Screening of Amaranth (Amaranthus cruentus L.) Mutant Lines for Salinity Tolerance

Aims: The present study was carried out to access the salt tolerance level of nine amaranth (Amaranthus cruentus) mutant lines selected from Benin cultivar ‘Locale’ at young plants stage in comparison with used as control.
 Study Design: experiment laid a Completely Randomized Design three replications.
 Place and Duration Study: screening house University Abomey-Calavi, City Republic May June, 2020.
 Methodology: Three-weeks old stable control were planted pots containing mixture potting soil sand. NaCl concentrations: 0; 100; 150 200 mM given by irrigation once two days Plant growth parameters evaluated after weeks.
 Results: Salt effect caused reduction plant whatever parameter considered significant disparity (p=.001) among genotypes. Growth cultivar, 1, 11 15 most affected under stress whereas that 18; 23 16 least affected. A difference (p=.01 or p=.001) observed index highest line followed 18 2; lowest 17, 10 cultivar.
 Conclusion: Some variability for their resistance. Lines 23, 2 appeared resistant types 15, sensitive. Thus, are promising areas. Further studies necessary determine physiological biochemical mechanisms involved lines’