Seeds from flowers spontaneously
self-fertilised under a net were at the same time saved from the same
mother-plant, the Painted Lady. These seeds unfortunately did not
germinate on sand at the same time with the crossed seeds, so that they
could not be planted simultaneously. One of the two crossed seeds in a
state of germination was planted in a pot (Number 1) in which a
self-fertilised seed in the same state had been planted four days
before, so that this latter seedling had a great advantage over the
crossed one. In Pot 2 the other crossed seed was planted two days before
a self-fertilised one; so that here the crossed seedling had a
considerable advantage over the self-fertilised one. But this crossed
seedling had its summit gnawed off by a slug, and was in consequence for
a time quite beaten by the self-fertilised plant. Nevertheless I allowed
it to remain, and so great was its constitutional vigour that it
ultimately beat its uninjured self-fertilised rival. When all four
plants were almost fully grown they were measured, as here shown:--
TABLE 5/54. Lathyrus odoratus.
Heights of plants measured in inches.
Column 1: Number (Name) of Pot.
Column 2: Crossed Plants.
Column 3: Self-fertilised Plants.
Pot 1 : 80 : 64 4/8.
Pot 2 : 78 4/8 : 63.
Total : 158.5 : 127.5.
The two crossed plants here average 79.25, and the two self-fertilised
63.
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