312 



SOUTHERN FIELD CROPS 



time of painstaking, trained men, from whom farmers \vill 

 find it more profitable to buy pedigreed seed than to 



SELECT PLAIJT 



IstYEAR 20YEAR ioYEAR -iTHYtAR SmYLAR 



StaCT PLANT 



O' 



GtNLRAl CROP 



SELCCT PLANT (T)- 



SELCCT PLONTf I 



SLLLCT Pt ArjT( 1 ) 



Fig. 145. — Uiageam showing Mbthou of Selecting Cotton. 



attempt elal:iorate plant-breeding in connection '\\dth ordi- 

 nary farm work. 



280. Size of seed for planting. — Several experiments 

 have shown that by separating and planting only the 

 heavy seed, the percentage of germination is notably 

 increased. A better stand results and a larger yield is 

 sometimes obtained. 



It does not follow that because the largest seed within a given 

 variety are superior to the smaller seed, that varietj' is best which 

 has the largest seed. Indeed the opposite is often true ; the 

 high percentage of lint that is frequently found in varieties with 

 small seed often makes them more productive of lint than varie- 

 ties with large seed. 



