Effect
Trainer treated Perennial wall rocket, cv. Nature, showed significantly increased total yield (+50.7%) and increased total dry biomass (+41.8%) as an average across three harvests, compared to untreated control plants. Biostimulant treated plants showed significantly increased SPAD index (+15.3%), no significant difference in CIELAB colour space parameters, no difference in nitrogen (N) (+2.7%), no difference in phosphorous (P) (-12.1%), increased calcium (Ca) (+30.7%), no difference in sodium (Na) (+12.9%), no difference in chlorophyll (+28.4%), no difference in nitrate (+12.6%), no difference in total phenols (+12.6%) and no difference in total ascorbic acid (+42.1%)in harvests II or III, compared to untreated control plants. Biostimulant treated plants showed significantly increased potassium (K) (av: +26.5%) and increased magnesium (av: +23.4%) in harvest III, but not harvest II, compared to untreated control plants.
