A +9.0% teen-leaf lettuce uplift from a single seed application
+9.0%
+12.8%
1
Trial Summary
The UK Agri-Tech Centre evaluated Overture® A in teen-leaf lettuce in its research glasshouse at the Stockbridge Technology Centre, in a deep water culture system set up to replicate commercial production. A commercial teen-leaf variety was sown into peat blocks, propagated for 12 days, then transplanted into deep water culture ponds and harvested 28 days after sowing.
Overture® A was applied once only, as a spray onto the seeds at sowing. Treated and untreated plants were grown alongside one another across thirty ponds under identical conditions, with five ponds per treatment and 25 plants per pond. At harvest, the trial centre weighed every plant individually.
Conclusions
A single seed application of Overture® A increased mean fresh head weight by +9.0% compared with untreated plants, from 15.0 g to 16.4 g per head. Treated plants were heavier in four of the five replicate blocks.
Head dry weight, measured on 25 heads per treatment, was +12.8% higher than in untreated plants.
Overture® A shifted the whole crop upwards. 32% of treated heads weighed 18 g or more, against 18% of untreated heads, and half as many treated heads fell below 12 g (10% against 19%). Leaf colour and foliar nutrient levels were comparable to untreated plants.
For growers, the result came from one application at sowing, with no extra handling after transplanting.
