Phenotypic stability in elite pigeon pea (Cajanus cajan (L.) Mill.) genotypes using biplot models

Authors

  • N Sandhya Kishore Professor Jayashankar Telangana State Agricultural University, Hyderabad, India
  • P Jagan Mohan Rao Professor, Jayashankar Telangana State Agricultural University, Hyderabad, India
  • A Saritha Professor Jayashankar Telangana State Agricultural University, Hyderabad, India
  • G Neelima Professor Jayashankar Telangana State Agricultural University, Hyderabad, India
  • S Sandeep Professor Jayashankar Telangana State Agricultural University, Hyderabad, India
  • P Madhukar Rao Professor Jayashankar Telangana State Agricultural University, Hyderabad, India
  • Sridhar Chouhan Professor Jayashankar Telangana State Agricultural University, Hyderabad, India
  • N Lingaiah Professor Jayashankar Telangana State Agricultural University, Hyderabad, India

DOI:

https://doi.org/10.3329/bjb.v51i2.60435

Abstract

The yield stability of promisingpigeon pea genotypes across six locations was assessed using additive main effects and multiplicative interaction and Genotype plus genotype and environment interaction biplot models. The combined analysis of variance indicated that yield was significantly affected by genotypes, environments and genotype and environment interaction. The first two interaction principal componentsfrom the AMMI analysis accounted for 68.48% and from GGE accounted for 64.4% of variation due to GxE interaction. Both AMMI and GGE biplots identified G3 and G4 as most stable andG4 with the highest yield across six locations. The “What-won-where” biplot revealed that six environments fell into four sectors i.e.,E1and E2fell into one mega environment (ME 1), E3and E6another (ME 2), E4in one mega environment (ME 3) andE5 into another (ME 4). Environments E5and E1were most representative while E1could be regarded as least representative environment.

Bangladesh J. Bot. 51(2): 371-380, 2022 (June)

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Published

2022-06-28

How to Cite

Kishore, N. S. ., Mohan Rao, P. J. ., Saritha, A. ., Neelima, G. ., Sandeep, S. ., Rao, P. M. ., Chouhan , S. ., & Lingaiah, N. . (2022). Phenotypic stability in elite pigeon pea (Cajanus cajan (L.) Mill.) genotypes using biplot models. Bangladesh Journal of Botany, 51(2), 371–380. https://doi.org/10.3329/bjb.v51i2.60435

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