Can a plant become hermaphrodite because of power outage ?

buckaclark

buckaclark

Well-Known Member
conor c said:
It doesnt it just triggers a response thats already present within the genetic pool ie hermie traits in this case if those genes aint there in the first place the plant cant Express them in short
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Wanted to ask your opinion on s-1 seeds grown out.I believe I've heard people say they could be different from the parent plant?I was wondering as I have made some.
 
conor c

conor c

Well-Known Member
Ive seen herms in both i do feel that there slightly more common with fems than regs that could be due to hormonal imbalances or whatever who knows but there not as bad as when first released id say but theres obviously genetic factors at play too even with regs too they can herm too if its just in the genepool of that variant and that genes triggered/expressed then thats that it takes real work and time and numbers and ruthless selection to remove or cut down herms in a strain and not so many people these days interested in putting in such work
 
conor c

conor c

Well-Known Member
buckaclark said:
Wanted to ask your opinion on s-1 seeds grown out.I believe I've heard people say they could be different from the parent plant?I was wondering as I have made some.
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They are different there never bang on an exact replica of the parent its a s1 however some varietys stick closer to the parent than others depending how genetically stable / inbred the parent used are that will equal how close the s1s will be imo minus maybe the odd exception but most rules have them
 
Tolerance Break

Tolerance Break

Well-Known Member
There are millions (billions?) of genes present. Some are flipped. Some combinations of genes cause others to flip on or off. External stressors will cause certain genes to flip over a lifetime. There are also mutations that occur in breeding that are far more pronounced.

There is a whole branch of science dedicated to this and I am but a retard on the internet, so I'm not going to go much deeper into it.

As far as the traits you mentioned, most of that is pre determined. Perfect vpd can make a plant grow a little quicker, and a healthy plant over time will always have a good base gene pool. You can stunt an otherwise healthy plant early on and it may end up struggling for the duration of its life, but I've never done the tests to prove this, it's more anecdotal (read; not actual science, but probably best to keep your plants happy and healthy from the start)
 
Modern Selections

Modern Selections

Well-Known Member
conor c said:
Ive seen herms in both i do feel that there slightly more common with fems than regs that could be due to hormonal imbalances or whatever who knows but there not as bad as when first released id say but theres obviously genetic factors at play too even with regs too they can herm too if its just in the genepool of that variant and that genes triggered/expressed then thats that it takes real work and time and numbers and ruthless selection to remove or cut down herms in a strain and not so many people these days interested in putting in such work
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Or it could be your growing that caused all those herms. Most common cause of herms is grower error.

Fem and reg, no difference.
 
buckaclark

buckaclark

Well-Known Member
Modern Selections said:
Or it could be your growing that caused all those herms. Most common cause of herms is grower error.

Fem and reg, no difference.
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Do you feel that a stress induced herm has undergone a genetic change?Is it's offspring More likely to herm because of the parents stress?
 
Modern Selections

Modern Selections

Well-Known Member
buckaclark said:
Do you feel that a stress induced herm has undergone a genetic change?Is it's offspring More likely to herm because of the parents stress?
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www.frontiersin.org

Frontiers | Hermaphroditism in Marijuana (Cannabis sativa L.) Inflorescences – Impact on Floral Morphology, Seed Formation, Progeny Sex Ratios, and Genetic Variation

Cannabis sativa L. (hemp, marijuana) produces male and female inflorescences on different plants (dioecious) and therefore the plants are obligatory out-cros...
www.frontiersin.org www.frontiersin.org
 
bk78

bk78

Well-Known Member
buckaclark said:
Do you feel that a stress induced herm has undergone a genetic change?Is it's offspring More likely to herm because of the parents stress?
Click to expand...

Grow Weed Easy - Learn How to Grow Cannabis with Simple Tutorials

Growing weed can be easy, though some marijuana grow tutorials make it seem like you need a degree in horticulture. Learn how to plant a seed & start growing with as little time and effort as possible, or read our advanced tutorials for monstrous yields!
www.growweedeasy.com www.growweedeasy.com
 
xtsho

xtsho

Well-Known Member
Modern Selections said:
www.frontiersin.org

Frontiers | Hermaphroditism in Marijuana (Cannabis sativa L.) Inflorescences – Impact on Floral Morphology, Seed Formation, Progeny Sex Ratios, and Genetic Variation

Cannabis sativa L. (hemp, marijuana) produces male and female inflorescences on different plants (dioecious) and therefore the plants are obligatory out-cros...
www.frontiersin.org www.frontiersin.org
Click to expand...
I've posted that study numerous times and I doubt anyone is going to read it. It also doesn't address the question of whether selfed, feminized, or regular seeds are more prone to hermaphroditism. It's a very interesting study though.

"These hermaphroditic inflorescences can be induced by exogenous applications of different chemicals (Ram and Jaiswal, 1970, 1972; Ram and Sett, 1981), and by environmental stresses (Rosenthal, 1991; Kaushal, 2012), suggesting that external triggers and epigenetic factors may play a role."

