Variability and character association analysis in Taramira (Eruca sativa)

Abstract

One hundred eight accessions of Taramira (Eruca sativa Mill.) evaluated for seed yield during rabi
2010-11 revealed highly significant differences among the accessions for days to 50% flowering, plant height,
number of primary and secondary branches per plant, silique per plant, siliqua length, 1000-seed weight, seed
yield per plant and oil content. High estimates of heritability along with high genetic advance were observed
for siliquae per plant, number of secondary branches per plant and seed yield per plant. Whereas, high
heritability and moderate to low genetic advance were observed for siliqua length, 1000-seed weight, days to
50 per cent flowering, plant height, number of primary branches per plant and oil content. The seed yield per
plant was positively correlated with number of primary branches per plant (0.185), plant height (0.184),
1000-seed weight (0.097) and siliquae per plant (0.027). The path coefficient analysis revealed that on seed
yield of plant height had highest direct effect followed by 1000-seed weight and number of primary branches
per plant. Based upon correlation and path analysis it was concluded that plant height, 1000-seed weight and
number of primary branches per plant are the most important yield contributing traits in taramira. Based on
the per se performance the accessions RTM-809, RTM-815, RTM-814, RTM-845, RTM-855, RTM-861,
RTM-844, RTM-862, RTM-874 and RTM-848 were found superior in seed yield while accessions RTM-831,
RTM-869, RTM-808, RT-845, RTM-884, RTM-868, RTM-830, RTM-852, RTM-870 and RTM-821 showed
maximum oil content in their seeds. These accessions may further be utilized in breeding programme aimed
at improving high seed yield along with oil content.