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《Journal of Anhui Agricultural Sciences》 2008-11
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Study on the Characters of Seed Germination and Seedling Growth of Gentiana scabra Bunge

CHENG Yun-qing et al(Institute of Ecological Environment,Jilin Normal University,Siping,Jilin 136000)  
[Objective] The study aimed to supply scientific basis for ascertaining the seedling-raising technique,sowing date and field management of gentian.[Method] With the seeds of Gentiana scabra Bunge as tested materials,the characters of seed germination and seedling growth of G.scabra were studied through the determination of seed viability and comparative germination experiment.[Result] The cleanliness,fine degree and 1000-seed weight of G.scabra seeds were 56.50%,55.80% and 24.35 mg.Under the condition with constant temperature of 25 ℃ and light,the average germination rate of the seeds was 53.8%±1.5%,being little lower than the determined result by tetrazolium staining(54.7%),but their difference was not significant.Under 30,25,20 and 15 ℃,the growth increments of main root and biomasses of G.scabra were(7.504±0.365),(13.488±0.674),(12.236±0.512),(6.752±0.326) mm and(0.085±0.004),(0.289±0.014),(0.264±0.013),(0.185±0.009) mg resp.Under 100%,50%,25% light intensities and dark treatment,the growth increments of main root and biomasses of G.scabra were(5.974±0.756),(9.425±0.405),(12.547±0.198),(13.524±0.602) mm and(0.185±0.007),(0.308±0.024),(0.318±0.014),(0.127±0.011) mg resp.[Conclusion] The temperature of 25 ℃ with moderate shading should be selected to raise the seedlings of G.scabra.
【Fund】: 吉林师范大学校基金项目资助
【CateGory Index】: S567.239
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