True cassava seed: research for a production alternative
1991
Iglesias, C.A. | Hershey, C.H.
The overall objective of the proposed strategy is to develop True Cassava Seed (TCS) as an alternative commercial production system to traditional vegetative reproduction of cassava. The specific objectives are: to generate exptl. results determining the potential for TCS as a viable production system; to study different alternatives to overcoming the presently recognized constraints for TCS; and to formulate an inter-disciplinary research approach supporting the new cropping system. The components of this strategy are: a) Socioeconomic studies to define potential acceptability and impact in different regions, farming systems, markets, and economic strata of farmers. b) Research on alternatives for genetic structure of cassava varieties produced via TCS. Apomixis induction, double-haploid production, and selection for TCS related traits will be studied. c) Development of TCS crop management alternatives that enhance crop establishment and production. d) Supporting research in the areas of seed production, conservation, germination, and phytosanitary management. Highest benefits would accrue to farmers in regions where vegetative propagation of cassava is especially problematic. This included much of Africa, where African Cassava Mosaic Virus is a major yield constraint, and is passed from one cycle to the next by planting cuttings; and the drier cassava producing regions, where stem storage is difficult due to long storage periods. High potential is also likely in more intensively managed systems, as are commonly found in Asia. Due to the interinstitutional nature of the research, this project would strengthen linkages among a wide range of institutions in both the developed and developing world. The research will also provide spin-off results applicable in improvement of cassava for traditional vegetative reproduction
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