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[Objective] The research aimed to study the effects of soaking with paclobutrazol on seeds germination and seelding Growth of Cassia obtusifolia L.[Method] The seeds of Cassia obtusifolia L.were soaked by different concentration solution of paclobutrazol in different hours.[Result] The results showed that soaking Cassia obtusifolia L.seeds with pacbutraol delayed the germination of seeds,reduced the seed germination percentage and the germination energy,but it could increase the concise seed vigor index.And soaking Cassia obtusifolia L.seeds with paclobutraol increased the stem diameter,dwarfed the plant,induced lateral roots growth and enhanced obviously the lodging resistance of seeding.Among those of the control,the effect of 100 mg/L paclobutraol soaking Cassia obtusifolia L.seeds in 24 h was the best.[Conclusion] The study can provide theoretical basis for high yield cultivation of Cassia obtusifolia L.
[Objective] The research aimed to study the effects of soaking with paclobutrazol on seeds germination and seelding Growth of Cassia obtusifolia L. [Method] The seeds of Cassia obtusifolia L. were soaked by different concentration solution of paclobutrazol in different hours. [Result] The results showed that soaking Cassia obtusifolia L.seeds with pacbutraol delayed the germination of seeds, reduced the seed germination percentage and the germination energy, but it could increase the concise seed vigor index. And soaking Cassia obtusifolia L. seeds with paclobutraol increased the stem diameter, dwarfed the plant, induced apparent roots growth and enhanced obviously the lodging resistance of seeding. Among those of the control, the effect of 100 mg / L paclobutraol soaking Cassia obtusifolia L. seeds in 24 h was the best. [Conclusion] The study can provide theoretical basis for high yield cultivation of Cassia obtusifolia L.