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Author : A. B. Stout
Publisher : Unknown
Page : 128 pages
File Size : 40,8 Mb
Release : 1915
Category : Electronic
ISBN : OCLC:604748829
Author : Arlow Burdette Stout
Publisher : Unknown
Page : 104 pages
File Size : 50,7 Mb
Release : 1915
Category : Science
ISBN : UCAL:B4283891
Author : Arlow Burdette Stout
Publisher : Hardpress Publishing
Page : 98 pages
File Size : 46,9 Mb
Release : 2013-12
Category : Electronic
ISBN : 1314919652
Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.
Author : A. B. Stout
Publisher : Unknown
Page : 90 pages
File Size : 48,5 Mb
Release : 2015-07-21
Category : Science
ISBN : 1331955076
Excerpt from The Establishment of Varieties in Coleus by the Selection of Somatic Variations Judgment as to the genetic constitution of a plant is based on the expression of characters in a plant itself, in members of a selfed progeny and in a hybrid progeny. It is largely through the study of the last named that there has developed the conception that characters are represented in cells by unit factors. In considering the evidence as to whether these assumed factors are in any sense units, it is highly essential that the individual be studied as to the variability of characters and the range of expressions exhibited in homologous parts. For this purpose so-called bud variations are especially significant, since they represent, perhaps, the extreme of spontaneous somatic variability and suggest that quite as marked variations as exist in hybrid progeny may develop in the parts of a single individual. In an excellent summary of all cases of bud variation known to him, Darwin (1868) shows that the phenomenon is widely distributed in the plant kingdom and that it may affect various parts of a plant. He drew the highly interesting conclusions that they include: (1) reversions to characters not acquired by crossing, (2) reversions in hybrids to parental characters, and (3) cases of spontaneous variability. The latter he considered as of the same sort as appear in seed progeny. According to Darwin's views, "long-continued and high cultivation" are conditions that induce bud variations, but he recognized that certain cases, especially those when only single buds or parts of buds are changed, do not seem to be due to external conditions. Darwin considered in general that bud variations are evidences of the almost unlimited variability that plants manifest, due to the nature of living structures and the exciting causes of environment. Darwin did not believe in fixed hereditary units. He held that characters may respond directly to the effects of environment, and also exhibit spontaneous variability both in seed and in vegetative propagation. Furthermore, sexual hybridization was considered to be of influence in modifying and changing inherited characteristics. De Vries (1901, vol. i, p. 39) considers that bud variations are spontaneous changes most common in varieties with incompletely fixed characters. 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 : Arlow Burdette Stout
Publisher : Unknown
Page : 110 pages
File Size : 55,8 Mb
Release : 1915
Category : Science
ISBN : UOM:39015005793966
Author : Jules Janick
Publisher : John Wiley & Sons
Page : 454 pages
File Size : 47,9 Mb
Release : 2011-01-11
Category : Science
ISBN : 9781118061084
Plant Breeding Reviews is an ongoing series presenting state-of-the art review articles on research in plant genetics, especially the breeding of commercially important crops. Articles perform the valuable function of collecting, comparing, and contrasting the primary journal literature in order to form an overview of the topic. This detailed analysis bridges the gap between the specialized researcher and the broader community of plant scientists.
Author : Anonim
Publisher : Unknown
Page : 556 pages
File Size : 53,6 Mb
Release : 1934
Category : Agriculture
ISBN : UIUC:30112019309449
Author : NA Hagedoorn
Publisher : Springer
Page : 299 pages
File Size : 46,8 Mb
Release : 2013-12-11
Category : Science
ISBN : 9789401747288
Author : Carnegie Institution of Washington
Publisher : Unknown
Page : 196 pages
File Size : 51,5 Mb
Release : 1919
Category : Electronic
ISBN : WISC:89091505586
Author : United States. Office of Experiment Stations
Publisher : Unknown
Page : 1134 pages
File Size : 45,6 Mb
Release : 1918
Category : Agricultural experiment stations
ISBN : HARVARD:32044106350333
Author : U.S. Office of Experiment Stations,United States. Agricultural Research Service,United States. Office of Experiment Stations
Publisher : Unknown
Page : 1140 pages
File Size : 43,5 Mb
Release : 1918
Category : Agricultural experiment stations
ISBN : UOM:39015075062979
Author : Dan Hansen,Eugene Merritt,Flora Wambaugh Patterson,George Augustus Lawyer,Herbert Harshman Reese,John Enos Graf,Orator Fuller Cook,Victor Nelson Valgren,Frank Leslie Earnshaw
Publisher : Unknown
Page : 676 pages
File Size : 48,8 Mb
Release : 1922
Category : Agricultural cooperative credit associations
ISBN : UIUC:30112019277547
Author : United States. Dept. of Agriculture
Publisher : Unknown
Page : 12 pages
File Size : 43,5 Mb
Release : 1922
Category : Agriculture
ISBN : MINN:31951D02944038F
Author : Carnegie Institution of Washington
Publisher : Unknown
Page : 146 pages
File Size : 55,7 Mb
Release : 1916
Category : Electronic
ISBN : IND:30000108470000
Author : Archibald Dixon Shamel,Hawaiian Sugar Planters' Association. Experiment Station
Publisher : Unknown
Page : 86 pages
File Size : 40,9 Mb
Release : 1921
Category : Bud selection
ISBN : UIUC:30112067913530
