Vol. 11, Issue 11 (2022)

The improvement of yield stability is paramount to increase the grain yield. Hence, it is a prerequisite for the newly generated advanced breeding lines to undertake multi environmental yield trials for selection of superior and stable genotypes suitable for different environments. The present investigation was carried out in order to identify the superior and stable multi-parent advanced breeding lines in the test locations. Thirty multi-parent advanced breeding lines along with six check varieties were evaluated at three locations in randomized block design. The stability performance was analyzed by using Eberhat and Russel (1966) model and GGE bi-plot technique. The pooled Analysis of variance for stability showed that the mean sums of squares due to environments + (varieties × environment) was found significant for characters such as number of tillers per plant, number of spikelets per panicle and days to 50% flowering. Some of the multi-parent advanced breeding like ML1-6-3-1-23, ML2-5-21-3-154, ML2-7-2-3-160, ML1-8-1-1-31 and ML3-5-2-1-105 showed higher grain yield (kg/ha) and showed stable performance in all three locations. These lines could be further analyzed for mega environment tests in farmer’s fields to identify the most desirable advanced breeding line. Study of molecular diversity using sixty polymorphic SSR markers revealed the existence of high molecular diversity between the breeding lines that grouped them into eight clusters.