Abstract
This paper tests the proposition that the potential for regrowth in a herb after defoliation is likely to be large even in species with well-developed chemical defence, and unlikely to be dependent on a high root/shoot ratio, and also tests the degree to which various factors affect the extent of compensation. The response to simulated herbivory was studied in the annual Senecio vulgaris in a ten-week glasshouse experiment during summer. The following factors were considered : extent of defoliation(0, 25, 50, and 75% of leaf area), availability of mineral nutrients (three levels), timing of defoliation (two stages) and age of tissue removed (young vs old leaves) (...)
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