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Rhyzobium

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Posts posted by Rhyzobium

  8. Posted

    Thanks for the offer Groot but TAS quarantine rules prohibit plants in normal post or courier. One work around is to engage the services of a plant concierge who would treat and hold the plants at your end for a month or so them transfer to TAS. Big $$ for that service so I will wait a while and see if some seed turns up. Might be back in touch if nothing turns up. Cheers, Rhyz

    • Like 1

  10. Posted

    Tripsis and Buttsack, if you are still on the hunt PM me your details and I'll send you some freshly harvested seed from the trees in my yard. The pods have just started to dry out.

    • Like 2
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  11. Posted

    On 10/12/2020 at 6:09 AM, Humboldt said:

    Hi @Rhyzobium, hope things have

    been good.  Q. did you have success with using innoculant for germinating A.phlebophylla?  Did you use hot or cold stratification prior to applying?

     

     

     

    Hi Humbolt, the Phlebs are definitely much harder to get started. Approx. 50% - success rate vs approx. 90% for most other species I've tried. I have generally followed the guidelines found here: https://herbalistics.com.au/acacia-phlebophylla-cultivation-from-seed/.

     

    I will have some fresh seed from my garden in 6-9 months so will continue the experimentation and report back.

    • Thanks 1

  12. Posted

    I have a few Acacia Courtii, Acacia Maideni, Acacia Floribunda, Acacia Obtusifolia, and Acacia Acuminata (broad and narrow) plants that I'm looking to give away to locals in Tasmania. 

    Also, I will be trimming approx. 30 Courtii trees over the coming weeks so happy to give away some material for cutting  propagation.

    PM me if interested. 

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  13. Posted · Edited by Rhyzobium

    Hi Humbolt, 

     

    My research led me to believe that R. Japonica and Rhizobium sp. would be the most suitable (based on the info I could find on the web - links below). There are a multitude of other strains that may or may not be more beneficial but I've only tried these two so far. I must admit that my approach is more trial and error than rigorous science.

     

    In summary the path I followed was:

    https://www.abc.net.au/science/articles/2002/09/19/674726.htm

    http://www.cpbr.gov.au/cpbr/projects/wattle-grow/index.html (Note that Wattle Grow was bought out by BASF who no longer produces the inoculant as it was not commercially viable. Also see that bradyrizobium was used in the trial)

    https://www.aciar.gov.au/file/68956/download?token=FE44X5Wy (See table 3 on page 32 for a list of bacteria strains)

    https://grdc.com.au/__data/assets/pdf_file/0014/117221/rhizobial-inoculants-fact-sheet.pdf.pdf (See page 2 for inoculant groups that relate back to the eden seeds website)

    https://www.edenseeds.com.au/?name=Category-Info-General&category=Inoculant (Web based inoculant retailer)

     

    I understand that they are only beneficial for legumes so not suitable for natives in general.

     

    The rate of application I've used is approximately 2.5g (Type H ) + 2.5g (Type I) per 50 seedlings. Just mixed with tap water and applied as soon as the seeds are planted. I usually re-dose after about 8 weeks. Note that the Eden seeds do send a method to dose the seeds prior to germination but I've not tried this so far.

     

    I hope that is of some help.

     

    4.thumb.jpg.a9bb7e700c347765cb023803212bf1ae.jpg

    4.thumb.jpg.a9bb7e700c347765cb023803212bf1ae.jpg

    4.thumb.jpg.a9bb7e700c347765cb023803212bf1ae.jpg

    • Like 1

  16. Posted

    Rupi, you can get the bacteria here: https://www.edenseeds.com.au/Category-Info-General?category=Inoculant

     

    Use type I & H combined as they contain various  Bradyrhizobium cultures that seem to work well with the Acacias that I've trialed

     

     You'll only need  the 2x 5g (1 type I & 1 type H) sachets  to treat half a dozen plants.

     

    They mention on the web site mixing it with milk powder however I've always just mixed it with water and applied with a watering can and had good results. 

     

    A bit of reading material attached.

     

    Rhyz

    Rhizobial-inoculants-fact-sheet.pdf.pdf

    Nitrogen fixation in acacias.pdf

    Rhizobial-inoculants-fact-sheet.pdf.pdf

    Nitrogen fixation in acacias.pdf

    Rhizobial-inoculants-fact-sheet.pdf.pdf

    Nitrogen fixation in acacias.pdf

    • Like 2

  17. Posted

    Rupi, this is a hard thing to determine - my first guess would be saturated ground. Courtiis hate prolonged saturation. I'd start with removing all of the mulch within a meter diameter to aid in drying out the ground. Perhaps also attempt to dig a bit of a drainage channel around it to divert as much surface water away as possible. I've certainly almost lost a few Courtii  to wet ground in my earlier growing days. Keep and eye on it and if it still seems to be going down hill I'd suggest pruning back the dying areas, digging it up and bringing it inside for a few months. I'm often amazed an the turnaround that can occur when I have done this. Additionally, you could dose it with bradyrhizobium bacteria. See my video (posted yesterday) for some info on how to go about that if you're unsure. I'm on a clayey site and have found that a sandy loamy mound improved there survival and growth rates significantly. Good luck with it and would love hear how it goes.

     

    Cheers Rhys

    • Like 2

  19. Posted

    Hi Humbolt, 

     

     Yes I lost a few small plants to frost early in my experimentation (UV causes me more problems though).I can say that the plants are far more vulnerable to frost when younger so I generally leave them inside until they are 500-900mm high.

     

    As far as rating which is most or least frost tolerant I'd lean towards them all being roughly the same except for the Obtusifolia which does seem to struggle a bit compared to the others.

     

     

  20. Posted · Edited by Rhyzobium

    Dear community,

     

    In the interest of furthering the knowledge base relating to propagation and viability of various Acacia Sp. (particularly in the harsh climate of southern Tasmania) I have prepared a short video clip which I believe covers a lot of the information that was a little hard to find several years ago when I started out in this area. If anyone can offer any words of improvement or constructive criticism they will be gladly accepted. I hope you find it entertaining and useful.

     

     

    300619_Growing_Acacias_in_Southern_Australia.mp4

    300619_Growing_Acacias_in_Southern_Australia.mp4

    • Like 2
    • Thanks 2
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