130 SIRKS, THE COLOURFACTORS OF THE SEEDCOAT IN PHASEOLUS 
clusion, one might suppose the genotypical identity of the white 
parents in. their whole genotypic constitution, because of the parallel- 
ism: between the various segregations, that have shown all the 
same scheme: 
mmm 















Type ı |ır Jıı IV V VI vu VIII ‚IX | Total 
Artif. hybrid from Wite| 71 10113) 6112) 4| 2 one 
983 Spont. hybrid from Witte 9 2;—| 1) 3—, 2 | 3 5| 25 
ON te oe Ry acs HO POGUE ol Sa ATAG on 38 LEN 
985 >, A = EAST 6 2:| 81-44 
986, Lagat er] Sah os gee, or 
1020 Artif. hybrid from Bruine | 1 2/— — 1 1] 1} — 3) 9 
1024 -, At 8 lbh Beer EKE er Sa 
1025205; Lire tame: BREA OAN Ee Su Se en 
1029 Spont. hybrid from Bruine 23 4| 4 3 19, 9) 7 | 1 | 30 || 110 
10940 5 Pe At OR Sa in 3 3.1.-12 
109755 CARMEN 4 Ud es ere SAR 
1098, soapy renin del slee PT ORNE 
11022 EN Ra SIN NAE en a ‚© 
| 097124110117 155118| 33 | 25 |87 | 366 
148 131 87 || 366 
Though these numerical proportions do not meet in details the 
theoretical suppositions given above, there are certain conclusions, 
that may be drawn from these segregations. The F,-plants may be 
considered to have been heterozygotes in five genotypic factors: 
A (groundfactor for pigmentation), D (factor for coloured navelring), 
G (yellow-brown colour of the seedcoat), L (grey-brown seedcoat) 
and Z (black seedcoat). Probably they were also heterozygotes in 
the factor B, that causes according to Kooiman in heterozygotic 
state the eversporting marbled pattern. In every case the segregation 
is in perfect accordance with the classical proportion 6:64, 
mentioned above, because of the numbers observed to be 148 
marbled : 131 selfcoloured : 87 whites (expected in.a total of 
366 : 1371/4 m:1371/, s:911/, w.). The absence of yellowish brown 
plants however (not only marbled, but also selfcoloured) in the 
rather comprehensive family 984 indicates with some probability 
that its Fj-plant was a homozygote in respect to the L-factor, so 
that the fatherplant seems to have been not a yellow-brown, buta 
