(STS) West Coast O.G Auto Run #2

zip420 The growth speed has been about a week slower than usual, and since the growing point didn't appear for a while, I thought it was just going to wither away. However, I’ve finally confirmed what looks like the start of true leaves. I've decided to keep an eye on it for a little longer. PPFD:200~330μmol/m2/s

zip420 Slow start—about 10 days behind—but the true leaves are finally unfolding. Time to see if she can make a comeback! For some reason, this seed lot has many mutants with curled leaf tips. My base water EC is 0.1 mS/cm.

zip420 She’s finally found her stride! Although the leaf mutations from this seed lot are still visible, she has regained her vigor and growth speed seems back to normal. So glad I didn't give up on her! The internodal spacing is quite tight, so she’s looking like a very squat and bushy Indica-leaning pheno.

zip420 I’ve always run DWC, so I’m struggling with how slow coco grows. I suspect the old seeds are also a factor, but it feels like the worst of both worlds between soil and hydro—definitely not my style. I’m planning to spray STS for sex reversal on this one. I had the exact same symptoms in my previous grow. It’s a leaf-crinkling issue, specifically affecting the outer leaflets—if you compare the leaf to a hand, it’s the 'pinky fingers' that are most shriveled and distorted. It doesn't improve even as the plant matures. I'm starting to think this is a genetic issue rather than environmental; for some reason, this specific seed pack has a high rate of mutations. PPFD: 380 μmol/m2/s pH: 6.0

zip420 Day #41: First pistil confirmed. Starting the STS spray treatment tonight.

zip420 I’ve been spraying a 0.4mM STS solution daily for the past seven days as an experiment, but it doesn't seem to be very effective. So, I switched to a 2.0mM concentration and started spraying today. I might have messed up this time.

zip420 The flowers have started blooming. It seems the STS spray wasn't strong enough.

zip420 I stopped spraying STS about 13 days ago. I wonder how much longer it'll take for the pollen to develop. I'm getting a bit anxious since the females are already standing by and ready to go. ------------------------ It seems like the process was actually going more smoothly than I thought. Earlier last week, pistils were popping up everywhere, and I thought the sex reversal had failed. I increased the concentration from 0.4mM to 2.0mM, and about three days later, it started behaving differently than a typical female. I'm a bit regretful about spraying it at 2.0mM for two days straight, though. I don’t have a full understanding of the exact process of how male flowers develop. Furthermore, the STS spray I used this time is a commercial flower preservative, not specifically for cannabis. It seems the sodium thiosulfate concentration is higher than in typical STS recipes, possibly to improve the stability of the solution, which made it even harder to predict how the plants would react. However, observing the reaction up to today, there might not be that much difference in behavior compared to STS sprays specifically made for cannabis. ------------------------ Starting on Day #61, the pollen sacs rapidly began changing color from green to purple, and I observed the first banana on Day #62. The female plant intended for pollination is also at the perfect timing. My only concern is whether the pollen will be viable.

zip420 I wonder if it’ll actually release any pollen. It doesn't seem to be growing anymore. Maybe I overdid it with the STS spray—that might be why I failed. Even with all these balls, not a single one is producing pollen. Such a disappointing result.