Taulavuori Kari, Taulavuori Erja, Niinimaa Ahti, Laine Kari
Department of Biology, University of Oulu, P.O. Box 3000, 90014, Oulu, Finland.
Finnish Forest Research Institute, Muhos Research Station, Kirkkosaarentie 7, 91500, Muhos, Finland.
Oecologia. 2001 May;127(3):321-323. doi: 10.1007/s004420100661. Epub 2001 May 1.
Vaccinium vitis-idaea L. plants were grown in open-top chambers in northern Finland under CO enrichment (600-700 ppm) with or without elevated (double ambient) O. Half of the plants received ammonium nitrate fertilizer equivalent to 200 kg N ha year. Frost hardiness during the period of frost hardening was determined three times after the end of the experiment, at the beginning of August, September and October. The results indicate that frost hardening of the Vaccinium vitis-idaea is accelerated by N fertilization. However, CO and O enrichment had no measurable effect on frost hardiness.
