The remaining nineteen plants, when almost fully grown, were
measured, with the following result:
TABLE 2/13. Ipomoea purpurea.
Heights of Plants in inches:
Column 1: Number (Name) of Pot.
Column 2: Colchester-Crossed Plants.
Column 3: Intercrossed Plants of the Tenth Generation.
Pot 1 : 87 : 78.
Pot 1 : 87 4/8 : 68 4/8.
Pot 1 : 85 1/8 : 94 4/8.
Pot 2 : 93 6/8 : 60.
Pot 2 : 85 4/8 : 87 2/8.
Pot 2 : 90 5/8 : 45 4/8.
Pot 3 : 84 2/8 : 70 1/8.
Pot 3 : 92 4/8 : 81 6/8.
Pot 3 : 85 : 86 2/8.
Pot 4 : 95 6/8 : 65 1/8.
Pot 5 : 90 4/8 : 85 6/8.
Pot 5 : 86 6/8 : 63.
Pot 5 : 84 : 62 6/8.
Pot 6 : 90 4/8 : 43 4/8.
Pot 6 : 75 : 39 6/8.
Pot 6 : 71 : 30 2/8.
Pot 6 : 83 6/8 : 86.
Pot 6 : 63 : 53.
Pot 6 : 65 : 48 6/8.
Crowded plants in a very large pot.
Total : 1596.50 : 1249.75.
In sixteen out of these nineteen pairs, the Colchester-crossed plant
exceeded in height its intercrossed opponent. The average height of the
Colchester-crossed is 84.03 inches, and that of the intercrossed 65.78
inches; or as 100 to 78. With respect to the fertility of the two lots,
it was too troublesome to collect and count the capsules on all the
plants; so I selected two of the best pots, 5 and 6, and in these the
Colchester-crossed produced 269 mature and half-mature capsules, whilst
an equal number of the intercrossed plants produced only 154 capsules;
or as 100 to 57.
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