Chemical and mechanical defenses vary among maternal lines and leaf ages in Verbascum thapsus L. (Scrophulariaceae) and reduce palatability to a generalist insect.

PLoS One · 2014 · PMC4134248 · PMID 25127229

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marginally significantno p-value reported

The percent dry weight of total iridoid glycosides (aucubin + catalpol) showed a marginally significant decline with age ( Figure 1c ; Table 1 ).

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