| [chlorophyll content and net photosynthetic rate of machilus pauhoi and m. leptophylla]. | by using spad-502 chlorophyll meter, li-6400 portable photosynthesis system, and spectrophotometer, the leaf spad value, net photosynthetic rate (pn), and chlorophyll (a + b) content (ct) of 3-year-old machilus pauhoi and m. leptophylla seedlings were measured, and the relationships of spad value with pn and ct were analyzed. the m. pauhoi seedlings were grown from the seeds originated from suichuan county of jiangxi province and jian'ou county of fujian province, named as mps and mpj, respectiv ... | 2009 | 19459363 |