A Genetic Study of Plant Height in Phaseolus Vulgaris. 27 
420 
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(A) 
(C) 
r 
-i 
f 
I- 
-i 
4 
+- 
i 
4 
A 
Jd 
i 
f 
> 
/ 
0 4 8 12 16 20 24 28 32 
0 4 8 12 16 20 
0 4 8 12 
Internode numbers. 
16 20 24 28 
Fig. 12. — Growth curves of the small pole bean Snowflake. (A) Plant 2,424 
(b) grown in a large pot of rich, moist soil in the greenhouse and only a 
few pods permitted to develop. (B) Plant 2,424 (F) grown in a small 
pot of poor soil in the greenhouse and allowed to mature its full crop of 
seeds. (C) Plant 3,425 (f) grown in the garden during a rather hot, dry- 
summer and allowed to mature a heavy crop of seeds. 
