Search for dissertations about: "seasonal-changes"
Showing result 1 - 5 of 42 swedish dissertations containing the word seasonal-changes.
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1. Phytobenthic communities in the Baltic Sea - seasonal patterns in settlement and succession
Abstract : Seasonal changes in reproduction, recruitment, occurrence and growth of marine plant and animal species is a common phenomenon world-wide. This thesis investigates whether such seasonal changes could determine the succession in subtidal phytobenthic communities on free space in the Baltic Sea. READ MORE
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2. Molecular control of activity - dormancy transitions in Populus
Abstract : Perennials such as woody plants, growing in the high northern part of the earth have to cope with seasonal changes alternating between mild summer and the harsh winter periods. To survive and adapt their reproductive phase to the most favorable environmental conditions trees cycle between periods of active growth during summer and a state of growth arrest during winter, referred to as the activity- dormancy cycle. READ MORE
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3. Studies on the different inhibitors of the inhibitor β complex from resting potatoes
Abstract : Seasonal changes of the inhibiting substances in the inhibitor B complex were studied in diethyl ether and methanol extracts of peelings from potato tubers (Solanum tuberosum L. variety Majestic), prepared during dormancy and cessation of dormancy. At each extraction time experiments were performed to determine the stage of rest in the tubers. READ MORE
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4. Terrestrial Ecosystem Interactions with Global Climate and Socio-Economics
Abstract : The global terrestrial carbon cycle plays a pivotal role in regulating the atmospheric composition of greenhouse gases. Currently it is responsible for removing 25-30% of our emissions every year, an important ecosystem service that may not persist in the long term. READ MORE
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5. ABA and chromatin remodelling regulate the activity-dormancy cycle in hybrid aspen
Abstract : One of the most important survival strategies plants have evolved is the cessation of growth and development of dormancy in response to the seasonal changes. Apical meristems of deciduous woody plants living in temperate and boreal zones undergo a yearly cycle between an active and a dormant state, which allows them to protect the meristem and avoid damage provoked by extremes of low temperatures during the winter. READ MORE