"In rare cases (two out of 1,000 plants), the entire female inflorescence was displaced by large numbers of clusters of anthers instead of pistils (Figure 3). The factors which trigger this change in phenotype have not been extensively researched."


Stresses can cause hermaphroditism and one that many overlook is chemical stress. I have no data just a hunch but I believe that with all these new cannabis specific fertilizers and additives, many with unlisted ingredients that they are playing a role in the frequency of people having hermaphroditic plants. Not the only cause but one of many possible causes. People are feeding their plants things they would not get in nature and if they did it would be at much lower levels.

Take kelp for instance, it contains gibberellin aka gibberellic acid/ Ga3 which is known to produce hermaphroditism and some use it to reverse female plants. It acts differently in different concentrations and I don't think adding a handful of kelp to your soil is going to cause any issues but people are using things in high concentrations. More is better or so they think. There are so many products cannabis growers are using without a clue as to what's actually in them. Superthrive is full of hormones but nobody knows exactly what. There are many cannabis specific additives containing unlisted ingredients that many people don't have a clue regarding what they're dumping on their plants.

People are always quick to blame genetics when in fact it's quite possible it's from something they fed their plants.

"In earlier research, induction of hermaphroditism in marijuana plants was achieved experimentally by applications of gibberellic acid"

"Physical or chemical stresses can also have a role in inducing staminate flower development on female plants of marijuana."
 
Budzbuddha

Budzbuddha

Well-Known Member
radicaldank42 said:
stable genetics. do you expect a container of 10 seeds for 10 bucks from some breeder that just threw stuff together and called it square to be stable. to not herm on you, produce what you want, and be a good level of thc? cause i sure dont. thats what i meant. and feminized has a little bit more of a chance to herm then regs. how you make a feminized seed you cause one female to stress using ewhatever natural stress like no wate rover feed etc or the colloidial silver for chemical stress. and the pollen is mostly female pollen creating mostly female seeds not fully tho. but the fact is that the plant that was sprayed was stressed so it has the herm trait in its genes a little more then regs. not saying that trait isnt in there to begin with
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That’s one long sentence - my brain hermied.
 
buckaclark

buckaclark

Well-Known Member
xtsho said:
I've posted that study numerous times and I doubt anyone is going to read it. It also doesn't address the question of whether selfed, feminized, or regular seeds are more prone to hermaphroditism. It's a very interesting study though.

"These hermaphroditic inflorescences can be induced by exogenous applications of different chemicals (Ram and Jaiswal, 1970, 1972; Ram and Sett, 1981), and by environmental stresses (Rosenthal, 1991; Kaushal, 2012), suggesting that external triggers and epigenetic factors may play a role."

"In rare cases (two out of 1,000 plants), the entire female inflorescence was displaced by large numbers of clusters of anthers instead of pistils (Figure 3). The factors which trigger this change in phenotype have not been extensively researched."


Stresses can cause hermaphroditism and one that many overlook is chemical stress. I have no data just a hunch but I believe that with all these new cannabis specific fertilizers and additives, many with unlisted ingredients that they are playing a role in the frequency of people having hermaphroditic plants. Not the only cause but one of many possible causes. People are feeding their plants things they would not get in nature and if they did it would be at much lower levels.

Take kelp for instance, it contains gibberellin aka gibberellic acid/ Ga3 which is known to produce hermaphroditism and some use it to reverse female plants. It acts differently in different concentrations and I don't think adding a handful of kelp to your soil is going to cause any issues but people are using things in high concentrations. More is better or so they think. There are so many products cannabis growers are using without a clue as to what's actually in them. Superthrive is full of hormones but nobody knows exactly what. There are many cannabis specific additives containing unlisted ingredients that many people don't have a clue regarding what they're dumping on their plants.

People are always quick to blame genetics when in fact it's quite possible it's from something they fed their plants.

"In earlier research, induction of hermaphroditism in marijuana plants was achieved experimentally by applications of gibberellic acid"

"Physical or chemical stresses can also have a role in inducing staminate flower development on female plants of marijuana."
Click to expand...
They do say " the impact of self fertilization on progeny sex ratios and on genetic variation in the subsequent progeny had not been previously studied.".
Part of their conclusions " The extent of genetic variation after one generation of selfing in the progeny from hermaphrodite seed is similar to that in progeny from cross fertilized seeds".So I did read enough to somewhat answer my own question, and thanks for posting it.
 
xtsho

xtsho

Well-Known Member
buckaclark said:
They do say " the impact of self fertilization on progeny sex ratios and on genetic variation in the subsequent progeny had not been previously studied.".
Part of their conclusions " The extent of genetic variation after one generation of selfing in the progeny from hermaphrodite seed is similar to that in progeny from cross fertilized seeds".So I did read enough to somewhat answer my own question, and thanks for posting it.
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I didn't post it @Modern Selections did.
 
C

Clk55r1d3h

Member
don't worry about it. I turn off my lights hour early sometimes just to spray cuz i don't wanna wait. That's gotta be worse than 20 min no light.
 
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