TY  - JOUR
A1  - Baumann, Ingrid
A1  - Eckermann, Nora
T1  - Ploidy level and chlorophyll content of single plastids and cells from callus cultures during conversion to autotrophic growth
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Baumann, Ingrid
A1  - Eckermann, Nora
A1  - Krause, Udo
A1  - Baumann, Guido
T1  - Effects of sucrose in the culture medium on cytological characteristics, pigments and photosynthetic activity of green callus cultures of sugar beet
Y1  - 1994
ER  -