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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 74 for “"plant population"”.
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Transient dynamics in plant population models
… short-term responses to unstable conditions in population models. Although the theoretical potential of these short-term effects to change interpretation of model behavior has been demonstrated, it is unclear whether transient analyses will be relevant or useful in management applications. This …
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Transient dynamics in plant population models
… short-term responses to unstable conditions in population models. Although the theoretical potential of these short-term effects to change interpretation of model behavior has been demonstrated, it is unclear whether transient analyses will be relevant or useful in management applications. This …
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Stochastic Dynamics Models of Plant Population and Species Diversity
This study presents sophisticated error analysis of the Shannon index in time and space. Error of current estimate increases proportional to measurement while the total forecasting error increases very fast in time. Spatial variation contributes the most to the total error of the Shannon index. …
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Ecology of plant-animal interactions during plant population expansion processes
Plant-animal interactions are crucial for maintaining ecosystem functionality and biodiversity. Ecological research has shown that these interactions can be modified in different contexts, affecting natural dynamics. Currently, significant changes in the landscape, such as rural abandonment or the …
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Consequences of plant population size for pollinator visitation and plant reproductive success
… have a prominent role in determining the size of plant populations, and can affect plant-pollinator interactions. It is hypothesized that in small plant populations the ability to set seeds can be reduced due to limited pollination services, since individuals in small populations can receive less …
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Seed ecophysiology and plant population ecology of Cynoglossum officinale L. and Tragopogon spp.
… and Tragopogon spp. and dynamics of seed and plant populations in T.pratensis were investigated. A deep innate (primary) dormancy was found in C. officinale seeds, and the seed coat of this species played an important role in the regulation of seed germination by controlling 02availability to …
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Nitrogen fertility, plant population, row spacing, and hybrid effects on corn grain yield
DSpace SAF Submission Ingestion Package generated from Vireo submission #13821 on 2019-08-22 at 14:45:32
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An adaptive image processing algorithm for field plant population analysis based on UAV imaging system
Plant population is among the most important items of agricultural data. In crop science, plant population determines canopy closure time, plant spacing, and weeds competition. For farmers, if plant population can be obtained in time, it can help in crop management decisions on replanting, …
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Evaluation of Single-Ear and Multiple-Ear Corn Types With Respect to Plant Population, Plant Competition, and Light on Agronomic Characteristics and Utilization of Stalk Soluble Solids
Made available in DSpace on 2014-12-12T00:17:42Z (GMT). No. of bitstreams: 1 7114792.pdf: 8221020 bytes, checksum: 0d205742caf7b44f6125fc4276b491ef (MD5) Previous issue date: 1970
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Individual Experiments to Evaluate the Effects of Plant Population and Planting Date, Cultivar and Plant Growth Regulator Application, and Herbicide and Plant Growth Regulator Application on Cotton (Gossypium hirsutum L.) Growth and Development, Yield, and Fiber Quality
… field experiments examining the interaction of plant population and planting date, and cultivar or herbicide and plant growth regulator application on these parameters were conducted in Virginia during 2005 and 2006 and in North Carolina, South Carolina, and Louisiana during specific years. …
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Yield and water use efficiency of different plant populations of dryland corn and sorghum
… The objective was to determine the effect of plant population on yield, water use, and water use efficiency, of one cultivar of corn (<i>Zea mays</i> L.) and two cultivars of sorghum (<i>Sorghum bicolor </i>(L.) Moench). Plant population treatments for corn were 37, 49, and 62 thousand plants …
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The effect of plant population, spatial arrangement and weed competition on growth and yield of dwarf beans (Phaseolus vulgaris L.) : a thesis submitted in partial fulfilment of the requirements for the degree of Master of Agricultural Science in the University of Canterbury [Lincoln College]
… at Lincoln College to study the effect of plant population and spatial arrangement on growth, green bean yield and yield of dry seed of the standard commercial green bean (Phaseolus vulgaris L., Cv. 'Gallatin 50'). The crop was grown in all combinations of 15, 30, 38 and 45 cm row widths …
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Determination and Manipulation of Leaf Area Index to Facilitate Site-Specific Management of Double-Crop Soybean in the Mid-Atlantic, U.S.A.
… management strategies such as varying plant population may be used to manipulate LAI and increase yield in leaf area-limited systems. Furthermore, methods to remotely sense leaf area are in order to facilitate such management strategies in large fields. The objectives of this research …
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Analysis of management factor contributions to high-yielding corn production systems
… (N) fertility, N fertility, hybrid trait, plant population, and fungicide application) were evaluated by establishing 2 levels (traditional and advanced) of each factor. Twelve total treatments consisted of a High Technology (HT) treatment (all advanced factors combined), a Traditional …
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Effect of plant density on soybean seed yield and quality
The effects of plant density on the growth, development, seed yield and seed quality of soybean (Glycine max [L.] Merrill) were investigated in the 2001/2002 season on a Wakanui silt loam soil at Lincoln University, Canterbury. Seeds of two cultivars, Northern Conquest and March were hand sown on 1 …
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The general continuum model for structured populations, with two case studies in plant ecology
… and usefulness of a very general model for plant population dynamics. In chapter 1, the goal of generality is discussed, particularly in the light of the lack of interaction between field and experimental population studies on the one hand and theoretical population dynamics on the other …
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