Males influence female and vise a versa.

[Ronley]

Ive mentioned this before,- but I am not sure if it was here or on OG.

I maintain that the sex of the plants are influenced by who is growing in its nearby vacinity.

What this means is that if i have a male then it will "force" the plants growing nearby to be female, and vise a versa.

When I have just females growing and I plant new seeds, there will always be a male. no matter what. It is always best to plant at least 3 seeds at any 1 time.

I always keep a male up to the last possible moment if I have new seedlings growing, and only then do i remove him and destroy him. If i have a male then all my new seedlings always turn out to be female plants. I noticed this pattern last year and since then It always seams to work.

Marajuanna is a very clever plant and always adapts to its environment and always ensures that it will continue to grow on - that is why in the absense of no males- the plant will sometimes starts to form male flowers. This different light patterns also help in promoting hermies. The resulting seeds are always feminised.

Has anyone else noticed thi or would agree with me?

 

[Guest]

I find no correlation... seems pretty random to me... although for the most part I think i've received more females than males... but that is subjective... I've kept no counts.

I'll soon be popping 30 new seeds and will make some notes and see how this pans out.

 

[Ronley]

Indeed, this is the best way to do it. If we all take notes and see if this is true. I think that it will be a very big help for us all.

 

[Harry Gypsna]

sounds a bit like the obsessive compulsive "mystical" thinking to me....for instance, my old theraoist, there was a young lady I used to see in the waiting room, and she like me has OCD, anyway, to cut the long story short, her big thing was about unplugging all he electrical appliaces at night as she believed they would attract a meteor to hit the earth!
every night she would do the same, and every night earth was safe.
niow, was there ever a meteor, of course not, but she kept up that ritual because she genuinely believed it was her ritual preventing the destruction of our planet.
...Not quite the same thing I grant you, but im sure some of you will understand what i mean!

 

[Babbabud]

I normally sprout 3 seeds at a time to go along with my clone grows. I love looking for new moms .... In the last year or so I have grown out 12 seeds ... out of the 12 seeds I have gotten one male plant (knock on wood) I was actually looking for a male so I could do a cross or two ... finally found a sour bubble male. I find this amazing I grew out four different strains ... 3 seeds each time . My last set of 3 was sour bubble and I have finally collected a small bit of pollen lets see what happens next

 

[growright]

new ideas?

new ideas?

i remember a thread i started about container size and it's relation to a higher percentage of females.
i received lots of doubts, and of course was demanded to show proof. ie; the reports on the net etc..

it seems people have a hard time seeing new ideas.

i have grown out many seeds, and have always been favored as high female to male ratio.

a russian school of botany report stated they received more females in 6" contaniers than any other size. from seed.

this is very interseting.

time will tell.

grow on, ms right

 

[Jah]

?

?

I seem to have a hard time getting males at all. I get about 99/1 f/m. The most interesting thing I've witnessed was, I sexed a plant that was female then reverted it to make clones and when I reflowered this same plant the second time it turned MALE as did the clones. I don't think we Know exactly how this plant works just yet. So keep sowing.

 

[Ronley]

If the seeds are feminised- i.e then the plant is supposed to be a female.
Feminised seeds are obtained from a female plant that turns hermie.-( thats what Sensi seed bank claims.)
On my last grow- I had a female that turned Hermie who made me about 10 seeds, I saw what was happening and immediately picked those male flowers and stopped my whole crop from getting polinated. I immediately planted one seed and I am now waiting for it to show sex. I am quite curious to see if indeed it is a feminised seed...
I dont have any male plants in the vacinity.

This really is a truely amazing plant. It ensures that it will survive from generation to generation, adapting itself as it grows...
And we are just the small guys who are constantly learning, exchanging ideas and methods. We have come a long way-but we still have a long way to go.

I like this idea about size of the container. Its just another interesting aspect...
I must go and measure my pots ...

 

[Guest]

proximity is irrevlant with sexing imho tis genetics and enviroment that determines sex not whether m/f are with in location.just like a croc sitting on its nest to maintain tempatures at certain degrees ,as a chicken sits on her nest the tempatures and genetics determine sex .
enjoy and ill chat ya later clips

a lil cut and paste from dutch passions site
----------------------------------------------------------------------
From literature and our own findings it appears that the growth of a male or female plant from seed, except for the predisposition in the gender chromosomes, also depends on various environmental factors. The environmental factors that influence gender are:


1.a higher nitrogen concentration will give more females.
2.a higher potassium concentration will give more males.
3.a higher humidity will give more females.
4.a lower temperature will give more females.
5.more blue light will give more females.
6.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.

