Effect
No effect on produce quality
Super Shot-40 + Super PGA VII Plus treated Short-day onion, cv. Pegasus/Wannamaker, grown in a field had on average a 4 % lower yield, a 4.2 % smaller bulb diameter, 54.5 % more onions in the jumbo class, onions, had a 6.9 % higher pungency, 3.5 % more soluble solids (% sugars) and a 0.5 % higher marketable yield after storage as compared to the untreated control (only water treatment). (Results were not significant)
Trial details
outdoor, unprotected, soil grown, usual cultivation
USA
Crop
Onion, Allium cepa L.
Trial application
Method
Transplant dip + foliar spray
Timing
First experiment: Transplant dip, followed by a first foliar application 21 days later, followed by 8 treatments with a 10-days interval. Second experiment: Transplant dip only with Super PGA VII Plus, followed by a first spray 3 months later, followed by
Rate
First experiment: mixture of 12.5 mL/L Super Shot-40 + 3.1 mL/L Super PGA VII Plus. (Dip for 2 minutes); Second experiment: dip in 4.7 mL/L Super PGA VII Plus, foliar sprays with mixture of 3.9 mL/L Super Shot-40 + 12.5 mL/L Super PGA VII Plus
2001
Evaluation of Growth Stimulants on Short-day Onions
HortTechnology
11
38-42
Crop group
