16 
BULLETIN 56, HAWAII EXPERIMENT STATION 
with a relatively high percentage in the leaves, dropped in the mid- 
ribs and sheaths, rose in the apical part of the rootstock, and dropped 
again in the basal part. The total sugars had the same curve as the 
hexoses, although the variation was relatively small. 
The leaves and sheaths of Group 1, hill 1, samples Nos. 1, 2, and 3, 
were dead and the stem was shrivelling at the apex. The sugars in 
the remaining part of the stem showed a ratio similar to that of the 
sugars of the stem of Group 2, although the quantity of each was 
considerably less. The total sugars within the rootstock were dis- 
tinctly less than in Group 2, particularly in the apical part. 
The stems of young Group 3a, hill 1 (samples Nos. 9, 10, and 11) 
had not developed* to any appreciable extent and were immature, 
and the leaves were appearing at the top. The midribs and sheaths 
showed a very striking decrease in sugars as compared with Group 2, 
Fig. 11.— Secondary growth in a field of stunted plants 12 months old. Severe drought practically 
destroyed stem growth. The developing secondary growth is very stunted with small undersized 
rootstocks 
particularly in the hexoses, which fell below the sucrose; and the 
relationship between the apical and basal parts of the rootstock was 
different from that of the preceding groups. Sucrose increased from 
apex to base, whereas in Groups 1 and 2 it decreased. In the basal 
portions of these latter groups the hexoses were extremely low, but 
in Group 3a they were present in appreciable and only slightly less 
quantities than in the apical part. 
In hill 2 (samples Nos. 12 to 18, inclusive) the stems showed a 
striking similarity to those of hill 1. Sample No. 14, a Group 2 stem, 
showed the same increase in sucrose over midribs and sheaths as was 
noted in sample No. 6, hill 1. Likewise, the midribs and sheaths of 
young Group 3a showed a low concentration of hexoses similar to 
that of sample No. 9, hill 1. The proportions of sugars of the leaves 
of Group 2, hill 2, old Group 3a, hill 3, and Group 2, hill 1, were very 
