IX 



HEREDITY 169 



Sultani x Afifi 



0-050 0-100 0-150 gram 



FIG, 67. MEAN SEED-WEIGHT IN INTER- EGYPTIAN CROSS. 



0-050 0-100 0-150 gmm 



FIG. 68. MEAN SEED-WEIGHT IN ^EGYPTO-UPLAND CROSS. 



