TY - JOUR T1 - Studies on Photosynthetic and Fluorescence Characteristics of Young and Mature Magnolia officinalis AU - Zhang, Meng AU - Zhuang, Guoqin AU - Qin, Xiaoxu AU - Chen, Xia AU - Gu, Yunjie AU - Li, Xiaoqing JO - Agricultural Journal VL - 9 IS - 2 SP - 108 EP - 112 PY - 2014 DA - 2001/08/19 SN - 1816-9155 DO - aj.2014.108.112 UR - https://makhillpublications.co/view-article.php?doi=aj.2014.108.112 KW - Magnolia officinalis KW -photosynthetic characteristics KW -fluorescence characteristics KW -NPQ KW -comparitive analyzig AB - The 1 year and 5 years old M. officinalis cultivated in Linfeng Village Beichuan county were detected using the Li-6400XT and PAM-2500 in a sunny day. The results showed that Photosynthetic rate (Pn), Transpiration rate (Tr), stomatal conductance (Gs), NPQ and Fv/Fm of 5 years old M. officinalis were higher than that of 1 year old M. officinalis. The 5 years old M. officinalis was thought to be a better suitable for wider living site after comparative analyzing both the photosynthetic and fluorescence parameters. ER -