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Dissertations / Theses on the topic 'Canopy density'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Yazbeck, Theresia. "THE EFFECTS OF CANOPY DENSITY AND SPACING IN MODULATING POLLUTION DEPOSITION RATE." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1563810652136029.

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2

Lee, Alex C., and alexanderlee@aapt net au. "Utilising airborne scanning laser (LiDAR) to improve the assessment of Australian native forest structure." The Australian National University. Fenner School of Environment and Society, 2008. http://thesis.anu.edu.au./public/adt-ANU20090127.222600.

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Enhanced understanding of forest stocks and dynamics can be gained through improved forest measurement, which is required to assist with sustainable forest management decisions, meet Australian and international reporting needs, and improve research efforts to better respond to a changing climate. Integrated sampling schemes that utilise a multi-scale approach, with a range of data sourced from both field and remote sensing, have been identified as a way to generate the required forest information. Given the multi-scale approach proposed by these schemes, it is important to understand how sc

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3

Whaley, Joanna. "The physiological response of winter wheat varieties to reductions in plant population density." Thesis, University of Nottingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368249.

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4

Rist, Stephen G. "The effects of canopy density and vegetative competition on oak seedling numbers in southeastern Ohio." Connect to resource, 2006. http://hdl.handle.net/1811/21759.

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Thesis (Honors)--Ohio State University, 2006.<br>Title from first page of PDF file. Document formatted into pages: contains 19 p.; also includes graphics. Includes bibliographical references (p. 18-19). Available online via Ohio State University's Knowledge Bank.

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5

Thomson, C. C. "Rootstock and canopy density effects on grape berry composition : organic acid composition, potassium content and pH." Lincoln University, 2006. http://hdl.handle.net/10182/772.

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The influence of rootstock and canopy density on grape berry composition was investigated over the summer of 2003-2004 on a commercial vineyard at Waipara, North Canterbury. This experiment was designed to investigate the influence of rootstock and canopy density on the acid composition, potassium (K) content and final pH of harvested fruit (Pinot Noir AM 10/5 Lincoln Selection). The trial block consisted of eight rootstocks laid out to an 8 x 8 latin square, each plot consisting of five vines of the same rootstock. Two canopy treatments were overlaid the block (down whole rows, assigned rando

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6

Crifo, Camilla. "VARIATIONS IN ANGIOSPERM LEAF VEIN DENSITY HAVE IMPLICATIONS FOR INTERPRETING LIFE FORM IN THE FOSSIL RECORD." Miami University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=miami1375987428.

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7

Silva, Liliane Severino da. "Tiller population density and demography dynamics of Convert HD 364 brachiariagrass in response to canopy height and growth rate under continuous stocking." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/11/11139/tde-13112015-110013/.

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Pasture-based livestock production is one of the major economic activities in Brazil. In general, the adoption of new forage materials by producers happens before enough information about their characteristics is generated, compromising their use in commercial systems. An experiment was conducted in Piracicaba, Brazil (22º42\' S, 47º30\' W, 580 m asl.), during two summer growing seasons, with the objective to describe and explain the tillering dynamics of the hybrid brachiariagrass Convert HD 364 (Brachiaria hybrid CIAT 36087) under continuous stocking and variable stocking rate. Responses stu

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8

Okeyo, James Ajuoga. "Effects of topping, stem density, and stage of vine cutting on canopy growth and tuber yield yield of potato (Solanum tuberosum L.)." Diss., Virginia Tech, 1995. http://hdl.handle.net/10919/39156.

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9

Veatch, William Curtis. "Quantifying the Effects of Forest Canopy Cover on Net Snow Accumulation at a Continental, Mid-Latitude Site, Valles Caldera National Preserve, NM, USA." Thesis, The University of Arizona, 2008. http://hdl.handle.net/10150/193352.

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Although forest properties are known to influence snowpack accumulation and spring runoff, the processes underlying the impacts of forest canopy cover on the input of snowmelt to the catchment remain poorly characterized. In this study I show that throughfall and canopy shading can combine to result in maximal snowpacks in forests of moderate canopy density. Snow depth and density data taken shortly before spring melt in the Jemez Mountains of New Mexico show strong correlation between forest canopy density and snow water equivalent, with maximal snow accumulation in forests with density bet

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10

Sarver, Jason. "INFLUENCE OF VARIOUS PLANT POPULATIONS ON WEED REMOVAL TIMING IN GLYPHOSATE-RESISTANT SOYBEAN." UKnowledge, 2009. http://uknowledge.uky.edu/gradschool_theses/591.

