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《Journal of Shandong Agricultural University》 1990-02
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STUDIES ON MECHANISM OF INCREASING SEEDS VIGOR BY OSMOCONDITIONING

Zheng Chengchao;Zou Qi;Cheng Bingsong, (Department of Agronomy, Shandong Agricultural University Taian, China, 271018)  
There were multiple respiratory pathways and electron transport pathways duringimbibition and germination of seeds. The respiratory metabolism of soybean seeds in 25%PEG solution (ψ_w=-1.186 MPa) was quite different from that in pure water. During slowimbibition, the activity of EMP-TCA respiratory pathway of seeds was increased and highactivity of cytochrome electron transport pathway was maintained. In rapidly imbibedseeds the rise of EMP pathway could be related to fermentation. The experiment alsoshowed that the activity of total dehydrogenase, succinic dehydrogenase, cytochromeoxidase and catalase of seeds was increased with PEG treatment.
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