EFFECTS OF CO2 CONCENTRATION ON PLANT GROWTH, CONTENTS AND COMPONENTS OF ESSENTIAL OIL IN FENNEL (FOENICULUM VULGARE)
REN An-Xiang, HE Jin-Ming, XIAO Yan-Hui, WANG Yu-Mei
Chin J Plant Ecol . 2008, (3): 698 -703 .  DOI: 10.3773/j.issn.1005-264x.2008.03.020