First time w non females...

OldMedUser said:
Some plants never show sex until flowered and I've never had one show until 5 or 6 weeks at the earliest.

If I really want to know I'll wait until it has about 7 nodes then top it above the 3rd or 4th node and set it to clone under 12/12 light with a 2700K CFL or LED bulb in a closet away from the grow room. If it's already sexually mature I should know the sex in about 10 days then can switch back to 18/6 or 24/0 to flip it back to re-veg if I want to keep it or if a male and I want the pollen keep it at 12/12 and collect the pollen to make more seeds.

:peace:
Click to expand...
Waiting for seven nodes probably puts the plant at 5-6 weeks-ish and I don’t want to veg anymore than 6 weeks. I’ll start checking the plants at 2.5-3wks w a loupe or strong magnifying glass to see if I can spot anything pointing to a sex. Thanks for the help.
 
mickey oneil said:
So, I typically will only buy/grow feminized seeds as my growing space has been quite limited. I have now expanded and acquired some seeds from Greenpoint. These are 10x regular seeds (the deputy—Bruce banner #3) and I am going to germ 7 of them and place in the same tent. I’m hoping to be able to tell sex by preflowers within 3 wks so I can remove the males.

Questions:
Will I be okay in doing this? Will I need to “sanitize” the space that still has the femmes?
Can males produce pollen during veg?
Can females be pollinated during veg?

Thanks!
Click to expand...
3 weeks from seed probably won't be long enough time in veg to preflower them. There are a couple ways to ID/separate the sexes both of which have their own qualms. Sexing is not messy at all if you detect the male plants early. If you wait too long, that is until the boy flowers pop off, then you are fucked. Early detection is key. I have personally never been able to tell the sex just by preflowering. I can say that generally the boys show sex first followed by the girls and that it takes 5-6 weeks at minimum from seeds for the plants to be sexually mature enough to show.
Taking clones and then vetting each of those works but it's not really that much faster than sexing out plants from seed. The advantage here is that your plants never transition to flowering and instead continue on in veg mode which makes for larger plants in the same time frame. The problem is first you have to veg them until you can take clones say week 5 or 6 from seed. Then you gotta wait a couple weeks to root the clones and then another week or 2 under 12/12 for said clones to show their sex. Then let's say you've got half of the viable clones to be girls & those will yield pretty much squat. Never tried transitioning clones without roots to bloom phase & maybe that is possible but you've still gotta wait til they are mature enough to show sex.
Nowadays I start all my plants from reg seeds and then vet them for sex en masse. I think it is easier to flip them in small containers at week 4-5 and separate them as they begin to show. I put them in solo cups in a tray so I can water them from the bottom alongside my flowering plants in my dedicated bloom room. Again early detection is key or the whole room would be seeded. They take awhile (10-15 days) to show sometimes as some plants are not quite sexually mature by then. The cons are that once you have ID-ed them and killed off the males you've got tiny plants that will yield squat. Once they show pistils i transplant to a 3g pot and put them back in veg for another 3-4 weeks. They take longer to transition back to veg again after sexing than the initial transition to flower from veg mode but at least you saved space and time not growing out males.
Monster cropped plants get nice tight bushy branch structures that result in short fat stubby colas. Root bind can also slow transition back to vegging but since they have been started in flowering already it speeds up ripening just a bit. They sort of pick up in flower where they left off. Allowing a few more weeks in veg affords the opportunity to take clones too. Plan to select a few mothers and reveg them after harvest to take clones & eventually eliminate the sex-vetting process altogether.
 
Richard Drysift said:
3 weeks from seed probably won't be long enough time in veg to preflower them. There are a couple ways to ID/separate the sexes both of which have their own qualms. Sexing is not messy at all if you detect the male plants early. If you wait too long, that is until the boy flowers pop off, then you are fucked. Early detection is key. I have personally never been able to tell the sex just by preflowering. I can say that generally the boys show sex first followed by the girls and that it takes 5-6 weeks at minimum from seeds for the plants to be sexually mature enough to show.
Taking clones and then vetting each of those works but it's not really that much faster than sexing out plants from seed. The advantage here is that your plants never transition to flowering and instead continue on in veg mode which makes for larger plants in the same time frame. The problem is first you have to veg them until you can take clones say week 5 or 6 from seed. Then you gotta wait a couple weeks to root the clones and then another week or 2 under 12/12 for said clones to show their sex. Then let's say you've got half of the viable clones to be girls & those will yield pretty much squat. Never tried transitioning clones without roots to bloom phase & maybe that is possible but you've still gotta wait til they are mature enough to show sex.
Nowadays I start all my plants from reg seeds and then vet them for sex en masse. I think it is easier to flip them in small containers at week 4-5 and separate them as they begin to show. I put them in solo cups in a tray so I can water them from the bottom alongside my flowering plants in my dedicated bloom room. Again early detection is key or the whole room would be seeded. They take awhile (10-15 days) to show sometimes as some plants are not quite sexually mature by then. The cons are that once you have ID-ed them and killed off the males you've got tiny plants that will yield squat. Once they show pistils i transplant to a 3g pot and put them back in veg for another 3-4 weeks. They take longer to transition back to veg again after sexing than the initial transition to flower from veg mode but at least you saved space and time not growing out males.
Monster cropped plants get nice tight bushy branch structures that result in short fat stubby colas. Root bind can also slow transition back to vegging but since they have been started in flowering already it speeds up ripening just a bit. They sort of pick up in flower where they left off. Allowing a few more weeks in veg affords the opportunity to take clones too. Plan to select a few mothers and reveg them after harvest to take clones & eventually eliminate the sex-vetting process altogether.
Click to expand...
Thanks for all the information! Much appreciated. Can a male plant preflower (if I were to veg until sex was determined) pollinate a female during veg? I typically veg for 30-33 days as my space has been limited. I’ve expanded w another tent so I can afford to veg 49-55 days. My Timber 4VS comes in tomorrow!
 
Oh I'm jealous; have been drooling over a timber led myself but alas it's just not in the budget atm. By preflower I assume you mean they change in structure but have no actual flowers so no they can't impregnate the girls just yet. Plus there needs to be viable pistils for the pollen to stick. Good thing God decided to let the boys typically grow out first.
In my experience the only way I could get a plant to grow flowers and show sex was to lower the hours of light but it doesn't have to be 12/12. Once you get down to light cycles around 15/9 or 14/10 most strains begin to preflower and eventually show sex. Even then it will take time for the actual flowers to grow. Youve got a small window maybe a week or so before the most mature male flowers begin to open. If the plants are very small to begin with it is even easier to find boys just look for the balls; they grow in clusters & are harmless until they pop open. If you see yellow it's too late. Use an eyeloupe or magnifyer to find them as soon as they begin to grow. 30 days is how long I veg before flipping to vet them but then again they will be quite small still and yield very little. If you can wait the full 55 days to flip them it would certainly be better for your yield but then you have males taking up your limited space.
 
As Richard stated I also have never seen preflowers at 3-4 weeks which is where I flip due to limited height, plants still produce well and can reach 5’ (strain dependant). Please keep us posted as to preflowers showing, I’m about to start a few regs and curious.
 
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