THE BUDS OF FRUIT-TREES 



25 



the spur is, therefore, continued in a straight line, of- some- 

 times the spur perishes entirely. With the apple and the pear, 

 on the other hand, 

 a leaf-bud may ! 

 end the growing 

 axis, in which case 

 further elongation 

 in a straight line is 

 possible. But when 

 fruit-buds are pro- 

 duced they are 

 usually terminal, 

 whether the axis 

 which bears them 

 is long or short, so 

 that further elon- 

 gation of the spur 

 is forced out of 

 a straight line 

 through the devel- 

 opment of lateral 

 buds, which may 

 be produced below 

 the fruit-bud, but 

 as a rule are devel- 

 oped from axillaiy 

 leaf -buds which 

 have their origins 

 within the fruit- 

 bud itself, as is discussed above, 

 short or several inches long. 



This secondary growth is of prime importance in the 

 maintenance of the fruit-spur, although when the spur is 

 very weak it may not develop. The power of continuing 



Fig. 4. — Short spurs of apple bearing termi- 

 nal fruit-buds. TF = terminal fruit-bud. 



Such growths may be 