 

[Guest]

a lil more information to help with this including ref's
----------------------------------------------------------------------4.9 ~ Sexual Expression

The sexual expression of cannabis is determined by its genetic makeup, and by its metabolic temper, which is regulated by the male enzyme andrase and the female enzyme gynase. Environmental conditions (light, nutrients, soil and water) may suppress the formation of the dominant enzyme, and allow the opposite sex to express itself partially (hermaphroditism) or completely (sex reversal). (71, 72)

E. Galoch found that cytokinin is important for the sexual expession of hemp:

"Transition of female and male hemp plants from the vegetative to the generative phase is associated with a rise in cytokinin level while that of male inflorescences proceeds at a decreasing cytokinin level. The activity of cytokinins apparently is associated with an enhancement of the female tendency..." (73)

Gibberellin will inhibit the formation of flowers on cannabis, but sometimes it will otherwise cause the growth of fertile female flowers on genetically male plants. Silver nitrate or cobalt chloride causes masculinization of flowers of female hemp, possibly due to blockage of ethylene synthesis. High levels of N salts --- and long photoperiods --- have a masculinizing effect on hemp.(74-76)

According to K. Conrad, there are sex-linked differences of the auxin content in male and female hemp plants:

"During blossoming the vegetative parts of the males contain more auxin than those of the females. In the dying leaves and stems a remarkable increase of auxin can be observed." (77)

J. Heslop-Harrison studied auxin and sexuality in Cannabis:

"Dioecious hemp plants were grown to an age of 20 days in a day-length of 21-22 hours, then given an inductive treatment of ten 8-hour days to initiate flowering. After return to long days and during the period of differentiation of flower buds, a total of 0.5 gr lanolin paste containing 0.5% NapthaleneAcetic Acid (NAA) was applied to leaves at the 3rd and 4th nodes. In genetically male plants, female plants were subsequently formed in sites which would normally be occupied by males, a result which appears to be regulated by the level of native auxin in the vicinity of meristems during the period of differentiation of flower primordia. Secondary effect of auxin treatment were evident in an over-all reduction in intensity of heteroblastic development, the trend towards a reduction of leaf lobing and serration which normally accompanies plants passing through a period of flowering than in untreated controls." (78)

Nitrogen fertilizers masculinize the phenotype by stimulating the formation of male flowers. The proportion, number and degree of monoecious plants increases with increasing N, and the total N content is always higher in monoecious individuals than it is in females. (79)

Treatment of hempseed with ethylene gas will increase the resulting number of female plants by about 50%. Ethylene is produced by certain plants (i.e., bananas, cucumbers and melons), and these can be used to treat hempseed in a simple manner. About two weeks before you plan to sprout the seeds, place them in a paper bag or envelope and put that in a plastic bag with the peels of a ripening banana or cucumber. Replace the peels after a couple of days, and change the bags to prevent mold.

Hempseed can be feminized while they are forming on the plant. Fruit peels are spread around the area for two weeks before the plants enter the flowering phase. Remove the skins when the plants begin to flower. Otherwise, treatment with Etephon will accomplish the same effect.

When hempseed is treated with the female hormone estrogen, percentage of females that are produced will increase by about 10%. Dissolve a birth control pill in water and soak the seeds overnight in the solution. After the initial soaking, continue to treat the seeds by sprouting them on a paper towel soaked in the solution. (80)

A.I. Zhatov tested the effects of ethrel on hemp:

"Treatment of hemp plants with an aqueous solution of ethrel changed the ratio of male to female flowers. The greatest effect was observed when plants were treated during flowering of male flowers." (81)

Electricity also can change the sexual expression of cannabis; B.R. Lazarenko and I.B. Gorbatovskaya reported:

"Under the influence of the electrical current, the numerical proportions between hemp plants of different sexes was changed by comparison with the control to give an increase of female plants by 20-25%... The characteristics acquired by the plants in electrically treated soils are transmitted by inheritance to the third generation..." [emphasis added] (82)

Photoperiodism is a most useful tool with which to control the sexual expression of cannabis. For example, J. Limberk made a careful study of lighttime on the sexual index of hemp, and reported thus:

"Male plants usually flowered earlier than female. Female plants flowered only when the period of daylight was shorter than 14 hours; male plants flowered even when the day was longer than 14 hours. Reduction of light intensity in the first stages of plant development lead to increases of female plants by 4.3%. Intersexual plants (22-30% of the total) were present in conditions of 11-13 hours light per day. Grafting of plants did not change sex."

Monoeciousness effected by short days is not fixed in the descendants. (84)

The probable future sex of a pre-floral hemp plant can be guessed at by calculating the Leaf-Mass Index (LMI): Count the points (3, 5, 7) on 3 leaves in the center of a cluster. Divide that number by 3 to determine the average number of points. Repeat the process several times, and figure that average also. Multiply the two averages to determine the LMI. A high LMI indicates that the plant will be female.

