A guide to the orchard and kitchen garden; or, An account of ... fruit and vegetables, ed. by J. Lindley

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Página ix - It is probable that it was originally due to accident, and also that it was still mere chance which continued to operate down to very modern times. Philosophers are unacquainted with the reason why there should be any tendency to variation from the characters first stamped on any species by Nature ; but all know that this tendency does exist, and in a most remarkable degree in many species. There is in all beings a disposition to deviate from their original nature when cultivated, or even in a wild...
Página 507 - OBSERVATIONS ON THE DISEASES, DEFECTS, AND INJURIES, | IN ALL KINDS OF FRUIT AND FOREST TREES." WITH AN ACCOUNT OF | A PARTICULAR METHOD OF CURE, | PUBLISHED BY ORDER OF GOVERNMENT.
Página 575 - ... sowing of seed for general crops until June or July. If a small quantity of each esteemed variety be sown two or three times in these months, they will produce a plentiful supply for use in autumn and the early part of winter. One ounce of good Endive-seed will produce about five thousand plants. When the plants...
Página x - The power of procuring intermediate varieties, by the intermixture of the pollen and stigma of two different parents, is, however, that which most deserves consideration. We all know that hybrid plants are constantly produced in every garden, and that improvements of the most remarkable kind are yearly occurring in consequence.
Página xiii - Physiologists know that whatever tends to cause a rapid diffusion of the sap and secretions of any plant, causes also the formation of leaf buds instead of flower buds ; and that whatever on the contrary tends to cause an accumulation of sap and secretions, has the effect of producing flower buds in abundance ;" so that a flower bud is often only a contracted branch.
Página 371 - Cones, egg-shaped, solitary, broadest near the base, and tapering to a point, three inches and a half long, and two inches and a half...
Página xii - It seems that cross fertilisation will not take place at all, or very rarely, between different species, unless these species are nearly related to each other; and that the offspring of the two distinct species is itself sterile, or if it possesses the power of multiplying itself by seed, its progeny returns back to the state of one or other of its parents.
Página 466 - York, some time in the end of last century. It remained barren several years, till, during a violent thunder-storm, the whole trunk was struck to the earth and destroyed. The root afterwards threw out a number of vigorous shoots, all of which were allowed to remain, and finally produced fruit. It is, therefore, to be presumed that the stock of the barren kind was the parent of this. Trees were sent to Mr.
Página xi - ... destined by nature for this service, into a little opening in the integuments of the ovulum or young seed. Once deposited there, the particle swells, increases gradually in size, separates into radicle and cotyledons, and finally becomes the embryo, — that part which is to give birth, when the seed is sown, to a new individual. " Such being the mode in which the pollen influences the stigma and subsequently the seed, a practical consequence of great importance necessarily follows, viz. that...
Página 508 - ... till the whole is covered over with it, letting it remain for half an hour, to absorb the moisture ; then apply more powder, rubbing it on gently with the hand, and repeating the application of the powder till the whole plaster becomes a dry smooth surface.

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