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Araucaria & Agathis seed germination and storage

Posted by arauquoia z7b GA (My Page) on
Thu, Jul 29, 04 at 16:52

Writing from the U.S. (the State of Georgia), I just discovered the Australian Gardenweb. Maybe, you all can help me.

I recently collected seed for various Araucaria species (cunninghamia, columnaris, bidwillii, rulei, angustifolia) and two Agathis species (robusta, australis). I'm not having much luck with germination, however. I'm not sure the A. bidwillii seed are mature, but the others are and not over-mature either, as best I can determine.

Any advice regarding germination and storage?

Thanks for your thoughts.


Follow-Up Postings:

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RE: Araucaria & Agathis seed germination and storage

Hi araucquoia.I noticed you had no replies as yet.I can't help with your question personally.Have you tried a post on the main international Gardenweb site?I'm interested in whatever replies you receive. Good luck. C.N.


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RE: Araucaria & Agathis seed germination and storage

Arauquoia,

Have just noticed your post. I germinated A. bidwillii (Bunya Pine) once and found that it can take anywhere between 1 and 5 years to germinate. A. cunninghamii (Hoop Pine) seems to be a little quicker, I have some large trees in the reserve across the street from my place and there are numerous young trees sprouting underneath the main trees. I think that they will store well as they are native to our 'drier' subtropical and tropical rainforest areas and as such will remain viable for much longer than many other rainforest species. I don't think that refrigeration would be an option though.

In regards to Agathis. Agathis australis is the New Zealand Kauri Pine and I don't know much about it except that it comes from the temperate north island of New Zealand. Agathis robusta (Queensland Kauri) comes from the tropical and subtropical rainforests of Queensland but I don't know how long their seed takes to germinate.

Andrew.


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RE: Araucaria & Agathis seed germination and storage

Andrew,
regarding Bunya Pine germination.
The seed germinates and the radicle produces a swollen root underground. If you dig up the swollen root after the seed has detached from the shoot and place it about 1/2 a cm out of the ground, it will grow immediately.
Using this method, the initiation and growth of Bunya Pine can be decreased to no longer than 4 months.
Kris


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RE: Araucaria & Agathis seed germination and storage

A cunninghamii has very short viability and fresh seed usually germinates readily. Good luck with A robusta - not sure on that one as it is difficult for us to get seed - most trees in remnant around here are too tall!!
Jane


 
 

 

 


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