366 



THE CANADIAN HORTICULTURIST. 



but most of the increased size in crosses of 

 orcliard fruits probably arises from the fact 

 that the pollen is more acceptable. 



Setting" aside the usual j^ain in size result- 

 ins^ from crossing, we wish to know whether 

 there will be any chang-e in the shape, color, 

 quality and season of ripening" of the fruit. 

 A few undoubted instances o{ tiiis influence 

 have been noticed with some plants in which 



ence oi pollen from observation, rather than 

 from experimental proof. It does not neces- 

 sarily follow that " sweet and sour " apples 

 are due to cross-pollination, nor that the 

 russet on Greening" apples borne on the side 

 ^i the tree next a Roxbury was produced by 

 the influence of the Roxbury pollen. 



Most qS. the chang-es in fruit which are 

 attributed to the influence of cross-poUina- 



FiG. 1902. — LoNGFiELD. From Greening Pollen Below, From 

 LoNGFiELD Pollen Above. Marked Benefit 

 From Cross-Pollination. 



the seed is the principal part of the fruit, as 

 the mixing- of sweet corn and field corn ; 

 also perhaps in various peas and beans. 

 ■When the seed is surrounded by a fleshy 

 pulp, however, as in our common orchard 

 fruits, it is still in dispute whether this pulp 

 is influenced, however much the seeds them- 

 selves may be. Most men have formed 

 their convictions about the immediate influ- 



tion are due to variation. Every bud on a 

 tree is different in some way from every other 

 bud on that tree and may develop unusual 

 characters, independent of all the other buds, 

 according^ to the conditions under which it 

 g"rows. 



The best way to determine whether there 

 is an immediate influence of pollen is by hand 

 crossing". Among" the fortv-five diflferent 



