Hi there.
Jandre asked me to have a look at your problem and based on your temps being stable and within acceptable ranges, my only conclusion is some form of main stalk or root system damage.
Did the plant get knocked/dropped/bent over at any time in the last few weeks? While plants can often survive something like that, often times the main stalk can break below the soil surface and basically sever the water channels that deliver water and nutrients from the roots to the topside of the plant. Once that happens, there is very little you can do to save the plant.
I'm afraid that I have to agree with Jandre here and recommend that you pull the plant and move on. One thing to check before doing that would be to dig down around the main stalk and see if you can spot a cracked or otherwise damaged main stalk. This would be just to confirm what the cause of the issue was and not an attempt to save the plant.
Sorry I couldn't offer you anything more positive, but based on all the info you have provided, a broken root/plant connection looks like the most likely culprit here. Since I assume that you are feeding and watering this plant the same as all your healthy ones, I doubt the problem has anything to do with nutrient deficiencies etc.
Cheers.
Jandre asked me to have a look at your problem and based on your temps being stable and within acceptable ranges, my only conclusion is some form of main stalk or root system damage.
Did the plant get knocked/dropped/bent over at any time in the last few weeks? While plants can often survive something like that, often times the main stalk can break below the soil surface and basically sever the water channels that deliver water and nutrients from the roots to the topside of the plant. Once that happens, there is very little you can do to save the plant.
I'm afraid that I have to agree with Jandre here and recommend that you pull the plant and move on. One thing to check before doing that would be to dig down around the main stalk and see if you can spot a cracked or otherwise damaged main stalk. This would be just to confirm what the cause of the issue was and not an attempt to save the plant.
Sorry I couldn't offer you anything more positive, but based on all the info you have provided, a broken root/plant connection looks like the most likely culprit here. Since I assume that you are feeding and watering this plant the same as all your healthy ones, I doubt the problem has anything to do with nutrient deficiencies etc.
Cheers.
