AMMI Biplot Analysis for Genotype X Environment Interaction and Stability for Yield in Hybrid Rice (Oryza sativa L.) Under Different Production Seasons
K. Rukmini Devi *
Regional Agricultural Research Station, Mulugu Road, Warangal – 506007, Professor Jayashankar Telangana State Agricultural University, Hyderabad, Telangana State, India.
V. Venkanna
Agricultural College, Aswaraopet, Professor Jayashankar Telangana State Agricultural University, Hyderabad, Telangana State, India.
N. Lingaiah
Agricultural College, Warangal, Professor Jayashankar Telangana State Agricultural University, Hyderabad, Telangana State, India.
K. Rajendra Prasad
Regional Agricultural Research Station, Mulugu Road, Warangal – 506007, Professor Jayashankar Telangana State Agricultural University, Hyderabad, Telangana State, India.
B. Satish Chandra
Regional Agricultural Research Station, Mulugu Road, Warangal – 506007, Professor Jayashankar Telangana State Agricultural University, Hyderabad, Telangana State, India.
Y. Hari
Regional Agricultural Research Station, Mulugu Road, Warangal – 506007, Professor Jayashankar Telangana State Agricultural University, Hyderabad, Telangana State, India.
P. Jagan Mohan Rao
Regional Agricultural Research Station, Mulugu Road, Warangal – 506007, Professor Jayashankar Telangana State Agricultural University, Hyderabad, Telangana State, India.
*Author to whom correspondence should be addressed.
Abstract
The aim of the study was to determine the genotype x environment interaction and stability performance of fifteen rice hybrids in three different production seasons during 2016, 2017 at Regional Agricultural Research Station, Warangal, Telangana. Data was subjected to the additive mean effects and multiplicative interaction (AMMI) analysis, results indicated that significant genotype x environmental interaction (GEI) influenced the relative ranking of the hybrids across the seasons. It was evident from AMMI analysis that first two principal components accounted for 94.09%, which is enough to explain the variability among the hybrids. The hybrids, G9 (WGRH 18), G8 (WGRH-17) and G12 (WGRH-22) and G3 (WGRH-10), exhibited high grain yield. The AMMI 2 biplot revealed that the rice genotype, G15 (WGL-14), close to the origin indicated non sensitive nature of this genotype with the seasons and highly stable genotype across the environments with low yield potential when compared to hybrids. Whereas the rice hybrids, G9 (WGRH-18), G8 (WGRH-17), G3 (WGRH-10) and G5 (WGRH-14), were also close proximity to origin and have limited interaction with the seasons. The rice hybrid, G9 (WGRH-18), has high mean yield with stable performance over three environments being the overall best can be considered for the release after through conformation.
Keywords: Rice, G x E interaction, AMMI biplot, what-won-where biplot.