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In Vitro Methods for Conservation of Plant Genetic Resources

Editors: Dodds, J.H. (Ed.)

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About this book

However, the transition from primitive to 'advanced' cultivars has had the effect of narrowing the genetic base. This has happened in two distinct ways: (1) selection for relative uniformity, resulting in 'pure' lines, multi­ lines, single or double hybrids, etc. ; and (2) selection for closely defined objectives. Both of these processes have resulted in a marked reduction in genetic variation. At the same time, there has been a tendency to restrict the gene pool from which parental material has been drawn. This is a result of the high level of productivity achieved when breeding within a restricted but well-adapted gene pool, and of breeding methods which have made it possible to introduce specifically desired improvements, such as disease resistance and quality characteristics, into breeding stocks with a minimum of disturbance to genotypic structure. Developments in agriculture, such as intensive mechanization, the widespread application of fertilizers and the use of herbicides, fungicides and pesticides, have created a situation whereby a few, selected high­ yielding cultivars may be grown over large parts of the earth, so further contributing to a decline in crop genetic diversity. This process is under way in all countries, both developed and developing, and unfortunately in­ cludes some of the richest primary and secondary gene centres of several important food crops.

Reviews

...recommended to all involved with plant genetic conservation and to postgraduate students of in vitro methods. - The Biologist

Buy this book

Hardcover $219.99
price for USA in USD
  • ISBN 978-0-412-33870-0
  • Free shipping for individuals worldwide
  • Immediate ebook access, if available*, with your print order
  • Usually ready to be dispatched within 3 to 5 business days.
Softcover $149.99
price for USA in USD
  • ISBN 978-94-010-5362-4
  • Free shipping for individuals worldwide
  • Immediate ebook access, if available*, with your print order
  • Usually ready to be dispatched within 3 to 5 business days.
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Bibliographic Information

Bibliographic Information
Book Title
In Vitro Methods for Conservation of Plant Genetic Resources
Editors
  • J.H. Dodds
Copyright
1991
Publisher
Springer Netherlands
Copyright Holder
Springer Science+Business Media Dordrecht
Hardcover ISBN
978-0-412-33870-0
Softcover ISBN
978-94-010-5362-4
Edition Number
1
Number of Pages
VIII, 247
Topics

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