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Short Burst of High Temps--- Hermie Risk?

KMothsi

Member
Hey all,
Long time lurker + grower, relatively new member...

I was hoping someone with a similar experience or any valuable knowledge could give me a quick hand.

Vegged GDP for about 6 weeks in Ebb and Gro system. There's really no need to provide all the details of my grow, I'm more concerned with finding out what risk I have of hermies after a recent spurt of high temps.

It is currently Day 10 of flower under 2600w of light, day temps are usually 75-80, night temps 68-63. Zero bug problems whatsoever, no PM or any other disease.

As of last night at 4AM, plants were incredibly healthy--- angled for max light, green as can be, etc. etc.--- Had a few problems with blown circuits in the past, but thought I'd solved them.

Unfortunately, last night, a circuit blew, which shut off the fans air-cooling my hoods, while leaving all of my lights on.
I snagged the thermometer from the room and saw that the room had gotten up to 105 degrees before eventually switching over to night.

I briefly turned on the green lamp to inspect the damage. Where the leaves were once erect and perpendicular to the light, they are now somewhat limp and dessicated. Fortunately, there is NO burn or 'crispiness'. In fact, the leaves feel a little limp, if anything. I have stressed a plant to wilt before, and it recovered nicely, even in flower. But that wasn't from high heat.

The plants are from clone, but the mother is a non-femmed seed that has not exhibited any hermie tendencies.

I decided to foliar feed CANNA BOOST @ 6ml/GAL using Dutch Master Saturator as a surfactant in the pitch darkness (and, yes, I know BOOST already has some good surfactant-type stuff in it). It was dark, but I figure, even if I don't get total coverage, it's still worth it. The last time I caused noticeable stress to my babies (a different grow), BOOST really did wonders to revitalize everything.

The lights go back on at 10PM, if anyone can help answer the following questions, I'd be hugely grateful.

1) How likely is 3-5 hours of high temps (96-105) to cause hermaphrodites?

2) I own a bottle of Dutch Master Reverse that I keep on hand for situations like this one. Should I use it? I've heard of many people using it without any negative effects, but should I still wait until more pronounced male flowers show?

3) I've stressed a crop before when my Ebb and Gro CPU got unplugged and didn't feed the plants for 2 days. The leaves looked awful, but after a week of stability, they looked almost perfect once again. Can the leaves recover from heat stress if there's no sign of charring or burnt leaves?

4)
Lastly, what is the potential impact on yield and resin production, assuming this is the only snafu along the way?
 

High Country

Give me a Kenworth truck, an 18 speed box and I'll
Veteran
I don't think a few hours of high temps will be a problem. Sure, the plants wilted a bit but you didn't fry them so you should be OK. With the temps back to normal the plants will bounce back as if nothing had happened. I wouldn't spray or do anything to them.
 
O

OrganicOzarks

You need a high temp shut down for your lights. Mine shuts down at 90F. THey are about $90. Great insurance I might add. Mine have only tripped twice, but they saved the day when they did. Here is one on Amazon but you can find them cheaper. http://www.amazon.com/HLC-3-Temp-Shut-Down-Minute-Delay/dp/B0012V1Q8G If you have a power outage they will also wait 15 minutes for your lights to come back on so as not to damage your bulbs. I would never have a garden without something like this.
 

roller24

New member
Maybe some SuperThrive to help with that stress, Im in hot ass florida, and my roots are never white and beautiful like a healthy root, until they reach the rez which is cooled. SuperThrive seems to make them almost impervious to stress situations.
 

SGMeds

Member
Burnt buds before, w/o issue... but had a really warm room for over a week... that room of girls stressed...??? Luck of the draw... it depends...? Likely not, from 1 short day...? Peace
 

vince514

seeker of greater knowledge
Veteran
3- 5 hours wont really hurt them if it was all the time you might have a problem..

you probably wont see nanners but if ya do use the reverse it probably would help ya..

as long as the leaf dosent have large necrotic patches.... i.e burnt/crispy they'll bounce right back....

if its the only time the temps get very high at this point in your run , then i'd say dont worry too much just get those circuits/breakers checked and dont trip anymore ..then your good...but if you Continuously have high temps then it could dramatically decrease yeild and overall vigor of your plants....even heat resistant strains could be stressed out from the heat..........just keep an eye on them.......good luck
 

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