Effects of crop development on the emission of volatiles in leaves of Lycopersicon esculentum and its inhibitory activity to Botrytis cinerea and Fusarium oxysporum.

Volatiles emitted from the leaves of Lycopersicon esculentum at the two-, ten-leaf and anthesis periods were collected by a gas absorbing method and analyzed by gas chromatography (GC)-mass spectrometry. In total, 33 compounds of volatiles emitted from three developmental stage plants were separated and identified, and quantitatively analyzed by the internal standard addition method. All of the samples of volatile were found to be rich in monoterpenes and sesquiterpenes.