A Measuring of growth quantity (测生长量) Direct measuring(直接法) 1. volumetry 2. dry weight weighing Indirect measuring(间接法) 1, physiological index生理指标法 nitrogen content indexes carbon content P DNA RNA ATP DAP chitin etal 2. turbidimetry( nephelometry)比浊法A. Measuring of growth quantity （测生长量） ◼ Direct measuring (直接法) 1.volumetry 2. dry weight weighing ◼ Indirect measuring(间接法) 1. physiological index 生理指标法 nitrogen content indexes carbon content P, DNA, RNA, ATP, DAP, chitin etal. 2. turbidimetry (nephelometry)比浊法