Some Distinguishing Characters of Certain Species of the Genus Brassica PDF Download
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Author: United States. Bureau of Plant Industry. Division of Seed Investigations
Publisher:
ISBN:
Category :
Languages : en
Pages : 10
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Author: United States. Bureau of Plant Industry. Division of Seed Investigations
Publisher:
ISBN:
Category :
Languages : en
Pages : 10
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Book Description
Author: Albina Frances Musil
Publisher: Forgotten Books
ISBN: 9780266899822
Category : Science
Languages : en
Pages : 42
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Excerpt from Distinguishing the Species of Brassica by Their Seed Present-day investigators recognize the importance of the chromo some number as an aid in the determination of species. As pointed out by Sinskaia however, crossability with other species and the character of the hybrids must also be taken into consideration in establishing the relationship of different forms. For example, B. Kaber (b arvensis) and B oleracea have the same chromosome number, but no record has been found of a successful cross between the two species. Sutton (54) and others have shown that when a successful cross between distinct species is accomplished it may produce sterile hybrids or a segregation of nondescript character in F2. Unfortu nately, seed and plant specimens are rarely cited in the literature to substantiate the authenticity of materials used in cytological research. This is particularly important in the genus Brassica, since the seeds are not commonly recognized and the Variable nature of the plants requires critical identification. In the absence of such records it can only be assumed that the reported results are based on authentic material. 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: Albina Frances Musil
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 36
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Author: Albina Frances Musil
Publisher:
ISBN:
Category : Cruciferae
Languages : en
Pages : 36
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Author: Adrian John Pieters
Publisher:
ISBN:
Category : Brassica
Languages : en
Pages : 32
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Author:
Publisher:
ISBN:
Category : Agricultural libraries
Languages : en
Pages : 578
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Author: United States. Department of Agriculture. Library
Publisher:
ISBN:
Category : Agricultural libraries
Languages : en
Pages : 572
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Author: Adrian John Pieters
Publisher:
ISBN:
Category : Brassica
Languages : en
Pages : 19
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Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 36
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Author: International Seed Testing Association
Publisher:
ISBN:
Category : Seed industry and trade
Languages : en
Pages : 1022
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