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Free keywords:
Betula pendula; carbon/nutrient balance; clonal variation;
defoliation; fertilization; flavonoids; induced defense;
phenolic compounds; plant-herbivore interaction; secondary
metabolism; tannins
Carbon-nutrient balance; phenylalanine ammonia-lyase; alaska
paper birch; delayed inducible resistance; betula-pendula roth;
secondary metabolites; nitrogen-fertilization; insect
herbivory; plant defense; phenylpropanoid accumulation
Abstract:
We examined the chemical responses of 10 silver birch (Betula pendula) clones to fertilization and defoliation in a held experiment. In defoliation, every second leaf was removed from the saplings. Three days later, two undamaged short-shoot leaves were