Week 6 flower. New growth on bud pointy yellowish. Nute burn? Light or heat stress?

[DEVGRU_420]

Hey guys week 6 flower about to start week 7. I noticed on the top of a few buds this pointy new growth on the buds is yellowish lighter colored. Anyone know what causes this? Thanks dudes!

80 Degrees
60% rh
leaf surface temp 77
that cola is about 9-10 inches away from gavita 1650e
Feeding at 2.0ec 3 times a day. Using canna A and B. Also using Canna Calmag agent.

 

[Creeperpark]

Those look like naners to me, but I can't see for sure. I could be wrong, but it looks like your plant is producing male pollen sacks. I hope I'm wrong.

Hermaphrodites: When Cannabis Plants Become Monoecious
Cannabis, like those who love it, doesn't always stick to the rules, though. Sometimes, this dioecious plant species goes against the grain and develops both male and female reproductive organs. These specimens are known as hermaphrodites. Google

 

[St. Phatty]

Beautiful Frost on your bud there !

That looks like the Yellow Leaf tip in the buds condition.

Wouldn't worry at all, if the grow is for your own personal use.

My guess is, it's an indoor grow.

A higher res photo would help. A Nanner can hide among the yellow leaf tips.

 

[flylowgethigh]

For the temps being 80F, I agree that is nice frost. At 85 my trics just disappear.

 

[HempKat]

I'm inclined to read that as light stress 9-10 inches is pretty close for LED use from what I've heard. Now to be fair I have to admit I've yet to use LED grow lights so I can't speak from personal experience. I have however seen many post of people having troubles with LED's Since LED's run much cooler then the old school standard HID the tendency for growers is to take advantage of the lower temps and let their plants get closer. While the temps might be lower though, the intensity from LED's can be very high and so usuallly those with experience recommend having the LED lights about 30 or so centimeters away. I think it's just showing up in the leaf tips because the rest of the bud is well protected by the thick coating of resin but at the very tip there is not much surface area for the resin to hold onto so it ends up being thinner there and the light is able to affect it. That's what it looks like to me anyway.

 

[Brother Nature]

It's hard to tell too much given the limited info, but my guess would be light and nutrient stress. When I moved to LED's I was also using coco and the canna line (a+b and cal-mag). I'd notice similar results nearing the end of flower on some of the more indica related strains and I'd get a fair bit of uncharacteristic fox-tailing on the more sativa leaning girls. It's almost like the lighting is too intense and the plant is trying to reveg, in a way. 2.0 ec seems high for that late in flower, but I don't actually know what strain you're running so that's just me being cautious. 9-10in is also very close for a good LED, I run mine about 16-20cm away from the canopy. There's a few very good threads on LED lighting and it's efficiency thresholds on this site, I'd suggest reading through as many as you can, they've all helped me in many ways.

 

[Creeperpark]

I'm inclined to read that as light stress 9-10 inches is pretty close for LED use from what I've heard. Now to be fair I have to admit I've yet to use LED grow lights so I can't speak from personal experience. I have however seen many post of people having troubles with LED's Since LED's run much cooler then the old school standard HID the tendency for growers is to take advantage of the lower temps and let their plants get closer. While the temps might be lower though, the intensity from LED's can be very high and so usuallly those with experience recommend having the LED lights about 30 or so centimeters away. I think it's just showing up in the leaf tips because the rest of the bud is well protected by the thick coating of resin but at the very tip there is not much surface area for the resin to hold onto so it ends up being thinner there and the light is able to affect it. That's what it looks like to me anyway.

Those aren't nanners HempKat?

 

[Lester Beans]

That is bleaching from the light being too close.

 

[HempKat]

Those aren't nanners HempKat?

I don't think so but like you said it's kind of hard to tell. I mean I'm sure that several of those yellow points are the tips of small leaves barely poking out of the buds but I can't say with absolute certainty that there aren't nanners poking out of there as well. What passes for nanners on late stage buds actually look more like little horns poking out, it's pretty distinctive, if any of those in that picture look like little horns I would think the OP would have commented on it like "there are these strange horn like growths poking out of my buds". What kind of puzzles me though is if it is light stress/bleaching why isn't there any signs of it on the bigger leaves separate from the buds? IT would be nice if there was a less zoomed in picture as well.