Post anthesis responses of kodomillet (Paspalum scrobiculatum) genotypes against salinity stress

 Studies on post anthesis salt stress are very important in order to know the growth, enzyme biomarkers against salt stress.  A pot culture experiment was conducted to know the responses of different Kodomillet varieties under salt stress. Kodomillet genotypes IPS 145, IPS 351, IPS 583, IPS 610, IC 426676 and IC 382888 were subjected to 0, 200, 400 and 600 mmol L-1 NaCl stress at post anthesis for about six days.  Growth characters root length, plant fresh and dry weights were inhibited with increased salt stress.  But this reduction was low in case of IPS 583 and IC 426676.  Antioxidant enzymes such as POX, PPO and SOD were increased under increased salt stress conditions and this increment was best reported in IPS 583 and IC 426676.  Catalase activity was decreased in present study with increased NaCl stress.  The data obtained from this investigation have revealed that IPS 583 and IC 426676 were better performers under salt stress. Root growth, plant growth along with POX, PPO and SOD could be considered as the suitable biomarkers to identify the Kodomillet genotypes against NaCl stress.