby food jar (18 cm 2). Plants multiplied more rapidly in the agitated thin-film system than on agar. Lower plant densities increased rates of multiplication in liquid, but had little or no effect on multiplication rate on agar. Increasing …
In Vitro Storage Of Hosta Micropropagules - Effect Of Media Sucrose On Post-Storage Recovery, Jeffrey Adelberg, Vani Gollagunta, Nihal C. Rajapakse
In Vitro Storage Of Hosta Micropropagules - Effect Of Media Sucrose On Post-Storage Recovery, Jeffrey Adelberg, Vani Gollagunta, Nihal C. Rajapakse
Publications
No abstract provided.
Winter Greenhouse Propagation Of Clematis X Jackmannii With Capillary Surface Material Fibers, Jeffrey Adelberg, Joshua Giordano-Silliman
Winter Greenhouse Propagation Of Clematis X Jackmannii With Capillary Surface Material Fibers, Jeffrey Adelberg, Joshua Giordano-Silliman
Publications
No abstract provided.
A New Synthetic Amphidiploid In Cucumis From A C. Sativus X C. Hystrix F1 Interspecific Hybrid, Jeffrey Adelberg, Jinfeng Chen, Jack E. Staub, Halina Skorupska, Billy Rhodes
A New Synthetic Amphidiploid In Cucumis From A C. Sativus X C. Hystrix F1 Interspecific Hybrid, Jeffrey Adelberg, Jinfeng Chen, Jack E. Staub, Halina Skorupska, Billy Rhodes
Publications
CT. A synthetic amphidiploid was developed through organogenesis in tissue culturefrom an interspecific F1hybrid betweenCucumis sativus L. andC. hystrix Chakr. The resultsfrom flow cytometry indicated that, on average, 7.3% of the regenerants with unique morphology were chromosome-doubled F1hybrids. The 2C DNA content of the original F1hybrid was1.17 pg, and the 4C DNA content was 2.35 pg. Frequency of chromosome doubling between thetwo genotypes used in this study varied considerably.
Mass Handling Of Watermelon Microcuttings, Jeffrey Adelberg, Y Alper, R E. Young, B B. Rhodes
Mass Handling Of Watermelon Microcuttings, Jeffrey Adelberg, Y Alper, R E. Young, B B. Rhodes
Publications
Modifications were made in the configurations of the unitizing, nonselective wire cutters used by Alper et al.(1992) for mass cuttings of Stage II Citrullus lanatus cv. Charlee (watermelon) plant tissue cultures to further enhance productivity. Mounting the cutter in an inverted position over the receiving vessel eliminated time required for filling. This cut-and-dump technique became 4.8 times more productive for the total transfer process than the conventional scalpel and forceps technique when both time and yield of cut segments with visible buds were considered. A concept for growing fewer, larger tissue clusters per vessel in mini-trays with orienting cells and …
Unitized, Nonselective Cutting Of In Vitro Watermelon, Jeff W. Adelberg, Y Alper, R E. Young, B B. Rhodes
Unitized, Nonselective Cutting Of In Vitro Watermelon, Jeff W. Adelberg, Y Alper, R E. Young, B B. Rhodes
Publications
Unitized, nonselective mass cutting of Stage II Citrullus lanatus cv. Charlee (watermelon) plant tissue cultures has been achieved with various configurations and sizes of wire cutter devices. Time studies revealed that the wire cutters increased the productivity of the cutting function over conventional scalpel and forceps by a factor of 14, Total transfer productivity, including the manual functions of removing tissue from an initial culture vessel and filling (sorting and placing cut tissue segments) new vessels, was increased by a factor of 1,8, The square grid-type cutting devices yielded from 48 to 59% as many viable bud clusters per culture …
Approaching Mechanization Of Plant Micropropagation, Jeffrey Adelberg, R E. Young, A Hale, N D. Camper
Approaching Mechanization Of Plant Micropropagation, Jeffrey Adelberg, R E. Young, A Hale, N D. Camper
Publications
Investigations of materials and methods for growing plant tissue in a continual-flow, liquid nutrient medium as an alternative to semisolid agar medium have been made. Enhanced growth of plant tissue on microporous
polypropylene membranes floating on a liquid nutrient has been demonstrated. Moreover, in vitro plantlets on the microporous membrane are free from entanglement with the support matrix and readily available to mechanized
handling. Trained growth of plantlets through polypropylene netting shows potential for mechanization by mass handling (separation, singulation, and transfer) of plant tissue cultures.