Crop Cultivation & Genetic Breeding

Effects of Different Reagents and Temperature on Removing Seed Dormancy of Paris polyphylla var.yunnanensis

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  • (College of Agriculture,Guizhou University/Guizhou Key Laboratory of Propagation and Cultivation on Medicinal Plants,Guiyang 550025,China)

Received date: 2019-08-31

  Online published: 2020-03-15

Abstract

The effects of different concentrations of gibberellin(GA),fluridone(FL) to soak the seeds and different stratification temperature on seed germination and embryo rate of Paris polyphylla var.yunnanensis were studied respectivly to screen the best way to revive the seed of Paris polyphylla var.yunnanensis.The results showed that GA treatment alone,GA+FL combination and sand storage at constant temperature of 20℃ could effectively break the dormancy of the seeds.Among them,the best germination was at 300 mg/L with GA treatment alone, and the germination rate and germination potential were 79.00% and 54.33% respectively.The highest germination rate was 81.33% with GA+FL combination(300 mg/L GA+10 mg/L FL),and the highest germination potential was 54.33% with 300 mg/L GA+0 mg/L FL,and the rotten seed rate was 4.33% with 200 mg/L GA+10 mg/L FL.The seed embryo rate of Paris polyphylla var.yunnanensis increased fastest under constant temperature of 20 ℃ in different temperatures with sand storage.By all accounts of the seeds germination of Paris polyphylla var.yunnanensis,the effects of GA+FL combination and constant temperature of 20℃ sand storage were better than other treatments.That is to say,300 mg/L GA+10 mg/L FL is the optimal seed soaking combination,and constant temperature of 20℃ is optimal for sand storage.

Cite this article

WANG Jiawei, WANG Hualei, ZHAO Zhi, LIU Hongchang, LUO Chunli, CHEN Songshu . Effects of Different Reagents and Temperature on Removing Seed Dormancy of Paris polyphylla var.yunnanensis[J]. Journal of Henan Agricultural Sciences, 2020 , 49(3) : 47 -53 . DOI: 10.15933/j.cnki.1004-3268.2020.03.007

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