322 
A normal brachytic plant was crossed 
with an adherent plant of normal stat- 
ure and the first generation segregated 
into equal number of brachytic and 
normal plants indicating that the ad- 
herent parent was heterozygous for 
brachysm, affording additional evi- 
dence that adherence is not linked with 
normal stature. 
Considering the possibilities for va- 
The Journal of Heredity 
riability in expression and the difficulty 
of propagating extreme plants it would 
seem not unreasonable to assume that 
adherence is a simple Mendelian char- 
acter recessive to the normal condition 
and its linkage relations to the other 
variations should be studied. Owing 
to the difficulty in obtaining seed only 
very small quantities can be furnished 
interested investigators. 
TABLE I — CLASSIFICATION OF THE PLANTS OF THE SECOND GENERATION OF THE BRACHYTIC- 
BoonE Hysrip WHICH PRODUCED ADHERENT PLANTS 
Progeny Normal Stature 
Brachytic Stature 
Adherent % in! % Adherent in 
Designation 
entire progeny | plants of nor- 
Normal | Adherent} Normal | Adherent mal stature 
Dh436W1L19...... 66 ' 17 18 0 16.8+2.49 20.5+2.98 
Dh436W2L19...... 58 | 22 24 0 DileyD =D eval PH eevee) 315) 
Totals, cross ene 124 39 eee: 0 19.0+1.85 23.9+2.25 
TaBLeE II—Classification of the Plants of the Progenies of the Adherent Variation 
(N=Normal; A=Adherent ) 
MATURE PLANTS Percent 
_ Seedlings | Percent ercen 
PROGENY Normal | Brachytic Adherent | Percent 
DESIGNATION Stature | Stature Ee Saner Mature | Brachytic 
eedlings Piney 
NIA|N/IA| N|A ae 
Adherent Self-Pol...........| 27) 10) 0] 22 0} 8 | 27.0+4.9 |100.0 26.7+5.4 
~ tee me Rew csieh 74) 41 2 | 34 0} 0 | 35.6+3.0} 94.44+2.6| 0.0 
ns: pA Ne Wee Wee ted 44] 18 st 25} 1} 5 |29.043.9} 87.5+3.5) 18.8+4.7 
Adherent x Adherent....... DSN 32 |) Ale28 0} 0 | 56.2+4.4] 87.54+3.9) 0.0 
ss SR en ae 114 | 34 | 12 | 12 7| 3) 23.0+2'.3)| 44.145. 7) 29. 4ee5e6 
Brachytic Self-Pol.......... 53 | 13 13| 9 | 19.7+3.3] 40.9+7.1/100.0 
os SMa ceca ete 19} 17 47.2+5.6|100.0 
Six sister brachytic progenies 
Sel pole aackrelanna senses 180 0.0 100.0 
Brachytic x Adherent Fy..... 12 12 0.0 52.27.10 
