Effect of genotype and genotype by environment interaction on total cyanide content, fresh root, and starch yield in farmer-­preferred cassava landraces in Tanzania

Mtunguja, Mariam K; Laswai, Henry S; Kanju, Edward; Ndunguru, Joseph; Muzanila, Yasinta C

Effect of genotype and genotype by environment interaction on total cyanide content, fresh root, and starch yield in farmer-preferred cassava landraces in Tanzania

dc.contributor.author	Mtunguja, Mariam K
dc.contributor.author	Laswai, Henry S
dc.contributor.author	Kanju, Edward
dc.contributor.author	Ndunguru, Joseph
dc.contributor.author	Muzanila, Yasinta C
dc.date.accessioned	2023-08-02T09:57:20Z
dc.date.available	2023-08-02T09:57:20Z
dc.date.issued	2016
dc.description	Journal Article	en_US
dc.description.abstract	High starch yield is the most important trait for commercialized cassava starch production. Furthermore, cyanide present in cassava roots poses a health chal- lenge in the use of cassava for food. Cassava genotypes have varying maturity periods that are also environmental dependent. This study aimed at identifying suitable cultivars and optimum time of harvest to maximize starch production across three environments. The study found significant difference between geno- types, locations, harvest period, and all the interactions (P ≤ 0.001) for all traits analyzed. Kiroba recorded high starch yields of 17.4, 12.7, and 8.2 t ha −1 at Chambezi, Amani, and Magadu, respectively. Kilusungu recorded highest cyanide content of 300–400 ppm across all locations but Kiroba recorded highest values of 800 ppm, 15 months after planting at Chambezi. Genotype by environment (GGE) biplot analysis revealed that Kiroba was a superior cultivar in terms of starch yield. Kilusungu recorded highest cyanide content and average starch yield, therefore suitable for use in starch production. The study confirmed effect of genotype and genotype by environment interaction, Kiroba cultivar was su- perior in terms of starch yield and maximum starch yield was obtained at 9 months after planting. Nyamkagile and Kibandameno had the lowest cyanide content across all environments.	en_US
dc.identifier.uri	http://www.suaire.sua.ac.tz/handle/123456789/5513
dc.language.iso	en	en_US
dc.publisher	Wiley Periodicals, Inc	en_US
dc.subject	Cyanogens	en_US
dc.subject	GGE biplots	en_US
dc.subject	Manihot esculenta	en_US
dc.subject	Maturity period	en_US
dc.subject	Starch yield	en_US
dc.title	Effect of genotype and genotype by environment interaction on total cyanide content, fresh root, and starch yield in farmer-preferred cassava landraces in Tanzania	en_US
dc.type	Article	en_US
dc.url	doi: 10.1002/fsn3.345	en_US