Genetic variability of agronomic traits in extra-early maturing Introgression Lines (ILs) of pigeonpea [Cajanus cajan (L.)]

2021 Electronic Journal of Plant Breeding  
A study was designed with a total of 20 pigeonpea extra-early introgression lines along with the checks in RCBD for genetic variability and other genetic parameters for 10 agronomic traits. Data was recorded on days to flower, days to 50% flowering, days to maturity, plant height, the number of primary branches, the number of secondary branches, the number of pods per plant, pod weight per plant, hundred seed weight and grain yield per plant. Considerable variation was observed for all the
more » ... s studied. High heritability coupled with high genetic advance was observed for days to flowering, days to 50% flowering, days to maturity, plant height, the number of pods per plant, pod weight per plant, and grain yield per plant, signifying that these traits governed by additive gene action. Simple selection may be useful for these traits. Further, using PCA analysis, it was found that these traits are ideal for pigeonpea improvement through the selection. Promising lines viz., ICPP
doi:10.37992/2021.1202.071 fatcat:q3kprsw5pfgdtksf42jxm7k6ve