Plant Growth and Yield Response to Salinity Stress of Rice Grown under the Application of Different Nitrogen Levels and Bacillus pumilus Strain TUAT-1

Rice is an important food crop, and its production significantly affected by salt stress under the changing climate. Soil-inhabiting microbial inoculants as well efficient nitrogen (N) nutrition may have ameliorative effects on rice growth yield stress. However, of interaction between N application grain not yet fully understood. This study aimed to clarify whether use Bacillus pumilus strain TUAT-1 biofertilizer, along with right amount fertilizer, would alleviate in lowland production. We applied a biofertilizer combination different rates fertilizer: control (0% N), 2.64 g (NH4)2SO4 per nursery tray (100% N: farmer-recommended amount), 3.96 (150% N). Salinity (100 mM NaCl) was at heading stage plants pot culture greenhouse, components were accessed harvest. In phase, increased seedling vigor root development 21-day-old seedlings. reduced chlorophyll content, panicle number, straw biomass, yield; however, either alone or ameliorated salinity-related reduction component parameters. Plants receiving high fertilizer N) showed similar biomass without inoculation, regardless saline non-saline conditions. both conditions, higher inoculated than those TUAT-1. Specifically, combined level led increase 8% 15% when compared their respective Straw (un-inoculated) grown normal conditions + 100% salinity treatments, because enhanced development, which promote soil nutrient uptake. Our results indicated that rate has potential boost capacity this bacteria vigor, subsequently salt-induced yield.