Pistilos marrones con pocos cogollos

It would be nice if you had said whether it was Auto or Photo. You should add nitrogen from boiled banana peels, chicken, sheep, or horse manure, then it will be something.

Hello 🙂 It seems like your plant might need a few more hours of sunlight for the flowers to develop better. You could also try a special PK fertilizer that helps the buds fatten up more. I would recommend removing a few leaves so that the whole plant receives more light. Another option would be to gently open up the buds a bit; a light LST training also works really well outdoors. I hope I was able to help you 🌱💪

Your old growth looks bad but your new growth looks good. It appears you’re ending the growth stage and starting the fattening stage. So you won’t get much taller but the buds should fatten up. Reduce N and increase P and K. Keep your ppm under 1000 (2.0ec). Buena suerte.

forgot to mention 2nd anecdote -- i've singed pistils with too much light pretty badly in the past and those colas still developed fine too -- singed to the point of yellow nubs reamining, lol. fix what you can control and i'm sure it'll be an insignificant issue as long as it isn't pollination-caused.

The ball didn't cause it unless it killed that pistil. pistils turn color when they die or get pollinated (they die after pollination). other reasons -- wind burn, heat or excess light could cause premature pistil death. Not sure how it effects the ripening of the calyx... if it still ripens as normal it's obvioulsy an insignificant problem. I have had slightly windburned pistils before... those colas still turned out okay... close enough that the naked eye saw no difference.. maybe in an extreme case with more damage it wouldn't be the same? Look for pollen sacs or nanners... if confident there's no male bits on it, probably environemtally caused. Neighbors growing weed? If one of them has a herm and you are downwind could cause pollination too. on a typical 9-week flower timeline, should be turning brown around 6 weeks.. maybe some by 5 weeks. A faster developing pheno might show brown pistils even sooner - for perspective. Lots of genetic variety involved....