METHODS OF SELECTION. 



53 



notes are taken on the plant and on the seed. One of three general 

 methods may now be used : 



Method No. 1. — Each hybrid seed is sej)arately planted the second 



Fig. 17. — Removing the flowers of the smaller later spikelets at the end and at the upper base of 

 the spike, leaving only the strongest florets to be emasculated and supplied with pollen from 

 another plant. In front of the operator's left hand is a spike which has been cross pollinated, 

 then covered by wrapping about it a piece of tissue paper, which is tied on. 



year. The third year a centgener is planted from each original 

 hyl)rid plant of the second year, and from among the plants of this 

 centgener are chosen superior plants for mothers of centgeners the 



Fi(i. IK. — Opening the florets to remove the anthers. 



fourth year. 'I'he fifth y<^ar, variation having largely s[)ent its force, 

 ceutgeiK^rs can be grown and tested as under the plans given on 

 pages 44 to 49, inclusive. 



Method No. 2. — Eacli hybrid seed is separately planted the second 



