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.
2006
Sammendrag
Denne artikkelen gir en oversikt over forsøk som er gjort med biologisk kontroll av gråskimmel i jordbær og gir noen eksempler av viktigheten av temperatur og næring for effekten av nyttesoppene.
Sammendrag
Denne artikkelen beskriver forsøk med ulike sopparter (isolert fra jordbærplanter) som kunne ha et potensiale som nyttesopper (biologisk kontroll) mot gråskimmel i jordbær. Epicoccum nigrum og Aureobasidium pullulans ga redusert råtning (gråskimmel) et år, mens ingen av de potensielle nyttesoppene reduserte råtningen året etter.
Sammendrag
Artikkelen skildrar effekten av klimatiske tilhøve (nedbør og temperatur) før sporekastinga tar til om våren på sporemodninga/sporekastinga seinare i sesongen hos epleskurvsoppen. Di fuktigare klimaet er siste månaden før sporekastinga tar til (som regel rundt grøn spiss), di større mengde sporar vert kasta tidleg i sesongen. Data er basert på innsamla bladverk med soppsmitte frå 11 ulike land.
Sammendrag
Artikkelen skildrar ein metode for å tilpassa ein modell for modning av askosporar til aktuell sporekasting ved å stoppa sporemodninga etter eit visst tal dagar uten nedbør.
Sammendrag
Monilinia laxa, M. fructigena and M. fructicola cause brown rot of stone and pome fruits, which result in considerable economic losses. M. fructigena causes fruit decay in both pome and stone fruit, while M. laxa causes blossom wilt, twig blight, canker and fruit rot on stone fruit. A special form of the fungus, M. laxa f.sp. mali, is found only in apple, where it causes blossom wilt, spur-kill and canker. M. fructicola is a quarantine pathogen in the EU, and it is thus of important to have reliable identification methods and to monitor the population of these fruit pathogens. More than 90 isolates of Monilinia spp. from the main fruit producing districts in Norway was collected. The isolates originated from cherry, plum, apple, apricot and peach. They were identified by growth characteristics in culture according to EPPO standards (EPPO Bull 33: 245-47) and by a multiplex PCR method (Côté (2004) Plant Disease 88:1219-1225). Thus far, the quarantine organism M. fructicola has not been detected in Norway. M. laxa and M. fructigena were isolated from plum, apricot, cherry and apple, however in apple M. fructigena was isolated only from fruits and M. laxa only from infected fruit spurs (generative shoots). In peach only M. laxa was detected. Genetic variation among the isolates is currently being examined using AFLP.
Sammendrag
Foredragsamling fra Workshop om Integrated Soft Fruit Production i Stavanger 5-7 oktober 2005
Forfattere
Ricardo Holgado Stig Andersson Christer MagnussonSammendrag
Cereal cyst nematodes, Heterodera spp., are known worldwide as parasites of cereals and grasses. Surveys of cereal fields in Norway have revealed that nematodes belonging to the H. avenae complex occur throughout the country, and that H. avenae (the oat cyst nematode) is the most common species, followed by H. filipjevi (the rye cyst nematode). Both species are of economic importance in Scandinavia. H. avenae has been found in two common pathotypes, Ha 11 and Ha 12. Work in Sweden, however, has detected three additional pathotypes, H. avenae "Knislinge", H. avenae "Ringsåsen" and H. avenae "Våxtorp". These pathotypes were found also in the Norwegian surveys. In Sweden H. filipjevi has two pathotypes, "East" and "West". In Norway, only pathotype "West" has been detected so far. Nematode management practices must be based on the knowledge of the relationship between initial nematode density and yield, the population dynamics, and the measures capable of reducing or keeping the population density below the threshold for economic damage. Crop rotation and the use of cultivars with resistance are important measures for controlling cereal cyst nematodes. Several cereal cultivars with resistance to H. avenae are on the market. As to H. filipjevi, resistance may be found in some commercial cultivars, although no intentional breeding for resistance against this nematode species has been attempted. In 2004 and 2005 the majority of the cereal cultivars on the Norwegian market were tested for susceptibility/resistance towards H. avenae pathotype Ha 11, H. avenae pathotype "Våxtorp" and H. filipjevi pathotype "West". Management systems, based on careful nematode identification and good knowledge of appropriate resistant cultivars, are in operation in Norway. Resistant barley is generally recommended when nematode populations are high due to its high tolerance compared to resistant oats. Farmers implementing this program have reported increased cereal yields on the average of 1000 kg /ha. It has been calculated that by implementing this program in full the county of Vestfold could make an economic gain of 800 000 " annually.
Forfattere
Kari ØrstadSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Kort rapport frå fagmøte i England om plasttypar og moglegheiter for utvida sesong av bær under tunneldekke.