The phyllotaxy changes to alternate just before the onset of flowering. Then the sex of the plant can be determined by making a close examination of the upper nodes of the main stem. The onset of flowering is indicated by the appearance of undifferentiated primordial buds behind the stipules at the nodes of the petioles (along the stem at the base of branches). Within a few days they differentiate. The male pistils are flat or knobby with a curved shape and 5 open petals about 5 mm. long; they have a single tiny stalk. Overlapping vegetation often disguises their appearance.

The female develops pairs of flowers surrounded by pointed bracts of protective leaves that will enclose the seed. The female stigma usually appear as 2 fuzzy white hairs forming a "V" that protrudes from a bract. Resinous hairs (glandular trichromes) cover the calyx (2-6 mm long).


refs:
1. Small, E. & Cronquist, A.: Taxonomy 25 (4): 405-435 (1976)
2. Emboden, William A, Jr.: Economic Botany 28 (3): 304-310 (1974)
3. Emboden, W.A., Jr.: Taxonomy 26 (1): 110 (1977)
4. Schultes, R.E., et al.: Botanical Museum Leaflets (Harvard Univ.) 23 (9): 337-364 (1974)
5. Dewey, Lyster: "Hemp"; Yearbook of the Dept. Agriculture (1913), pp. 283-345
6. Hammond, C.T. & Mahlberg, P.G.: Amer. J. Botany 60 (6): 524-528 (1973); ibid., 64 (8): 1023-1031 (1977); ibid., 65 (2): 140-151 (1978)
7. Fujita, M., et al.: Tokyo College of Pharmacy 17: 99 (1967)
8. Fairbairn, J.W.: Bulletin on Narcotics 24 (4): 29-33 (1972)
9. Small, E. & Cronquist, A.: Taxonomy 25 (4): 405-435 (1976)
10. Small, E.: Systematic Botany 3 (1): 37-76 (1978)
11. Small, E. & Beckstead, H.D.: Nature 245: 147-148 (1973)
12. Small, E. & Beckstead, H.D.: Lloydia 36 (2): 144-165 (1973); Biol. Abstr. [B.A.] 57: 50807
13. Small, E., et al.: Economic Botany 29 (3): 219-232 (1975)
14. Hirata, K.: J. Genetics 19: 65-79 (1927)
15. B. A. 52 (1): 70617 (1971)
16. Hennink, S., et al.: "Fiber Hemp in the Ukraine, 1991" in Rosenthal, Ed (editor): Hemp Today; 1994, Quick American Archives, Oakland, CA
17. B.A. 83: 39827-8 & 65007
18. B.A. 83: 39838
19. B.A. 66: 60263
20. Warmke, H.E.: Carnegie Inst. Washington Yrbk 41: 186-189 (1942); ibid., 43: 153-157 (1944)
21. Zhatov, A.E., Genetika 15 (2): 314-319 (1979)
22. Zhator, A., et al.: Titol. Genet 3(1): 28-35 (1969)
23. Menzel, M.Y.: Bull. Torrey Botan. Club 91(3): 193-205 (1964)
24. BA. 65: 8
25. B.A. 80: 16091
26. B.A. 52: 122533 & 19977; ibid., 54: 22295
27. de Pasquale, A., et al.: Il Farmacoea Sci. 34: 841-853 (1979)
28. B.A. 51:16703
29. Burbank, Luther: Luther Burbank: His Methods & Discoveries & Their Practical Application; 1914, L. Burbank Press, London, vol. 8: 108, 303
30. Bocsa, Ivan: The Cultivation of Hemp; 1998, Hemptech (P.O. Box 1716, Sebastopol, CA 95473)
31. Chemical Abstracts (1923), p. 2195
32. Arnoux, M., et al.: Ann. Amelior Plantes 19 (4): 405-418 (1969)
33. Neuer, H, et al.: Zucher 17/18: 33-39 (1946)
34. B.A. 6: 5850
35. Neuer, H., & von Sengbusch, R.: Zucher 15: 49-62 (1943)
36. Hoffman, W.: Zucher 13: 277-283 (1941); ibid., 17/18: 56-59 257-277 (1946)
37. B.A. 46: 3771
38. B.A. 59: 52517
39. B.A. 59: 64191 & 11669; ibid., 60:17525
40. B.A. 60: 5837
41. B.A. 63: 60441
42. B.A. 63: 38762
43. B.A. 64: 45213
44. B.A. 61: 40847
45. B.A. 63: 66475
46. B.A. 79: 91731
47. B.A. 72: 59642
48. B.A. 79: 9193
49. B.A. 87: 4688
50. B.A. 44: 7874; ibid., 8: 1860
51. B.A. 48: 56398
52. B.A. 48: 15032
53. B.A. 43: 11655
54. B.A. 31: 23168
55. B.A. 43: 11678P
56. Schaffner, J.H.: Amer. J. Botany 15 (1): 77-85 (1928)
57. Schaffner, J.H.: Ecology 7 (3): 315-325 (1926)
58. Pritchard, F.J.: J. Heredity 7: 325-329 (1916)
59. Pritchard, F.J.: Proc. Iowa Acad. Sci. 60: 167-175 (1953)
60. Yalle, J.R., et al.: Bulletin on Narcotics 30 91): 67-68 (1978)
61. B.A. 33: 3317; ibid., 11: 11086
62. Talley, P.J.: Plant Physiology 9: 731-747 (1934)
63. Schaffner, J.H.: Ecology 4 (4): 323 (1923)
64. Schaffner, J.H.: Amer. J. Botany 15: 77-85 91928); ibid., 18: 324-330 (1931)
65. Schaffner, J.H.: Botanical Gazzette 71: 197-219 (1921)
66. Chemical Abstracts 77: 786 b
67. Coombie, L. & Coombie, W.: Phytochemistry 14 (2): 409-412 (1975)
68. McPhee, H.C.: J. Agric. Res. 28 (11): 1067-1080 (1924); ibid., 31 (10): 935-942
69. B.A. 48: 24855
70. B.A. 46: 26780
71. Galoch, E.: Acta Soc. Botanicorum Poloniae 47 (1-2): 153-162 (1978)
72. B.A. 52: 133025
73. B.A. 71: 62433
74. Ram, H. & Sett, R.: Proc. Indian Acad. Sci. 88-B (2): 303-308 (1979)
75. Saranth, G. & Ram, H.: Experientia 35 (3): 333-334 (1979)
76. Black, C.A.: Botanical Gazette 107: 114-120 (1945)
77. B.A. 48: 14913
78. B.A. 31: 15249
79. B.A. 48: 51352
80 Flowers, Tom: Marijuana Flower Forcing; 1997, Flowers Publishing Co., Berkeley CA
81. B.A. 66: 17
82. Lazarenko, B., & Gorbatovskaya: Applied Electrical Phenomena #6 (March/April, 1966)
83. B.A. 84: 83306
84. B.A. 35: 60889; ibid., 46: 17393