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Reduced plant population in glyphosate-resistant soybean [Glycine max (L) Merr.] may influence the critical time of herbicide application. Field studies were conducted in 2007 and 2008 at two locations in Kentucky to determine the effect of four weed control programs on soybean seed yield, seed quality, crop canopy, and weed pressure when planted at three densities - 185,000, 309,000, and 432,000 plants ha-1. Plots were treated with glyphosate at either 3 weeks after planting (WAP), 5 WAP, 7 WAP, 3 & 7 WAP, representing common weed control protocols within the state. No differences in seed yie

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11

Minnick, Michael John. "The roles of forest fragments and an invasive shrub in structuring native bee communities and pollination services in intensive agricultural landscapes." Miami University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=miami1581000018403528.

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12

Hakamada, Rodrigo Eiji. "Physiological responses and soil water balance of clonal Eucalyptus under contrasting spacings and genotypes." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/11/11150/tde-28112016-113417/.

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Planting density and genotype have close relationship with the water relations in plants. The scenario of increased occurrence of extreme weather events and the change of Eucalyptus forest plantations to high water deficit regions, led us to the three key questions of this study: (1) What is the relationship between planting density and the potential water stress? (2) The planting spacing interferes the water use efficiency (WUE), i.e. the amount of biomass produced by the amount of water transpired? (3) Can the planting density change the soil water balance (BHS)? To develop this work, we set

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13

Leatherbarrow, Jane Florence. "'Culmination chromatic density' in the free organ fugues of J.S. Bach." Thesis, University of Aberdeen, 2018. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=239053.

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The term 'Culmination chromatic density' (CCD) is devised for the thesis to describe perceived unusual chromatic harmony which occurs towards the end of a few of Bach's free organ fugues. The thesis seeks to determine the nature of the harmony, to establish if seventeenth and eighteenth-century theorists discuss fugue culmination harmony, and whether composers before Bach wrote fugues with unusual culmination harmony. After establishing an outline organ fugue chronology, historical music theory and fugues before Bach are examined for the purpose of identifying influences upon Bach's fugue culm

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14

Amaral, Alan Dischkaln do. "Qualidade de sementes de canola classificadas por densidade em diferentes condições de déficit hídrico e de profundidade de semeadura." Universidade Federal de Santa Maria, 2010. http://repositorio.ufsm.br/handle/1/5023.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The aim of this study was to evaluate the effect of different density classes of canola seeds over the physiologic quality, as well as the effects on different depth of sowing and in conditions of water deficit. Also, the hydration curve was employed as auxiliary element on identification of better quality classes. Seeds of two hybrids of canola, Hyola 61 and Hyola 401, were separated into six classes of density. These classes were submitted to tests to characterize their physiological potential: germination, fist count of germinat

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15

Kruger, Cleusa Adriane Menegassi Bianchi. "Arranjo de plantas e seus efeitos na produtividade de grãos e teor de óleo em canola." Universidade Federal de Santa Maria, 2011. http://repositorio.ufsm.br/handle/1/3200.

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The adjustment plant arrangement is one of the fundamental management techniques for canola show positive reaction in the ability to absorb light energy, nutrients and water, which reflects on maximizing the production of photosynthate directed to the plant and grains. The aim of this study was to assess the interference of arrangement plant on direct and indirect components of yield in canola, and includes determining the effects produced in oil content. The study was conducted at the Instituto Regional de Desenvolvimento Rural do Departamento de Estudos Agrários da Universidade Regional do N

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16

Pernerowski, Reanne Jr. "Weather, Microclimate, Canopy Density and Neighbouring Non-Host Crop Impacts on Sclerotinia Stem Rot Disease in Canola." 2014. http://hdl.handle.net/1993/24061.

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Sclerotinia stem rot (SSR) disease is one of the most devastating diseases of canola in the Canadian prairies caused by the fungus Sclerotinia sclerotiorum (Lib.) de Bary. Yield losses ranging between 5 to 100 percent can be experienced as a result of this disease. This study evaluated the impacts of weather and microclimate on SSR development in canola with varying canopy density. Ascospore dispersal and disease incidence were compared under modified canopy densities and misting regimes to alter microclimate. The effectiveness of crop rotation and the influence of neighbouring non host crops

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17

Mutlu, Muge. "Estimating Canopy Fuel Parameters with In-Situ and Remote Sensing Data." Thesis, 2010. http://hdl.handle.net/1969.1/ETD-TAMU-2010-12-8810.

