We live in critical times for the world's diversity of plants and animals. It is universally agreed that a catastrophic loss of biological
diversity is occurring at the moment, with species and, equally importantly, gene combinations, being lost in perpetuity. However, the signing of the
Biodiversity Convention at the 'Earth Summit' in 1992 drew attention to the need to conserve and equitably utilise biological diversity for the benefit of all
humankind. The convention placed emphasis on the need for a complementary approach to conservation that employed both ex situ and in situ
techniques.
Though much conservation and genetic research has focused on ex situ techniques, where the biological diversity is moved from its
original location for safe storage, relatively little progress has been made in developing strategies appropriate for the genetic conservation of biological
diversity in situ, in its native environment. The time is right for a definitive assessment of the principles required to conserve the genetic
diversity of crops, their wild relatives and wild species within natural habitats.
This book therefore provides a practical and theoretical introduction to the techniques of in situ conservation of plant genetic
resources. It includes methodologies, case studies and indepth discussion of on-farm and genetic reserve conservation, written by acknowledged
international experts on the subject.
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