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Environmental Preconditioning, with Special Reference to Forestry
Author(s) -
Rowe J. Stan
Publication year - 1964
Publication title -
ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.144
H-Index - 294
eISSN - 1939-9170
pISSN - 0012-9658
DOI - 10.2307/1933860
Subject(s) - ecology , forestry , geography , environmental science , environmental resource management , biology
In the morphogenesis of the plant, early ecological influences (and just how early is not known) can carry through to expression in later stages of development and behaviour; therefore, phenotypic expression is frequently to be understood most simply in the context of preconditioning. Examples from the literature emphasize that the immature seed is preconditioned by the milieu of the parent plant, that past climatic conditions influence phenology, and that flowering is frequently triggered by early—acting environmental signals. The possible role of Preconditioning in three aspects of forest science—provenance trials, tree seed orchards, and acclimatization–is examined, and the conclusion is drawn that ecological preconditioning is a fertile field for stury and experimentation.