摘要
本文报导了细基江蓠繁枝变型(新变型)的生长与比重的关系，细基江蓠繁枝变型生长的适宜比重为1．005—1．015，最适宜的比重为1．010。比重在1．020以上时，生长下降。细基江蓠繁枝变型的小枝(长为1cm和3cm)也是在1．010时生长最好。但1cm小枝的增长率和单应长度上长出的分枝数目、长度都比3cm的小枝好。
This paper deals with the result of preliminary study of the relationship between the growth of G.tenuistipitata and the specific gravity of sea water. The range of suitable specific gratify is 1.005 to 1.015,and the optimum specific gravity is 1.010.When the specific gravity is more than 1.020, the growth of G.tenuistipitata decreases.The branchlet(1to 3cm in lenght) of G.tenuistipitata also grows well when the specific gravity is 1.010,but the growth rate including the amount of branches per unit of lenght and the size of the branchlet in 1cm lenght is better than the branchlet in 3cm lenght.
