Search for dissertations about: "root growth"

Showing result 1 - 5 of 189 swedish dissertations containing the words root growth.

2. 1. The hidden life of plants : fine root dynamics in northern ecosystems

   Author : Gesche Blume-Werry; Roland Jansson; Ann Milbau; Scott D. Wilson; Isla Myers-Smith; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Arctic; belowground; boreal; climate change; fine roots; heath; meadow; minirhizotron; permafrost; phenology; plant community; root biomass; root growth; root litter; root production; subarctic; tundra;

   Abstract : Fine roots constitute a large part of the primary production in northern (arctic and boreal) ecosystems, and are key players in ecosystem fluxes of water, nutrients and carbon. Data on root dynamics are generally rare, especially so in northern ecosystems. READ MORE

4. 2. Essays on growth and environment

   Author : Catia Cialani; Thomas Aronsson; Karl-Gustaf Löfgren; Patrik Söderholm; Högskolan Dalarna; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; genuine saving; welfare change; taxation; per capita GDP; per capita CO2; international trade; net migration; unemployment; growth; inequality.; Complex Systems – Microdata Analysis; Komplexa system - mikrodataanalys;

   Abstract : This thesis consists of a summary and four self-contained papers.Paper [I] Following the 1987 report by The World Commission on Environment and Development, the genuine saving has come to play a key role in the context of sustainable development, and the World Bank regularly publishes numbers for genuine saving on a national basis. READ MORE

5. 3. Economic Growth and Fiscal Policy

   Author : Pontus Hansson; Nationalekonomiska institutionen; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Nationalekonomi; economic policy; economic systems; economic theory; econometrics; public debt; Economics; tax harmonization; financial lending; economic growth; fiscal policy; ekonometri; ekonomisk teori; ekonomiska system; ekonomisk politik; Financial science; Finansiering;

   Abstract : This thesis deals with the two subjects economic growth and fiscal policy. The first three chapters after the introduction are theoretical approaches to the determination of long-run growth. In each of these chapters, the ability of fiscal policy to influence long-run growth is examined as well. READ MORE

6. 4. Jasmonates in root nodule development

   Author : Anna Maria Zdyb; Katharina Pawlowski; Sofie Goormachtig; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Lotus japonicus; jasmonic acid; actinorhizal; rhizobia; Frankia; root nodule; lipoxygenase; allene oxide cyclase; allene oxide synthase; Casuarina; Datisca; Medicago; Plant physiology; Växtfysiologi; växtfysiologi; Plant Physiology;

   Abstract : Jasmonic acid (JA), its derivatives and its precursor form a group of phytohormones, the jasmonates, representing signal molecules involved in plant stress responses, in the defense against pathogens as well as in development. Elevated levels of JA have been shown to play a role in arbuscular mycorrhiza and in the induction of nitrogen-fixing root nodules. READ MORE

7. 5. Models of Mechanics and Growth in Developmental Biology: A Computational Morphodinamics approach

   Author : Behruz Bozorg; Beräkningsbiologi och biologisk fysik - Genomgår omorganisation; []
   Keywords : plants; morphodynamics; mechanics; anisotropy; growth; microtubules; microfibrils;

   Abstract : Recent evidence has revealed the role of mechanical cues in the development of shapes in organisms. This thesis is an effort to test some of the fundamental hypotheses about the relation between mechanics and patterning in plants. To do this, we develop mechanical models designed to include specific features of plant cell walls. READ MORE