Distinguishing the Species of Brassica by Their Seed PDF Download
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Author: Albina Frances Musil
Publisher:
ISBN:
Category : Cruciferae
Languages : en
Pages : 36
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Book Description
Author: Albina Frances Musil
Publisher:
ISBN:
Category : Cruciferae
Languages : en
Pages : 36
Get Book Here
Book Description
Author: Albina Frances Musil
Publisher: Forgotten Books
ISBN: 9780266899822
Category : Science
Languages : en
Pages : 42
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Book Description
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 F. Musil
Publisher:
ISBN:
Category : Cruciferae
Languages : en
Pages : 35
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Book Description
Author: Albina Frances Musil
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 36
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Book Description
Author: Andy Clark
Publisher: DIANE Publishing
ISBN: 1437903797
Category : Technology & Engineering
Languages : en
Pages : 248
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Book Description
Cover crops slow erosion, improve soil, smother weeds, enhance nutrient and moisture availability, help control many pests and bring a host of other benefits to your farm. At the same time, they can reduce costs, increase profits and even create new sources of income. You¿ll reap dividends on your cover crop investments for years, since their benefits accumulate over the long term. This book will help you find which ones are right for you. Captures farmer and other research results from the past ten years. The authors verified the info. from the 2nd ed., added new results and updated farmer profiles and research data, and added 2 chap. Includes maps and charts, detailed narratives about individual cover crop species, and chap. about aspects of cover cropping.
Author: Adrian John Pieters
Publisher:
ISBN:
Category : Brassica
Languages : en
Pages : 32
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Book Description
Author: United States. Bureau of Plant Industry. Division of Seed Investigations
Publisher:
ISBN:
Category :
Languages : en
Pages : 10
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Author: A. J. Pieters
Publisher: Forgotten Books
ISBN: 9780265857809
Category :
Languages : en
Pages : 24
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Book Description
Excerpt from The Seed Coats of Certain Species of the Genus Brassica One of the troubles with which the seedsman has to contend is the complaint that he has sold turnip for cabbage or cauliflower seed, or the seed of a wild and weedy mustard for that of turnip or ruta-baga. The seedsman may have furnished the seeds in good faith, but he may have been deceived by the grower or by the wholesaler. It is, how ever, seldom possible to determine how far the trouble is due to care lessness on the part of the planter and inhow far the seedsman is at fault. The seed bought has all been planted and the seedsman may insist that from other lots taken out of the same bag satisfactory results were obtained. Even when the purchaser has saved some seed, it is impossible without another season's test to determine what the seed really is. In external appearance the seeds of the different species and varieties of this genus are so similar that it is at all times a difficult matter to certainly identify a given lot, and it may be wholly impossible to do so. The resemblance between the seeds of cheap and of high-priced Bras sicas has always tempted certain seedsmen to mix more or less of the one with the other. This was at one time carried so far in England that factories were established where seeds of cheap Brassicas were heated to destroy their germination so that the fraud might escape detection. This practice was stopped by the adulteration of seeds bill which passed Parliament in 1869. While it is not difficult for an expert when examining a large sample of seed to pronounce it cab bage, rape, or mustard, it is impossible for him to pronounce upon mixtures, and even determinations of pure samples may be open to doubt. Fortunately we possess in the structure of the seed coat a means of identification by which most of the species studied may be readily distinguished. This method has been employed by various investigators, mainly for the purpose of determining the seeds used in the preparation of oil cakes, and the results have found their way into most pharmacopoeias. 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: Richard Ellis Ford Matthews
Publisher: Gulf Professional Publishing
ISBN: 9780123611604
Category : Plant diseases
Languages : en
Pages : 1084
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Book Description
It has been ten years since the publication of the third edition of this seminal text on plant virology, during which there has been an explosion of conceptual and factual advances. The fourth edition updates and revises many details of the previous editon, while retaining the important older results that constitute the field's conceptual foundation. Key features of the fourth edition include: * Thumbnail sketches of each genera and family groups * Genome maps of all genera for which they are known * Genetic engineered resistance strategies for virus disease control * Latest understanding of virus interactions with plants, including gene silencing * Interactions between viruses and insect, fungal, and nematode vectors * New plate section containing over 50 full-color illustrations.
Author:
Publisher: Academic Press
ISBN: 0128139404
Category : Medical
Languages : en
Pages : 983
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Book Description
Pharmacoepigenetics, Volume Eleven provides a comprehensive volume on the role of epigenetics and epigenomics in drug discovery and development, providing a detailed, but accessible, view of the field, from basic principles, to applications in disease therapeutics. Leading international researchers from across academia, clinical settings and the pharmaceutical industry discuss the influence of epigenetics and epigenomics in human pathology, epigenetic biomarkers for disease prediction, diagnosis, and treatment, current epigenetic drugs, and the application of epigenetic procedures in drug development. Throughout the book, chapter authors offer a balanced and objective discussion of the future of pharmacoepigenetics and its crucial contribution to the growth of precision and personalized medicine. Fully examines the influence of epigenetics and epigenomics in human pathology, epigenetic biomarkers for disease prediction, diagnosis, treatment, current epigenetic drugs and the application of epigenetic procedures in drug development Features chapter contributions from leading international researchers in academia, clinical settings and the pharmaceutical industry Instructs researchers, students and clinicians on how to better interpret and employ pharmacoepigenetics in drug development, efficiency and safety Provides a balanced and objective discussion of the future of pharmacoepigenetics and its crucial role in precision medicine
