SASSIKUMAR D., SUDHAGAR R., GOPALAN A.
Abstract
In sunflower, salt enduring stable genotype identification
at field level is attempted through indexing and component analysis. A total
of twenty-five inbreds were raised in both normal and sodic soil. The potential
and stress yield were utilised for salt susceptibility and tolerance index.
Accordingly the genotypes GP336, SF91 and SF30 were identified as tolerant and
substantitated with percent reduction in yield under sodicity stress. The component
analysis with the data on yield and its contributing attributes viz., head diameter,
number of seeds per head, number of whorls per head and single seed weight indicated
that head diameter and single seed weight are the major contributing traits
for instability of yield.
Keywords:
component analysis, screening, sodicity, sunflower, susceptibility
index