Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2009
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Anna Marie Holefors Lars Morten Opseth Anne Katrine Ree Rosnes Linda Ripel Lars Snipen Carl Gunnar Fossdal Jorunn Elisabeth OlsenAbstract
In woody plants of the temperate zone short photoperiod (SD) leads to growth cessation. In angiosperms CONSTANS (CO) or CO-like genes play an important role in the photoperiodic control of flowering, tuberisation and shoot growth. To investigate the role of CO-like genes in photoperiodic control of shoot elongation in gymnosperms, PaCOL1 and PaCOL2 were isolated from Norway spruce. PaCOL1 encodes a 3.9 kb gene with a predicted protein of 444 amino acids. PaCOL2 encodes a 1.2 kb gene with a predicted protein of 385 amino acids. Both genes consist of two exons and have conserved domains found in other CO-like genes; two zinc finger domains, a CCT and a COOH domain. PaCOL1 and PaCOL2 fall into the group 1c clade of the CO-like genes, and are thus distinct from Arabidopsis CO that belongs to group la. Transcript levels of both PaCOL-genes appear to be light regulated, an increasing trend was observed upon transition from darkness to light, and a decreasing trend during darkness. The increasing trend at dawn was observed both in needles and shoot tips, whereas the decreasing trend in darkness was most prominent in shoot tips, and limited to the late part of the dark period in needles. The transcript levels of both genes decreased significantly in both tissues under SD prior to growth cessation and bud formation. This might suggest an involvement in photoperiodic control of shoot elongation or might be a consequence of regulation by light. (C) 2008 Elsevier Masson SAS. All rights reserved.
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Helge BerglannAbstract
This paper presents a simple system for efficient regulation under asymmetric information. Each firm’s income is controlled by a tax that depends on the firm’s own output and on a parameter construed as a share permit. These "shares of total expected output" lower a firm’s tax burden and are acquired in a competitive market. By employing this scheme, the planner only requires knowledge of marginal damage to induce the first-best outcome. Relative to a traditional cap-and-trade approach the system increases expected social welfare. If incentives for strategic behavior in the market exist, their impact may be scaled down.
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Aldo Marchetto Rosario Mosello Gabriele Tartari O Tornimbeni J Derome Kisti Derome Pia Sorsa Nils Konig Nicholas Clarke Erwin Ulrich Anna KowalskaAbstract
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Erlend NybakkAbstract
Historically, the forest sector has been an important industry for the Norwegian economy, particularly for rural areas. Even though growth patterns among rural communities have differed, all have been greatly affected by urban centralization, global markets, and economic decline in the agricultural sector. The multi-dimensional value of natural resources creates possibilities for local economic development, and landowners are a key factor in releasing this potential. Innovation research within the use of forest land has experienced rejuvenation in recent years as reduced income from agricultural products, saw logs and pulp logs has become a critical policy issue at national and regional levels. Four innovation-oriented studies have recently been completed at the University of Life Science and the Forest and Landscape Institute in Norway. These studies examined Entrepreneurial attitudes effect on probability for start-upsEntrepreneurial attitudes impact on innovation and performancesocial networks, learning orientation and entrepreneurial climate impact on innovativeness. This presentation will highlight the most important findings from these studies and outline implications of the findings that may be used by policy makers, landowners and research.
Authors
Erlend NybakkAbstract
In order to uphold economic growth and employment in the districts and nationally, one is dependent on small and competitive firms and sole owner enterprises. These represent the majority of firms and are a vital source for new creativity and development in both traditional and new sectors. How one should promote entrepreneurship and innovation among these companies has been a central theme in political debates. The foremost goal with this thesis is to advance knowledge about the factors that trigger creativity and innovation in small firms, with the main focus on firms that offer non-timber forest products and services (NTFP&S). Article I was based on a questionnaire for forest owners in Telemark, Vest-Agder and Aust-Agder (three counties in east Norway) and shows that the likelihood of starting up with NTFP&S is greater among forest owners that recognize opportunities and are risk takers. Articles II and III were based on a questionnaire for firms that work with nature-based tourism. The first of them builds on Article I and shows that forest owners that recognize opportunity and are risk takers have a greater likelihood of changing the way they supply their products and services. Article III shows the effect of external relationships on innovation and how innovation affects economic accomplishment. The relationships are also exemplified by a case study. Article IV was based on a study of a random selection of forest owners with more than 25 hectares of forest in souteast Norway. The study shows that external relationships and learning orientation have a positive effect on innovation and again on economic success among forest owners, related to NTFP&S. Article V was based on a questionnaire for small, knowledge-intensive firms and shows the impact of external relationships on product, process and market innovation. Each of the articles presents implications of the findings and suggestions for further research.