Spelling suggestions: "subject:"root shock ratio""
1 |
Experimental Assessment of Butomus Umbellatus L. Growth and Expansion Using a Mesocosm ApproachCarter, Christian 15 August 2014 (has links)
Over the last century, flowering rush (Butomus umbellatus L.: Butomaceae) has escaped its native Eurasian range and has become a problematic species in North America. As an aquatic invasive species, flowering rush has degraded native wetlands and has interfered with human water usage. Although experimental work has been done regarding the reproductive biology of the species, few empirical studies regarding the ecology of the species have been conducted. The research reported here demonstrates that flowering rush is capable of aggressive clonal growth and propagation, and can perform well along a depth gradient from zero to 132cm. Proper management and control of invasive species relies on sound ecological knowledge of the target species, and this work aims to help gather that information.
|
2 |
Effect of CO2 on the response of C and N relations to a heat wave in sunflower and cornTripathee, Rajan 30 September 2008 (has links)
No description available.
|
3 |
Klonální integrace Agrostis stolonifera v živinově heterogenním prostředí / Clonal integration of Agrostis stolonifera in heterogeneous soil environmentDuchoslavová, Jana January 2014 (has links)
Clonal plants may be able to cope with spatial heterogeneity due to the physiological integration of ramets. Previous studies demonstrated that benefits of clonal integration increase with patch contrast between individual ramets. However, the same magnitude of contrast may be perceived differently in rich and poor environments. According to the theoretical work of Caraco and Kelly (1991), I expected these benefits to be the greatest in overall poor conditions and high between-patch contrast. To test this hypothesis, I conducted experiments with pairs of ramets of a stoloniferous grass, Agrostis stolonifera, grown in variously nutrient rich conditions. The experiment with pairs of ramet of similar developmental age showed only very weak effect of integration on growth of ramets, although integration significantly improved survival of ramets and also affected root-shoot ratio of ramets. Nevertheless, there were considerable benefits of integration in the experiment with developmentally older mother ramets and their daughter ramets. Contrary to the predictions, the benefits of integration were bigger in rich conditions and they decreased with increasing between-patch contrast. In addition, effect of integration on root-shoot ratio of ramets was opposite to the expected specialization for acquisition...
|
4 |
Sustainable Bioenergy Feedstock Production Using Long-Term (1999-2014) Conservation Reserve Program LandRaut, Yogendra Y. 08 August 2017 (has links)
No description available.
|
Page generated in 0.0809 seconds