@article{MUNTEAN_SALONTAI_BOTEZ_TAMAS_CERNEA_MORAR_VAIDA_1991, title={Research on the biology of Echinacea pallida Nutt. and Echinacea purpurea (L.) Moench (II)}, volume={21}, url={https://www.notulaebotanicae.ro/index.php/nbha/article/view/275}, DOI={10.15835/nbha211275}, abstractNote={In the second year of vegetation, after emergence, Echinacea pallida Nutt. and Echinacea purpurea (L.) Moench, form a leaf rosette and the first floral shoots appear in June. Plant vigour is significantly higher in Echinacea purpurea than in E. pallida, saved for roots. E. pallida is tetraploid, 2n=4x=44 chromosomes, of small size, between 5,87 and 3,04 microns, relatively easy to individualize by their shape and size.}, number={1}, journal={Notulae Botanicae Horti Agrobotanici Cluj-Napoca}, author={MUNTEAN, Leon Sorin and SALONTAI, Alexandru and BOTEZ, Constantin and TAMAS, Mircea and CERNEA, Solovastru and MORAR, Gavrila and VAIDA, Felicia}, year={1991}, month={Aug.}, pages={63–72} }