Applied AMMI (Additive Main Effects and Multiplicative Interaction) Model for Multi-Response of Multi-Environment Trial

Maiyanti, Sri Indra (2010) Applied AMMI (Additive Main Effects and Multiplicative Interaction) Model for Multi-Response of Multi-Environment Trial. In: Seminar Nasional Pendidikan "International Master Program on Mathematics Education", 1 Mei 2010, Pasca Sarjana Universitas Sriwijaya Palembang. (Unpublished)

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    Plant breeders typically conduct large-scale trials to investigate the performance of large numbers of genotypes in several environments, or usually called multi-environment trial (MET). The aim of MET is selecting the best genotypes for further improvements of crops. The powerfull tool for analizing MET and studying genotype x environment iteraction (GEI) is Additive Main Effects and Multiplicative Interaction (AMMI) model. AMMI model combines two-way analysis of variance (ANOVA), to analyze a genotype and an environment effect, and analysis of principal component (PCA), to asses a genotype x environment interaction. The “GE” biplot refers to graph of GEI obtained from AMMI model. The main problem accounted in MET study is the limitation of AMMI model for multi-response. Multi-response become important problem in AMMI model. This is taken into cosideration, since AMMI model is usually still focused on a single response such as yield. It’s caused that various response couldn’t be explained comprehensiveness. Therefore, in this paper analytical approach has been exercised to combine multi-response in order to explain performance genotype x environment interaction. Method to combine multi-response is division by mean (DM). AMMI method with DM multi-respons is exemplified using data from MET 16 genotypes padi in 3 environments and four responses from The center of agricultural technolocy research in south Sumatera. Keywords : AMMI model, multi-response, division by mean.

    Item Type: Conference or Workshop Item (Speech)
    Subjects: Q Science > Q Science (General)
    Q Science > QA Mathematics
    S Agriculture > S Agriculture (General)
    Divisions: Faculty of Mathematics and Natural Sciences > Department of Mathematics
    Depositing User: Sri Indra Maiyanti
    Date Deposited: 01 Jun 2012 14:53
    Last Modified: 01 Jun 2012 14:53

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