a perfect union
unlike a graft of some other types.

MR. WEBER: When you make that cut of the excess understock, you don't
even wax?

MR. BERNATH: No. You can if you want to, but I don't wax. Just leave it
like that.

Now the next operation. Here is this miniature greenhouse. It's moist
peat. That's just about the right substance. Would anybody like to look
at this? Don't get it too wet. Just walk right up here.

MR. WEBER: It feels as if it's ground up.

MR. BERNATH: It is.

MR. CORSAN: Mr. Bernath, would that be the right stuff to put sweet
chestnuts in in the fall?

MR. BERNATH: You mean for sprouting?

MR. CORSAN: Yes.

MR. BERNATH: That would be all right.

MR. CORSAN: That's not too damp?

MR. BERNATH: No.

MR. CORSAN: I have put it in that and had the greatest success.

MR. CHASE: Now, folks, let's everybody sit down, and please keep quiet
and try to absorb what's going on here. We can't have 10 or 15
individual conversations going on.

MR. BERNATH: Now here we have two pots grafted. Now, of course, the
bench in the greenhouse is wider and longer. Here is what you do. You
start the first row, just move the peat back like that, and you lay them
in like that, one after the other, the pots on the side.

MR. WEBER: With the bud side up?

MR. BERNATH: That's right. Now, you go right along. When you come to the
next row, here is what you do (piling up peat) like that. If you want to
cover the scion, all right; if you don't, perfectly all right. You can
put electric heating coils under it.

MR. RICK: Is there any advantage in sloping the top? Would it matter if
it was flat?

MR. BERNATH: No, no, doesn't matter. This just happened to be an old
melon box. I had started melons early in the spring.

Now, while the grafts are in the process of forming the unions, that is,
when the cambium begins to form, you do not water until you take these
out of the case. Add no more water, but make sure your pots are moist
enough. For instance, in this one, there is plenty of moisture for the
period of incubation.

MR. KINTZEL: How long? Couple of weeks?

MR. BERNATH: No. Sometimes they start to grow in three weeks, but
generally four weeks, maybe a little over. Sometimes less; depends on
everything.

MR. SHERMAN: What temperature in the greenhouse?

MR. BERNATH: Well, if you note in the springtime when the trees are
beginning to grow, you know the night temperature goes down, while
daytime may go up to