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Mr. Nice G13 x Hashplant male Hermaphrodite

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BlackVeined View Drop Down
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  Quote BlackVeined Quote  Post ReplyReply Direct Link To This Post Topic: Mr. Nice G13 x Hashplant male Hermaphrodite
    Posted: 29 July 2008 at 18:34

Since the viability of my last batch Mr. Nice G13 x Hashplant seeds (from 2002) dramatically dropped I had to produce new seeds. 7 seedlings were placed on coco. The pots were too big by mistake so the seedlings couldnt dry out the coco properly which led to a nutrient shortage and of course stress.

From 7 plants I got out of this last batch 6 turned female and 1 male. The most vigorous plants were both the bushy short internode phenotype and luckily a female and the only male.
After about 3 to 4 weeks in flowering the male started to produce white pistills from the male bananas. Over the years I've grown alot of Mr. Nice and never experienced this before.  Since this was my only male I did use its pollen for a small pollination.

Could this hermaphrodism be caused by stress or could Mr. Nice still have a genetic hermaphrodite tendency?
Can I expect 50% hermafrodism from the new batch of  seeds?


PS- Ganja, I'd really appreciate your opinion on this one....
G13 is all I ever smoke...
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  Quote Ganja Quote  Post ReplyReply Direct Link To This Post Posted: 31 July 2008 at 09:39
Hard for me to say, as male-to-female intersexuality is very unusual indeed (in my experience, anyway).

The intersexual tendency in females isn't something that can be bred out of a cannabis strain. All females have the ability; the most a breeder can aim for is to make it a very unusual reaction.

In all the plants I've seen grow from seed, I think I've seen two examples of male-to-female intersexuality.

At a guess, I don't think seeds produced from this pollen will have a significantly increased chance of hermaphrodites/intersexuality.

Guessing further, I wouldn't be surprised if these f2 seeds, if viable, give a higher proportion of females.
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  Quote BlackVeined Quote  Post ReplyReply Direct Link To This Post Posted: 31 July 2008 at 10:26
Heey Ganja,


The seeds are ready for harvesting in about two weeks. I still have few f1 seeds left and an mr. nice selection from another breeder. So I'll use all off these to make sure I dont get hermies again. Still wouldnt a male hermie produce a normal 50/50 female/male pollen ratio?

I should have taken pics from the male, but I was short on time and had the urge to get rid of it.

Next grow I'll flower them after two weeks. I'll post how the plants turn out.

*EDIT*

About viability of the seeds. I pollinated as usual with a brush. I did notice only very few seeds formed....

Thanx alot anyway.

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  Quote Ganja Quote  Post ReplyReply Direct Link To This Post Posted: 01 August 2008 at 19:18
Originally posted by BlackVeined

Still wouldnt a male hermie produce a normal 50/50 female/male pollen ratio?


AFAIK, pollen in itself has no influence on determining gender; there's no difference between pollen that produces a seed that turns out to be female and pollen that produces a seed that turns out to be male.

The pollen produced by female-to-male hermaphrodites that's used to make fem seeds carries the genetic information of a female plant, so when combined with a female calyx, the resulting organism only has X chromosomes to 'choose' from.

True male pollen carries male genetic info, and when combining with a female, the offspring can be of either sex.

Going by the fact that environmental factors and stress can influence the proportion of males and females that ultimately result from a given number of seeds, it seems that the sex of cannabis is not predetermined.

And, of course, the fact that cannabis can change its sex during its grow period is another example of this.

One of the basic points about cannabis gender is that it's very unusual in being an annual plant with two distinct sexes.
Monoecious plants are usually perennial, which gives them a greater chance of reproduction.
Annual plants are usually dioecious (producing both male and female reproductive parts in the same flower, allowing them to self-pollinate if necessary), which improves their chance of reproduction in a single season.

The fact that cannabis is monoecious (hermphrodism doesn't change this, as male and female flowers are still separate structures in hermies) with a tendency towards intersexuality in difficult conditions is probably a result of its unusual status as a monecious annual
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  Quote BlackVeined Quote  Post ReplyReply Direct Link To This Post Posted: 12 August 2008 at 10:24
Last week I harvested, found about 31 seeds. All seeds were bursting out the calyxes, well formed, dark brown with nice black marks. I'd like to start off growing with these seeds asap. Can I sow fresh seeds straight away or do they need a rest period (keep them in the refridgerator for a while maybe?)? I'm really curious how these are going to turn out...
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