Update on some of my seedlings:
As strange as it seems, the three examples below show different results so far:
From left to right, the first one was left in dappled sun, protected from heavy summer rains. Its a future double trunk and it is the biggest of the three examples.
The middle one was left in full sun and full rain, and it is the smallest of the bunch, but the stem looks harder, woody. Same color as the first one.
The third one on the right side was cut (tap root) and left in the same conditions as the double trunk; the color is way lighter but it has needles all over, very low on the stem.
I can't explain the differences, does anyone could help? Isn't the full sun-full rain-no cutting supposed to be the strongest one?