
TY  - JOUR
A1  - Mckee, HS 
A1  - E Urbach, Gerda 
T1  - The Physiology of Growth in Apple Fruits V. Soluble Nitrogen Constituents
JF  - Australian Journal of Biological Sciences
JO  - Aust. Jnl. Of Bio. Sci.
Y1  - 1953
VL  - 6
IS  - 3
SP  - 369
EP  - 378
KW  - 
UR  - https://doi.org/10.1071/BI9530369 
N2  - The ninhydrin-reacting compounds of the apple fruit have been studied during its development on the tree. The compounds present show little variation, but glutamine, conspicuous in very young and in over-mature apples, disappears at intermediate stages. The increase in soluble nitrogenous compounds occurring in over-mature apples left on the tree (Pearson and Robertson 1953) is confirmed qualitatively. An account is given of the chromatographic behaviour of several unidentified ninhydrin-reacting substances found in extracts of apple fruits, leaves, and stems. 
ER  -

