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
Since the formation of the International Herbage Seed Group (IHSG, formerly IHSPRG) in 1978, International Herbage Seed Conferences have been organized, mostly at four year intervals. The Sixth Conference was held at Gjennestad Horticultural College in Vestfold, Norway, from 18 to 20 June 2007. As for other IHSG activities, the objective of the conference was ‘to encourage cooperation and communication between workers actively engaged in herbage seed production research’. About 80 delegates from 20 countries attended the conference. Four invited and almost sixty voluntary papers were presented, either orally or as posters. The topics were split into the following sessions: 1. Opening session with overview over herbage seed production and seed trade, world wide. 2. Herbage seed for the future: Biodiversity, GMOs and the role of seed yield capacity in herbage breeding programs. 3. Seed production of tropical species and species for stressful environments. 4. Physiological restraints to seed set and seed filling. 5. Establishing the potential for high and pure seed yields. 6. Fertility, plant growth regulators, and plant protection. 7. Statistical methods, seed harvest, and post-harvest issues.
Forfattere
Trygve S. Aamlid Arild Andersen Rolf Skuterud Gunvald Henning JonassenSammendrag
The application of insecticides and / or chemical growth regulators for the control of arthropod-induced silvertops (whitetops) and / or lodging in seed crops of common bent (syn. browntop, US: colonial bentgrass, Agrostis capillaris L. syn. A.tenuis Sibth.) `Leikvin" was investigated in twelve on-farm trials laid out according to five different experimental plans in SE Norway from 1993 through 1997. Seed yields on plots sprayed with insecticides were significantly higher than on unsprayed control plots in three out of nine trials, however, these seed yield increases were poorly correlated with silvertop frequencies which varied from 1 to 60% on untreated plots. Differences between various insecticides (two pyretroids and one organophosphorous compound) and single versus split applications were mostly not significant. While seed yields on plots sprayed with ethephone ("Cerone", 0.5 kg a.i. ha-1) were not significantly different from those on unsprayed control plots, chlormequat chloride ("CCC 750", 1.0 or 2.0 kg a.i. ha-1 plus surfactant) minimised lodging and increased seed yield by 21% on average for five trials. When chlormequat chloride and the pyretroid alphacypermethrin were combined in a tank mixture including surfactant at Z 31-32, the effects of the two products were mostly additive. Based on these results, the application of the growth regulator chlormequat chloride (1.0 kg a.i. ha-1) is now recommended in Norwegian seed production of common bent. Although the effects of insecticides were often not significant, seed growers are further advised to add an insecticide (e.g. alphacypermethrin, 150 g a.i. ha-1) to the growth regulator as a precaution against silvertops, which otherwise seem to strike quite randomly in seed production of common bent.
Sammendrag
Tiller demography and contribution to seed yield were studied in first year seed crops of smooth bromegrass (SB, Bromus inermis ‘Lofar’) and meadow fescue (MF, Festuca pratensis ‘Salten’) planted on different dates and with increasing plant densities (A: 15 Jun. / 11 plants m-2, B: 15 or 30 July / 44 plants m-2, C: 15 August or 10 September /178 plants m-2) in field trials at Landvik, SE Norway. While the total tiller population in most crops increased until seed harvest, it decreased during panicle elongation in crops of SB and MF that had reached 2000 and 3500 tillers m-2 in early spring, respectively. Except for the fact that many of the primary tillers of SB died after producing barren stems, tillers formed in August and September had the greatest chance of becoming reproductive and produced the heaviest inflorescences in both species. Most tillers produced in winter or early spring either remained vegetative or died, but spring-emerging tillers contributed up to 30% of the total seed yield in early-established, low-density crops of MF. It is concluded that spring-emerged tillers contribute more to seed yield in MF than in SB and more in seed crops established early at low plant density than in crops established late at higher density.
Forfattere
Trygve S. Aamlid Lars Tørres HavstadSammendrag
Tiller demography and contribution to seed yield were studied in first year seed crops of smooth bromegrass (SB, Bromus inermis `Løfar") and meadow fescue (MF, Festuca pratensis `Salten") planted on different dates and with increasing plant densities (A: 15 Jun. / 11 plants m-2, B: 15 or 30 July / 44 plants m-2, C: 15 August or 10 September /178 plants m-2) in field trials at Landvik, SE Norway. While the total tiller population in most crops increased until seed harvest, it decreased during panicle elongation in crops of SB and MF that had reached 2000 and 3500 tillers m-2 in early spring, respectively. Except for the fact that many of the primary tillers of SB died after producing barren stems, tillers formed in August and September had the greatest chance of becoming reproductive and produced the heaviest inflorescences in both species. Most tillers produced in winter or early spring either remained vegetative or died, but spring-emerging tillers contributed up to 30% of the total seed yield in early-established, low-density crops of MF. It is concluded that spring-emerged tillers contribute more to seed yield in MF than in SB and more in seed crops established early at low plant density than in crops established late at higher density.
Forfattere
Espen Govasmark Bal Ram SinghSammendrag
For å maksimere kornets innhold av selen (Se) så bør Se gjødsling som selenat skje ved stengelstrekking, delt nitrogen (N) gjødsling vil øke kornets Se innhold sett i forhold til å gi alt Se ved såing, og plantens tilgjengelighet av sulfat bør være lavt for å øke remobiliseringen av Se fra vegetativt plantemateriale til hvetekorn.
Forfattere
Eivind VangdalSammendrag
Det er eit stort forbetringspotensial i norsk plommeproduksjon og omsetning dersom ein kan hausta og marknadsføra meir einsarta plommeparti. Dette krev at dyrkarane har ei felles forståing av rett haustetid, og at ein med maskinell sortering kan sikra einsarta parti av plommer med klårt definerte kvalitetseigenskapar.
Forfattere
Eivind VangdalSammendrag
Det er eit stort forbetringspotensial i norsk plommeproduksjon og omsetning dersom ein kan hausta og marknadsføra meir einsarta plommeparti. Dette krev at dyrkarane har ei felles forståing av rett haustetid, og at ein med maskinell sortering kan sikra einsarta parti av plommer med klårt definerte kvalitetseigenskapar.
Sammendrag
I enkelte tilfeller settes det krav til at toalettavløp og gråvann skal behandles separat. Ved bruk av biologiske filtre for gråvann eller annen type gråvannsrenseanlegg, vil det være behov for separat toalettløsning. Spesielt er denne kombinasjonen ofte benyttet på fritidsboliger, men det kan også være behov for separat toalettløsning for helårsboliger i visse områder. For helårsboliger benyttes i de fleste tilfeller WC til tett tank, alternativt biologisk toalett. For fritidsboliger vil det være et mye større utvalg av separate toalettløsninger som kan være aktuelle. Den type kombinasjonsløsninger kan gi svært lave utslipp, men krever noe større oppfølging av brukerne enn andre separate anlegg.
Forfattere
Åge Arild NyborgSammendrag
Det er ikke registrert sammendrag
Sammendrag
Berber er en ’ny’ nederlandsk sort som har vært med i norske verdiprøvingsfelt noen år, og er den av de nye utenlandske sortene som en har fattet størst interesse for.