Physiological Parameters of Salt Tolerance in Different Genotypes of Oats (Avena sativa L.)

Eight genotypes of oats were screened under different salt stress levels (25, 50, 75, 100, 125, 150, 175 and 200 mM). The effect of salt stress on physiological characteristics of eight oat genotypes (Kent, OL-10, OL-1862, OL-1869, OL-125, OL-1966, OL-1876, OL-1895) cultivated under salt stress conditions was investigated in this study. The experiment was conducted in triplicates in the Punjab Agricultural University, Ludhiana. The results show that the percentage germination of seeds declined significantly beyond 100 and 125mM of NaCl in most of the genotypes. These genotypes showed a marked decline in shoot length, root length, seed vigour I, seed vigour II, dry weight. The varieties could be divided into two groups based on the decrease in shoot length, root length at 100mM which were comparatively sensitive and comparatively tolerant.