enjoy and ill chat ya later clips

 

[Guest]

^^^what clips said^^^

a reverse male will also throw a large percentage of female siblings. its been my experience that its a 50/50 thing. plant a large # and most always will work out close to 50/50.

no stress in the 3rd and 4th weeks also is supposed to increase female ratios. id guess any enviormental changes, nute schedule woudl increase decrease ratios.

CBF

 

[Guest]

I was always thaught that if you plant 2 seeds together in the same pot, you were guarunteed 90% of the time to have one come up male and the other female. And so far this has proven true for me so far.

 

[jahseeds]

interesting analysis.

 

[Guest]

clips, where did you copy that last post from?

Much of the info is highly suspect, imo.

Just wondering,
-Chimera

 

[HawaiianGrown]

Aloha,


If you want to get blown away, check out "The Secret Life of Plants"

Plants, humans, and even sub-atomic particles are all capable of mystical shit.

ALL VIBES MATTER

Aloha,

 

[Jah]

Informative

Informative

Etephon; very interesding, is this available otc? I was wondering how one might collect ethylene.Say I had a garbage can with a lid . Place a couple dozen banana peels in the can. Ethylene forms inside the can. How could we collect this for use?

 

[Guest]

clips, where did you copy that last post from?

Much of the info is highly suspect, imo.

Just wondering,
-Chimera

ello chimera you can def fill in whether is bogus or not as i trust your input more then mine .here is the link to where i found that information http://www.rexresearch.com/hhusb/hh4bot.htm#HH49
enjoy and ill chat ya later clips

 

[Gypsy Nirvana]

''Resinous hairs (glandular trichromes) cover the calyx (2-6 mm long). ;;

That's where its at....

 

[Ronley]

WELL it is NOT true that the seeds made from a female that develloped male flowers late into flowering will be feminised.(Hermie)

I had such seeds and I grew out 1 to see if this was so, This plant showed sex this morning and they are male. (I was worried that this guy will pollenate and so I destroyed him)

I have growing 4 females that are late into flowering i still maintain that they influenced this plant to be male.

Now I am growing 5 Purple indica and 1 Bogglegum that are still all very young and I am hoping that this male will have influenced them to be female.... maybe wishfull thinking but we will see.
But I may have destroyed him too soon to do influencing persuasions - but I dont want to take the chance that he will pollenate my crop. Especially since he develloped from a hermie. Best to get rid of and let the 6 seedlings decide....