@article{LI Zuo-Dong:320, author = {LI Zuo-Dong, LIU Jing-Xuan, HUANG Shuang-Quan*}, title = {A comparison of several methods used in the field for nectar collection and concentration analysis
}, publisher = {J Syst Evol}, year = {2006}, journal = {Journal of Systematics and Evolution}, volume = {44}, number = {3}, eid = {320}, numpages = {6}, pages = {320}, keywords = {Floral nectar; nectar collection; sugar analysis; microcapillary tube; hand-held refractometer; pollination biology}, url = {https://www.jse.ac.cn/EN/abstract/article_15929.shtml}, doi = {10.1360/aps050007} }