GRAFTING 85 



growth. This worked well with chestnuts and 

 hazels, but not with hickories or walnuts, only a 

 few out of many immediate hickory grafts catching. 

 The few, however, are significant and I hope to work 

 out principles which will allow of immediate graft- 

 ing of hickories as readily as it may be done with 

 the hazels. Several of the immediate walnut grafts 

 made a good growth at first and then died before 

 autumn. 



Immediate scion grafting in the summer time pre- 

 sents a feature of the author's experimental work 

 which is too new for valuable data. Scions consist- 

 ing of herbaceous growth of the year have been in- 

 serted into both herbaceous growth of the stock and 

 into older wood of the stock but without encouraging 

 result. Immediate grafting of scions of one or two- 

 year-old wood, however, proved to be very inter- 

 esting. Scions of chestnut and of hazel cut from one 

 tree and placed at once upon another tree caught 

 nearly as freely as they would have done if dormant 

 scions had been used. Care was taken to select scions 

 carrying old, well-developed, resting buds, but as a 

 matter of fact some of the small annual ring scale 

 buds made a good start. All leaves and the growth 

 of the year was trimmed away as a rule from the 

 scions used for immediate summer grafting, as it 

 was found that new buds of the year were not the 

 ones favored by nature for new growth. Although 

 hickories and walnuts did not do as well as chestnuts 

 and hazels in immediate summer grafting they did 

 well enough to show possibilities under the paraffin 



