Working Document Series Open Access 2012 RUF-31575

Unravelling the Potential of Sweet Sorghum for Sugar Production in Kenya

G. AbayoM. DidaP. OkoriC. Olweny

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Abstract

203 words

Sorghum (Sorghum bicolor (L.) Moench is an important food and increasingly industrial crop and serves as a source for starch and sugars for biofuel production world wide and especially in sub-Saharan Africa. Sweet sorghum (Sorghum bicolor L.) Moench) is one of many types of cultivated sorghum, noted for its high sugar content in the stem juice. Even though the technologies to process sugar products from sweet-sorghum exits, the constraints for its large-scale cultivation are the limited availability of genotypes suited to different agro-climatic conditions in sub-Sahara Africa. Kenya the leading producer and consumer of sugar in Eastern and Central Africa currently only depends on sugarcane for sugar. The purpose of this study is to characterise sweet sorghum introductions from regional as well as international sources to support a breeding programme that will provide Kenyan and African farmers with high yielding sweet sorghum germplasm. The study will use a combination of molecular tools such as single sequence repeat (SSR) markers and amplified fragment length polymorphism (AFLP) markers, quantitative trait loci (QTL) identification as well as phenotypic profiling of sweet sorghum lines for sucrose. Outputs from the study will include germplasm that could directly be used for sucrose production and breeding lines for further improvement.

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