By H D Cooper, Toby Hodgkin, Charlie Spillane
This booklet specializes in the formerly ignored interface among the conservation of plant genetic assets and their usage. in simple terms via usage can the capability price of conserved genetic assets be realised. even if, as this ebook indicates, a lot conserved germplasm needs to be subjected to long term pre-breeding and genetic enhancement sooner than it may be utilized in plant breeding programmes.The authors discover the explanation and techniques for such pre-breeding efforts because the foundation for broadening the genetic bases of crop creation. Examples from a number significant nutrition vegetation are awarded and concerns analysed by way of best professionals from around the globe.
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Private/public sector cooperation. , Chapter 20, for different uses. this volume. Evaluation and molecular data. 1. continued Crop and objective Starting material Selection process Maize (HOPE, Guelph) To overcome narrow genetic base in Canada caused by: (i) daylength bottleneck between tropical and temperate maize; and (ii) intensive hybrid breeding. Open ended: initially 43 entries Hierarchical: (adapted OPVs, synthetics, L level (all introductions): composites, and 4 doublestratified mass selection.
Spillane, C. (1999) Recent Developments in Biotechnology as they Relate to Plant Genetic Resources for Food and Agriculture. Background Study Paper No. 9, FAO Commission on Genetic Resources, Rome. , Gass, T. and Cooper, D. (1999) Strengthening National Programmes for Plant Genetic Resources for Food and Agriculture. Issues in Genetic Resources No. 8, IPGRI, Rome. , Scheidegger, U. and Buruchara, R. (1996) Designing Seed Systems with Small Farmers: Principles Derived from Bean Research in the Great Lakes region of Africa.
The long-term effect of these different emphases and approaches is equally uncertain both in respect of their impact on production and in respect of their impact on available genetic diversity for crop production systems. At the present time, a number of new approaches offer advances in crop improvement. These include gene-transfer and the use of marker-assisted selection as tools for managing ‘useful’ trait diversity and improving the efficiency and scope of both conventional plant breeding and genetic engineering.