How can I get my plants to produce femenized seeds?

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AKalltheway

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How can I get my plants to produce femenized seeds?

There are two methods that I am familiar with; Light-Poisoning, and Gibberellic Acid Treatment, both forcing female plants to produce male flowers and pollinate themselves. I have employed both methods, and both have yielded satisfactory results.

NOTE: YOU MUST START WITH FEMALE SEEDS/CLONES TO ENSURE THAT THERE WILL BE NO MALE CHROMOSOMES PRESENT.


LIGHT-POISONING METHOD: During the first three weeks of flowering, turn the lights on for an hour during the middle of the dark period. That is, 12 hrs. on, 5.5 hrs. off, 1 hr. on, 5.5 hrs. off, and repeat for the first 3 weeks, after which you may return to the normal 12/12 light cycle. This causes a plant to go "hermie" and pollinate itself, as well as any other female in the room. You must use plants originating only from female seeds or clones to ensure that no male chromosomes are present. The resulting seeds will produce NO MALE PLANTS!

GIBBERELLIC ACID TREATMENT: Select your favorite female plant and spray it from approx. two feet away (first under the leaves, then on top). This must be done 2 weeks before the plant is put into the flowering light cycle, thus the need to start with female seeds/clones. DO NOT SMOKE BUD TREATED WITH GIBBERELLIC ACID! Spray the plant again after 2 weeks have passed, and place it under 12/12 lighting. This plant will "hermie" and pollinate itself and other females present. It will not produce as much pollen as a pure male, thus less seeds. However, these seeds will be 100% female.

CONCLUSION:
Now, femenized seeds have also been known to produce hermaphrodites. This is just an evolutionary safety precaution to ensure the survival of the species in the event of environmental catastrophe. All seeds have the potential to hermie. Variables such as pH levels, lighting scenarios, fertilizer problems, etc. will also be factors in the outcome of the plant's sex. Just keep 'em healthy, and give them your tender, loving care, and you should be fine.
 
Sorry, but IMO, these are just ways to get the plant to hermie...
 
NOTE: YOU MUST START WITH FEMALE SEEDS/CLONES TO ENSURE THAT THERE WILL BE NO MALE CHROMOSOMES PRESENT.
..and how can we determine if they are "true" female seed/clones, without the "male/hermie" chromosome present?..
I am in disagreement with the statement "all seeds have the potential to hermie"..
"True" or 'super' females, as I have heard them called, wil not hermie under stressful conditions, and 'must' be chemically reversed/stressed. THAT..."IMO".. is the only way to prevent further propogation and promotion of the hermie characteristic.
 
Hick said:
..and how can we determine if they are "true" female seed/clones, without the "male/hermie" chromosome present?..
I am in disagreement with the statement "all seeds have the potential to hermie"..
"True" or 'super' females, as I have heard them called, wil not hermie under stressful conditions, and 'must' be chemically reversed/stressed. THAT..."IMO".. is the only way to prevent further propogation and promotion of the hermie characteristic.

ABSOLUTELY. In total agreement. My own opinion is that hermaphroditism is based on genetics. I've tortured my indica line - done everything bad to it - no sign of hermies. And the fem seeds I have made show no sign of hermies, either in the male or female, :D something I attribute to the strong indica genes I introduced. DESPITE the fact that those fems came from a male hermie.
 
leafminer said:
ABSOLUTELY. In total agreement. My own opinion is that hermaphroditism is based on genetics. I've tortured my indica line - done everything bad to it - no sign of hermies. And the fem seeds I have made show no sign of hermies, either in the male or female, :D something I attribute to the strong indica genes I introduced. DESPITE the fact that those fems came from a male hermie.

I am not sure why you despise the fact that this came from a male hermie. I, personally, find this quite interesting. Most of the times males are destined for the compost pile and so most males never live long enough to become hermie...can you describe this to me in xx, yy, xy terms?
 
The Hemp Goddess said:
I am not sure why you despise the fact that this came from a male hermie. I, personally, find this quite interesting. Most of the times males are destined for the compost pile and so most males never live long enough to become hermie...can you describe this to me in xx, yy, xy terms?

I seriously wish I could . . . the pollen came from this feral line of sativa, once known for its great high but evidently long gone to a line of self-pollinating type. I used to get mad as hell, growing batch after batch but then seeing them all male then about three weeks after the pollen sacs opened, covered in foxtail colas. After trying the foxtails I really enjoyed the high so much - that classic brain rush, giggly, high - that I decided on the backbreed experiment in one of my other threads.

But what is going on here? A normal male would be XY and a normal female XX.

First, it's interesting to note that: 2. From the sporadic distribution of dioecious species throughout mainly hermaphrodite families of flowering plants, it is inferred that dioecious species have evolved from hermaphrodites.
THE EVOLUTION OF SEX IN FLOWERING PLANTS

D. LEWIS

There is an incredible diagram on page 180 of this link:
hXXp://books.google.com.mx/books?id=w1o5VaVG6SkC&pg=PA173&lpg=PA173&dq=hermaphrodite+%2Bplant+%2Bgenes&source=bl&ots=LAidL13huI&sig=NEd_0o6g3Q9cIzVVs6Vbhd5FlVI&hl=en&ei=teE3SpD0M42AswP0t4D-Bg&sa=X&oi=book_result&ct=result&resnum=5#PPA180,M1

that shows the realtionship between environmental and endogenous reasons for changes in the sexual structure of the plant's organs. It mentions gibberellic acid and photoperiod amongst others. I mention it bcause it so incredibly complicated that I feel like we here are understanding maybe 2% of the picture.

SO, I think I cannot find any explanation as simple as saying XX or XY ... the male hermies I used to pollinate probably are best described as XX but with specific genetic modifications allowing production of male flowers. Thus pollinating my XX dioecious indicas with the XX genetics from the hermies should, and did, result in all the offspring being XX.

The question I am trying to answer at the moment with the backbreed experiment is: Does any male offspring (I have one) show the hermie tendency? Will the females hermie male? I believe the answer to the second question is NO because none have done so far, and I have the one male under observation.

Sorry this has been a huge post ... I am rather conscious of my ignorance.
 
I've taken this from Advanced hemp research by Paulo Ranalli.

Hope this helps and my tuppence worth says you have no worries with that hermie boy,shouldn't be problematic and is actually desireable for some breeders as a particular tool,can't remember the exact reason but if its progeny doesnt hermie first time around I'd say you'll not see it again.

I don't think it can be masked as a recessive trait,its a sexual condition.

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I like my Girls withOUT the nanners thank you.:hubba: I have grown both,,and,,YEP,, like the ones with no NANNERS.;)
 
Here's some real "Blasts from the Past" :eek:

You guys might find these VERY interesting reading. Now these two were aiming for more males for fiber production, but the results still are there for you to learn from! (And totally worth printing out!)

TIME FACTOR IN UTILIZATION OF MINERAL NUTRIENTS BY HEMP (1936)

by Sister Mary Etienne Tibeau :holysheep:

hXXp://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=439254


and

CARBOHYDRATE-NITROGEN RATIOS WITH RESPECT TO THE SEXUAL EXPRESSION OF HEMP (1934)

by Paul J. Talley


hXXp://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=439101



Granny :heart:
 
Rockster, I just finished reading those extracts. Very useful! Thanks a lot for taking the trouble. I'll check out Storm Crow's refs. later.
Weedhopper, I am not sure you understand exactly what we're attempting to do, here. IMO understanding the nature of the plant starts with the genetics and the more we know the better growers we become. Understanding what makes hermies and what we can use them for is pretty important IMO. We're not saying that we like smoking nanners!:)
 

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