Kaktus said:I have a lot of questions about this crested thing:
I will try to answer the best I can.
Kaktus said:1. looking at the development, at the end of the day, all the crested fan shape will become the long shape, then there will be no more crested version, where the hell the sellers get the crested huernia then? should we always cut and reroot the crested version before it grows big ?
Some crests are more stable than others, but when they are not particularly stable (plant in pic 1) the solution is a combination of pruning normal growth wherever it occurs, and cutting and re-rooting the crested parts where necessary. Some crests present a constant battle, and I generally lose interest when they all-out refuse to stay crested.
Kaktus said:2. I like the crested model of the cactus/succulent, Is there anyway for us to prevent this transformation to "long" shape happening, I really do not want my myrtillocactus to transform
Not that I know of. I don't think you're doing anything to cause this, the instability tends to be hard-wired, inherent in the plant.
Kaktus said:3. Can we make the transformation the other way round, from the long shape transform to crested shape, my Huernia Schneideriana has hundreds of new branches/small cactus, but none of them is crested
I have had normal plants spontaneously develop crests. It's not common but it's not unheard of. Propagate enough succulents and one or two will start cresting. There's a pretty tremendous growth disadvantage for crested growth compared to normal growth most of the time, meaning that the normal parts will continually outpace their crested counterparts, growing side by side, and the crest will tend to diminish relative to the whole.
I would imagine that plants which spontaneously crest are probably less stable (more prone to reversion) than crests which have been maintained and selected over an extended period of time, but this is not based on any particular observations. There is still quite a bit of mystery in my mind about what triggers the change, and what its molecular basis might be, but some crests are less stable than others, for whatever reason.
