INTERNATIONAL CONFERENCE ON PLANT BREEDING. 431 



races alone should be used. Special sorts of Grapes should be produced 

 for special localities, and no one variety can be expected to possess all good 

 qualities for all climates. The pedigree of the Grape known as 

 1 Wapanuka ' raised by Mr. Munson apparently includes the four species — 

 Vitis Labrusca, V. vinifera, V. vulpina, and V. Bourquiniana. 



Notes on Some Variations in the Second Generation of 

 "Berberis" Hybrids. By C. E. Saunders, of Canada. 



Dr. Charles Saunders gives a most valuable account of some hybrids 

 raised at Ottawa between Berber is Thunbergii $ and B. vulgaris 

 purpurea $ and their descendants in the following generation. The 

 original hybrids were uniformly intermediate, except that "green " leaves 

 were dominant over " purple " leaves, and "scarlet" fruits over "dark 

 red." In the second generation the variations were most marked, some 

 plants resembling B. Thunbergii, others B. vulgaris purpurea, and the 

 majority intermediate. Habit of plant and size of leaves were frequently 

 correlated, as also were apparently colour of leaves and fruits. The most 

 striking feature of the experiments was the leaf-colour character. In the 

 first generation "green" was dominant over "purple " which was reces- 

 sive. In the second generation 23 per cent, of the hybrids were as deep a 

 "purple " as B. vulgaris purpurea. 



The appearance of the recessive "purple" character in about the 

 Mendelian proportion of one-quarter is very suggestive, and it is to be 

 hoped that Dr. Saunders will test these extracted "purples " to see if they 

 breed true in the third generation. 



Bud Variation in the Strawberry Plant. By 

 R. M. Kellogg, of Michigan. 



An account of nineteen years' work in attempting to produce more 

 fruitful types of Strawberry plants by propagating only from the most 

 perfect individuals of a variety. In this way Mr. Kellogg claims to have 

 increased the fruit production of a variety from 100 to 300 and 500 bushels 

 per acre. 



Bud Variation in the Apple. By G. T. Powell, of 

 New York. 



After ten years' experiments Mr. Powell claims to have succeeded in 

 increasing vigour of growth, uniform character of fruit, and prolific 

 tendency in two varieties of Apple by selecting certain scions which 

 exhibited these superior characteristics in a marked degree. 



Hand Pollination of Orchard Fruits. By H. C. Price, 



of Iowa. 



The effects of different kinds of emasculation of the flowers in Apples, 

 previous to crossing, are described. Low emasculation, in which all the 

 flower but the style was cut away, gave only from 2 to 4 per cent, of 

 successes ; while high emasculation, in which only the corolla and 

 anthers were removed, gave from 22 to 26 per cent, of successes. Pollen 



