OBSERVATIONS ON THE GROWTH OF DIFFERENT PART OF PLANT SEGMENTS OF GRACILARIA ASIATICA SP. NOV.
江蓠主枝不同部位的生长观察

The plant segments of Gracilaria are capable of growing up new plants when it detached from the fronds. We observed the growth of plant segments of Gracilaria asiatica sp. nov. by culturing apical, median and basal segments cut one meter in length from the main branches in laboratory. The results of the experiment are summarized as follows: 1. The growth rate of different part of plant segments is different. The apical segments of main branches grow more evidently than the median and basal segments. 2. The regenerate branchlets spring only at the fronting end towards the tip of branches. 3. The method of culturing the plant segments in laboratory could be applicable for mariculture.