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Breeding cassava for higher yield

Code: 9781838790660
Piya Kittipadakul, Pasajee Kongsil and Chalermpol Phumichai, Kasetsart University, Thailand; and Shelley H. Jansky, USDA-ARS Vegetable Crops Research Unit and University of Wisconsin-Madison, USA

Chapter synopsis: Cassava is a root crop that adapts well to a wide range of environments. A key factor for grower decisions regarding when to plant cassava is whether a profit can be expected from the crop; increasingly, only cassava growers with high productivity can survive in the volatile price environment. This chapter reviews the strategies and factors for success in cassava breeding for higher yield, including the importance of genetic diversity and breeding schemes. There is a particular focus on Thailand, which has hosted some of the most successful breeding programmes involved in improving cassava varieties over a period of more than 40 years.

DOI: 10.19103/AS.2016.0014.18
Table of contents 1 Introduction 2 Genetic diversity for cassava breeding 3 Breeding programmes: key objectives and selection stages 4 Selection schemes for breeding 5 Breeding for higher yield: Thailand as a case study 6 Measuring the success of the Thai breeding programme 7 Relationships among Thai cassava varieties 8 Progress in the current Thai breeding programme 9 Adaptability of varieties 10 Combining ability in Thai varieties 11 Exploitation of homozygosity and heterosis in cassava 12 Conclusion: how to improve cassava breeding programmes 13 Where to look for further information 14 References

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