Aroids forum: Arisaema hybridization

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Name: Evan
Pioneer Valley south, MA, USA (Zone 6a)
Charter ATP Member Plant Database Moderator Forum moderator Aroids Irises Celebrating Gardening: 2015
I was one of the first 300 contributors to the plant database! Tropicals Foliage Fan Bulbs Hummingbirder Lover of wildlife (Black bear badge)
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eclayne
Mar 11, 2011 9:13 AM CST

Plants Admin

After coming across some Arisaema triphyllum during a foliage paddle several years ago I’ve become enthralled by the genus. I currently have A. triphyllum, from seed in there 3rd year, as well as A. speciosum var. Magnificum and A. griffithii var. Pradhanii.

With so much variety in this genus there are species which are hardy in most of our North American zones. I’m aware of many naturally occurring varieties but have been wondering if there are any attempts at hybridization underway. If not, is this market driven or due to difficulty.
Evan
Name: LariAnn Garner
south Florida, USA
When in doubt, do the cross!
Forum moderator Pollen collector Charter ATP Member I was one of the first 300 contributors to the plant database! Aroids Seed Starter
Foliage Fan Region: Florida Tropicals Container Gardener
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LariAnn
Mar 11, 2011 12:06 PM CST

Moderator

Evan,

I'm not aware of any of this work going on, but that doesn't mean that someone is not doing it. Were I located in a northern climate, I would be doing the work myself! I've already done some hybridization with Typhonium, and if Arisaema is similar, the pistils are receptive once the bloom first opens, and the pollen drops the next day. If you have a number of specimens blooming during the same time period, you can try this yourself. Pollen can be collected and saved in the refrigerator for a day or two if you need to wait for a bloom to open.

LariAnn
Be the Captain of What's Gonna Happen!
Name: Evan
Pioneer Valley south, MA, USA (Zone 6a)
Charter ATP Member Plant Database Moderator Forum moderator Aroids Irises Celebrating Gardening: 2015
I was one of the first 300 contributors to the plant database! Tropicals Foliage Fan Bulbs Hummingbirder Lover of wildlife (Black bear badge)
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eclayne
Mar 11, 2011 9:12 PM CST

Plants Admin

Thanks LariAnn,
I'll give it a shot. Last year my griffithii bloomed 1 week prior to the 1st speciosum. If the pollen keeps for a few days maybe I could try tenting one of the speciosum to accelerate blooming. I've never done this before! As the plants are in the ground, would I need to "bag" the pollinated inflorescence? If I'm going to attempt this I can see I'll need to do some homework.
Evan
Name: LariAnn Garner
south Florida, USA
When in doubt, do the cross!
Forum moderator Pollen collector Charter ATP Member I was one of the first 300 contributors to the plant database! Aroids Seed Starter
Foliage Fan Region: Florida Tropicals Container Gardener
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LariAnn
Mar 14, 2011 8:19 AM CST

Moderator

Evan,

Unless you have other Arisaemas blooming and emitting pollen at the same time as you are doing your cross, you should not have to bag the pollinated inflorescence because they are not wind-pollinated. If you wish to be strictly scientific about your work, though, you should bag the inflorescence.

LariAnn
Be the Captain of What's Gonna Happen!
Name: Evan
Pioneer Valley south, MA, USA (Zone 6a)
Charter ATP Member Plant Database Moderator Forum moderator Aroids Irises Celebrating Gardening: 2015
I was one of the first 300 contributors to the plant database! Tropicals Foliage Fan Bulbs Hummingbirder Lover of wildlife (Black bear badge)
Image
eclayne
Mar 14, 2011 5:35 PM CST

Plants Admin

LariAnn,
As I expect to only have the 2 species blooming this year I was more worried about same species pollination "polluting" the cross. If I bag won't I increase the odds of having cross-pollinated seeds?

Thanks again,
Evan
Name: LariAnn Garner
south Florida, USA
When in doubt, do the cross!
Forum moderator Pollen collector Charter ATP Member I was one of the first 300 contributors to the plant database! Aroids Seed Starter
Foliage Fan Region: Florida Tropicals Container Gardener
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LariAnn
Mar 15, 2011 11:36 AM CST

Moderator

Evan,

Yes, if you bag you will definitely increase the likelihood that any seed set will be hybrid seed. However, if the two parents you are using are sufficiently and distinctly different, you should be able to tell just by looking at the progeny whether your cross worked or not. When I do crosses, I pick parents that are different enough, and for which the pollen parent is very different from the ovule parent. That way, if traits from the pollen parent show up in the progeny, I know the cross worked, whether I bagged or not.

LariAnn
Be the Captain of What's Gonna Happen!
Name: Evan
Pioneer Valley south, MA, USA (Zone 6a)
Charter ATP Member Plant Database Moderator Forum moderator Aroids Irises Celebrating Gardening: 2015
I was one of the first 300 contributors to the plant database! Tropicals Foliage Fan Bulbs Hummingbirder Lover of wildlife (Black bear badge)
Image
eclayne
Mar 15, 2011 4:19 PM CST

Plants Admin

Thanks LariAnn.
Got it!
Evan
Name: Evan
Pioneer Valley south, MA, USA (Zone 6a)
Charter ATP Member Plant Database Moderator Forum moderator Aroids Irises Celebrating Gardening: 2015
I was one of the first 300 contributors to the plant database! Tropicals Foliage Fan Bulbs Hummingbirder Lover of wildlife (Black bear badge)
Image
eclayne
Jul 24, 2011 9:12 AM CST

Plants Admin

Unfortunately I didn't have an opportunity to hybridize this year. I never had two blooms, let alone two different species blooming at the same time. I guess I'll just have to increase my stock. One speciosum bloom was nearly twice the size of the other and from last year if memory serves.
Evan

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