ESTIMATION OF COMBINING ABILITY EFFECTS FOR YIELD AND FATTY ACID-RELATED TRAITS IN BRASSICA RAPA USING LINE BY TESTER ANALYSIS

Brassica rapa is an important oilseed crop in Pakistan. It a rich source of oil and contains 40%–46% oil. In addition, its meal has 38%–40% protein. Given their high levels erucic acid glucosinolate, mustard rapeseed unhealthy as regular cooking A dire need to exploit the genetic variability germplasm necessary improve performance cultivars. The line × tester analysis helped estimate various types gene actions that are quantitative traits. key successful research selecting suitable lines testers designing good mating patterns. Choosing developing genotypes with yield fatty profiles major concern breeders. current on hybridization evaluation accessions sought better harvest related traits from selected germplasm. combining ability effects determination used rapeseed. accessions’ exhibited extremely significant differences Recorded data for different morphological yield-related qualities provided days till 50% flowering, number branches per plant, secondary plant had positive general estimates, all variables notable specific estimates. All characteristics displayed favorable substantial connection examined Among lines, 28244, 40980, 40981 occurred be best combiners showing additive action. cross combinations, 40977 26283, 40979 indicated effects, which showed non-additive total variance due dominance and/or epistasis. results suggested material remarkable study can benefit by improving acids-related components further enhance upcoming breeding programs based strong particular impacts.