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CAB eBooks

Ebooks on agriculture and the applied life sciences from CAB International

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CABI Book Info
Cover for Crop improvement, adoption, and impact of improved varieties in food crops in sub-Saharan Africa.

This book contains 21 chapters presenting the most comprehensive, accurate and informative view of the spread of improved crop cultivars in Africa south of Sahara. The importance of the diffusion and adoption of different crop cultivars and the impacts of the use of these improved cultivars are...

Author(s)
Walker, T. S.; Alwang, J.
ISBN
2015 CABI (H ISBN 9781780644011)
Type
Book
CABI Book Chapter Info
Cover for The importance of generating and documenting varietal change in sub-Saharan Africa.

This chapter focuses on the potential contributions of modern cultivar change to agricultural development in Africa south of Sahara. The direct positive consequences of the use of improved cultivars for food security are discussed and the role of modern cultivar change in setting the stage for the...

Author(s)
Walker, T. S.; Alwang, J.
ISBN
2015 CABI (H ISBN 9781780644011)
Type
Book chapter
CABI Book Chapter Info
Cover for Investments in and impacts of crop improvement research in Africa.

This chapter aims to document evidence about agricultural research investments, describe patterns of change over time, and discuss the current state of knowledge and knowledge gaps. The chapter begins with a discussion of information sources and inherent challenges in assembling consistent time...

Author(s)
Alwang, J.
ISBN
2015 CABI (H ISBN 9781780644011)
Type
Book chapter
CABI Book Chapter Info
Cover for Maize technologies and rural poverty reduction in Ethiopia.

In the past four decades, more than 40 improved maize varieties, including hybrids and open-pollinated varieties, have been developed and released in Ethiopia by the Ethiopian Institute of Agricultural Research in collaboration with the International Maize and Wheat Improvement Centre. Most...

Author(s)
Zeng, D.; Alwang, J.; Norton, G. W.; Shiferaw, B.; Jaleta, M.; Yirga, C.
ISBN
2015 CABI (H ISBN 9781780644011)
Type
Book chapter
CABI Book Chapter Info
Cover for Impacts of improved bean varieties on poverty and food security in Uganda and Rwanda.

This chapter documents the spread and determinants of adoption of improved bean cultivars in Uganda and Rwanda, assesses the causal impact of crop genetic improvement in beans on household welfare and examines the impact of adoption of improved beans on household food security.

Author(s)
Larochelle, C.; Alwang, J.; Norton, G. W.; Katungi, E.; Labarta, R. A.
ISBN
2015 CABI (H ISBN 9781780644011)
Type
Book chapter
CABI Book Chapter Info
Cover for Implications for monitoring progress and assessing impacts.

This chapter focuses on the lessons learned from the diffusion and impact of improved varieties in Africa (DIIVA) experience about ongoing monitoring and measurement of cultivar diffusion and its impacts. The importance of the better use of data for ongoing and future assessment, information on use ...

Author(s)
Alwang, J.
ISBN
2015 CABI (H ISBN 9781780644011)
Type
Book chapter
CABI Book Chapter Info
Cover for Varietal adoption, outcomes and impact.

This chapter focuses on the adoption and turnover of cultivars of crops, such as soyabean, maize, pigeon pea, wheat, cassava, rice, potato, barley, yam, groundnut, bean, sorghum, cowpea, pearl millet, chickpea, faba bean, lentil, sweet potato, banana and pea, in Africa South of Sahara. The changes...

Author(s)
Walker, T. S.; Alwang, J.; Alene, A.; Ndjuenga, J.; Labarta, R.; Yigezu, Y.; Diagne, A.; Andrade, R.; Andriatsitohaina, R. M.; Groote, H. de; Mausch, K.; Yirga, C.; Simtowe, F.; Katungi, E.; Jogo, W.; Jaleta, M.; Pandey, S.; Charyulu, D. K.
ISBN
2015 CABI (H ISBN 9781780644011)
Type
Book chapter
CABI Book Chapter Info
Cover for Relevant concepts and hypotheses in assessing the performance of food crop improvement in sub-Saharan Africa.

This chapter addresses the performance of national and international food crop improvement in Africa south of the Sahara. The main elements of performance are discussed from the perspective of evaluation that centres on inputs, outputs, outcomes and impacts.

Author(s)
Walker, T. S.
ISBN
2015 CABI (H ISBN 9781780644011)
Type
Book chapter
CABI Book Chapter Info
Cover for Coverage, data and methods in assessing the performance of food crop improvement in sub-Saharan Africa.

This chapter was written to provide a reference for readers who want to understand the context underlying the substantive results reported in this volume. It describes the data and how they were collected. The Diffusion and Impact of Improved Varieties in Africa (DIIVA) Project aims to provide...

Author(s)
Walker, T. S.
ISBN
2015 CABI (H ISBN 9781780644011)
Type
Book chapter
CABI Book Chapter Info
Cover for Genetic improvement of the crops in the 1998 initiative: historical context and exploratory analysis.

This chapter focuses on the historical context and exploratory analysis of the genetic improvement of the crops (maize, wheat and rice, among others) in the 1998 initiative by the Diffusion and Impact of Improved Varieties in Africa (DIIVA) project. The importance of the establishment of a reliable ...

Author(s)
Walker, T. S.
ISBN
2015 CABI (H ISBN 9781780644011)
Type
Book chapter

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