cross-breeding is necessary to make species, but true breeding preserves them.
The cross-breeding of stock was another subject he had taken up.
cross-breeding in plants consists in fertilizing one variety with the pollen of another variety of the same species.
In the animal kingdom the mule is a common example of this cross-breeding.
These are merged by cross-breeding into the original type, which, therefore, remains unchanged.
Both the wool and the mutton have been improved by cross-breeding with good stock.
Individual varieties are constantly being formed and again funded back into the common stock by cross-breeding.
But the product of a hundred years of cross-breeding was a splendid type of citizenship.
It may be compared to cross-breeding in animals, though the process does not exactly correspond.
The cause of that lies very likely in the nutrition of the young fry, and perhaps, also, partly in cross-breeding.
Verb To produce a hybrid animal or plant by breeding two animals or two plants of different species or varieties. For example, crossbreeding a male donkey with a female horse will produce a mule.
Noun An animal or a plant produced by breeding two animals or plants of different species or varieties; a hybrid.