The sandwich or intermediate or interstock graft for Goji

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The sandwich or intermediate or interstock graft for Goji

PostAuthor: Agronomist Ariel » Sat Apr 11, 2015 12:44 pm

Hi all
Bernard reminded me about this old topic - somtimes used in complicated horticultural cases and it is good to know about it in advance.

The reasons to graft a scion on a rootstock were discussed. We get uniform plantation of one selected variety and there is adaptability to soil, water, soil diseases.....etc.
Sometimes even the beter rootstock is propagated vegetatively and thus all the plantation is uniform - this is done in avocado etc - but under harsh conditions when production is erratic.

http://content.ces.ncsu.edu/grafting-an ... op-plants/

Techniques of grafting thick old mature rootstocks are well described in google and thus in 10 years when new Goji varieties will be found, you all will be already experienced but to cut back to 25 cms the plant and use crown graft with 4-5 scion wood of the new Goji varieties.

http://www.hort.cornell.edu/grafting/de ... ceptG.html

The sandwich - interstock graft means we double graft as to broaden the subspecies and related species that can survive such a graft and give extra strength to the plant that otherwise may die. There was a huge debate about this topic in the early 20s century when professor Michurin from Russia and his students and Mr Burbank and his workers from California-USA cross bred and grafted by millions so many possible and closely related species and succeeded in proving that plants do not know our botanical names and definitions given to them by us.

For sure we cannot graft a tiger finger on a man's hand and an elephant nose.

But once there are closely related species and subspecies related to Goji with broad characters as tolerance to diseases-pests-soil pH - these plants may be grafted as interstock to overcome disease and viruses and viroid in between a selected rootstock and the selected variety.

http://www.ncbi.nlm.nih.gov/pubmed/24020259

The Tamarilo - tree tomato -Cyphomandra betacea was used in many old experiments to illustrate this phenomenon when used as interstock - that many solanaceae species could be grafted on top of it - and could not get grafted directly on the rootstock itself.

The above said is but to demonstrate a possibility of sophisticated grafting when such a need will rise.

I used Cyphomandra fragrans as a rootstock for tamarillo because it is hardy and tolerant to clayish soil.

A broad study about this topic in NZ:

http://www.naturalhub.com/grow_fruit_ty ... ealand.htm


At the moment it is but theoretical.

Ariel

Agronomist Ariel
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