**3. Results**

#### *3.1. Combined Analysis of Variance*

Table 3 and Supplementary Table S1 represent the combined ANOVA of rice genotypes for plant height, tillers per plant, straw yield per plant, and grain yield per plant across eight different locations (Supplementary Table S1). The mean square of genotypes showed significant differences (*p* ≤ 0.01) for traits. The mean square of locations, years, and genotypes by locations, genotypes by years, and genotypes by locations by years (G × L interaction, G × Y interaction, and G × L × Y interaction) showed significant differences (*p* ≤ 0.01) for traits. In our study, the significant G × L interaction effects revealed that rice genotypes responded differently against fluctuation in the environment, which indicated the necessity of testing rice genotypes at multiple locations. Moreover, interaction among genotypes, locations, and years also revealed a highly significant (*p* ≤ 0.01) difference for studied traits. Therefore, further general adaptability and stability analysis across genotypes should be followed before their selection.

**Table 3.** Estimation of significant levels for yield and related traits of seven rice genotypes revealed by combined ANOVA.


df = degree of freedom.
