The Journal of the Horticultural Society of London, 1851, Vol. 6 (Classic Reprint) PDF Download
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Author: Horticultural Society Of London Publisher: Forgotten Books ISBN: 9780483811072 Category : Gardening Languages : en Pages : 366
Book Description
Excerpt from The Journal of the Horticultural Society of London, 1851, Vol. 6 Though, however, the influence of the sex of the parent is not in general exhibited, as in animals, by any outward signs, yet there is often a great difference in the inward constitution of the plants produced by cross impregnation. It is, for instance, by no means a matter of indifference whether Nicotiana rustica be impregnated with the pollen of N, paniculata, or the contrary. In the former case the mule is more fruitful than in the latter, and other similar instances might be adduced. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Horticultural Society Of London Publisher: Forgotten Books ISBN: 9780483811072 Category : Gardening Languages : en Pages : 366
Book Description
Excerpt from The Journal of the Horticultural Society of London, 1851, Vol. 6 Though, however, the influence of the sex of the parent is not in general exhibited, as in animals, by any outward signs, yet there is often a great difference in the inward constitution of the plants produced by cross impregnation. It is, for instance, by no means a matter of indifference whether Nicotiana rustica be impregnated with the pollen of N, paniculata, or the contrary. In the former case the mule is more fruitful than in the latter, and other similar instances might be adduced. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Horticultural Society of London Publisher: Forgotten Books ISBN: 9781330422380 Category : Gardening Languages : en Pages : 366
Book Description
Excerpt from The Journal of the Horticultural Society of London, 1851, Vol. 6 In prosecuting experiments on muling, it becomes important to inquire what is the effect of alternating the sexes of the plants under examination, making that species the subject of hybridization which before supplied the male element. The term crossing, which is used by English authors in a very wide sense, is confined to this especial phenomenon by Kolreuter and his followers. Such experiments are by no means universally successful; but the point of interest is that, where impregnation is perfected, the resulting hybrid is in either case precisely the same. Amongst a number of individuals a few slight variations as to size and colour of the flowers or foliage may exist, but only such as occur wherever a multitude of plants are raised immediately from pure species. This result of cross-impregnation is the more remarkable, since it is directly contrary to what takes place in the animal kingdom, as the well-known crosses between the horse and ass obviously prove. And not only so, but where many individuals are the result of a single act of impregnation, as in the case of the dog and wolf, there is by no means a constant type prevalent through the whole litter. This difference is explicable by the greater unity of type in plants, as regards sexuality, whether absolutely coincident, as in the case of hermaphrodites, or scarcely modified where the sexes are confined to distinct individuals. There are indeed a few cases amongst plants where the sexes are separate, and the typical form different, as in Lychnis diurna and vespertina; but the mules derived from counter-impregnation present no such striking differences as occur amongst animals, and slight variations of type under like circumstances have been observed in the genus Digitalis. D. lanato-ochroleuca, for instance, has short large blossoms, with the upper lip smaller and its margin waved: D. ochroleuco-lanata has a proportionably longer, thinner, and more cylindrical blossom, with a smaller distinctly three-toothed upper lip, and a sharp point in the centre of the lower lip. Other examples might be brought forward in the same genus. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Horticultural Society Of London
Author: Horticultural Society Of London
Author: Horticultural Society of London
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Author: Wilfred Partington
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