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Crown fires, the fastest spreading of all forest fires, can occur in any forest type throughout the United States and the world. The occurrence of crown fires has become increasingly frequent and severe in recent years. The overall aim of this study is to estimate the forest canopy fuel parameters including crown base height (CBH) and crown bulk density (CBD), and to investigate the potential of using airborne lidar data in east Texas. The specific objectives are to: (1) propose allometric estimators of CBD and CBH and compare the results of using those estimators to those produced by the Crow

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18

Lee, Alex C. "Utilising airborne scanning laser (LiDAR) to improve the assessment of Australian native forest structure." Phd thesis, 2008. http://hdl.handle.net/1885/49344.

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Enhanced understanding of forest stocks and dynamics can be gained through improved forest measurement, which is required to assist with sustainable forest management decisions, meet Australian and international reporting needs, and improve research efforts to better respond to a changing climate. Integrated sampling schemes that utilise a multi-scale approach, with a range of data sourced from both field and remote sensing, have been identified as a way to generate the required forest information. Given the multi-scale approach proposed by these schemes, it is important to understand how scal

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19

McGinty, Joshua. "Effect of Rate and Season of Application of Aminocyclopyrachlor on the Control of Acacia Farnesiana (L.) Willd. in South Texas." Thesis, 2012. http://hdl.handle.net/1969.1/ETD-TAMU-2012-05-11039.

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This study was conducted on two rangeland sites in south Texas with large populations of huisache (Acacia farnesiana (L.) Willd.); the Bush Ranch in Goliad County, and the Hitchcock Ranch in Bee County. The purpose of the study was to evaluate the effect of three herbicide treatments and three seasons of application on 1) apparent mortality of huisache, 2) huisache canopy cover, 3) huisache stem density, and 4) herbaceous ground cover. Herbicide treatments included aminocyclopyrachlor alone at a rate of 0.315 kg a.i. ha-1, aminocyclopyrachlor + triclopyr at a rate of 0.210 kg a.i. ha-1 + 0.42

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20

Penedos, Pedro Pais. "Precision Agriculture Using Unmanned Aerial Systems: Mapping Vigor’s Spatial Variability On Low Density Agricultures Using a Canopy Pixel Classification And Interpolation Model." Master's thesis, 2018. http://hdl.handle.net/10362/33277.

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Dissertation submitted in partial fulfilment of the requirements for the degree of Master of Science in Geospatial Technologies<br>It is becoming more present in agriculture’s practices the use of Unmanned Aerial Systems with sensors capable of capturing light, in the visible and in longer wavelengths of the electromagnetic spectrum once reflected on the field. These sensors have been used to perform Remote Sensing also in other knowledge fields, describing phenomenon without the risk, cost and the time consuming processes associated with in site samples collection and analysis by a technician

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21

Schuldt, Bernhard. "Effects of experimental drought on hydraulic properties and leaf traits of upper canopy and understory tree species in a perhumid tropical forest in Central Sulawesi, Indonesia." Doctoral thesis, 2010. http://hdl.handle.net/11858/00-1735-0000-0006-ADD8-8.

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22

Bromová, Petra. "Analýza hustoty lesních porostů s využitím texturálních příznaků snímků vysokého prostorového rozlišení a dat leteckého laserového skenování." Master's thesis, 2012. http://www.nusl.cz/ntk/nusl-306713.

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Analysis of forest canopy density based on textural features of high resolution imagery and airborne laser scanning data Abstract The objective of this thesis is to assess the forest canopy density in the Šumava Mountains, Czech Republic. The spruce forests in this area have been suffering from the bark beetle outbreak for almost 20 years resulting in a mixture of dead and young trees, mature forest stands and peat bogs. The canopy density was evaluated using a very high spatial resolution panchromatic imagery and low point density LiDAR, combined with an object oriented approach. The classifi

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23

Linde, Craig. "The impact of seed treatment, cultivar and crop density on canola (Brassica napus) competitiveness against volunteer barley (Hordeum vulgare)." 2001. http://hdl.handle.net/1993/7341.

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Canola is an important crop in western Canada that has become intensively managed with purchased inputs. By knowing the relative contribution of seed treatment, seeding rate, and cultivar to canola competitiveness against weeds and yield producers can adjust input decisions and maintain yield goals but increase net gain. Field experiments took place during 1999 and 2000 in the Brandon region of western Manitoba. Treatments included; two canola cultivars (Invigor 2273 &, Exceed), the presence/absence of volunteer barley, four target canola densities (37.5, 75, 150 & 300 plant/m2) and four seed

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24

Unger, Malte Arne. "Relationships between soil chemical properties and forest structure, productivity and floristic diversity along an altitudinal transect of moist tropical forest in Amazonia, Ecuador." Doctoral thesis, 2010. http://hdl.handle.net/11858/00-1735-0000-0006-ADA3-B.

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