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.
2021
Authors
Milica Fotiric Aksic Kristina Lazarević Sandra Šegan Maja Natić Tomislav Tosti Ivanka Ćirić Mekjell MelandAbstract
No abstract has been registered
Abstract
Norwegian pear (Pyrus communis L.) production has been in decline for the last 25 years. This was mainly because of old cultivars, with low yields and poor consumer appeal, could not compete against strong competition from imported pears, mainly ‘Conference’. Since 1994, the Norwegian breeding company, Graminor Ltd., has released several new pear cultivars, which have been evaluated at NIBIO Ullensvang, western Norway. The first trial was planted in 1999 and included the Graminor Ltd. cultivars: ‘Ingeborg’, ‘Fritjof’ and ‘Anna’, which were bred by the Norwegian University of Life Sciences. In 2002, a second trial was planted including Graminor Ltd. cultivars: ‘Kristina’, ‘Ingrid’ and ‘Celina’ and these were compared against a control, ‘Clara Frijs’. All scion cultivars were grafted on the semi-vigorous rootstock ‘Brokmal’ and grown for 8 years. In both trials, full bloom (~80% of flowers open) took place between 7 May + 3 days and 15 May + 4 days. Flowering was however, completed within a 7-day period in any one year, ensuring adequate overlap in flowering time between all cultivars. Over the final 4-year period all cultivars were evaluated, ‘Anna’, ‘Fritjof’, ‘Kristina’ and ‘Ingeborg’ all had moderate cumulative yields (64.7, 66.2, 36.1, and 30.4 kg·tree-1, respectively). Fruit weight (212 to 183g) and quality of all these cultivars was acceptable (11.2% ≤ TSS ≤ 11.8%; 0.16% ≤ acidity ≤ 0.22%). However, ‘Fritjof’ had many misshapen fruit and exhibited pre-harvest shriveling in several instances making it unacceptable for commercial plantings. ‘Clara Frijs’ and ‘Celina’ cumulative yields were low (12.5 and 21.2 kg per tree, respectively) and fruit were also small (172 to 161 g, respectively). However, due to the attractive cerise-blush ‘Celina’ (trademarked QTee®) pear is now widely planted in Norway and abroad and grafted on Quince rootstocks.
Authors
Nermina Spaho Fuad Gasi Erich Leitner Milenko Blesić Asima Akagic Sanja Orucevic Zuljevic Mirsad Kurtovic Davorka Dukic Ratkovic Mirela Smajic Murtic Milica Fotiric Aksic Mekjell MelandAbstract
No abstract has been registered
Authors
Teresa Barreneche Maria Cárcamo de la Concepción Marine Blouin-Delmas Matthew Ordidge Hilde Nybom Gunars Lacis Daina Feldmane Jiri Sedlak Mekjell Meland Hedi Kaldmae Kersti Kahu Zsuzsanna Bekefi Sanda Stanivukovic Gordana Đurić Monika Høfer Martin Galik Elisabeth Schüller Andreas Spornberger Sorina Sirbu Pavlina Drogoudi Ana Christina Agulheiro-Santos Ossama Kodad Ales Vokurka Marc Lateur Felicidad Fernandez Fernandez Daniela Giovannini José Quero-GarcíaAbstract
No abstract has been registered
Authors
Ingunn Øvsthus Theresa Weigl Hanne Larsen Erlend Indergård Siv Fagertun Remberg Jorunn BørveAbstract
No abstract has been registered
Abstract
No abstract has been registered
Authors
Ulrike BayrAbstract
No abstract has been registered
Authors
Vibeke Lind Angela Dagmar Schwarm Marcello Mele Alice Cappucci Giulia Foggi Özge Sizmaz Eleni Tsiplakou Alberto Stanislao Atzori Joni Van Mullem Nico PeirenAbstract
No abstract has been registered
Authors
Jorunn BørveAbstract
No abstract has been registered
Authors
Jorunn BørveAbstract
No abstract has been registered