Identification of superior mutants in fenugreek through genotype-by-yield trait (GYT) graphical analysis

Abstract

The high yielding fenugreek mutants from M2 population were selected through the genotye-yield trait biplot (GYT biplot). The GYT biplot analysis for both green herbage yield and seed yield indicates that all traits are positively correlated with these yields. Furthermore, green herbage yield and seed yield themselves are positively correlated. Among the 44 mutants analysed, M2-149, M2-181, M2-116, and M2-90 were identified as the top performers in terms of both green herbage and seed yield. These mutants should receive special attention in advanced generations to uncover significant findings on yield improvement and to explore other valuable traits. A distinctive aspect of this study is that it demonstrated the GYT biplot method as a comprehensive and effective tool for evaluating and selecting high-yielding mutants in the M2 generation for fenugreek improvement.