J. Penuelas et J. Llusia, INFLUENCE OF INTRA-SPECIFIC AND INTER-SPECIFIC INTERFERENCE ON TERPENE EMISSION BY PINUS-HALEPENSIS AND QUERCUS-ILEX SEEDLINGS, Biologia plantarum, 41(1), 1998, pp. 139-143
Seedlings of two common Mediterranean trees, Pinus halepensis L. and Q
uercus ilex L., were grown alone and together with seedlings of the sa
me or of the other species in the same pot during one year to test the
effects of intra- and inter-specific interference on terpene emission
. Light, nutrients and water were amply supplied. There were higher em
ission rates in P. halepensis than in Q. ilex. The emission increased
when the neighbour was a pine and decreased when the neighbour was a h
elm oak. Volatile organic compound and terpene emission rates followed
inverse trends to foliar biomass or growth, which decreased when the
neighbour was a pine.