Study on Characteristics of Seed Germination of Syrenia siliculosa Andrz.and Comparison with Brassica chinensis L.
The thesis studied the seed of Syrenia siliculosa Andrz.grows in the northest desert and dunes in Xinjiang,and the comparison of the germination to rape seed under the stress of PEG-6000 and NaCl.The result indicated the natural germination rate of Syrenia siliculosa Andrz.was less than 31％.However,acupuncture of seed coat and gibberellin treatment were used for dormancy breaking,and the seed germination rate increased to 60％ and 92％ respectively.Illumination or darkness had no effect on the seed germination rate,and under low temperature the seed germination rate decreased.In contrast with Brassica chinensis L.,higher seed germination rate under stress of either PEG-6000 or NaCl indicated that Syrenia siliculosa Andrz.was more tolerant to osmotic stess.
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