Abstract
Lithocarpus lepidocarpa Hayata seeds were collected in 30, Nov. 2003, and the seed were water selected to remove the hollow seed. After water selected, the seeds were cold stratification under 4℃, and showed after 2 months, 4 months, 6 months, and 8 months. Forty seeds were showed as control, 20 seeds were wounded and 30 seeds were de-shelled. Two months cold stratification increase germination vigor and germination rate (85%) than without cold stratification seed as Liu and Kuo (1999) done, and the germination rate of wounded seeds were the same as the seeds only cold stratification, but could germinated faster. More than 4 months cold stratification, the germination rate of not only control but also wounded seed were decrease, while the germination rate of de-shelled seed were no influenced by the duration of cold stratification and maintained the germination rate in 90-100%. The results show that the seed of Lithocarpus lepidocarpus Hayata has dormancy, which could removed after 4 cold stratification for two months, and has serious physical barrier for seed germination. The best germination condition of Lithocarpus lepidocarpa will be cold stratification the water selected seed more than 2 months and de-shelled, which the germination rate will more than 90%.
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