Abstract：
Rice is an important food in the world, and selenium (Se) is a necessary trace element for the human. So the effects of selenomethionine (SeMet) on photosynthetic capacity, yield and quality of rice at different stages were studied. The results show that SeMet can increase the Ppotosynthetic capacity of rice leaves during each growth stage, the effect of 5 mg/L SeMet treatment was the most significant. At the mature stage of rice, SeMet significantly increased rice yield and total plant biomass, 7.5and 5 mg/L SeMet treatments had the most significant effects, respectively. In addition, SeMet significantly improved the content of Se and processing quality of rice, decreased chalkiness, inhibited amylose synthesis, and optimized flavor. The above indices showed the best results after treatment with 5 mg/L SeMet. It is hoped that this study will provide a theoretical basis for the application of organic selenium in rice production.
摘要：
大米是世界上重要的粮食,硒是人体必需的微量元素。因此，硒代蛋氨酸（SeMet）对光合能力的影响，研究了不同时期水稻的产量和品质。结果表明，SeMet可以提高水稻叶片在各个生育期的人工合成能力，5mg/L的SeMet处理效果最为显著。在水稻成熟期,SeMet显着提高了水稻产量和植物总生物量，7.5和5mg/L的SeMet处理效果最显著，分别。此外,SeMet显著提高了稻米的硒含量和加工品质,白垩减少，抑制直链淀粉的合成，和优化的味道。5mg/LSeMet处理后，上述指标显示最佳效果。希望本研究能为有机硒在水稻生产中的应用提供理论依据。
