Mine were severely overheated once but and im sure it hurt the yield but they still did good.
Cyclonite Reviewed by Cyclonite on . Impact of heat stress during veg? Hi, I have some young ones, about 3 weeks old, under a 400watt mh lamp, they are about two feet below it, with a six inch personal fan blowing over the canopy. They are showing signs of heat stress as some plants have only developing 3 or 4 blades per leaf. Other than that though the plants seem very healthy with bushy, vigorous growth. Is this going to create signifigant problems? The flowering room has much better temerature control and will stay in the appropriate range (below 80) Rating: 5