@book{bhlitem16680, title = {Plant physiology, with special reference to plant production }, copyright = {Public domain. The BHL considers that this work is no longer under copyright protection.}, url = {https://www.biodiversitylibrary.org/item/16680}, note = {https://www.biodiversitylibrary.org/bibliography/1656}, publisher = {New York, The Macmillan company, 1911}, author = {Duggar, Benjamin M. (Benjamin Minge),}, year = {1911}, pages = {552}, keywords = {Plant physiology}, }