VARIETIES OF PEARS STUDIED. 

 llecord of 2 trees at Ilochester (Se^-ies III). 



45 



Tree 

 No. 



75 



76 



Method of treatment. 



Covered with paper bags 



(;u39-:y68). 



Exposed to insect visits . . . 

 Crossed with Bartlctt(4]48- 

 4150). 



Covered with paper bags 



(;i(309-:]G36) . 

 Exposed to insect visits 



Number of cliislers 



87. 



70 



19 (58 tiowers) . . 



Eruits set. 





Per ct. 









75 



14.2 



IS 













12'J 



17.7 



Remarks. 



This tree consisted of a good, 

 healthy top grafted on to 

 an okl dwarf bloomed and 

 fruited well. 



Eine young dwarf; bloomed 

 and fruited Avell. 



Tliis variety i)roved completely sterile under eitlier paper or mosquito- 

 net bags. Ordinarily it fruits excellently, but seems to be entirely 

 dependent on cross-pollination. On tree l^o. 75 Bartlett pollen is 

 shown to be excellent for inducing fruits to set. The resulting fruits 

 from Bartlett crosses were fine typical specimens. Olapps Favorite 

 pollen has been shown to be excellent for causing the Bartlett to fruit, 

 and evidence in the orchard at Chestnut Farm (see p. 21) supports 

 this. Were it not for the fact that Olapps Favorite blights badly, at 

 least toward the South, it would be an excellent variety to plant with 

 the Bartlett, since it blooms at the same time and would be in turn 

 benefited. It is very i)robable that further experiments will prove that 

 in its behavior towards foreign pollen the Olapps Favorite acts like 

 the Bartlett and that it can be pollinated by the same varieties. 



COLUMBIA. 



llecord of 2 trees at Bocliester {Series III). 



Method of treatment. 



Number of clusters. 



Fruits set. 



Eemarks. 



Covered with paper bags 112. 



(3503-3524). ! 

 Exposed to insect visits i 58 . 



Ko. Per ct. 



I 



12.6 



Covered with paper bags 



(3834-3850). 

 Exi)osed to insect visits 



145. 

 151 







7.9 



Very fine large standard, but 

 without sufficient vegeta- 

 tive shoots: bloomed re- 

 markably heavily and 

 fruited well. 



Just like No. 77, near which 

 it stood, but did not fruit as 

 well. 



DE LA CHENE (Pyvus Sinensis). 

 Record of 1 tree at llocliester {Series III). 



Covered with paper bage 



(2795-2824). 

 Exposed to insect visits . . . 



108 



Whole tree 







0.01 



Sound, healthy tree , bloomed 

 heavily, but set only two 

 fruits. 



I am inclined to think that the failure of this tree to fruit comes 

 from its early blooming. It blooms and is out of flower before the other 

 varieties are open, and being self-sterile it can not set fruit. 



