Optimization of cultural conditions of Bellerochea malleus

The paper studied effects of temperature，illumination intensity，salinity and nutrients on the growth and reproduction of Bellerochea malleus by one-factor experiment and orthogonal experiments．Results showed that the suitable water temperature was 15-35℃ and the optimal water temperature was 30℃．The suitable and optimal illumination intensity were respectively 1 000-8 000 lx and 4 000 lx．The suitable salinity was 5-50 and the optimal salinity was 35．The optimal prescription for culture solution was as follows：NaNO3-N 20.0 mg/L，NaH2PO4-P 1.0 mg/L，FeSO4-Fe 0.1 mg/L，Na2SiO3-Si 15.0 mg/L，Na2MoO4 0.02 mg/L，VB1 1.0 mg/L and VH 0.05 mg/L.