Summary
This experimental study demonstrated that glucosinolate concentration in oilseed rape seeds and seedlings provides protection against slug damage. The number and leaf-area of seedlings exhibiting damage symptoms were strongly and inversely related to total glucosinolate concentration, whilst seedling mortality showed no such relationship. The authors conclude that declining glucosinolate concentrations in modern oilseed rape cultivars may increase vulnerability to slug herbivory.
Regional applicability
The study was conducted in the United Kingdom and employed a common UK agricultural pest (Deroceras reticulatum), making findings directly applicable to British oilseed rape cultivation. The results have clear implications for pest management and cultivar selection in UK arable farming.
Key measures
Seedling numbers, leaf-area of damaged seedlings, total glucosinolate concentration in seeds and one-week-old seedlings, individual glucosinolate compound concentrations (gluconasturtiin, glucobrassicin, and others)
Outcomes reported
The study measured seedling damage (number and leaf-area of damaged seedlings) and seedling mortality in oilseed rape cultivars exposed to the field slug Deroceras reticulatum, and correlated these outcomes with glucosinolate concentrations in seeds and seedlings.
Topic tags
Dig deeper with Pulse AI.
Pulse AI has read the whole catalogue. Ask about this record, its theme, or how the findings apply to UK farming and policy — every answer cites the underlying studies.