Clippings by greentoe357

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RE: Received my hoyas today (Follow-Up #14)

posted by: penfold2 on 05.25.2012 at 01:20 pm in Hoya Forum

Oxygen diffuses very slowly through water. As a result of this, roots grown in water develop a greater percentage of aerenchyma, which is a spongy tissue that allows oxygen to diffuse from the stem, where it is plentiful, to the roots, where it is needed. This aerenchyma makes the root more fragile and poorly adapted to soil growth. When transplanting to soil, the water roots will most likely die, resulting in the loss of all that expended energy, plus the need to expend more energy growing new roots. Starting the cutting in soil will result in faster, stronger growth.

Another technique is to allow the cutting to grow aerial roots in the humidity of a rooting chamber. These roots should be much more adaptable to soil conditions, but roots allowed to grow in soil will always have the greatest advantage since they have no transition to make.



why rooting in water is a bad idea
clipped on: 03.17.2014 at 02:47 am    last updated on: 03.17.2014 at 02:48 am