Is heat really that bad for plants?

[Weedhound]

he makes it up....

[socialistpete]

Khronik you order your seeds or go north to seed banks. Lately I've been going to Toronto and getting them in person. Are you going to vent with outside air this winter? I just put my next crop into flower today and with just the exhaust fan pulling air and leaving the intake fan off with the intake passage way still open I have maintained a temp of 84 all night so far under a 1000w HPS.

[khronik]

Opie - maybe. The way I see it, like Scrappie said, is that it's easy to keep your plants alive, and any optimizations after that will just improve your yield. I'm sure many of you have gotten better yields than 3 ounces from one plant under a 400-watt light, but i'm quite happy with that.

highallthetime - at the time I set this up, I wasn't working, and AC units aren't cheap. Also, the circuit that this whole system is on is a bit overloaded as it is. I already had to reset the circuit breaker once, and my lights weren't even on then! Also, since it's upstairs it's really hard to run another line up there from the basement. Still, my point with all this is that you DON'T need an AC unit in order to get decent results.

Well, bud porn aside, a more accurate statement would be

In order to prevent stomatal closure at high temperatures, which will limit the availability of atmospheric carbon for fixation, a low VPD must be maintained.

Really, I don't make this stuff up. Here's a link.

First, that's not talking about cannabis, which IIRC evolved in the mountains of India. At high altitudes, there would be a very large vapor pressure deficit. Second, it's not like the stomates just snap shut when the vapor pressure deficit gets too high. Your plant might grow a little slower, sure, but I never said the conditions I grew this plant under were ideal. Third, it's not particularly dry where I live, and the humidity in my grow room was usually 40-50%. Maybe if I lived in Arizona I'd have to worry about the air being too dry, but I don't.

Khronik you order your seeds or go north to seed banks. Lately I've been going to Toronto and getting them in person. Are you going to vent with outside air this winter? I just put my next crop into flower today and with just the exhaust fan pulling air and leaving the intake fan off with the intake passage way still open I have maintained a temp of 84 all night so far under a 1000w HPS.

I considered getting my seeds in Toronto, but they're more expensive and still quite a ways from where I live. I just ordered them online from europe. I think it'll be more trouble than it's worth to grow in the winter, so I'll probably put my next crop into flowering pretty soon. I'll probably be ok flowering for a couple weeks in december, but I'm probably not up to having live plants in my attic in january and february. I think my attic is drafty enough that I don't need to worry too much about ventilation for the purposes of CO2 exchange though.

However, I live in a house with four other people. The guy that owns the house is cool with me growing, in fact he smoked a bit too much of my crop already. His girlfriend was very anti-pot until she actually tried it, now she's fine with me growing too! One of the other guys we live with smokes a fair amount anyway, and he's cool. Another guy we told about it, and he's cool too. There's just one guy left who lives here that doesn't know about me growing. He'd probably be cool with it, we just haven't told him yet. Anyway, if he's cool, I may be able to build a new grow room in the basement.

Of course that would be kind of expensive, and the guy that owns the house isn't sure he wants a grow room as a permanent fixture in his house.

[socialistpete]

You can do a grow room in the basement pretty cheap. Winters long and cold and you def need a hobby:thumbsup:

[khronik]

I finally harvested today. It took forever. I had some unforeseen mold, but not much, and it doesn't smell. Now it seems like maybe a little less than my original estimate of three ounces, but it's still pretty damp, so I'll wait to weight it.

The jar in the back is leaves that had trichromes on them, and I couldn't bear to toss them. I'm not sure what I'll do with them yet. It's not enough for hash i think.

[Opie Yutts]

Don't toss those leaves unless you know for certain that you will not be running out of something to smoke in the not to distant future. You can get nice and toasty from smoking leaves with resin on them, you just have to smoke 2 to 4 times more than with buds. I see you have the leaves and buds in jars. I discovered that a vacuum sealer comes in real handy for a weed grower. It sucks all the air out of the jar (well, real close to all of it) and that greatly increases the life of the weed. Then you toss the jar in the freezer. Then one time about 6 years later when youâ??re desperate for a smoke, youâ??ll suddenly remember the jar that has by this time made itâ??s way to the very back of the freezer. Just make sure the weed is completely dry before freezing. The sealer also works great without jars, and theyâ??re pretty cheap now days.

Also the dried leaves are great for smoking resin in a regular bowl. Pinch some leaves together to get them ground up and put a pinch in a bowl. Put a little chunk of resin on top and ignite. If you do it right youâ??ll have the resin burned up before the ashes from the leaves get sucked down, thus stopping any remaining heated liquid resin from going into your pipe as well. It also helps make smoking resin a little less nasty. Unfortunately this is what I have resorted to at this time. Sniffâ?¦ Iâ??m drooling at the pictures you guys are posting. Nice work.

Be sure to try and get all that mold off your buds. Some people insist that it's really really bad to smoke, but then I've never seen any scientific proof. Just to be safe I wouldn't smoke it, even if it means you'll run out of weed.

[khronik]

I heard that mold is only bad to smoke if it's started to release spores, and if this is the case you can usually smell it. My stuff just smells like weed. And anyway, I heard it's only a major problem for people with asthma or certain allergies. I separated the stuff that had mold or might have mold on it out, that's what's in the box. The jar bud is clean. The moldy bud will probably end up with moochy friends anyway.

I weighed my bud today. It's not entirely dry, but it measured out to 3.5 ounces.

Oh, by the way, I like your signature Opie! :thumbsup:

[khronik]

Ok, I weighed all my bud today, and it came out to 3.08 ounces. If you factor in the 0.17 ounces I harvested already, that's 3.25 ounces total from this plant. Not bad for a plant growing in a hot, small, poorly ventilated attic.

[Opie Yutts]

So you guessed 3 oz earlier. I was going to say perhaps a little less, and now I'm glad I didn't. You can't guess much closer than that.

[jchap]

i had a problem with my leaves getting brittle and black tips ..temp 90

did you notice this problem?

now i have the temp 75-80 i have noticed am improvment, just hope it lasts