Dissertations / Theses on the topic 'Seedling establishment'
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Kappala, Saritha. "Seedling establishment on Oryza sativa L." Thesis, University of Liverpool, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.540049.
Full textMcKimmie, Tim, and Albert Dobrenz. "Salt Tolerance During Seedling Establishment in Alfalfa." College of Agriculture, University of Arizona (Tucson, AZ), 1987. http://hdl.handle.net/10150/203790.
Full textJernigan, Marcus B., Mitchel P. McClaran, Sharon H. Biedenbender, and Jeffrey S. Fehmi. "Uprooted buffelgrass thatch reduces buffelgrass seedling establishment." TAYLOR & FRANCIS INC, 2016. http://hdl.handle.net/10150/616972.
Full textGanade, Gislene Da Silva. "Seedling establishment in Amazon rain forest and old-fields." Thesis, Imperial College London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339196.
Full textBaumer, Marilyn Cabrini. "Tree Seedling Establishment Under the Native Shrub, Asimina Triloba." Wright State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=wright1183587955.
Full textBotha, Susan. "The influence of rainfall variability on savanna tree seedling establishment." Master's thesis, University of Cape Town, 2006. http://hdl.handle.net/11427/6238.
Full textMy thesis investigates the rainfall requirements necessary for tree seedling survival of different savanna species in the first year of growth. Results from a field drought experiment showed that dry season survival for seedlings of Acacia nigrescens and Philenaptera vialacea was not related to wet season length. Instead mortality was highest immediately after germination despite irrigation to minimize dry spells. Furthermore there was no relationship between seedling size and the length of the dry spell seedlings of Acacia nigrescens and Philenaptera vialacea grown in basalt clay in the greenhouse, could survive. This was in contrast to seedlings of Scleracarya birrea and Terminalia sericea grown in granite sand, where number of dry days survived increased with number of growth days received. There was no significant differences in rainfall variability (t-test: tL III = 1.56, P = 0.121, F-ratio = 1.13) between a semi-arid (Satara) and semi-mesic (Pretoriuskop) site within the Kruger National Park despite significant differences in rainfall totals (t-test: tl, III = 4.40, P < 0.000, F-ratio 3.41). Results from a soil-water model show that seedling recruitment can occur at least twice a decade in the Satara area, which should be frequent enough to allow a transition to a woodland state over time. These results suggest that a mechanism other than the effect of rainfall variability on seedling establishment is required to explain the co-existence of trees and grasses at Satara. The lack of field germination, the absence of a seed bank and the germination of added seed at the field experiment site after rainfall emphasizes seed limitation as an important bottleneck at Satara. Higher herbivore biomass at Satara compared to Pretoriuskop may limit seedling establishment opportunities by destroying seed and seedlings of tree species.
Lindén, Elin. "The development of established shrub seedlings in persistent historical reindeer milking grounds." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-98888.
Full textRuhland, Beverlee M. "Morphological aspects of seedling establishment in four temperate region Phorandendron spp." PDXScholar, 1986. https://pdxscholar.library.pdx.edu/open_access_etds/3702.
Full textCarroll, Charlotte Elizabeth Ella. "The importance of aquaporins in Arabidopsis thaliana germination and seedling establishment." Thesis, University of Warwick, 2014. http://wrap.warwick.ac.uk/66471/.
Full textPlenzler, Michael A. "Seedling Recruitment and Establishment of Lupinus perennis in a Mixed-Management Landscape." Bowling Green State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1214238925.
Full textDonath, Tobias W. [Verfasser]. "Effects of ground cover on seedling emergence and establishment / Tobias W. Donath." Gießen : Universitätsbibliothek, 2013. http://d-nb.info/1065184263/34.
Full textChambers, Jeanne C. "Disturbed Alpine Ecosystems: Seedling Establishment of Early and Late Seral Dominant Species." DigitalCommons@USU, 1987. https://digitalcommons.usu.edu/etd/6370.
Full textSodja, Eric P. "Effects of Soil-Borne Pathogens on Seedling Establishment Patterns in Forest Systems." DigitalCommons@USU, 2019. https://digitalcommons.usu.edu/etd/7703.
Full textYe, Nenghui. "Stress perception and ABA signaling in rice seed germination and seedling establishment." HKBU Institutional Repository, 2011. https://repository.hkbu.edu.hk/etd_ra/1305.
Full textNorberg, Gisela. "Steam treatment of forest ground vegetation to improve tree seedling establishment and growth /." Umeå : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2000. http://epsilon.slu.se/avh/2000/91-576-6054-9.pdf.
Full textLönnberg, Karin. "Effects of seed size and habitat on recruitment patterns in grassland and forest plants." Doctoral thesis, Stockholms universitet, Botaniska institutionen, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-82384.
Full textAt the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 3: Manuscript. Paper 4: Accepted.
Stomph, Tjeerd Jan. "Seedling establishment in pearl millet (Pennisetum glaucum (L.) R.Br.) : the influence of genotype, physiological seed quality, soil temperature and soil water." Thesis, University of Reading, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.276632.
