ViSRTETIES OF PEARS STUDIED. 43 

 BUFFUM. 



Record of 1 tree at Ilocliester (Series III). 



Tree 

 No. 



Metliod of treatment. 



jSTuniber of chisters. 



Fruits set. 



Ileiuarks. 



61 



Covered with pai>cr bags 



(3198-3217). 

 Exposed to insect visits 



78 



iVo. 

 39 



195 



Per ct. 

 G.7 



29.8 



Medium-sized, healthy stand- 

 ard ; bloomed well anil fruited 

 heavily. 



87 





Record of 3 trees in Smiih orchard, Geneva {Series IV). 



62 



63 

 64 



Covered with paper hags 



(328-3;i4). 



Exposed to insect visits 



Crossed with Bartlett (547- 



552). 



Covered with paper bags 



( 335-342) . 

 Exposed to insect visits 



Covered with pajjer bags 



(343-350). 

 Exposed to insect visits .... 



20 



27 



95 

 15 



37 



104 



25 



50 



18 



25.3 

 53.5 



20.5 



18.4 



18. 5 



17.5 



Good-sized standard, in grass ; 

 healthy, but very deficient 

 in vegetative vigor from lack 

 of culture and xjruning; 

 bloomed and fruited very 

 heavily, but the fruits were 

 small. 



Like 62 and adjacent to it. 

 Do. 



50 



8 (28 llowers) .... 



24 





18 



38 





Tlie Buifnm gave excellent results as a self-fertilizer. The trees at 

 Geneva yielded about as heavily under paper bags as when exposed to 

 insect visits. The hand-pollinations with Bartlett pollen on tree ^o. 

 62 gave, as usual, a higher per cent than insect-crossing or self polli- 

 nation, and demonstrates the value of cross-pollen, even in the self- 

 fertile Bufifum. Tree Ko. 61 at Rochester set fruits under the bags on 

 one limb, this comprising about one third of the tree. The clusters on 

 the remainder of the tree were sterile under cover. The foliage seemed 

 slightly inferior on the self-sterile blanches, but otherwise there was 

 very little difference noticeable. The possibilities of bud or branch 

 variation influencing the ability to self- fertilize is here suggested. 



The self-fertilized Buffum pears were different in shape, narrower, 

 tapered more toward the stem, and entirely lacked sound seeds. The 

 difference was very x^i'onounced between them and the crosses with 

 Bartlett and the normal fruits on the tree (see pp. 65-68). 



CLAIRGEAU. 



Record of 2 trees at Rochester {Series III). 



Tree 

 No. 



65 



66 



Method of treatment. 



Covered with paper bags 



(2943-2964). 

 Exposed to insect visits. . . . 



Covered with paper bags 



(3128-3139). 

 Exjjosed to insect visits 



Number of clu!;tcrs, 





No. 



Per ct. 



56 











32 



54 



22.5 



39 











34 



23 



9 



Fruits set. 



Eemarks. 



A iine young dwarf ; bloomed 

 and fruited well. 



A fine young dwarf, like No. 

 65 and near it, but for some 

 reason did not set fruit aa 

 well. 



