Aug. 2, 1920 Development of Barley Kernels in Clipped Spikes 461 



Table IV. — Growth of kernels of Hannchen barley in owned and clipped spikes at A ber- 

 deen, Idaho, in igi6 — Continued 



AUGUST 2 



AUGUST 3 



EFFECT OF REMOVING THE AWNS FROM HANNCHEN BARLEY AT 

 ABERDEEN, IDAHO 



Both the material and the conditions were more favorable for satis- 

 factory investigations at Aberdeen than in Minnesota. 



The Hannchen is a 2 -rowed, awned variety of barley that grows very 

 well under irrigation. The lateral florets are infertile, and this removes 

 the complication of prolonged flowering and the great range of variation 

 which is present when the small lateral kernels are developing. The 

 normal development of Hannchen barley has been discussed in an earlier 

 paper.^ 



The growth under irrigation in Idaho is much more uniform than that 

 in Minnesota. There are few cloudy days and fewer days in which the 

 humidity is at all high. Storms which break the culms are very rare, 

 and diseases Vv-hich affect the leaves or culms are entirely negligible. 



1 Harlan, Harry V. op. cit. 



