Fast technique to sex seedlings

[GCBudz]

@Rhizome

That’s would be ideal…8/16 to go fast…

Not sure what the concensus is on longer lights off speeding up transition to flower. Some say it helps at the end to amber up tho…

[Rhizome]

Cost saving in my case
No money science

[GCBudz]

@Sintax

Been wondering if you can sex reg seeds? I’ve seen videos on YouTube saying if they have a volcano at the end its a female and a male has no volcano.

Think that myth was busted long ago…

[DirtySlowToes]

Then I’d say wait 2-3 weeks. See if any show naturally. By then you’ll likely be able to snip a few clones that way too. If you wait two weeks to cut, then move to flower in four, I’d think you can make something work there.

[Rhizome]

What do you mean for “show naturally”?

[DirtySlowToes]

A lot of plants will show pre flowers even in veg. Not all so it’s not a perfect science, but many will. Lots of males love to show their stuff to me in veg.

[I.am.human]

I throw mine in 12/12 or 11/13 for 4-10 days depending on how fast it shows. Some strains take longer to show from seedling than others.
Back to veg and again some strains will take longer to revert back to good veg growth than others.

If you can take cuts great, but if they’re too small I wouldn’t bother with weak cuttings that will stunt both the cutting and the original. I wouldn’t run 8/16 to flower

[Rhizome]

That’s sounds very sensible to me.
How long does it take approximately to revert in vege?

[I.am.human]

If you mean revert back to veg from flower. Varies by strain.
I did it to a bubba kush…it’s been about about a month and I think it’s finally stopped flowering and is making some offshoots. BK is slow in general
Another strain its rebounding after about 2 weeks and an uppot.

[Rhizome]

Then 1+4 weeks Vs 2+3 weeks. Interesting
I guess ( as usual) I will do a mix.

I guess I will cut and clone those seedlings which are tall enough…while I will wait 3-4 weeks more for the smalles to grow and after I will either put everything ( except clones and mother clones) under 12/12 and the famales I will transplant and move in the flowering room while the male will continue flowering in the vege room at 12/12 for pollen.
I will keep the clones in the windowsill ( middle.March).
How does it sounds?

[I.am.human]

So what’re you breeding?

[Rhizome]

Selecting at the moment and getting to know some strains:

• Killer Skunk by UGORG
• ESB F2 Flor du Mal
• Subbies with some of OT1 memory or work

I would like to breed for preservation and diversity, use the males to revert some Mephisto genetics into photoperiod . And I would like to preserve some genetic diversity.

Just some pollen chucking no breeding:)

[Oldjoints]

@GCBudz

Recently read here, wish I could remember who

That would be me. No credit ever needed in any of my info. I share it for the love of the plant and those who wish to play.

[G-paS]

@Sintax

I’ve read its about 16$ per test. Could be wrong

I buy mine from here Farmer Freeman. $15 each, $12 each for 10.

I get them on the 420 sale. They are $10 each I think for sex testing. I test at the first real leaves. Saves me lot of time and pays for themself in the long run.

I used to just flip to 12/12 and throw out the males as they showed up. With a legeal limit of 12 for my med and 12 for the grandsons rec (pays to have two household/home) I can’t keep males except for making seeds. (which has been full time the last couple years.)

If they are sativa dominant and you want small plants
anyway;

@Rhizome

Option 2 change to 8/16 and sex everything and move the famale in the flower room and continue directly 12/12 without any additional vegetative. I like the idea of small plants (3l)

[blowdout2269]

Here’s a good read if your interested:

Old school tricks for early plant sexing

So I’m not the person to talk about old tricks but I really want to hear some ways people sex there plants early.

In it you will find this little tidbit:

Old school tricks for early plant sexing

If you get your plants to the 5th or 6 th node give them 2 days of 12/12 lighting ,3 days for equatorial cultivars then put them back on 18/6 your plants will express sex in a very short preflower session.Speeds things up a couple weeks and they go right back to veg within days.

[Magu]

I agree. Many will show sex at the 5th node. It may be faster to just wait 1 week to see.

[Toker1]

In my humble opinion
Nothing happens fast in the plant world.
Switching to this and back again stuff
Is a personal choice I suppose.
Patience is a virtue, and plants appreciate it.

Now I have some strains you don’t dare veg for more that 3 or 4 weeks or they will grow
Huge.

For Me I just am patient, they always reward
Thar.
Good luck

[Cormoran]

I like to do this, but a week is too long imo. At that point they’re gonna actually start to flower, and you’ll have to spend some time revegging. If they’re big enough, 2-4 days is plenty to stimulate preflower growth without actually starting flower; at 5 days I’ve had trouble with some plants wanting to reveg afterwards. As for the OP, I dunno if you’re gonna get anything out of these plants at 4 weeks from seed. They might have to be a little more mature before they really start showing. Either that, or I just start my plants slow, which is also a possibility… I usually figure about 6 weeks. Might also be that I just can’t see them at that size, and would need a microscope to really check for certain…

[slain]

If they are mature, you can flip them for 3 days and then the males will show after about a week.

[Rhizome]

Interesting comment and I guess I will definitely consider it.

I checked yesterday and several seedling are very very small 3"…while others need in my opinion to be topped.

I have 3 baby plants (2 months old) together with the seedling and I guess I will move these in flower room maybe in 15-20l. I will clone those seedling that are already quite tall ( 8-9" -3/5 nodes) and sex…so I will start to figure it out better what I have and as suggested I will leave other plants to grow until are not big enough for normal cutting and sexing. The ones I will sex I will leave in vege to regrow.
I worked with 8 plants in 6.5l and I am not sure if it is the correct combination ( canopy and grow tent full, but small buds).