اثر مقادیر مختلف شوری بر جوانه‌زنی و سایر مولفه‌های رشد گیاهچه مرزه تابستانه حاصل از مزارع تیمار شده با مقادیر مختلف فسفر زیستی و شیمیایی

In order to investigate the possibility to reduce the use of chemical fertilizers and replacement of the biological resources of phosphorus, and its effects on the resistance of savory seeds from these treatments against salt stress, two experiments, included first experiment as factorial to produce seeds under different levels of chemical and biological phosphorus and the second one as factorial based on completely randomized design with three replications, was conducted. Treaments were salinity (0, 2, 4 and 6 ds/m NaCl) were done on seeds obtained from plants treated by chemical (0, 50, 100 and 150 kg/ha super phosphate triple) and biological (0, 100, 200 and 300 g/ha Pseudomonas putida and Bacillus lentus) phosphorus. Interaction effect (chemical phosphorus×biological phosphorus×salinity) was significant on the germination percent, germination time, coleoptile length, radicle length, seedling fresh and dry weight. The highest germination percent (96 %), germination time (15.83 days), coleoptile length (9 cm), radicle length (6.66 cm), seedling fresh (0.030 g) and dry weight (0.021 g) belonged to control treatment of salinity (0 ds/m) of seeds obtained from 200 g/ha biological and 50 kg/ha chemical phosphorus. Higher amounts of chemical phosphorus had a significant negative effect on seeds resistance to salt stress, and use of bio-fertilizers in combination with a moderate amount of chemical phosphorous was terrific positive.