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Seed Germination and Dormancy for Iris Chrysographes (Iridaceae) from China

Seed Germination and Dormancy for Iris Chrysographes (Iridaceae) from China
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摘要 Several Chinese Iris species have potential for medicinal and ornamental use, but they have poor, erratic or slow seed germination. The aims of this study was to classify Iris ehrysographes dormancy type and investigate the optimum treatment for seeds germination through examining the effects of various incubation temperatures, light conditions, scarification, stratification and soil substratum. Seed viability of/. chrysographes was 74% and seeds imbibed water very fast. No seeds germinated on stratification, soil substratum, constant or alternating temperatures, light and darkness treatments. Seeds germination of different mechanical restriction treatments had significant differences. The results indicated that: (1) removal of seed coat was the most effective treatment for/. chrysographes germination; (2) physiological dormancy phenomenon was found in this species.
出处 《Journal of Agricultural Science and Technology(A)》 2013年第6期498-502,共5页 农业科学与技术(A)
关键词 DORMANCY GERMINATION Iris chrysographes seed. 种子萌发 休眠类型 鸢尾科 中国 种子发芽率 虹膜 土壤基质 孵化温度
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