Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Ketil Kohmann"'
Publikováno v:
Frontiers in Plant Science, Vol 14 (2023)
The large pine weevil (Hylobius abietis) is a major regeneration pest in commercial forestry. Pesticide application has historically been the preferred control method, but pesticides are now being phased out in several countries for environmental rea
Externí odkaz:
https://doaj.org/article/5e642dcbde61425caa3fc4be19f43121
Autor:
Øystein Johnsen, Ketil Kohmann
Publikováno v:
Scandinavian Journal of Forest Research. 22:375-383
The object of this study was to obtain Norway spruce seedlings with buds set, ready for summer planting from 1 July. An early long-night treatment prevented flushing of the newly formed terminal buds and ceased height growth, but slightly reduced har
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab0fdaf97e1553681b151971d3ac5479
https://doi.org/10.1080/02827580701520486
https://doi.org/10.1080/02827580701520486
Autor:
Ketil Kohmann
Publikováno v:
Scandinavian Journal of Forest Research. 21:196-200
Feeding by the tarnished plant bug (Lygus rugulipennis Popp.) has caused severe damage in Norwegian nurseries. Large quantities of seedlings have been removed after sorting. The life cycle of the insect has been well studied and documented. This stud
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c36873b30cec616ccf8b6b4e427d1e64
https://doi.org/10.1080/02827580600741696
https://doi.org/10.1080/02827580600741696
Autor:
Ketil Kohmann, Inger Sundheim Fløistad
Publikováno v:
New Forests. 27:1-11
When spring frosts occur on recently planted forest sites, severe damage may occur to the seedlings. The aim of the present study was to test how different low levels of nutrient concentrations in Norway spruce (Picea abies (L.) Karst.) seedlings aff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8dd9cbec81113d70d9517babf612b2dc
https://doi.org/10.1023/a:1025085403026
https://doi.org/10.1023/a:1025085403026
Autor:
Ketil Kohmann, Isabella Børja
Publikováno v:
Scandinavian Journal of Forest Research. 17:111-117
Cleaning of containers to counteract infection that might cause root dieback should remove old, adhering media and roots which may harbour pathogens. This study investigated seedling growth and the number of viable fungal propagules retained on the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::383b776fab057898ab2db8888a843562
https://doi.org/10.1080/028275802753626755
https://doi.org/10.1080/028275802753626755
Autor:
Inger Sundheim Fløistad, Ketil Kohmann
Publikováno v:
Scandinavian Journal of Forest Research. 16:30-36
The effect of different thawing procedures on seedling quality in Norway spruce (Picea abies) was evaluated. Freezer-stored seedlings were thawed rapidly for 20 h by immersion in water with an initial water temperature of 8°C or thawed more slowly b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::988082de74dfee7dab772809389a7eb5
https://doi.org/10.1080/028275801300004389
https://doi.org/10.1080/028275801300004389
Autor:
Ketil Kohmann
Publikováno v:
Scandinavian Journal of Forest Research. 14:355-360
Side - effects of the permethrin formulations Gori 920 and Gori 920 L, the fenvalerate formulation Sumicidin 10 FW and the emulsifier of the Gori formulations were studied in seedlings of Norway spruce [Picea abies (L.) Karst.]. Whole plant treatment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::815feaa83151ff25678fd940417413be
https://doi.org/10.1080/02827589950152674
https://doi.org/10.1080/02827589950152674