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Publikasjoner

NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.

2007

Sammendrag

Varigheten av dvale ble påvirket av temperaturbetingelsene under både dyrking og forlagring i klimakammerforsøk. Lav dyrkingstemperatur (9 grader) førte til kortvarig dvale uansett forlagringstemperatur. 15 grader ga lengst dvale og spesielt ved høge temperaturer (18 grader) en periode etter opptaking. Etter 21 graders dyrkingstemperatur var dvalen relativt kortvarig dersom knollene ble utsatt for lave temperaturer (4 grader) etter opptak. Spirekapasiteten og antall groer ble også påvirket av dyrkingstemperaturene. Kort dvale etter lave dyrkingstemperaturer bidrar til å framskynde fysiologisk aldring.

Sammendrag

Informasjon om ulike dyrevelferdsprosjekt i Bioforsk Økologisk. Diskusjon om dyrevelferd i økologisk husdyrproduksjon i dag med fokus på storfe.

Sammendrag

Informasjon om prosjektet "Velferdvurderinger i LiA": Alle gårdsbrukene i LiA-prosjektet skal nå igjennom et nyutviklet rådgivingsopplegg for å kartlegge hvordan dyrevelferden er ivaretatt. Bioforsk Økologisk har utviklet dette opplegget sammen med TINE Rådgiving og Medlem og Norges Veterinærhøyskole. Målsetting med velferdsvurderinger i LiA-prosjektet er å beskrive dyrevelferdsnivået innen hver enkelt besetning samt å gi en generell vurdering av velferdsnivået for besetningene i LiA-prosjektet. Videre skal velferdsnivået i uisolert lausdrift skal sammenlignes med velferdsnivået i isolert lausdrift.

Sammendrag

The performance of the plum rootstocks Marianna, Pixy and Wangenheim using St. Julien A as a standard to the cultivars `Avalon", `Edda", `Excalibur", `Jubileum", `Reeves" and `Victoria" was assessed in a field trial in western Norway at 60" North. Trees were planted in spring 1999, the plant material was one-year-old whips, spaced 2.0 x 4.5 m and formed with a central leader as free spindles. Soil management was grass in the alleyways and herbicide strips 1-m wide along the tree rows. Tree vigour, yield, fruit size and yield efficentcy were evaluated for the six subsequent years. Tree size was significantly affected by the rootstocks after six years growth. Wangenheim produced the smallest and St. Julien A and Pixy the largest trees as measured by trunk cross-sectional area in average for the different cultivars. St. Julien A and Pixy were the most productive rootstocks for the cultivars. However, Pixy produced significant larger yields per tree to the cultivar `Reeves" than St. Julien A. Trees on Pixy were the most yield efficient for all cultivars with the exception of `Victoria". The fruit sizes were in general large for all cultivars and became little affected by the different rootstocks. Fruit quality characterized by the content of soluble solids was in general high and did not differ between trees on the various rootstocks. The cultivar `Avalon" had the highest contents of soluble solids.

Sammendrag

Dei siste to-tre åra har edelgranskotsjuke, årsaka av soppen Delphinella abietis, gitt store skadar i juletrefelt på Nord-Vestlandet og i Trøndelag. Nålene på årsskota vert brune og mange tre er så skadde at dei ikkje kan omsetjast.

Sammendrag

During the period 2005-2006, trials with the bioregulator gibberellic acid (GA3) were conducted at Bioforsk Ullensvang in western Norway on mature sweet cherry trees. In 2005, unsprayed control trees of the cultivars `Van" and `Lapins" were compared with trees treated with one single application of 10, 20 and 30 ppm GA3 at the straw-yellow stage of fruit development. The same program was conducted the following year but included one extra application with 40 ppm GA3 to the cultivar `Lapins". Fruits were harvested when non-treated control fruits were mature, and again three times with 3 days intervals. At each harvest date a sub-sample of fruits were stored 3, 7, 10 and 14 days at 4ºC. Average fruit weight, fruit firmness, total soluble solids, fruit surface colour were determined for sub-samples of fruits at harvest dates and after storage. Fruit size was increased by near 1 g per fruit for both cultivars after GA3 application. Fruit firmness at harvest was not increased for the cultivar `Van" but responded linearly with increasing dosage of GA3 for the cultivar `Lapins". The maturity was delayed with half a week for "Van" and about one week for `Lapins" for all GA3 treated trees. The content of soluble solids was in general high and independent of the different treatments. Fruit size, firmness or soluble solid content were not influenced after storage and had market quality still after 10 days in cold store.