@article{b2f737d84b424c6c9aff231da8fe2e91,
title = "Leaf age-related differences in apoplastic NH4+ concentration, pH and the NH3 compensation point for a wild perennial",
keywords = "PLANT SCIENCES",
author = "P.W. Hill and J.A. Raven and M.A. Sutton",
year = "2002",
month = feb,
day = "1",
doi = "10.1093/jexbot/53.367.277",
language = "English",
volume = "53",
pages = "277--286",
journal = "Journal of Experimental Botany",
issn = "0022-0957",
publisher = "Oxford University Press",
number = "367",
}