how to tell the difference between male and female seeds!!
- Thread starter bigweeds
- Start date
luvtogrow
Well-Known Member
Don't know the thread you are referring to, but have seen that posted for years on other forums. Even see people try it, always disappointed. You can't tell by looking at the seed. Sex will be determined sometime during the first couple weeks of growth. Items like higher blue light spectrum, cooler temps, more n, less p, higher rh, generally less stress yields higher ratio of females.
Mr.Therapy Man
Well-Known Member
I saw that chart and I dont buy it.Seeds are not sexed by shape,I just had a flat oblong seed be female
Hobbes
Well-Known Member
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I remember that thread Bigweeds, if I find it I'll post here. Basically had to do with seed shape and dimples. A lot of hoohey. The only way to really be sure is by inspecting the flowers. I'll post the URL here if I find it.
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This info is from Dutch Passion.
The environmental factors that influence gender are:
It is important to start these changes at the three-pairs-of-leaves stage and continue for two or three weeks, before reverting to standard conditions.
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I remember that thread Bigweeds, if I find it I'll post here. Basically had to do with seed shape and dimples. A lot of hoohey. The only way to really be sure is by inspecting the flowers. I'll post the URL here if I find it.
.
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This info is from Dutch Passion.
The environmental factors that influence gender are:
- a higher nitrogen concentration will give more females.
- a higher potassium concentration will give more males.
- a higher humidity will give more females.
- a lower temperature will give more females.
- more blue light will give more females.
- Fewer hours of light will give more females.
It is important to start these changes at the three-pairs-of-leaves stage and continue for two or three weeks, before reverting to standard conditions.
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Malevolence
New Member
I also think sex is already determined in seed... but I don't think it is possible to tell by simply looking at it.
canna_420
Well-Known Member
crack them and check
Jogro
Well-Known Member
IMO:
There is no reliable way to determine a the gender of a seed by looking at its outside. That's silly-talk. ("Morphodite"? come on. . .). .
Sexual expression (ie phenotype) in cannabis plants most definitely *is* influenced by environment. IE, we all know female plants can make male flowers under stress. Note that in cannabis plants, sexual phenotype (what flowers a plant makes) and genotype (how a plant is "hard wired" by DNA) are NOT the same thing.
There is still quite a bit that's fundamentally unknown about what determines functional gender in cannabis plants. I don't think its as crazy as it sounds that environmental conditions might effectively switch a plants gender phenotype. . .I just don't know that this has ever been proven, and I sort of doubt that its true.
There is no reliable way to determine a the gender of a seed by looking at its outside. That's silly-talk. ("Morphodite"? come on. . .). .
Sexual expression (ie phenotype) in cannabis plants most definitely *is* influenced by environment. IE, we all know female plants can make male flowers under stress. Note that in cannabis plants, sexual phenotype (what flowers a plant makes) and genotype (how a plant is "hard wired" by DNA) are NOT the same thing.
There is still quite a bit that's fundamentally unknown about what determines functional gender in cannabis plants. I don't think its as crazy as it sounds that environmental conditions might effectively switch a plants gender phenotype. . .I just don't know that this has ever been proven, and I sort of doubt that its true.
Trousers
Well-Known Member
I prefer clones, but if I get a wild hair next run...