Full textMoore, Patrick Terrence. "Seedling establishment guidelines for the reintroduction of American chestnut in the central hardwood region /." Available to subscribers only, 2006. http://proquest.umi.com/pqdweb?did=1136089631&sid=14&Fmt=2&clientId=1509&RQT=309&VName=PQD.
Full textPeterson, Jennifer Mcclain. "Ecological interactions influencing Avicennia germinans propagule dispersal and seedling establishment at mangrove-saltmarsh boundaries." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4562.
Full textWenk, Evelyn Susannah. "Effects of vegetation structure on fire behavior and wiregrass seedling establishment in xeric sandhills." Connect to this title online, 2009. http://etd.lib.clemson.edu/documents/1252423837/.
Full textWest, Lee. "Effects of Soil Fungi on Tree Seedling Establishment in a Southeastern Coastal Plain Forest." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/46180.
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Lett, Signe. "Mosses as mediators of climate change : implications for tree seedling establishment in the tundra." Doctoral thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-130942.
Full textCohen, Susan Alese. "Regenerating Longleaf Pine on Hydric Soils - Short-Term Effects on Soil Properties and Seedling Establishment." NCSU, 2008. http://www.lib.ncsu.edu/theses/available/etd-04282008-191226/.
Full textWoods, Steven Richard. "Woody plant proliferation in desert grasslands: perspectives from roots and ranchers." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/321001.
Full textWoods, Natasha Nicole. "The Relative Importance of Abiotic and Biotic Factors for Seedling Establishment in the Colorado Desert, CA." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1429882344.
Full textSalazar, Ana. "Seed Dynamics and Seedling Establishment of Woody Species in the Tropical Savannas of Central Brazil (Cerrado)." Scholarly Repository, 2010. http://scholarlyrepository.miami.edu/oa_dissertations/371.
Full textKilroy, Hayley A. "Enrichment planting of an understory palm: Effect of microenvironmental variables on seedling establishment, growth, and survival." Miami University Honors Theses / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=muhonors1209495979.
Full textBertacchi, Maria Isabel Ferreira. "Micro-sítio como filtro para o estabelecimento de regenerantes arbóreos em áreas restauradas." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/11/11150/tde-14022012-093157/.
Full textThe characteristics of the natural regeneration of restoration plantings understory express the main indicators of success of ecological restoration projects, in which the absence of regeneration indicates a bottleneck for the perpetuation of forest communities inserted into highly fragmented landscapes. Nevertheless, adverse conditions of the micro-site of regeneration in restoration plantings may hamper the colonization of the understory by native species, which in turn collapse its perpetuation along the time. We sought to evaluate if, or how, the physical-chemical conditions of the micro-site of regeneration of restoration plantings with different ages can limit native tree species establishment and therefore, the dynamic of forest restoration. The study was developed in three areas under restoration with different ages (10, 22 and 55 years). The physical-chemical characterization of the micro-site of regeneration of the study areas was carried out by evaluating the soil compression level, porosity, humidity, organic matter and nutrients content and granulometry, as well as litter dry mass and canopy cover. In each area, we set 10 experimental blocks, each one consisting of four 1 m x 1 m plots, in which nine tree species were sown. In each plot we established three treatments: A) direct seeding in the natural condition of the area, without any alteration in the characteristics of the micro-site (indigenous leaf litter), B) direct seeding on the leaf litter and soil transplanted from a native forest (allochthonous leaf litter), C) direct seeding on grounded and composted sugarcane bagasse and D) control (no seeding). Seedling emergence and mortality were observed through six months. An increase on the canopy cover and soil porosity, humidity, clay and organic matter content were observed in the oldest areas, as well as a decrease in soil compression. Seedling emergence did not differ among the studied areas; however, seedling survival was significantly lower in the oldest reforestation, with 55 years. A positive correlation was observed between seedling mortality with the increase of canopy cover and soil organic matter content. Seedling emergence and survival were statistically higher in the treatment A (indigenous leaf litter). Thus, although the micro-site conditions for seedling establishment become even more similar to reference ecosystems as restoration planting evolve, it also becomes more restrictive. In addition, seedling establishment was favored in the conditions of local substrate of restoration plantings, without evidence of limitation for the progress of secondary succession. Consequently, dispersal limitation may play a higher influence in this condition for the advance of restoration process.
Peña, Ahumada Andrea Alejandra. "Antioxidant defence and the role of the peroxiredoxins during silique development and seedling establishment in oilseed plants." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=980373115.
Full textLi, Fui Yee. "Factors affecting tree seedling establishment following rehabilitation management in logged-over tropical rain forest in Sabah, Malaysia." Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429982.
Full textAllen, Elizabeth Jane. "Global investigations into the metabolic regulation of gene expression during germination and seedling establishment in Arabidopsis thaliana." Thesis, Bangor University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488845.
Full textLiu, Rui. "Regulation and molecular signaling during seed germination and seedling establishment of arabidopsis in response to abiotic stresses." HKBU Institutional Repository, 2013. https://repository.hkbu.edu.hk/etd_oa/101.
