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Some factors affecting viability, dormancy, and germination of Primula veris (L.) seeds

Maria Morozowska

Department of Botany
Poznań August Cieszkowski Agricultural University
Wojska Polskiego 71C, 60-625 Poznań, Poland
e-mail: mariamor@owl.au.poznan.pl

Primula veris seeds collected from natural populations were tested for their germinability. They exhibited very low germination when maintained on moistened filter paper. The aim of the study was to examine the effect of GA3 treatment, different germination temperatures, and prechilling on breaking dormancy, and to determine the best conditions for the germination of seeds. Treatment of the seeds with two concentrations of GA3 (0.9×10-3M and 1.8×10-3M) promoted germination of seeds significantly more at 10°C than at 20°C. At a temperature of 10°C from 92.6% to 99.3% of seeds germinated, and at a temperature of 20°C from 63.3% to 92.0% of the examined seeds. The preliminary prechilling increased both the final percentage of germination attained and also its rate of achievement. Treatment of the GA3 solution in dimethyl sulphoxide induced germination from 34.6% to 98.0% of tested seeds.

Morozowska M., 2002. Some factors affecting viability, dormancy, and germination of Primula veris (L.) seeds. Folia Horticulturae 14/1: 243-253.