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Harry_Ba11sach said:
I have an enormous lilac bush in my backyard, and I think grafting a single branch of an early-finishing cannabis strain would be a perfect way to grow a little outdoors and disguise it from my neighbors.

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Grafting

Intergeneric grafts between Cannabis and Humulus (hops) have fascinated researchers and cultivators for decades. Warmke and Davidson (1943) claimed that Humbles tops grafted upon Cannabis roots produced ". . . as much drug as leaves from intact hemp plants, even though leaves from intact hop plants are completely nontoxic." According to this research, the active ingredient of Cannabis was being produced in the roots and transported across the graft to the Humulus tops. Later research by Crombie and Crombie (1975) entirely disproves this theory. Grafts were made between high and low THC strains of Cannabis as well as intergeneric grafts between Cannabis and Humulus, Detailed chromatographic analysis was performed on both donors for each graft and their control populations. The results showed ". . . no evidence of transport of inter mediates or factors critical to cannabinoid formation across the grafts."

Grafting of Cannabis is very simple. Several seedlings can be grafted together into one to produce very interesting specimen plants. One procedure starts by planting one seed ling each of several separate strains close together in the same container, placing the stock (root plant) for the cross in the center of the rest. When the seedlings are four weeks old they are ready to be grafted. A diagonal cut is made approximately half-way through the stock stem and one of the scion (shoot) seedlings at the same level. The cut portions are slipped together such that the inner cut surfaces are touching. The joints are held with a fold of cellophane tape. A second scion from an adjacent seedling may be grafted to the stock higher up the stem. After two weeks, the unwanted portions of the grafts are cut away. Eight to twelve weeks are needed to complete the graft, and the plants are maintained in a mild environment at all times. As the graft takes, and the plant begins to grow, the tape falls off.

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captain.koons said:
The dutch are limited to five plants so I guess they veg them a bunch longer which may explain the height of their plants.

The video seemed detailed enough to tackle graphing. You want to make complimentary v cuts having the cutting being taken as the "male end" and the branch the cut is being put onto the "female end" the dude in the video says some rooting hormone will seal the wound quickly but he doesn't bother and he just applies a bandage of some sort.

For clarity the male end will be cut so stem is shaved off leaving a v and the female end will have a v cut out of it.

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DudeTron said:
Don't alot of rooting compounds work by breaking down the outer tissue of the stem?  I would think that would be a bad thing for a tender graft...

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captain.koons said:
The dutch are limited to five plants so I guess they veg them a bunch longer which may explain the height of their plants.

The video seemed detailed enough to tackle graphing. You want to make complimentary v cuts having the cutting being taken as the "male end" and the branch the cut is being put onto the "female end" the dude in the video says some rooting hormone will seal the wound quickly but he doesn't bother and he just applies a bandage of some sort.

For clarity the male end will be cut so stem is shaved off leaving a v and the female end will have a v cut out of it.

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Harry_Ba11sach said: someone successfully grafted a cannabis branch to a grapevine.

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Why Grafting
Dwarfing: To induce dwarfing or cold tolerance or other characteristics to the scion.

Ease of propagation: Because the scion is difficult to propagate vegetatively by other means, such as by cuttings. In this case, cuttings of an easily rooted plant are used to provide a rootstock. In some cases, the scion may be easily propagated, but grafting may still be used because it is commercially the most cost-effective way of raising a particular type of plant.

Hybrid breeding: To speed maturity of hybrids in fruit tree breeding programs. Hybrid seedlings may take ten or more years to flower and fruit on their own roots. Grafting can reduce the time to flowering and shorten the breeding program.

Hardiness: Because the scion has weak roots or the roots of the stock plants have roots tolerant of difficult conditions.

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It might be interesting to test the grafting of a cutting onto a host plant which has already been introduced to flowering conditions. Not sure if that would have any particular real world application but, I'm really baked and can't tell if it's a good idea or not. I can't seem to hold thoughts in my head long enough right now to remember each facet of the previously mentioned idea in order to scrutinize it for validity...  Whhhhooooooowwweeeeeeeeee!!!
It took me ten minutes to type this sentence.

Actually, you should likely disregard my entire addendum because, frankly, I'm an idiot and if you've read this far you probably are too. There, I said it. I've gone and flamed would be readers; innocent browsers of the net whose only mistake is having stumbled upon the cesspool of run-on sentence upon pointless run-on sentence that is another failed post. :palmface:...

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Snurry said:

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Harry_Ba11sach said: someone successfully grafted a cannabis branch to a grapevine.

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pics?

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Triptonic said:
Graft it to yourself.

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Harry_Ba11sach said:
So I didn't want to graft to hops because I know that's been done before. I'm going to have to spend some time searching around on phylogenetic trees for closely related houseplants that might be useful for grafting. Trema Occidentalis is of the Family cannabaceae and, from pictures I've found on google, appears to be a plant I've seen for sale as a houseplant at retail stores near me. I may have to go pick one up and attempt that before venturing further outside the genus.

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Harry_Ba11sach said:
good lord it's so freakin' hard to track down a reliable phylogeny of Cannabaceae! I can't seem to find a phylogenetic tree anywhere, or even an inclusive list of other genus's that might be included. over 150 species in the family but nobody has bothered to write them down.

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Triptonic said:
so pissy tonight koons.

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