Effect of PBAT Biodegradable Mulch Film Extract on Seed Germination and Seedlings Metabolism of Tobacco

Poly(butylene adipate-co-terephthalate) biodegradable mulch film (PBAT-BMF) is gradually applied in agricultural production, but its potential ecological risks have not been studied so far. In this paper, methyl tert-butyl ether (MTBE) was used to extract organic compounds from PBAT-BMF evaluate effects on tobacco seed germination and seedling metabolism. The results showed that six were found the of PBAT-BMF, among which content diisopropylphenyl isocyanate highest at 557.27 μg g−1. A test scan inhibited seeds. time 1 d later than control(CK), percentage energy non-significantly decreased by 2.50% 1.00%. contrast, extracts significantly affected root length, seedlings height (p < 0.01), 0.24 cm 0.28 cm, respectively. metabolic analysis revealed a certain stress effect an up-regulating soluble sugar, critical acid, biogenic amine, down-regulating alkaloid, indicated carbon nitrogen metabolism pathway tricarboxylic acid cycle alkaloid synthesis disturbed. These extracted had growth seeds, changed pathway. This study can provide theoretical basis for development application PBAT-BMF.