Average quantities (in ng; mean ± s.e; n = 12) of volatiles compounds collected in the field from the headspace of infested maize plants belonging to six different inbred lines.

The compounds are arranged in order of increasing retention time. Identifications based on mass spectra (MS) alone must be considered tentative. When an authentic standard was available, retention time (RT) served as additional criterion. For comparative purposes, coefficients r (Pearson product moment correlations) and the respective probabilities p are given for correlations with average amounts of volatiles (n = 6) obtained from collections carried out in a six-arm olfactometer (means of log-transformed values).