These figures show that 61 per cent of those in the earth bed and 65 per cent of those in the decayed sawdust, were alive when they were taken up early in May. Some had made a growth of from two to eight inches and were fine little trees. Most of these transplanted grafts were set in nursery rows and nearly all succumbed to the extreme drought of the season.
CONCLUSIONS.
The season was so extremely dry that the practice of planting root grafts as soon as made did not prove successful. However, work done in other years indicated that in normal seasons this may be done with considerable success. Placing the grafts in a greenhouse either in earth or decayed sawdust gave encouraging results, but when transplanted in the nursery the grafts could not withstand the unusually dry and hot weather. The black walnut proved to be the best stock for the Persian walnut and two buds to the cion are required. Grafting wax should not be used if the union of cion and stock is to be covered with earth; this point was clearly proven in previous years.
[The foregoing paper, read by title, was the subject of a verbal report by Prof. Lake, who said further:]
Prof. Close performed considerable work in topgrafting and budding on three and four year old stocks. The top grafts were a failure. The buds survived, and were in good, strong condition October fifteenth. That was on Persian walnut and pecan, about half and half.
Mr. Pomeroy: Did he bud on black walnut stock?
Professor Lake: Yes. It was a little higher than a man, and had been cut back to about three feet. The crown grafting was fairly successful, but would have been much more successful, had they used something to cover the grafts.
Mr. Pomeroy: How long should the paper sack be left?
Professor Lake: It would vary with the season and activity of the stock, ten days to two weeks.
President Morris: I wish you would try further experiments in rooting scions in warm sand in the hot-house. I believe that in some stage you can probably root those cuttings in moist sand in the hot-house, heated beneath; and if you can do that, it is going to settle the question very largely of hickory and walnut propagation. What do you think about that, Professor Craig?