Pleasant Talk About Fruits, Flowers and Farming

by Henry Ward Beecher

several among them vary, some more and others less, and when they have once departed from their natural state, they never again return to it, but are removed more and more therefrom, by successive generations, and produce, sufficiently often, distinct races, more or less durable, and that finally if these variations are even carried back to the territory of their ancestors, they will neither represent the character of their parents, or ever return to the species from whence they sprung.”

Accordingly, Van Mons began to sow the seeds of natural and wild fruit which were in a variable state. By all means within his power he hastened his seedlings to show fruit. The first generation showed only poor fruit but decidedly better than the wild. Selecting the seed of the best of these, he sowed again. From the fruit of these he sowed the third generation. From the third, a fourth; and from the fourth, a fifth; as far as the eighth generation.

His experience showed that there was great difference among different species of fruit in the number of generations through which they must pass before they were perfect. The apple yielded good fruit in the fourth generation. Stone fruits produced perfect kinds in the third generation. Some varieties afforded perfect fruit in the fifth generation, while others go on improving to the eighth.

The time required for this renovation diminished at each remove from the normal or wild state. Thus, the trees from the second sowing of the pear-seed fruited in from ten to twelve years; those from their seed, or of the third genetion in from eight to ten years; those of the fourth generation in from six to eight years; those of the fifth generation, in six years, and those in the eight, in four years. These are the mean terms of all his experiments.

To obtain perfect stone fruits, through four successive generations, from parent to son, required from twelve to fifteen years; the apple required twenty years, and the pear,

when carried only to the fifth generation, required from thirty to thirty-six years.

Hybridization, or Knight’s Method.—Andrew Knight, one of the most original and philosophic horticulturists that ever lived, pursued an entirely different method—that of cross-fertilization. He carefully removed the anthers from the blossoms upon which he wished to operate, so that the stigma should not receive a particle of the pollen belonging to its own flower. He then procured from the variety which he wished to cross, a portion of the pollen, and artificially impregnated the prepared blossom with it. When the fruit thus produced had ripened its seeds, they were sown, and by regular process brought into bearing. The progeny were found to combine, in various degrees of excellence, the qualities of both parents.

REMARKS ON THE TWO METHODS.

1. Both Van Mons and Knight believed in a degeneracy of plants; but the degeneracy of the one system is not to be confounded with that of the other.

Knight believed that varieties had a regular period of existence; although, as in animal life, care and skill might make essential difference in the longevity, yet they could in nowise avert the final catastrophe; a time would come, sooner or later, at which the vegetable vitality would be expended, and the variety must perish by exhaustion—by running out.