outdoor heat burn ?

[Paxuist]

Hello ,

Im growing 2 autoflower plants (short rider) outdoor in hot conditions (about 35c-40c+ under the sun) .
the first plant is about 60 days , i stop feeding her about a week ago and giving once 2 days 3 liiter of water with molassa & prepering to start flush in a few days :



as you can see the leaves are getting yellow and alot of leaves already died .
does this plant suffer from heat stress ?

the second plant is 44 days old , feeding twice a week with biobloom and top max :



as you can also see leaves are starting to get yellow and die .

does those plants healthy? do i miss something ?
thanks in advance !

 

[Indoor Sun King]

I would think heat stress would impact the top more than the lower leaves....maybe it's what you are feeding her, or not feeding her.

how far away from harvest are you...what do your trichromes look like?

 

[qwizoking]

I'm no expert but that doesn't look like heat stress, I mean they are curling up like that. The way they are yellowing bottom up and the overall limey color makes me think n deficiency though idk...lol

 

[Paxuist]

I would think heat stress would impact the top more than the lower leaves....maybe it's what you are feeding her, or not feeding her.

how far away from harvest are you...what do your trichromes look like?

most of the trichromes are cloudy , a little got red .
i will try to get a pic .

 

[Indoor Sun King]

ok..then you should be thinking of harvesting the older one soon as mostly cloudy with some amber if perfect IMHO........it's the younger that has some issues but nothing that serious....I would consider reducing the nutes for a bit

 

[Ledhed]

If they've been grown outdoors their whole life, they have become accustomed and acclimated to the fluctuations in daylight, heat and cold, rainy and cloudy days and show little signs of stress due to these factors. If, as you say, the trichs are mostly cloudy, and from the pics they look to me like they are ending their life cycle, then it's just about chop time. There appears to be no signs of actual stree or deficiencies, just a plant nearing the end.

 

[Paxuist]

Thanks ledhed and indoor sun king .
I grow the plants indoor for the first 3 weeks and then switch outdoor .
will the plant survive for another week let's say ? i didnt start to flush the plant yet ... :\

 

[Paxuist]

up ..........