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CAB eBooks

Ebooks on agriculture and the applied life sciences from CAB International

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CABI Book Chapter Info
Cover for Development and evaluation of new sweetpotato varieties through farmer participatory breeding for high altitudes in Kenya.

Sweetpotato (Ipomoea batatas L.) plays a significant role in food and nutritional security in Kenya. However, production is constrained by: (i) Sweet potato virus diseases (SPVD) and weevils (Cylas spp.); (ii) shortage of clean planting materials; (iii) lack of suitable varieties for high altitude...

Author(s)
Karanja, L.; Malinga, J.; Ndung'u, J.; Gichangi, A.; Lelgut, D.; Kamundia, J.
ISBN
2015 CABI (H ISBN 9781780644202)
Type
Book chapter
CABI Book Chapter Info
Cover for Durable cisgenic resistance to <i xmlns="http://www.w3.org/1999/xhtml">Phytophthora infestans</i> in potato, and perspectives for applications in Africa.

Late blight caused by Phytophthora infestans is a major constraint in potato production. A promising strategy to combat late blight in potato is to combine different resistance genes to achieve durable resistance. Resistance genes from wild relatives can be introduced by breeding or by...

Author(s)
Gheysen, G.; Heremans, B.; Droogenbroeck, B. van; Custers, R.; Vossen, J. H.; Visser, R. G. F.; Jacobsen, E.; Hutten, R.; Haverkort, A. J.
ISBN
2015 CABI (H ISBN 9781780644202)
Type
Book chapter
CABI Book Chapter Info
Cover for Exhibition trial and farmer participatory selection of new late-blight resistant B3C1 potato genotypes for adaptation to Nigerian conditions.

Nineteen late-blight resistant B3C1 potato genotypes received from the International Potato Center (CIP) and two local checks were planted in an exhibition trial conducted in three potato-growing locations on the Jos Plateau of Nigeria in the 2007 rainy season. The field trials were situated in...

Author(s)
Amadi, C. O.; Lang, A. J.; Dung, E. A.; Lenka, D. M.; Dalyop, T. Y.; Landeo, J. A.
ISBN
2015 CABI (H ISBN 9781780644202)
Type
Book chapter
CABI Book Chapter Info
Cover for Risk of uncontrolled importation of seed potato from Europe to East and Central Africa: what are the policy options?

Potato (Solanum tuberosum) is an important food and cash crop. It is among the 10 strategic staple crops for food and income security in Eastern and Central Africa (ECA). Its importance continues to rise due to increased urbanization, change in eating habits and uptake of processed potato products...

Author(s)
Kaguongo, W.; Rwomushana, I.; Kashaija, I. N.; Ntizo, S.; Kabira, J.
ISBN
2015 CABI (H ISBN 9781780644202)
Type
Book chapter
CABI Book Chapter Info
Cover for Integration of <i xmlns="http://www.w3.org/1999/xhtml">in vitro</i> techniques in informal seed production systems of potato in Africa.

Presently, Asia and Europe are the world's major potato (Solanum tuberosum L.) producing regions, accounting for more than 80% of world production. Harvests in Africa and Latin America are far smaller, with productivity of around 11-12 t/ha and 16 t/ha, respectively, in comparison with North...

Author(s)
Kumar, V. A.; Kumar, A.
ISBN
2015 CABI (H ISBN 9781780644202)
Type
Book chapter
CABI Book Chapter Info
Cover for An alternative technology for pre-basic seed potato production - sand hydroponics.

Conventional systems of seed potato production in sub-Saharan Africa (SSA) started to have serious challenges concerning substrate sterilization particularly with the threats from Ralstonia solanacearum (Gildemacher, 2012). At the same time over the last two decades there has been an increase in...

Author(s)
Mbiri, D.; Schulte-Geldermann, E.; Otazu, V.; Kakuhenzire, R.; Demo, P.; Schulz, S.
ISBN
2015 CABI (H ISBN 9781780644202)
Type
Book chapter
CABI Book Chapter Info
Cover for Improving seed health and seed performance by positive selection in three Kenyan potato varieties.

Selecting seed potatoes from healthy-looking mother plants (positive selection, PS) was compared with the common Kenyan farmer practice of selection from the harvested bulk of potatoes (farmer selection, FS) in 23 farmer-managed trials. Data was obtained from replicated researcher- and...

Author(s)
Schulte-Geldermann, E.; Gildemacher, P. R.; Struik, P.
ISBN
2015 CABI (H ISBN 9781780644202)
Type
Book chapter
CABI Book Chapter Info
Cover for Disease management, especially viruses in potato and sweetpotato.

Potato (Solanum tuberosum) and sweetpotato (Ipomoea batatas) are the fourth and seventh most important crop plants. Both are important subsistence crops in East Africa and complement each other since their growth requirements differ. Potato and sweetpotato are vegetatively propagated, making them...

Author(s)
Valkonen, J. P. T.; Kreuze, J. F.; Ndunguru, J.
ISBN
2015 CABI (H ISBN 9781780644202)
Type
Book chapter
CABI Book Chapter Info
Cover for <i xmlns="http://www.w3.org/1999/xhtml">Phytophthora infestans</i> population changes in Kenya pose challenges to existing potato blight control strategies.

Potato blight caused by Phytophthora infestans remains the leading biotic constraint to production of potato (Solanum tuberosum), the second most important food crop in Kenya. Until recently, the local population of P. infestans in Kenya was a typical US-1 clonal lineage of A1 mating type...

Author(s)
Nyongesa, M.; Lung'aho, C.; Wasilwa, L.; Mbiyu, M.; Onditi, J.; Otieno, S.
ISBN
2015 CABI (H ISBN 9781780644202)
Type
Book chapter
CABI Book Chapter Info
Cover for Root knot nematodes and soft rot <i xmlns="http://www.w3.org/1999/xhtml">Enterobacteriaceae</i>, two emerging problems of potatoes.

The soft rot Enterobacteriaceae (SRE) and root knot nematodes (RKN) are major pathogens of potatoes and other crops globally; one of the most threatening emerging species of SRE is the newly identified Dickeya solani biovar 3. Using advanced molecular-based technologies for identification and...

Author(s)
Moleleki, L. N.
ISBN
2015 CABI (H ISBN 9781780644202)
Type
Book chapter

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