TY  - JOUR 
T1  - Interaction between sucrose and pH during in vitro culture of Nephrolepis biserrata (Sw.) Schott (Pteridophyta)
JO  - Acta Botanica Brasilica
A1  - Ambrósio, Sandra Tereza
A1  - Melo, Natoniel Franklin de
SN  - 0102-3306
UL  - 10.1590/S0102-33062004000400011
VL  - 18 
Y1  - 2004
PB  - Brasil 
ER  -