Genetic correlation and path analysis of productive traits in confectionerygroundnut (Arachis hypogaea L.) genotypes

G. M.  DEEPA; LAXMI C.  PATIL; B.   NANDINI; M. G.  PALAKSHAPPA

G. M. DEEPA Department of Genetics and Plant BreedingUniversity of Agricultural Sciences, Dharwad - 580 005, Karnataka, India
LAXMI C. PATIL Department of Genetics and Plant BreedingUniversity of Agricultural Sciences, Dharwad - 580 005, Karnataka, India
B. NANDINI Department of Genetics and Plant BreedingUniversity of Agricultural Sciences, Dharwad - 580 005, Karnataka, India
M. G. PALAKSHAPPA Department of Genetics and Plant BreedingUniversity of Agricultural Sciences, Dharwad - 580 005, Karnataka, India

Keywords: Correlation coefficient, Kernel yield, Path analysis, Pod yield, Seed weight

Abstract

The objective of this study was to look at the genetic correlation and path analysis of productive traits in 31advanced breeding lines in confectionery groundnut, four parents (TG-76, GPBD-5, ICGV 86699, and TGLPS-3) and onecheck (ICGV-06189).The trait hundred seed weight showed a significant positive correlation with pod length, sound maturekernels, mature pods per plant, plant height, pod yield per plant and pod yield according to the correlation coefficientestimates.Sound mature kernels had a significant relationship with shelling percentage and pod yield per plant had apositive relationship with kernel yield and haulm yield. These characteristics are used as selection criteria for higher yield.The highest positive and direct effect on pod yield was found in kernel yield, hundred seed weight, days to 50 per centflowering and sound mature kernel. Hence, direct selection for this trait would be successful