Salinity Resistance of Seven Varieties of Madura Corns on Early Stage of Growth

摘要

Seven of sixteen varieties of Madura Corns (Guluk-Guluk, Manding, Talango, Duko, Elos, Deber and Tambin), were planted on beach area. This research objectives was to study character the germination of maize in saline media. The corns were planted on saline media (0, 100, and 200 mM NaCl), conducted by using randomized block design with 4 replications. Significant differences between treatments were determined Duncan's Multiple Range Test at 5% level. The germination parameters were measured until seven days after treatment such as Full Germination Percent (FGP), Mean Germination Time (MGT), Germination Index (GI), and Salt Tolerance Index (STI). Seedling growth on saline media by wick system hydroponic was measured at 21 days after planting. The parameter measured were seedling height, growth ratio and proline content. The result was salinity decreased germination ability and seedling growth. Duko and Tambin had the highest salinity tolerance on germination, but Manding had the highest on seedling growth.