Hi Hans, Do you mean you brush the pistil with cement powder and then pollinate it with the pollen from the same plant? I can't imagine that cement powder alone would do the trick without pollen. It's a neat trick and could be very nicely applicable. I'll have to give it a try! I suspect that the high alkalinity of cement interferes with whatever compounds on the pistil, allowing the pollen grains to germinate. Nhu On Sun, Feb 16, 2014 at 1:21 PM, Hans Huizing <hanshuizing@home.nl> wrote: > I put some cement powder (yes cement powder) on a cotton tip and put it > on the pistil. >