%0 Journal Article
%T The agronomic performance and acceptability of orange fleshed sweetpotato varieties in the Lake zone of Tanzania
%A HP Kulembeka
%A CK Rugutu
%A E Kanju
%A B Chirimi
%A E Rwiza
%A R Amour
%J African Crop Science Journal
%D 2004
%I 
%X The introduction of improved orange-fleshed sweetpotato (Ipomea batatas) varieties from the International Potato Centre (CIP) was a result of recognising the negative health effects of vitamin A deficiency in Tanzania. Orange varieties, which are rich in ¦Â-carotene, were considered one of the sustainable strategies for addressing Vitamin A deficiency. Seven varieties from CIP, five of which were orange-fleshed, were tested on farm for two seasons (2001- 2002) in the Lake zone of Tanzania. Different sweetpotato recipes were prepared and tasted as alternative to boiled sweetpotato roots. Among the introduced orange varieties, Zapallo, NC 1560 and Tainung No 64 produced between 6.04 and 11.86 t ha-1 of fresh total root yield compared to 7.59 t ha-1 of the control variety. Mafutha and Japon tresimesino gave poor yields. Farmers ranked high Zapallo, Tainung No. 64 and NC 1560 for agronomic performance. However, Mafutha, Japon tresimesino and Tainung No. 64 were rated high for cooking quality. Zapallo and NC 1560 were rated high for dry texture. For children, internal root colour was the most important attribute for accepting a variety. Sweetpotato products prepared from orange fleshed varieties were preferred more by both adults and children than those prepared from white fleshed varieties. The over all acceptability of orange varieties and sweetpotato products was high. Key Words: ¦Â-carotine, CIP, Ipomea batatas R¨¦SUM¨¦ L'introduction des vari¨¦t¨¦s am¨¦lior¨¦es de la patate (Ipomea batatas) douce orange graiss¨¦e par le Centre International de la Patate (CIP) ¨¦tait le r¨¦sultat de la reconnaissance d ¡®effets n¨¦gatifs de la carence en vitamine A en Tanzanie. Les vari¨¦t¨¦s oranges qui sont riches en carot¨¨ne-¦Â, ¨¦taient consid¨¦r¨¦ comme l'une des strat¨¦gies durables pour r¨¦soudre la carence en vitamine A. Sept vari¨¦t¨¦s du CIP dont cinq oranges graiss¨¦s, ¨¦taient test¨¦es sur fermes pour deux saisons (2001-2002) dans la r¨¦gion du lac Tanganyika. Diff¨¦rentes recettes de la patate douce ¨¦taient pr¨¦par¨¦es et go t¨¦e comme alternatives a la patate douce. Parmi les vari¨¦t¨¦s oranges introduites, Zapallas, NC 1560 et Tainung No 64 ont produit entre 6.04 et 11.86 t ha-1 des racines fra ches compar¨¦ a 7.59 t ha-1 de la vari¨¦t¨¦ de contr le. Mafutha et Japon tresimesino donnerent des rendements faibles. Les fermiers class¨¨rent sup¨¦rieure les performances agronomiques de Zapallo, Tainung No 64 et NC1560. Cependant, Mafutha, Japon tresimesino et Tainung No 64 ¨¦taient bien cot¨¦s pour la cuisson. Zapallo et NC1560 ¨¦taient bien cot¨¦s pour la texture ¨¤ sec. Pour les enfants, la couleur interne ¨¦tait l'attribut le plus important pour accepter la vari¨¦t¨¦. Les produits de la patate douce pr¨¦par¨¦s des vari¨¦t¨¦s orange graiss¨¦es ¨¦taient pr¨¦f¨¦r¨¦s par les enfants et les adultes que les ceux pr¨¦par¨¦s des vari¨¦t¨¦s graiss¨¦es de couleur blanche. L'acceptabilit¨¦ des vari¨¦t¨¦s oranges et les produits associ¨¦s ¨¦taient ¨¦lev¨¦s. Mots cl¨¦s: Carot¨¨ne-¦Â, CIP, Ipomea batatas African Crop Science Journal
%U http://www.ajol.info/index.php/acsj/article/view/27883