2/2 MAINE AGRICUIvTURAL EXPERIMENT STATION. 191O. 



hand, the Type II "Ai seed" has 19. i per cent, of the total 

 weight in cob, and the "good seed" has 19.6 per cent, in cob 

 (shelhng percentage 80.9 and 80.4 respectively). It should 

 again be pointed out that a part at least of the poor showing of 

 the Type II (Crosby) corn as compared with the Type I (Den- 

 nett) is to be explained as a result of the fact that the former 

 was planted in the ear-to-row test in a locality to which it was 

 not "adjusted," while the Type I was. 



In addition to the collection of data regarding the rows as 

 wholes, individual plant selections v/ere made in 1908, just as 

 in 1907, except that in this year the selections were made in the 

 ear-to-row plots. The ears from these field selections were used 

 in an ear-to-row test in 1909, with results to be described farther 

 on in connection with the work of that year. Data were taken 

 on these ears selected in 1908 similar to those already given for 

 the 1907 ears. 



The question of the relation of type, conformation and size of 

 ear to yield and quality in the progeny is one of great importance 

 to the corn breeder. While it is not possible in a general dis- 

 cussion, such as this is intended to be, to go deeply into this 

 matter it is thought desirable to present some photographic 

 material which we have collected bearing on the subject. These 

 pictures have the further advantage of recording in some meas- 

 ure the progress made in the selection work, so far at least as 

 certain ear characters are concerned. There will be presented 

 some photographs of the ears selected in 1907 for planting in 

 1908, together with a brief discussion of their progeny in 1908. 

 It should be said that in all cases where an ear shown in these 

 photographs is crooked it became so in drying, and was not so 

 originally. The corn was dried on racks so constructed that 

 each ear was thrust, at the butt end, on a nail projecting from 

 the rack. The weight of the ear itself caused some to curve in 

 the process of drying. 



Figures 224 and 225 show two groups of ears selected in 1907, 

 one of which produced relatively high yielding rows, and the 

 other relatively low yielding rows. 



It is instructive to compare individual ears. Ear No. 113 

 (Fig. 224) while bearing almost identically the same amount 

 of shelled corn as ear No. i (Fig. 225) (80.90 gr., as against 

 80.10 gr.) produced a row yielding at the rate of 48.00 bushels 



