GGE BIPLOT ANALYSIS FOR GENOTYPE X ENVIRONMENT INTERACTION ON YIELD TRAIT OF HIGH FE CONTENT RICE GENOTYPES IN INDONESIAN IRRIGATED ENVIRONMENTS
ABSTRACT: The prefalence of
Iron (Fe) defficiency in Indonesia is around 31 – 63.5 %. High Fe content rice lines had been developed
to overcome the problem. This study was aimed to explore the effect of genotype
(G) and genotype × environment interaction (GEI) on yield of 21 high Fe content
rice genotypes under 5 irrigated field environments. The research was conducted
at DS 2011 in 2 locations and DS 2012 in 3 locations following randomized
complete block design with three replications in each location. Combined analysis
of variance showed genotype x environment interaction at 1% probability level,
where G and GEI captured totally 88.8% of total variability. There were two
Mega-environments constructed, i.e. Mega-E1that contained environments of
trials in dry season 2011 (E4 and E5) with the winner of G12 (BP9474C-1-1-B)
and Mega-E2 that contained environments of trials in dry season 2012 (E1, E2,
and E3) with the winner of G3 (A69-1). E1 (Subang, DS 2012), E2 (Karawang, DS
2012), and E3 (Indramaru, DS 2012) had good discriminativeness and
representasiveness for yield trait of high Fe content rice lines. Mean
performance and stability of genotypes indicated that G3 (A69-1; average 6.72
t/ha) was highly stable with high yield.
Author: Untung Susanto, Wage
R. Rohaeni, Sarah B. Johnson, Ali Jamil
Journal Code: jppertaniangg150037
