1All India Coordinated Research Project (MULLaRP), Directorate of Research, Central Agricultural University, Imphal-795 004, Manipur, India
4All India Coordinated Research Project (MULLaRP), ICAR-Indian Institute of Pulses Research, Kanpur-208 024, Uttar Pradesh, India
2Research Station, CSK Himachal Pradesh Krishi Vishvavidyalaya, Krishi Vigyan Kendra, Bilaspur-174 029, Himachal Pradesh, India
3Dryland Agriculture Research Station, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Budgam-190 001, Jammu and Kashmir, India
Understanding of genotypic interactions is highly instrumental in urdbean towards identification of suitable genotypes with wider adaptability. Therefore, present experiment with 20 diverse urdbean genotypes was executed over three environments in northern hilly terrain under rainfed conditions. AMMI analysis revealed that environments (E), genotypes (G) and G x E interaction effects were found significant for grain yield (GY). The environment, genotypes and their interactions accounted 46.29%, 25.9% and 22.23% of the total variation. The interaction principal components Axis 1(IPCA 1) and IPCA 2 of AMMI were founds significant (P<0.01) for GY based on Gallob's test. The IPCA1 accounted more than 89% of the G x E interactions effects for the GY. In GGE biplot PC1 and PC2 captured 99.3% of the total variations. Based on GGE and AMMI biplots the genotypes with wider adaptability were VBG 12–034(G7), IPU 13-3(G16) and COBG 13–04(G13). These genotypes are suitable for hilly terrains of northern India and can be further utilized as donor in future urdbean improvement programme.
GE interactions, IPCA, Stability, Urdbean
