Germination of Salicornia bigelovii Ecotypes under Stressing Conditions of Temperature and Salinity and Ameliorative Effects of Plant Growth-promoting Bacteria

摘要: Salinity is a major stress condition. Salicornia bigelovii valuable edible halophyte, considered to be promising resource for cultivation in arid coastal zones. Its productivity depends on the supplementary provision of nitrogen, which an option chemical fertilization. Nevertheless, indiscriminate use fertilizers contributes problem increased salinity. The inoculation plant growth-promoting bacteria (PGPB) represents alternative. Seed ecotypes from four areas [Santa Rosa Chica, Santa Grande, Cruz and Cerro Prieto (CP), Sonora, Mexico] were collected, order inoculate them with two species PGPB (Azospirillum halopraeferens Klebsiella pneumoniae). Two germination tests carried out study effect salinity, temperature regime (night/day) (percentage rate), height, root length biomass produced (fresh dry matter). In first test, all considered, whereas second test only CP ecotype was involved because it found outstanding previous test. Results showed inhibition when salinity higher except CP. decrease seed increase NaCl concentrations at temperatures tested. However, inoculated both PGPB, percentage influenced.