Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 54 for “"seedling survival"”.
-
ASSESSMENT OF WHITEBARK PINE SEEDLING SURVIVAL FOR ROCKY MOUNTAIN PLANTINGS
… efforts include the planting of whitebark pine seedlings and over 200,000 seedlings have been planted on National Forest, BLM and National Park service lands. In this Rocky Mountain (RM) study, select whitebark pine plantations were surveyed and seedling survival rates and ecological data …
-
ASSESSMENT OF WHITEBARK PINE SEEDLING SURVIVAL FOR ROCKY MOUNTAIN PLANTINGS
… efforts include the planting of whitebark pine seedlings and over 200,000 seedlings have been planted on National Forest, BLM and National Park service lands. In this Rocky Mountain (RM) study, select whitebark pine plantations were surveyed and seedling survival rates and ecological data …
-
Pine Seedling Survival and Growth Related to Moisture Retention of Eight Texas Forest Soils
… showed that loblolly pine (Pinus taeda L.) seedling survival under severe drought and height growth under favorable and unfavorable moisture conditions were related to moisture retention values of eight East Texas soil types. Soil moisture retention constants nearer to field capacity …
-
Evaluating Tree Seedling Survival and Growth in a Bottomland Old-field Site: Implications for Ecological Restoration
In order to assess the enhancement of seedling survival and growth during drought conditions, five-hundred bare-root seedlings each of Shumard oak (Quercus shumardii Buckl.) and green ash (Fraxinus pennsylvanica Marsh.) were planted each with four soil amendments at a Wildlife Management Area in …
-
The effects of different concentrations of phosphite on ectomycorrhiza formation by Pisolithus tinctorius in Castanea dentata
… at high doses. Container-grown chestnut seedlings were treated with six phosphite solutions ranging from 0.0g/l to 12g/l both with and without a spore inoculation of the ectomycorrhizal fungus Pisolithus tinctorius. Seedling survival, height, root collar diameter, and ectomycorrhizal …
-
Evaluating Restoration Potential of an Endangered Legume, Baptisia Arachnifera: Shade & Litter Effects on Early Life Stages
… litter on Baptisia arachnifera, I planted 320 seedlings into a 2x2 factorial shade and litter experiment within the natural range of the species. Another 480 seedlings were planted across 12 sites within three habitat types: four replicates for each of two types of pine plantations and …
-
Slash Mulching and Incorporation as Mechanical Site Preparation for Pine Plantation Establishment and Subsequent Effects on Soil Moisture and Site Hydrology
… data was analyzed periodically for one year. Seedling survival and height data were analyzed after one growing season. The treatments had little effect on soil physical properties, site hydrology, soil water nutrients, or seedling survival on the wet flat study site. Bedding in general …
-
PATTERNS OF SEEDFALL AND SEEDLING ESTABLISHMENT IN AN EAST TEXAS RIVER FLOODPLAIN FOREST: THE CONTRIBUTION OF SEEDLING DYNAMICS TO SPECIES COEXISTENCE (PLANT DEMOGRAPHY, DISPERSAL, TREE REGENERATION, SURVIVORSHIP, MORTALITY)
… and temporal patterns of seed deposition, seedling appearance, survivorship, and growth in an East Texas river floodplain forest from 1980 through 1984, and estimated the importance of several factors including flooding, drought, shading, insect herbivory, and fungal attack in causing …
-
Persistence potential of Great Basin high-elevation conifers under novel climates and disturbance regimes
… pines of the Great Basin, I evaluate seedling success across a range of establishment conditions to assess the potential for ongoing natural regeneration and future reforestation interventions. Using observational and experimental approaches, I 1) characterized the natural regeneration …
-
Soil productivity model to assess forest site quality on reclaimed surface mines
… reforestation success is based solely on tree-seedling survival. This method is an estimator of stand density and not an indication of site productivity. There exists a need to evaluate mine soils based on their capability of growing merchantable timber. This model would aid the reclamation …
-
Root Rot Pathogens of Wheat in South Dakota and Their Affect on Seed Germination and Seedling Blight in Spring Wheat Cultivars
… root pathogens that can affect seed germination, seedling establishment and impact crop productivity. A survey was conducted in the year 2014 and 2015 to study the distribution and the prevalence of root rot pathogens in South Dakota. Out of 31 and eight roots samples collected in 2014 and 2015, …
-
Management Strategies for Pitch Canker Infected Año Nuevo Stands of Monterey Pine
… Swanton Pacific Ranch in Davenport, California. Seedling survival and growth averages were used to evaluate the impact of the variables of gap size (0.20-hectare, 0.10-hectare, and 0.05-hectare), site-preparation treatment (pile and burn, lop and scatter), and parent tree (13 local seed sources). …
-
The Influence of Fluvial Geomorphic Processes on Spatial Patterns of Forest Primary Succession
… forest primary succession. By mapping trees and seedlings I determined that common canopy species in the first stage of succession were located predictably along either an upstream or downstream segment of each point bar in association with elevation, a correlate to hydroperiod. I conducted a …
-
Effects of Soil Fungi on Tree Seedling Establishment in a Southeastern Coastal Plain Forest
… of fungi and overstory composition on tree seedling survival and growth were investigated in closed canopy upland forests in the coastal plain of South Carolina. Seedlings of Quercus alba, Cornus florida and Pinus taeda were planted in the understory of two forest types -naturally …
-
Comparing the effects of two types of Mulches on soil properties and the performance of selected woody species on a degraded land in Kunene region, Namibia
… and pH as well as the cumulative stem length, seedling survival, and leaf chlorophyll content of the selected species (Faidherbia albida, Catophractes alexandri, Vachellia erioloba, and Senegalia galpinii) during three watering periods (once-daily, twice-weekly and once-weekly). A 5 x 5 block …
-
Mitigation of harvesting disturbances on a forested wetland in the South Carolina lower coastal plain
… soil properties and can reduce subsequent pine seedling survival and growth. Site preparation treatments such as bedding, disking, and fertilization are often employed on harvested sites to mitigate these impacts; however, their effectiveness has not been fully documented. Moreover, a …
-
EVALUATING MINE SOIL PREPARED BY SCRAPER PANS FOR HERBACEOUS PLANTS AND PINE SEEDLINGS AT AN EAST TEXAS LIGNITE SURFACE MINE
… for loblolly pine (<em>Pinus taeda </em>L.) tree seedlings in October 2016.</p> <p>Aboveground biomass production of the winter cover crop was highest on the ripped treatments. The untilled control resulted in the lowest herbaceous establishment and growth. Loblolly pine tree seedling survival …
-
Demography of the Cabbage Tree Palm, Livistona australis
… concerning seed production and germination, seedling establishment and survival, time taken to reach reproductive maturity, longevity and population structure of the species. Seed survival, germination and seedling establishment was studied at two sites, one mainland location and one on a …
-
Bedding as a Factor in the Survival and Total Height of Two Year Old Planted Loblolly Pine Seedlings in East Texas
… site preparation on the total height and survival of two year old loblolly pine (Pinus taeda, L.) seedlings planted on bottomland and upland sites. Forty row (or lineal) plots 100 feet long were established on machine planted areas on bedded and unbedded, bottomland and upland sites. Plot …
-
Seed Dispersal by Fall Migrant Frugivorous Birds in an East-Central Illinois Woodland (Treefall Gap)
… post-foraging behavior, and seed germination and seedling success for several species of bird-dispersed plants in an east-central Illinois deciduous woodland. Using seed traps and a combination of natural and artificial fruit displays, I found that small seeds were dispersed by birds farther, on …
Page 1 of 3