Part 18 (1/2)
Column 1: Number (Name) of Pot.
Column 2: Crossed Plants.
Column 3: Self-fertilised Plants.
Pot 1 : 21 : 12 7/8.
Pot 1 : 14 2/8 : 16.
Pot 1 : 19 1/8 : 11 7/8.
Pot 1 : 7 : 15 2/8.
Pot 1 : 15 1/8 : 19 1/8.
Pot 2 : 20 4/8 : 12 4/8.
Pot 2 : 17 3/8 : 16 2/8.
Pot 2 : 23 7/8 : 16 2/8.
Pot 2 : 17 1/8 : 13 3/8.
Pot 2 : 20 6/8 : 13 5/8.
Pot 3 : 16 1/8 : 14 4/8.
Pot 3 : 17 6/8 : 19 4/8.
Pot 3 : 16 2/8 : 20 7/8.
Pot 3 : 10 : 7 7/8.
Pot 3 : 10 : 17 6/8.
Pot 4 : 22 1/8 : 9.
Pot 4 : 19 : 11 4/8.
Pot 4 : 18 7/8 : 11.
Pot 4 : 16 4/8 : 16.
Pot 4 : 19 2/8 : 16 3/8.
Pot 5 : 25 2/8 : 14 6/8.
Pot 5 : 22 : 16.
Pot 5 : 8 6/8 : 14 3/8.
Pot 5 : 14 2/8 : 14 2/8.
Total : 412.25 : 350.86.
The average height of the twenty-four crossed plants is here 17.17 inches, and that of the same number of self-fertilised plants 14.61; or as 100 to 85. Of the crossed plants all but five flowered, whilst several of the self-fertilised did not do so. The above pairs, whilst still in flower, but with some capsules already formed, were afterwards cut down and weighed. The crossed weighed 90.5 ounces; and an equal number of the self-fertilised only 19 ounces, or as 100 to 21; and this is an astonis.h.i.+ng difference.
Seeds of the same two lots were also sown in two adjoining rows in the open ground. There were twenty crossed plants in the one row and thirty-two self-fertilised plants in the other row, so that the experiment was not quite fair; but not so unfair as it at first appears, for the plants in the same row were not crowded so much as seriously to interfere with each other's growth, and the ground was bare on the outside of both rows. These plants were better nourished than those in the pots and grew to a greater height. The eight tallest plants in each row were measured in the same manner as before, with the following result:--
TABLE 4/36. Reseda lutea, growing in the open ground.
Heights of plants to the summits of the flower-stems measured in inches.
Column 1: Crossed Plants.
Column 2: Self-fertilised Plants.
28 : 33 2/8.
27 3/8 : 23.