The influence of genotype environment interaction on the grain yields of lentil (Lens culinaris Medik) genotypes

Mehdi Mohebodini, Hamid Dehghani, Sayyed Hossain Sabaghpour

Abstract


Multi-environment trials are conducted every year for all major crops throughout the world, and best use of the information contained in

Multi-environment trials data for cultivar evaluation and recommendation has been an important issue in plant breeding and agricultural

research. To study the importance of the effects of genotype environment interactions on the yield of lentil (

Lens culinaris

Medik)

genotypes, 11 lentil genotypes were grown in a total of twelve environments spread over four regions of Iran between 2002 and 2004.

Additive main effect and multiplicative interaction (AMMI) analysis was used to understand the G interaction pattern. The AMMI

analysis showed significant additive and multiplicative G interaction effects. The first two interaction principal component axes

captured 40.57% and 18.18% respectively of the G interaction sum of squares. The AMMI model allowed the partitioning of

interaction variance into agronomically important sources (genotype groups), and the specific G patterns that are the basis of these

sources of variance were examined. The AMMI1 biplot indicated that G10 (Local cultivar), G11 (Local cultivar) and G8 (Local cultivar)

with low interactions and average yield was the most stable genotype. The AMMI2 biplot indicated that G11 (Local cultivar), G2 (FLIP

82-1L) and G9 (ILL 6199) were the most stable genotypes.


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