Full textCamu, Isabelle Veronique Marie. "Understanding the mechanism(s) of hydro-priming to improve seed vigour and seedling establishment of Solanum lycopersicum." Thesis, University of Exeter, 2017. http://hdl.handle.net/10871/33211.
Full textGurmu, Mulugeta. "The effects of seed vigour and moisture stress on the germination and seedling establishment of wheat and sorghum." Thesis, University of Aberdeen, 1991. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU031802.
Full textBreen, Amanda Nicole. "Improving seedling establishment on the saline playa at Owens Lake, California through soil amendment, improved seed quality, and increased seed entrapment /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2005. http://uclibs.org/PID/11984.
Full textYoung, Kert R. "Plant Establishment and Soil Microenvironments in Utah Juniper Masticated Woodlands." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3318.
Full textShepherd, Ashley Lauren. "Mapping of Sonoran Desert Vegetation Communities and Spatial Distribution Differences of Larrea Tridentata Seed Density in Relation to Ambrosia Dumosa and Ambrosia Deltoidea, San Cristobal Valley, Arizona." Thesis, The University of Arizona, 2011. http://hdl.handle.net/10150/217053.
Full textYoung, Laura May. "Seed dispersal mutualisms and plant regeneration in New Zealand alpine ecosystems." Thesis, University of Canterbury. School of Biological Sciences, 2012. http://hdl.handle.net/10092/6992.
Full textWäli, P. (Piippa). "Environment and genetic background affecting endophyte-grass symbiosis." Doctoral thesis, University of Oulu, 2006. http://urn.fi/urn:isbn:9514281632.
Full textGadeh, H. M. "The effect of compost and priming on the salt tolerance of bread wheat (Triticum aestivum L. cv. S-24 and cv. Slambo) during germination and early seedling establishment." Thesis, Coventry University, 2013. http://curve.coventry.ac.uk/open/items/f0bd31e5-d16c-4435-993a-ab1ec64d7bc3/1.
Full textBenard, Rebecca Balogh. "Causes and consequences of spatial aggregation for seedling establishment of a long-lived desert perennial shrub (Chrysothamnus nauseosus: Asteraceae) : interaction between intrinsic properties of individuals and fine-scale environmental heterogeneity /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2005. http://uclibs.org/PID/11984.
Full textShaffer, James D. "FACTORS INFLUENCING THE ESTABLISHMENT AND SURVIVAL OF NATIVE HARDWOOD TREE SEEDLINGS OF THE KENTUCKY INNER BLUEGRASS BLUE ASH-OAK SAVANNA-WOODLAND." UKnowledge, 2013. http://uknowledge.uky.edu/biology_etds/15.
Full textCamp, Keri Van. "Environmental Variables that Affect the Establishment of Myrica gale Seedlings." Fogler Library, University of Maine, 2005. http://www.library.umaine.edu/theses/pdf/CampKV2005.pdf.
Full textAshkenazi, Rafael 1958. "Influence of herbicides on establishment of tree seedlings in northern Israel." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/277933.
Full textSulaiman, Raja Barizan Raja. "Studies on the early establishment of dipterocarp seedlings in a Malaysian logged hill forest." Thesis, University of Stirling, 1997. http://hdl.handle.net/1893/21437.
Full textLöf, Magnus. "Environmental stress on establishment and growth in Fagus sylvatica L. and Quercus robur L. seedlings /." Alnarp : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5625-8.pdf.
Full textJackelman, James J. "Patterns of establishment of Acacia cyclops Cunn. ex G.Don seedlings in consolidated and unconsolidated coastal sands." Bachelor's thesis, University of Cape Town, 1988. http://hdl.handle.net/11427/26716.
Full textRamachela, Khosi. "Studies on the mycorrhizosphere and nutrient dynamics in the establishment and growth of Uapaca kirkiana in Zimbabwe." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/1354.
Full textExperiments carried out in this study sought to contribute to the understanding of the ecological interactions involved in Uapaca kirkiana seedling establishment and growth in a natural woodland ecosystem. These include soil pH reactions, plant root surface pH change, root exudates that affect the chemical behaviour of the soil in the vicinity of the root, and microbial effects. Although it was difficult to determine which of these factors play a dominant role in the soil-plant relationship, the study contributed to the understanding of the mycorrhizal fungi-host plant association. It revealed the diversity of mycorrhizal fungal species occurring in the different ecological sites, and also analysed the relationship between soil factors. Soil pH and K had significant influences on the fungi population diversity. K was considered important in its role in the translocation of auxins to the root sites where they enhance root susceptibility to mycorrhizal fungal infection. More work needs to be undertaken to establish the role of soil pH.
Berry, Christopher J. J. "Post-dispersal seed predation in a conifer-broadleaf forest remnant : the importance of exotic mammals." Lincoln University, 2006. http://hdl.handle.net/10182/666.
Full textRomell, Eva. "Artificial canopy gaps and the establishment of planted dipterocarp seedlings in Macaranga spp. dominated secondary tropical rain forests of Sabah, Borneo /." Umeå : Dept. of Forest Ecology and Management, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/10322511.pdf.
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