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Articles 1 - 11 of 11
Full-Text Articles in Life Sciences
Efficiency Of Mechanical Harvest For Immature Vegetable Soybean Pods, Tadesse Mebrahtu, Chris Mullins
Efficiency Of Mechanical Harvest For Immature Vegetable Soybean Pods, Tadesse Mebrahtu, Chris Mullins
Virginia Journal of Science
Since soybean (Glycine max [L.] Merr.) is low in saturated fat and active in reducing blood cholesterol, it is gaining interest as a healthy snack food. Direct consumption of vegetable soybeans is very popular in the Orient. However, the cultivars used in Asia are not adapted to U.S. production systems. The objectives of this study were to determine the efficiency of mechanical harvest and to identify vegetable soybean cultivars adapted for a mechanical harvest system. To implement the objectives, four vegetable soybean cultivars were planted in a randomized complete block design at Randolph Research Farm, Virginia State University. The cultivars …
Correlation Of Eastern Wild Turkey Poult:Hen Ratios With Population Indices To Detect Reproductive Density Dependence, Jay D. Mcghee, Jim Berkson
Correlation Of Eastern Wild Turkey Poult:Hen Ratios With Population Indices To Detect Reproductive Density Dependence, Jay D. Mcghee, Jim Berkson
Virginia Journal of Science
Knowledge of how density affects population growth is important for the harvest management of wild turkey. Unfortunately, available time-series are often too short for statistical detection of density dependence. The correlation between wild turkey recruitment and population size was assessed using data from 7 state wildlife agencies, circumventing the problem of short time-series by using multiple datasets. Correlation coefficients were calculated between surveyed poult:hen ratios and harvest-based population indices for 31 geographic or harvest management regions. Estimated correlation coefficients were tested for homogeneity to determine if an average correlation could be calculated. Correlation coefficients for the 29 regions ranged from …
Depauperate Small Mammal Communities In Managed Pine Plantations In Eastern Virginia, James D. Dolan, Robert K. Rose
Depauperate Small Mammal Communities In Managed Pine Plantations In Eastern Virginia, James D. Dolan, Robert K. Rose
Virginia Journal of Science
Loblolly pine (Pinus taeda L.) plantations of four different ages were examined to identify changes in the small mammal community in relation to changes in the vegetational community. Small mammals were evaluated during five seasons using two methods of trapping. Live traps accounted for 65% of captures and seven of nine species, whereas pitfall traps yielded eight species, of which two were not taken with live traps. For both trap types, catch rates averaged less than two per 100 trap-nights, very low even for pine forests. Both abundance and biomass of small mammals declined with increasing stand age, whereas species …
Virginia Junior Academy Of Science Awards, 2007
Virginia Junior Academy Of Science Awards, 2007
Virginia Journal of Science
Virginia Junior Academy of Science Awards Presented During the 66th Annual Meeting at James Madison University, Harrisonburg, Virginia, May 23-25, 2007.
Abstracts Of Papers, 85th Annual Meeting Of The Virginia Academy Of Science, May 24-26, 2007, James Madison University, Harrisonburg Va
Virginia Journal of Science
Full abstracts of the 85th Annual Meeting of the Virginia Academy of Science, May 24-26, 2007, James Madison University, Harrisonburg VA
2007 Vas Meeting Best Student Papers
2007 Vas Meeting Best Student Papers
Virginia Journal of Science
List of award winning student papers by section from the 85th Annual Meeting of the Virginia Academy of Science, May 24-26, 2007, James Madison University, Harrisonburg, VA
Jeffress Research Grant - 2005
Jeffress Research Grant - 2005
Virginia Journal of Science
Seven-page list of winners of the Jeffress Research Grant Awards for 2005.
Jeffress Research Grant Awards - 2006
Jeffress Research Grant Awards - 2006
Virginia Journal of Science
List of winners of the Jeffress Research Grant Awards for 2006.
Trees On K-12 School Campuses In Virginia, Jeffrey L. Kirwan, P. Eric Wiseman, John R. Seiler
Trees On K-12 School Campuses In Virginia, Jeffrey L. Kirwan, P. Eric Wiseman, John R. Seiler
Virginia Journal of Science
Trees and saplings growing on K-12 school campuses were investigated in 105 school districts across Virginia. There were 2812 trees (>12.5 cm stem diameter at 1.4 m above ground level) inventoried across all campuses. The mean and median campus tree population was 27 and 18, respectively. Loblolly pine (Pinus taeda L.) was the most abundant species, accounting for 11% of all inventoried trees. Red maple (Acer rubrum L.) was the most frequently inventoried species, present on 44% of the campuses. Sapling (trees with 2.5-12.5 cm stem diameter at 1.4 m above ground level) populations were similar …
Phytoplankton Productivity In The Tidal Regions Of Four Chesapeake Bay (U.S.A.) Tributaries, Kneeland K. Nesius, Harold G. Marshall, Todd A. Egerton
Phytoplankton Productivity In The Tidal Regions Of Four Chesapeake Bay (U.S.A.) Tributaries, Kneeland K. Nesius, Harold G. Marshall, Todd A. Egerton
Virginia Journal of Science
Monthly and annual phytoplankton productivity rates of four Virginia tidal rivers were determined based on a 12-year monitoring study that included sampling stations from tidal freshwater, oligohaline, and mesohaline regions in these rivers. The mean monthly rates and range at these locations were 5.52 (Dec.) to 175.12 (Aug.) mg C m-3 h-1 for tidal freshwater, 12.21 (Jan.) to 149.90 (May) mg C m-3 h-1 in oligohaline regions, and 16.20 (Jan.) to 151.33 (May) mg C m-3 h-1 for the mesohaline. The estimated mean annual 12 year productivity for the different Virginia river sites in …
Stormwater Influence On Phytoplankton Composition And Dynamics In Lake Joyce, Virginia, Lewis F. Affronti Jr., B. Thomas Duquette
Stormwater Influence On Phytoplankton Composition And Dynamics In Lake Joyce, Virginia, Lewis F. Affronti Jr., B. Thomas Duquette
Virginia Journal of Science
A three year study of Lake Joyce, Virginia revealed relationships between the timing, duration, and amount of stormwater runoff and phytoplankton abundance and composition. Major phytoplankton taxa were identified and cyanophytes dominanted during periods of decreased rainwater input and increased lake water retention times. Increased freshwater input was associated with the growth of a diverse assemblage of both chlorophytes and diatoms. Phytoplankton dynamics as a result of significant rain events (i.e., hurricanes Floyd and Irene, 1999) were documented and specific taxa involved in nuisance algal blooms were identified.