Kempton: Heritable Characters of Maize 
Go 
ears which, as the illustrations show, 
are often greatly twisted. This fact 
must be borne in mind in considering 
the results obtained with the progeny 
of adherent plants. The classification 
of the plants of the progenies of the ad- 
herent variation is shown in Table II. 
Three progenies were grown from 
self-pollinated adherent plants, and 
two of them produced six apparently 
normal plants in a population of 68, 
the others being adherent. These may 
have resulted from faulty technique 
in pollinating or perhaps a failure to 
develop the character to a noticeable 
degree. This latter hypothesis would 
seem the more plausible in view of the 
large number of normal plants pro- 
duced by crosses between adherent 
plants, and the fact that the normal 
plants were no more vigorous than their 
adherent sisters. Self-pollinated ears 
have been obtained from these normal 
individuals, and they will be tested 
next season. 
ADHERENCE NOT LINKED WITH NORMAL 
STATURE 
Of the progenies grown from self- 
pollinated adherent plants, two pro- 
duced adherent plants of brachytic 
stature, disposing of the hypothesis 
that normal stature is closely linked 
with the adherent variation. (See 
Fig. 17.) Eight brachytic plants pro- 
duced by the progenies in which the 
adherent variation was found were self- 
pollinated. These eight plants were 
normal with respect to the adherent 
character but progenies of two of them 
segregated into normal, and adherent. 
The percentage of adherent plants in 
these two brachytic progenies is sur- 
prisingly large for a simple Mende- 
lian character, but the populations 
were so small that the deviations may 
be due to chance. Plants combining 
the brachytic and adherent variations 
are extremely hard to propagate and 
no self-pollinated seed was obtained 
from them. 
PARTLY DISSECTED ADHERENT 
PLANT OF NORMAL STATURE 
Showing the twisted ear and the coalesced up- 
per sheaths. Photograph natural size. (Fig.19) 
