Well my idea would be to have a strong host plant then graft in many clones onto this system and harvest when ready.. I thought bigger roots=bigger bud Every year I grow I'm more interested in the root system I make than the buds I have only been doing it for seven years now so I'm still trying to make my plants as happy as can be Always learning
I personally do not think is worth the time to graft as many clones with the intention to flower them later. It takes quite a while to heal and resume growth as normal. In addition the host plant will halt its grow as well. On the other hand if you want to do it, in order to have multiples strains and just one plant, therefore you can harvest as many clones as you want for so many strains and keeping everything in one container. That's the real advantage.
You have been growing longer than me. I had that mentality about bigger roots, bigger buds and I think is half true. Since last year I've been growing and focus my energies in creating more and more foliage. I have been growing in 3 Gallons container pots. I run perpetuals for one full year and take a 3 month break. My last 2 harvest plants were grown and I did focus in increasing that foliage and the increase in harvest weight was noticeable. I grow Pineapple Express for the past year. I had 16 harvest so far of Pineapples Express during this year. All the harvest were in 3 Gallon container with Soiless Mix and same Nutrients.
I used to harvest 28g per plant. 3 weeks Veg Time. 1 Gallon container pot 4 years ago.
I switched to bigger pots 3 Gallons 3 years ago. My harvest increase to 52-56g average per plant. It has been steady like that for the past 3 years. Is totally fine, because this is for personal usage to turn to tinctures and oils.
Now, I haven't change nothing I do. The only thing I do different is work on her foliage. I increase the Veg. Time to 1 weeks. That's just two additional weeks and I fed a lot of 'N' and then switch to flower and keep the high profile of 'N' until the 4th week into flowering.
The last two Pineapples Express plants harvested weighted 76 & 81g. I'm still using the same 3 gallon containers and the same nutrients (Base [However I'm using a different nute with a higher 'N' in top of that cheaper], Bloom Booster and Hardener) (Foliar Ca,Mg,Silica,Carbos, Hormones)
You know what got me thinking about the foliage and not to focus on the roots size anymore, Aeroponics specifically. My biggest yield ever come from a DIY: Low Pressure Aeroponic Systems. The size of those roots were he smallest I have seen in one of my grows. However; those plants develop a lot of foliage during its grow cycle and the yield was close to 300g from 4 plants. Same nutrients