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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 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 Use of DNA capture kits to collect <i xmlns="http://www.w3.org/1999/xhtml">Xanthomonas campestris</i> pv. <i xmlns="http://www.w3.org/1999/xhtml">musacearum</i> and banana bunchy top virus pathogen DNA for molecular diagnostics.

Banana Xanthomonas wilt, caused by the bacterium Xanthomonas campestris pv. musacearum, and banana bunchy top virus disease (BBTD), caused by the banana bunchy top virus (BBTV), are two of the most devastating diseases of banana in East and Central Africa, and cause significant losses in food...

Author(s)
Ramathani, I.; Beed, F.
ISBN
2013 CABI (H ISBN 9781780642314)
Type
Book chapter
CABI Book Chapter Info
Cover for Communication approaches for sustainable management of banana Xanthomonas wilt in East and Central Africa.

The East and Central African region has been devastated by a banana Xanthomonas wilt epidemic caused by Xanthomonas campestris pv. musacearum. Xanthomonas wilt is widespread in Uganda, eastern Democratic Republic of Congo (DR Congo), Rwanda, Kenya and Tanzania, and has been confirmed as present in...

Author(s)
Tinzaara, W.; Karamura, E.; Blomme, G.; Jogo, W.; Ocimati, W.; Kubiriba, J.
ISBN
2013 CABI (H ISBN 9781780642314)
Type
Book chapter

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