AMMI analysis of cassava response to contrasting environments: case study of genotype by environment effect on pests and diseases, root yield, and carotenoids content in Cameroon

Vista sencilla de ítem
dc.creatorHanna, R.
dc.creatorKulakow, Peter A.
dc.creatorParkes, Elizabeth Y.
dc.creatorIluebbey, Peter O.
dc.creatorNgome, F.A.
dc.creatorSuh, C.
dc.creatorMassussi, J.
dc.creatorChoutnji, I.
dc.creatorWirnkar, V.L.
dc.date2018-09
dc.date2018-09-27T14:25:56Z
dc.date2018-09-27T14:25:56Z
dc.date.accessioned2026-06-27T16:03:35Z
dc.descriptionGenotype by environment interaction remains a substantial issue in all breeding programs. Crop genotypes are generally developed in a central breeding location, but always require the evaluation of breeding products in different environments. This is particularly relevant in countries that have a wide range of climates. Eighteen cassava genotypes were evaluated in Cameroon in eight environments—varying in seasonal rainfall and temperature patterns and soil characteristics—over two cropping seasons. Soil nutrient content was analyzed and trials were established in a randomized complete block design in three replications. Response of genotypes to major cassava pests and diseases, yield and carotenoids content was evaluated. It was observed that four genotypes did not show cassava mosaic disease (CMD) symptoms irrespective of the environments. The local check had highest CMD incidence and severity across all environments. Average number of whitefly per plant across all environments was highest on TMS 96/0023. Average cassava green mite (CGM) infestation was low on all the genotypes. Fresh root yield of five genotypes ranged between 25 and 30 tons per ha for both years. Significant and positive correlation was found across locations between fresh root yield and soil K, P and Mg. AMMI analysis revealed highly significant differences among genotypes and environments and significant genotype × environment interaction for most of the estimated traits, indicating variability in genotypes performance with environment.
dc.identifierhttps://hdl.handle.net/10568/97528
dc.identifier.urihttp://hdl.handle.net/123456789/121328
dc.languageen
dc.publisherSpringer
dc.rightsLimited Access
dc.sourceFotso, A.K., Hanna, R., Kulakow, P., Parkes, E., Iluebbey, P., Ngome, F.A., ... & Wirnkar, V.L. (2018). AMMI analysis of cassava response to contrasting environments: case study of genotype by environment effect on pests and diseases, root yield, and carotenoids content in Cameroon. Euphytica, 214(9), 155-167.
dc.subjectcassava
dc.subjectafrican cassava mosaic virus
dc.subjectroots
dc.subjectyields
dc.subjectsoil fertility
dc.subjectwhiteflies
dc.titleAMMI analysis of cassava response to contrasting environments: case study of genotype by environment effect on pests and diseases, root yield, and carotenoids content in Cameroon
dc.typeJournal Article

Archivos

Colecciones

Instituto Internacional de Agricultura Tropical (IITA)