You have a time machine, an autoflower seed and 3 pots...

[Hen]

I have an auto related question about pot size, or more specifically pot dimensions.

Say you have an auto flower seed, a time machine, and three 7 litre pots. The first pot is twice as tall as it is wide. The second pot has equal width and height. The third pot is twice as wide as it is tall.

You grow your seed in pot one, note the results, then climb back into your time machine and do the same grow, but in different pots.

If growing from the same seed, would there be any difference in the resulting grows?

 

[aridbud]

Yes, due to pheno characteristics, there's differences(we prefer nuances). F-1's are relatively uniform...once you start crossing those, individual characteristics will appear, unless you continue to back cross for stability.

Or....if you femenize them, you'll get more (or less) uniform growth, same pattern.

 

[IntelliGeneS]

Looks like the original poster was asking if growth conditions (specifically pot dimensions) would have a measurable impact on Phenotype if Genotype is controlled for.

The short answer is: Possibly.

The long answer is: Probably not a large impact at all. The environmental effect on Phenotype and GxE effect in the case of pot dimensions would be primarily generated by the limiting factor of stopping the free growth of the roots. If the roots hit the sides or bottom earlier or later, it would change how the root growth proceeds slightly at the pot margins. While the pot which allows expansion in all directions the longest would theoretically allow for the best growth early which will compound into better overall growth, I'd venture that Cannabis does not have a primary preference for root growth direction (e.g. deep vs. shallow root growth patterns) and therefore the shape of the pot will probably have very little impact.

It would be possible to test this by controlling for genotypic variation in another way (I prefer not to lend out my time machine, sorry). Using short-day Cannabis this could be mostly accomplished by using clones. To address this question using plants (either short-day or autoflowering) grown from seed, you would need to control for genotypic variation by using a very advanced inbred line (F9 or higher) or an F1 hybrid (from two inbred lines F9 or higher). Of course, you will never be able to completely control environmental variation or the error terms, but it should be possible to test the hypothesis for statistical significance (although low plant counts would make this difficult).

 

[blastfrompast]

Pot size makes a difference....I have never found shape to be much of a difference.

One thing to note...big tall skinny pots....they tip over VERY easily..lol

 

[Green Sky]

The deeper pot would take less watering, longer to vegetate, and the plant SHOULD be taller/ tallest.
The shallowest pot would probably cause that plant to grow shorter wider roots, flower sooner, and need more watering. IMHO.

Even with the same seed being grown, environment IS the DEFINING factor