ABSTRACT
The effects of great crowding Competition with other kinds of plants Self-fertilized plants more liable to premature death. Crossed plants generally flower before the self-fertilized Negative effects of intercrossing flowers on the same plant. an equal number of crossed and self-fertilized seeds, or more commonly seedlings just beginning to sprout, were planted on the opposite sides of the same pots, they had to compete with one another; and the greater height, weight, and fertility of the crossed plants may be attributed to their possessing greater innate constitutional vigour. The self-fertilized seedlings had a clear advantage over the crossed in the start for the race. This chapter gives three lists one of the species in which the first plant that flowered was a crossed one a second in which the first that flowered was a self-fertilized plant and a third of those which flowered at the same time.
