That ridiculous. Something else went wrong. PH of plug or something. Cannabis growers are the only ones that take these extra steps. There are all kinds of myths and mis information in the cannabis world. This question gets asked a lot on here.
The only extra step that makes any sense is to presoak in a little water. There are quite a few vegetable seeds that it is recommended to presoak.
I grow a vegetable garden and plant multiple flower beds every year. That's hundreds maybe over a thousand seeds a year. All of them go straight into dirt and all of them sprout. Maybe an occasional dud.
I'm not knocking you. Do what works for you.
When a seed sprouts a tap root it develops very fine hair like roots. The more steps and handling cause damage.
Here is another misinformation. If you germ your seeds plant them tap root up. Or plant seed with the point up. The tap root makes a u turn and pulls seed shell off as it sprouts.
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All that said, its a seed. Poke a hole in dirt, insert seed, cover, lightly tamp. That's it. Lol. Sorry to be long winded.
I'm not sure what doesn't make sense, but I've done it under lab conditions. There are no PH issues, as I take a sample of each mix I create (lab has multiple soil types from FFOF to the nutrients Lacking seed starters soil). I take my sample of a Dixie party cup, and put drainage holes, then use PH neutral tap water (checked and recorded for ppm and PH) to water and collect the runoff for each sample. So I can assure you it was not PH.
The paper towel method is what CKS seed bank says they want you to do or else they do not guarantee their germination. Typically I just plop them in PH neutral water to soak until the tap grows enough to go into the dirt. But I followed their method with 3 seeds. One had NO problems. other two popped n never grew. even the one I put in the soil earlier (after it popped),became a gelatinous blob inside the shell. never cracked more. nothing. I appreciate the lack of confidence in my skills, but I know that no problems were on my end. The mix worked fine for the other... so how could it be something besides the seeds? EVERYTHING else is the same. That's why I considered helping the shell along. They used their energy and then had nothing left to actually grow the root. It's very simple to deduce.
I mix one large application of soil, mix my dolomite @ 1 tsp/gal of soil and my only other additive is Hydroguard, which is mixed in the PH neutral water I mist on to wet the soil.
I'm sorry to say, but was not any other issues. Your info on bottom is regarding if it even CREATES a tap root. So it was really off-topic. But still, it can help someone in the future. I'm trying to figure out how to eliminate this issue for myself though.
I agree that the paper towel method blows. Its simply Mir variables that introduce problems (dyes, stuff on your fingers like tobacco resin, etc.) So this next time I plan to use the method I've always had luck with... PH water... pouring seeds in a medicine bottle and shaking to help loosen, add to the water, and let germ. Sometimes I've added a small air stone too But they don't end up soaking as much water in that way. Shaking them absolutely helps though. Personal preference I suppose though. It's just a bummer, paying extra shipping, waiting weeks, then prepping your work area and having to go through the whole process again. I prefer multiple generations, or clones. With seeds you have to worry about so much. Plus with a perpetual grow, keeping multiple generations allows you to avoid dealing with an area specifically for smaller plants. Not gonna get into that tho... too many ppl believe that they lose genetics or break down and produce less. Now that's something that's ridiculous.
I can assure you though, these had no "other problems", as there's not much that can be said when one (2 inches away) germed PERFECTLY. It's actually going strong still, and just went through a transplant To OF sOil. Maybe other newbs mess things up like that, but not here.
Any other suggestions? Or responses to the actually question about experiences with removing the shell when the seed pops but doesn't grow any further? As mentioned, runoff is 6.8 range (digital pen, tested with two different, freshly calibrated pens). Ppm was the 68 from tap plus 290ppm of the 25% OF mixed in. When it was straight seed starter, the first leaves came out pure white from nute def' s. So I always mix a little nute soil in and works fine. These are white widow from CKS though.
I guess it's simply easier to say I messed up or am crazy though. Not that a seed bank's seeds could have had a problem. Unless you're saying my prior bag seed was stronger than the ordered, fem seeds?