Effect
Increased cold stress tolerance
Increased heat stress tolerance
Pepton 85/16 treated Lettuce, cv. Arena, grown in a greenhouse and subjected to a heat treatment of 2 h had on average 7 % more fresh weight, 17.4 % more dry weight, a 13.3 % bigger specific leaf area and a 132.3 % higher relative growth rate compared to the untreated control subjected to the same conditions. The highest dose gave the best effect. Pepton 85/16 treated Lettuce, cv. Arena, grown in a greenhouse and subjected to a cold treatment of -3 °C for 4 h had on average 12.3 % more fresh weight, 32.9 % more dry weight, a 8.5 % bigger specific leaf area and a 96.4 % higher relative growth rate compared to the untreated control subjected to the same conditions. The highest dose gave best effect.
Trial details
indoor, greenhouse/growth room, 1 L soil with sandy loamy texture, exposed to 42 °C for 2 h in a growth chamber and exposed to - 3 °C for 4 h
Spain
Crop
Lettuce, Lactuca sativa L.
Trial application
Method
Soil drench of aqeous solution
Timing
Immediately following a period of heat/cold stress
Rate
Heat treatment: 2 or 4 kg/ha in aqeous solution 250 g /100 L solution; Cold treatment: 60, 120 or 240 mg/ 150 mL water
2006
Porcine Hemoglobin Hydrolysate as a Biostimulant for Lettuce Plants Subjected to Conditions of Thermal Stress
HortTechnology
16(3)
483-487
Crop group
