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.
1999
Forfattere
jihong liu clarke Anne Marie Chevre Maria Landgren Kristine GlimeliusSammendrag
Abstract Cytogenetic studies were performed on four male-sterile progenies derived from four different cybrids produced between Brassica napus and B. tournefortii using the donor-recipient protoplast fusion method. The objective of these studies was to characterize the nuclear constitution of the plants. Mitotic investigation revealed that three of the four male-sterile lines had 38 chromosomes, which is equal to that of B. napus. The fourth line, C6, had variable chromosome numbers, ranging from 39 to 42 in different plants. The meiotic behavior in each progeny varied distinctly. Of the plants having 38 chromosomes, fairly high chromosome pairing, on average 18.08 bivalents per cell, was detected at metaphase-I. However, univalents with an average of 1.39 per cell, and very low frequencies of trivalents and/or tetravalents, were also observed in the lines. These results revealed that male-sterile cybrid lines were obtained with 38 chromosomes and a relatively high level of chromosome-pairing ability, indicating their potential for establishing a stable male-sterile rapeseed line.
Forfattere
Vladimir StolbovoiSammendrag
Det er ikke registrert sammendrag
Forfattere
J. Pomeroy R. Granger A. Pietroniro J. Elliott B. Toth N. HedstromSammendrag
Det er ikke registrert sammendrag
Forfattere
Jan Mulder J.F. Gallardo E. Matzner Edward Tipping Charlotte Bryant Nicholas Clarke S. Lofts B. Michalzik M.A. VicenteSammendrag
Det er ikke registrert sammendrag
Redaktører
Tore SkrøppaSammendrag
Det er ikke registrert sammendrag
Forfattere
Oddvar Skre M. NæssSammendrag
Det er ikke registrert sammendrag
Forfattere
Oddvar SkreSammendrag
Seedlings of white birch seem to tolerate high winter temperatures to a higher degree than spruce seedlings, and were also more able to take advantage of elevated CO2 levels. Large differences were observed between provenances in response patterns. The southern provenance of birch was more tolerant against raised winter temperatures than the northern ecotype, and the southern spruce provenance seemed to differ from the two northern provenances in the same way. The Icelandic birch population seemed to have developed a low-growth strategy with strong CO2 acclimation and no significant CO2 responses in photosynthetic rates and growth parameters. This differing response may be explained by long-term selection pressure due to heavy grazing. One of the spruce provenences showed a similar pattern.
Forfattere
M. Haapanen J. Mikola S. Ruotsalainen M. VenäläinenSammendrag
Det er ikke registrert sammendrag
Forfattere
D. Lindgren Tim J. Mullin Y.Q. ZhengSammendrag
Det er ikke registrert sammendrag
Forfattere
Sharon FriedmanSammendrag
Det er ikke registrert sammendrag