843 



Evergreen foliage seems to be no hindrance to growth on deciduous 

 stock. Scions of Prunus laurocerasus on Pr. Padus, of Quercus Ilex and 

 Q. Subcr on Q. sessiliflora, of Cedrus Libani on Larix curopaea are said to 

 thrive but there is no report as yet as to a favorable growth of deciduous 

 wood on evergreen stock. Thouin contradicts the former statement\ 



Of the noteworthy results of Duhaniel's experiments, it should be men- 

 tioned here that, for example, the fruit of the winter Christ pear on quince 

 had a more delicate, juicier flesh and a finer, deeper colored skin, as con- 

 trasted with scions grafted on wild stock. Leclerc du Sablon^ observed 

 that pears grafted on pears store up less reserve substances in their aerial 

 parts than when grafted on quince stock, while the roots are poorer in 

 reserve substances. This latter fact might be explained by the greater fer- 

 tility after grafting on quince stock. 



It is remarkable that pears and apples, which form so perfect a union 

 with remotely related stock, can never, or rarely ever, be brought to form a 

 permanent union with each other. Numerous experiments have been made 

 in this connection. Thus Knight" reports a case of apple on pear stock, 

 which for one year yielded an abundant harvest but died the following 

 winter. The fruit is said to have had blackened cores, not containing a 

 single seed. Recent observers have affirmed this fact in general, but em- 

 phasize the fact that exceptions may occur. Thus Stoll* reports that apple 

 scions took well on pear trees and bore very soon but the fruit was small and 

 the graft usually died in the fourth year. The head gardener, Seifert, in 

 Segeberg (Holstein) describes a five year old apple graft on pear stock 

 which in the fourth year had borne six well developed apples (Ribston 

 Pippin). The apples had a good flavor but the crown of the tree had a 

 weak growth. I have known of some favorable results from pear grafts on 

 apples. In Czerwentzitz, near Ratibor, many examples were found of pears 

 which had been grafted on apples. The method was in use at least ten years 

 ago. In the first experiment (Geisshirten pear on apple) it was found that 

 after the second year the fruit from pears on apple stock ripened two weeks 

 earlier than on the main trunk. The scion lived eight years. Less vigorous 

 stock gave no good results. Most varieties, to be sure, remained alive but 

 made no growth. When the same grafting was repeated on the middle 

 branches of the crown, a number of specimens died after two or three years. 

 The others lived in a weak condition for some time without setting fruit. A 

 note by Gillemot'' originates from, this period. He had two-year-old pear 

 grafts on apple stock and also had grafted cherry scions (Royal Amarelle) 

 in the bark of a plum (Prunia institita). The scions developed very long 



1 Thouin, Monographie des Pfropfens. Berg-'s translation, 1S24, p. 114. 



2 Leclerc du Sablon, Sur I'influence du sujet sur le greffon. Compt. rend. 1903, 

 CXXXV. p. 623. 



3 Hort. Transact. II, p. 201. 



4 Stoll, Das Veredeln von Birnen auf Apfeln. Wiener Obst- und Gartenzeit. 

 1876, p. 10. 



5 Gillemot, Beitrag- ziir Veredlung- verschiedenartig-er Gewachse aufeinander. 

 Wiener Obst- u. Gartenzeit. 1S76, p. 121. 



