It
should be remembered that these plants had been bedded out in their
pots, so that they were subjected to very severe competition. This pot
was now thrown away.
The six plants in Pot 2 were all alive. One of the self-fertilised was
an inch and a quarter taller than any one of the crossed plants; but the
other two self-fertilised plants were in a very poor condition. I
therefore resolved to leave these plants to struggle together for some
years. By the autumn of the same year (1869) the self-fertilised plant
which had been victorious was now beaten. The measurements are shown in
Table 5/59.
TABLE 5/59. Pot 2.--Sarothamnus scoparius.
Heights of plants measured in inches.
Column 1: Crossed Plants.
Column 2: Self-fertilised Plants.
: 15 6/8 : 13 1/8.
: 9 6/8 : 3.
: 8 2/8 : 2 4/8.
The same plants were again measured in the autumn of the following year,
1870.
TABLE 5/60. Pot 2.--Sarothamnus scoparius.
Heights of plants measured in inches.
Column 1: Crossed Plants.
Column 2: Self-fertilised Plants.
: 26 2/8 : 14 2/8.
: 16 4/8 : 11 4/8.
: 14 : 9 6/8.
Total : 56.75 : 35.50.
The three crossed plants now averaged 18.91, and the three
self-fertilised 11.83 inches in height; or as 100 to 63. The three
crossed plants in Pot 1, as already shown, had beaten the three
self-fertilised plants so completely, that any comparison between them
was superfluous.
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