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International Journal of Botany
Year: 2006  |  Volume: 2  |  Issue: 2  |  Page No.: 104 - 106

AMMI Analysis for Stability of Grain Yield in Rice (Oryza sativa L.)

L. Mahalingam, S. Mahendran, R. Chandra Babu and G. Atlin    

Abstract: Six short duration rice genotypes were tested over fifteen environment in different blocks of Ramanathapuram district of Tamil Nadu. Grain yield data were subjected to the Additive main effects and multiplicative interaction (AMMI) analysis. Results indicated a significant genotype x environment interaction (GEI) that influenced the relative ranking of the varieties across the environments. It was evident from AMMI analysis that genotype, environment and the first principal component of interaction effect accounted for 95.20% of the treatment sum of squares and the first three principal component of interaction effect were significant. As per the AMMI model, three genotypes RM 96019, AD 00119 and AD 99111 were identified as having general adaptability.

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