Small seeds in weed

I have an indoor growroom and in my recent harvest I found seeds in the buds, but I’m sure there are no male plants in the room. I’ve heard that light leakage can cause plants to become hermaphrodites. Is this true, and if so, do you have any tips for avoiding this?

Cannabis plants are monecious. This means they have the ability to be either male or female. Or in the case of hermaphroditism, they can be both. The reason to make sure there are no males or hermaphrodites in your garden is because male flowers make pollen. When pollen touches the white hairs on a flower, it makes a seed, and seeded weed gives you headaches. Even though there are reasons in nature hermaphroditism could be important, such as continuing the species in case there is no male present, hermaphroditism is generally a bad thing when talking about cannabis plants.

Light poisoning is the most common cause for a normal plant to hermaphrodite.

Light poisoning refers to the flowering night cycle of a plant being unnaturally interrupted with light. The best way to prevent this is to close yourself inside your darkened room during the daylight, and then after allowing a few minutes for your eyes to adjust to the dark, check for any light leaks from covered windows, door jams, etc. Also cover all timer and appliance lights with tape.

Negative stressors can combine with small interruptions of the light cycle to cause hermaphroditism, especially with less-stable, clone-only hybridized strains. When the night cycle is abnormally interrupted, it sends a mixed hormonal signal to the plant. This can cause a full female plant to throw some male flowers. Male flowers are easy to identify, especially when side by side with female flowers. Male flowers look like small bunches of bananas, which will take a week or two to swell before they burst and release their pollen.

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Finding a hermaphrodite in your growroom can happen at any stage of the flowering cycle and is indicated by the presence of male flowers growing on the same plant as female flowers. As with all species in nature this can occur in varying degrees. A plant can become slightly or majorly hermaphroditic. In cases where singular male flowers are found between the branch and stalk nodes, you should be diligently removing them as they grow. You must re-inspect the plant top to bottom every few days to be sure pollination and seeding doesn’t occur. If you find male flowers (anthers) actually growing from within the female flowers (buds) the situation is a little more dire. You can still remove all the male anatomy as it appears, but it will be harder to find and much more prevalent. This is a horrible discovery that leads to a tough decision: Should you let the plant live and risk the whole crop being ruined by seeds?

In either case, once hermaphroditism has compromised the safety and purity of your sensimilla, the plant should not be propagated further. Remember, once a hermy, always a hermy. The plant pictured here is in the tenth and what should have been the final week of ripening, but a timer failed and one light stayed on continuously for almost two weeks, causing this vegetative regrowth. Because the light was continuous, the plant made no pollen. This method of re-vegging can be used to save a flowering plant you have no copies of, but be careful, as this may cause some strains to hermaphrodite.

Purposefully causing a plant to hermaphrodite is called selfing. Gibberellic acid or colloidal silver is typically sprayed onto the female plant. This technique is used to make feminized seeds and uses the plant’s ability to be both male and female to force a female plant to produce male flowers. The pollen contained in these male flowers can only produce female seeds. Just keep in mind that feminized plants should not be used for breeding, as they were produced without a true male, making them genetically inferior.

Extremly small seeds in weed

Iv been growing for a couple years and have never noticed these little fuckers, theyr like the size of a pin head and don’t fully develope. I know my plant isn’t a herm and I don’t think any MJ pollen got to it. I tryd lookin it up and most people say it was pollinated late flower before the seeds could develope, makes sense right?, only I harvested some bud off the plant at like 8 weeks, noticed the tiny seeds, let them go another 2 weeks to let them mature, only still no real seeds, justs the tiny pinhead ones exact same as at week 8. I think I read pollen from non MJ plants can cause this? Lookin for someone with some knowledge on this

topfuel29
Well-Known Member

You need the pollen to make the seed.
There’s double fertilization going on. The embryo gets a nucleus, and so does the endosperm.

There’s proteins on the outside of the pollen. It’s like a key. It can only match the pistil of that species. You’ll never get a pine tree fertilizing a rose bush. It’s not the right keys, you could say.

There’s pollen on the wind. It gets on your clothes. People that come over they might have it. The plant is weird for an angiosperm. It uses wind pollination like most all gymnosperms.

No little yellow bananas in the buds? I’ve had that happen a couple times. Little per mature seeds. Maybe it could be that man.

BSD0621
Well-Known Member

I think, and I could be wrong but it makes sense to me, that it was pollinated VIA another plant/tree whatever and it started to develop the seed but since it wasn’t pollinated correctly they will never mature. I think I had this happen to me in my current grow. I pulled off a calyx where the hair had a brown tip and found a small white/green seed but they don’t seem to be growing.. I will give it time but it makes logical sense to me.

greengrowthexpert
Active Member

I had the same exact thing happen to my mango plant- the tiniest seeds I’ve ever encountered which I smoked for days before noticing. Happens. Choose a new strain. Lol

Chebus
Active Member

You need the pollen to make the seed.
There’s double fertilization going on. The embryo gets a nucleus, and so does the endosperm.

There’s proteins on the outside of the pollen. It’s like a key. It can only match the pistil of that species. You’ll never get a pine tree fertilizing a rose bush. It’s not the right keys, you could say.

There’s pollen on the wind. It gets on your clothes. People that come over they might have it. The plant is weird for an angiosperm. It uses wind pollination like most all gymnosperms.

No little yellow bananas in the buds? I’ve had that happen a couple times. Little per mature seeds. Maybe it could be that man.

No nanners, I should mention theyr blackish in color and have looked at them under a mag and u can see the little dip in the bottom where the pistols were like in a normal seed, but what bothers me is if it was MJ pollen those tiny seeds should have developed. right now I’m stuck on its either pollination from foreign species, or all weed has these and just go unnoticed, maybe the embryo gets hard and black as it drys? It dosent really effect the taste or anything, slight poping when it’s burnt not fully dry, but when dry its a smooth sensimila smoke