Knowledge Center Catalog

Quality seed and seed production procedures for cassava and sweet potato

By: Contributor(s): Material type: TextTextPublication details: Mexico, DF (Mexico) CIMMYT : 2004Description: p. 49-57ISBN:
  • 970-648-115-X
Subject(s): DDC classification:
  • 338.1768 SET
Summary: Healthy seed is the basis for obtaining a healthy crop. Cassava and sweet potato are propagated through use of vegetative parts, which entails certain problems, such as low multiplication ratio, bulkiness, short shelf life, and difficult dry season maintenance, in the case of sweet potato. Some diseases, such as cassava mosaic disease, cassava brown streak disease, and sweet potato virus disease, are systemic and can be transmitted through use of vegetative parts. Farmers have to know what constitutes high quality seed in cassava and sweelpotato and how to produce it. Good quality cassava and sweet potato seed sprouts well and grows into a healthy crop, once sown. Such seed should be mature, free of pests and diseases, and true to type. In most Southem Africa Development Community (SADC) countries, commercial seed companies are not interested in producing cassava or sweet potato seed, as they find it unprofitable. Govemment institutions, non-govemmental organizations (NGOs), religious groups, and sma"holder farmers must produce the seed.
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Holdings
Item type Current library Collection Call number Copy number Status Date due Barcode Item holds
Book CIMMYT Knowledge Center: John Woolston Library CIMMYT Publications Collection 338.1768 SET (Browse shelf(Opens below)) 1 Available H630094
Book CIMMYT Knowledge Center: John Woolston Library CIMMYT Publications Collection 338.1768 SET (Browse shelf(Opens below)) 2 Available H630095
Total holds: 0

Healthy seed is the basis for obtaining a healthy crop. Cassava and sweet potato are propagated through use of vegetative parts, which entails certain problems, such as low multiplication ratio, bulkiness, short shelf life, and difficult dry season maintenance, in the case of sweet potato. Some diseases, such as cassava mosaic disease, cassava brown streak disease, and sweet potato virus disease, are systemic and can be transmitted through use of vegetative parts. Farmers have to know what constitutes high quality seed in cassava and sweelpotato and how to produce it. Good quality cassava and sweet potato seed sprouts well and grows into a healthy crop, once sown. Such seed should be mature, free of pests and diseases, and true to type. In most Southem Africa Development Community (SADC) countries, commercial seed companies are not interested in producing cassava or sweet potato seed, as they find it unprofitable. Govemment institutions, non-govemmental organizations (NGOs), religious groups, and sma"holder farmers must produce the seed.

English

0501|AGRIS 0501|AL-Economins Program

Juan Carlos Mendieta

CIMMYT Publications Collection


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